<?php

namespace Doctrine\DBAL\Tests\Platforms;

use Doctrine\DBAL\Exception;
use Doctrine\DBAL\LockMode;
use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\DBAL\Platforms\SQLServer2012Platform;
use Doctrine\DBAL\Platforms\SQLServerPlatform;
use Doctrine\DBAL\Schema\Column;
use Doctrine\DBAL\Schema\ColumnDiff;
use Doctrine\DBAL\Schema\Index;
use Doctrine\DBAL\Schema\Sequence;
use Doctrine\DBAL\Schema\Table;
use Doctrine\DBAL\Schema\TableDiff;
use Doctrine\DBAL\TransactionIsolationLevel;
use Doctrine\DBAL\Types\Type;
use InvalidArgumentException;

/**
 * @extends AbstractPlatformTestCase<SQLServerPlatform>
 */
class SQLServerPlatformTestCase extends AbstractPlatformTestCase
{
    public function createPlatform(): AbstractPlatform
    {
        return new SQLServer2012Platform();
    }

    public function getGenerateTableSql(): string
    {
        return 'CREATE TABLE test (id INT IDENTITY NOT NULL, test NVARCHAR(255), PRIMARY KEY (id))';
    }

    /**
     * {@inheritDoc}
     */
    public function getGenerateTableWithMultiColumnUniqueIndexSql(): array
    {
        return [
            'CREATE TABLE test (foo NVARCHAR(255), bar NVARCHAR(255))',
            'CREATE UNIQUE INDEX UNIQ_D87F7E0C8C73652176FF8CAA ON test (foo, bar)'
                . ' WHERE foo IS NOT NULL AND bar IS NOT NULL',
        ];
    }

    /**
     * {@inheritDoc}
     */
    public function getGenerateAlterTableSql(): array
    {
        return [
            'ALTER TABLE mytable ADD quota INT',
            'ALTER TABLE mytable DROP COLUMN foo',
            'ALTER TABLE mytable ALTER COLUMN baz NVARCHAR(255) NOT NULL',
            "ALTER TABLE mytable ADD CONSTRAINT DF_6B2BD609_78240498 DEFAULT 'def' FOR baz",
            'ALTER TABLE mytable ALTER COLUMN bloo BIT NOT NULL',
            'ALTER TABLE mytable ADD CONSTRAINT DF_6B2BD609_CECED971 DEFAULT 0 FOR bloo',
            "sp_rename 'mytable', 'userlist'",
            "DECLARE @sql NVARCHAR(MAX) = N''; " .
            "SELECT @sql += N'EXEC sp_rename N''' + dc.name + ''', N''' " .
            "+ REPLACE(dc.name, '6B2BD609', 'E2B58069') + ''', ''OBJECT'';' " .
            'FROM sys.default_constraints dc ' .
            'JOIN sys.tables tbl ON dc.parent_object_id = tbl.object_id ' .
            "WHERE tbl.name = 'userlist';" .
            'EXEC sp_executesql @sql',
        ];
    }

    public function testDoesNotSupportRegexp(): void
    {
        $this->expectException(Exception::class);

        $this->platform->getRegexpExpression();
    }

    public function testGeneratesSqlSnippets(): void
    {
        self::assertEquals('CONVERT(date, GETDATE())', $this->platform->getCurrentDateSQL());
        self::assertEquals('CONVERT(time, GETDATE())', $this->platform->getCurrentTimeSQL());
        self::assertEquals('CURRENT_TIMESTAMP', $this->platform->getCurrentTimestampSQL());
        self::assertEquals('"', $this->platform->getIdentifierQuoteCharacter());

        self::assertEquals(
            '(column1 + column2 + column3)',
            $this->platform->getConcatExpression('column1', 'column2', 'column3')
        );
    }

    public function testGeneratesTransactionsCommands(): void
    {
        self::assertEquals(
            'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED',
            $this->platform->getSetTransactionIsolationSQL(TransactionIsolationLevel::READ_UNCOMMITTED)
        );
        self::assertEquals(
            'SET TRANSACTION ISOLATION LEVEL READ COMMITTED',
            $this->platform->getSetTransactionIsolationSQL(TransactionIsolationLevel::READ_COMMITTED)
        );
        self::assertEquals(
            'SET TRANSACTION ISOLATION LEVEL REPEATABLE READ',
            $this->platform->getSetTransactionIsolationSQL(TransactionIsolationLevel::REPEATABLE_READ)
        );
        self::assertEquals(
            'SET TRANSACTION ISOLATION LEVEL SERIALIZABLE',
            $this->platform->getSetTransactionIsolationSQL(TransactionIsolationLevel::SERIALIZABLE)
        );
    }

    public function testGeneratesDDLSnippets(): void
    {
        $dropDatabaseExpectation = 'DROP DATABASE foobar';

        self::assertEquals('SELECT * FROM sys.databases', $this->platform->getListDatabasesSQL());
        self::assertEquals('CREATE DATABASE foobar', $this->platform->getCreateDatabaseSQL('foobar'));
        self::assertEquals($dropDatabaseExpectation, $this->platform->getDropDatabaseSQL('foobar'));
        self::assertEquals('DROP TABLE foobar', $this->platform->getDropTableSQL('foobar'));
    }

    public function testGeneratesTypeDeclarationForIntegers(): void
    {
        self::assertEquals(
            'INT',
            $this->platform->getIntegerTypeDeclarationSQL([])
        );
        self::assertEquals(
            'INT IDENTITY',
            $this->platform->getIntegerTypeDeclarationSQL(['autoincrement' => true])
        );
        self::assertEquals(
            'INT IDENTITY',
            $this->platform->getIntegerTypeDeclarationSQL(
                ['autoincrement' => true, 'primary' => true]
            )
        );
    }

    public function testGeneratesTypeDeclarationsForStrings(): void
    {
        self::assertEquals(
            'NCHAR(10)',
            $this->platform->getVarcharTypeDeclarationSQL(
                ['length' => 10, 'fixed' => true]
            )
        );
        self::assertEquals(
            'NVARCHAR(50)',
            $this->platform->getVarcharTypeDeclarationSQL(['length' => 50])
        );
        self::assertEquals(
            'NVARCHAR(255)',
            $this->platform->getVarcharTypeDeclarationSQL([])
        );
        self::assertSame('VARCHAR(MAX)', $this->platform->getClobTypeDeclarationSQL([]));
        self::assertSame(
            'VARCHAR(MAX)',
            $this->platform->getClobTypeDeclarationSQL(['length' => 5, 'fixed' => true])
        );
    }

    public function testPrefersIdentityColumns(): void
    {
        self::assertTrue($this->platform->prefersIdentityColumns());
    }

    public function testSupportsIdentityColumns(): void
    {
        self::assertTrue($this->platform->supportsIdentityColumns());
    }

    public function testSupportsCreateDropDatabase(): void
    {
        self::assertTrue($this->platform->supportsCreateDropDatabase());
    }

    public function testSupportsSchemas(): void
    {
        self::assertTrue($this->platform->supportsSchemas());
    }

    public function testDoesNotSupportSavePoints(): void
    {
        self::assertTrue($this->platform->supportsSavepoints());
    }

    public function getGenerateIndexSql(): string
    {
        return 'CREATE INDEX my_idx ON mytable (user_name, last_login)';
    }

    public function getGenerateUniqueIndexSql(): string
    {
        return 'CREATE UNIQUE INDEX index_name ON test (test, test2) WHERE test IS NOT NULL AND test2 IS NOT NULL';
    }

    protected function getGenerateForeignKeySql(): string
    {
        return 'ALTER TABLE test ADD FOREIGN KEY (fk_name_id) REFERENCES other_table (id)';
    }

    public function testModifyLimitQuery(): void
    {
        $sql = $this->platform->modifyLimitQuery('SELECT * FROM user', 10, 0);
        self::assertEquals('SELECT * FROM user ORDER BY (SELECT 0) OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY', $sql);
    }

    public function testModifyLimitQueryWithEmptyOffset(): void
    {
        $sql = $this->platform->modifyLimitQuery('SELECT * FROM user', 10);
        self::assertEquals('SELECT * FROM user ORDER BY (SELECT 0) OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY', $sql);
    }

    public function testModifyLimitQueryWithOffset(): void
    {
        $sql = $this->platform->modifyLimitQuery('SELECT * FROM user ORDER BY username DESC', 10, 5);
        self::assertEquals('SELECT * FROM user ORDER BY username DESC OFFSET 5 ROWS FETCH NEXT 10 ROWS ONLY', $sql);
    }

    public function testModifyLimitQueryWithAscOrderBy(): void
    {
        $sql = $this->platform->modifyLimitQuery('SELECT * FROM user ORDER BY username ASC', 10);
        self::assertEquals('SELECT * FROM user ORDER BY username ASC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY', $sql);
    }

    public function testModifyLimitQueryWithLowercaseOrderBy(): void
    {
        $sql = $this->platform->modifyLimitQuery('SELECT * FROM user order by username', 10);
        self::assertEquals('SELECT * FROM user order by username OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY', $sql);
    }

    public function testModifyLimitQueryWithDescOrderBy(): void
    {
        $sql = $this->platform->modifyLimitQuery('SELECT * FROM user ORDER BY username DESC', 10);
        self::assertEquals('SELECT * FROM user ORDER BY username DESC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY', $sql);
    }

    public function testModifyLimitQueryWithMultipleOrderBy(): void
    {
        $sql = $this->platform->modifyLimitQuery(
            'SELECT * FROM user ORDER BY username DESC, usereamil ASC',
            10
        );

        self::assertEquals(
            'SELECT * FROM user ORDER BY username DESC, usereamil ASC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );
    }

    public function testModifyLimitQueryWithSubSelect(): void
    {
        $sql = $this->platform->modifyLimitQuery(
            'SELECT * FROM (SELECT u.id as uid, u.name as uname) dctrn_result',
            10
        );

        self::assertEquals(
            'SELECT * FROM ('
            . 'SELECT u.id as uid, u.name as uname'
            . ') dctrn_result ORDER BY (SELECT 0) OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );
    }

    public function testModifyLimitQueryWithSubSelectAndOrder(): void
    {
        $sql = $this->platform->modifyLimitQuery(
            'SELECT * FROM ('
                . 'SELECT u.id as uid, u.name as uname'
                . ') dctrn_result ORDER BY uname DESC',
            10
        );

        self::assertEquals(
            'SELECT * FROM ('
                . 'SELECT u.id as uid, u.name as uname'
                . ') dctrn_result ORDER BY uname DESC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );

        $sql = $this->platform->modifyLimitQuery(
            'SELECT * FROM (SELECT u.id, u.name) dctrn_result ORDER BY name DESC',
            10
        );

        self::assertEquals(
            'SELECT * FROM ('
                . 'SELECT u.id, u.name'
                . ') dctrn_result ORDER BY name DESC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );
    }

    public function testModifyLimitQueryWithSubSelectAndMultipleOrder(): void
    {
        $sql = $this->platform->modifyLimitQuery(
            'SELECT * FROM (SELECT u.id as uid, u.name as uname) dctrn_result ORDER BY uname DESC, uid ASC',
            10,
            5
        );

        self::assertEquals(
            'SELECT * FROM ('
                . 'SELECT u.id as uid, u.name as uname'
                . ') dctrn_result ORDER BY uname DESC, uid ASC OFFSET 5 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );

        $sql = $this->platform->modifyLimitQuery(
            'SELECT * FROM (SELECT u.id uid, u.name uname) dctrn_result ORDER BY uname DESC, uid ASC',
            10,
            5
        );

        self::assertEquals(
            'SELECT * FROM ('
                . 'SELECT u.id uid, u.name uname'
                . ') dctrn_result ORDER BY uname DESC, uid ASC OFFSET 5 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );

        $sql = $this->platform->modifyLimitQuery(
            'SELECT * FROM (SELECT u.id, u.name) dctrn_result ORDER BY name DESC, id ASC',
            10,
            5
        );

        self::assertEquals(
            'SELECT * FROM ('
                . 'SELECT u.id, u.name'
                . ') dctrn_result ORDER BY name DESC, id ASC OFFSET 5 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );
    }

    public function testModifyLimitQueryWithFromColumnNames(): void
    {
        $sql = $this->platform->modifyLimitQuery('SELECT a.fromFoo, fromBar FROM foo', 10);

        self::assertEquals(
            'SELECT a.fromFoo, fromBar FROM foo ORDER BY (SELECT 0) OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );
    }

    public function testModifyLimitQueryWithExtraLongQuery(): void
    {
        $query = 'SELECT table1.column1, table2.column2, table3.column3, table4.column4, '
            . 'table5.column5, table6.column6, table7.column7, table8.column8'
            . ' FROM table1, table2, table3, table4, table5, table6, table7, table8'
            . ' WHERE (table1.column1 = table2.column2) AND (table1.column1 = table3.column3)'
            . ' AND (table1.column1 = table4.column4) AND (table1.column1 = table5.column5)'
            . ' AND (table1.column1 = table6.column6) AND (table1.column1 = table7.column7)'
            . ' AND (table1.column1 = table8.column8)'
            . ' AND (table2.column2 = table3.column3) AND (table2.column2 = table4.column4)'
            . ' AND (table2.column2 = table5.column5) AND (table2.column2 = table6.column6)'
            . ' AND (table2.column2 = table7.column7) AND (table2.column2 = table8.column8)'
            . ' AND (table3.column3 = table4.column4) AND (table3.column3 = table5.column5)'
            . ' AND (table3.column3 = table6.column6) AND (table3.column3 = table7.column7)'
            . ' AND (table3.column3 = table8.column8)'
            . ' AND (table4.column4 = table5.column5) AND (table4.column4 = table6.column6)'
            . ' AND (table4.column4 = table7.column7) AND (table4.column4 = table8.column8)'
            . ' AND (table5.column5 = table6.column6) AND (table5.column5 = table7.column7)'
            . ' AND (table5.column5 = table8.column8)'
            . ' AND (table6.column6 = table7.column7) AND (table6.column6 = table8.column8)'
            . ' AND (table7.column7 = table8.column8)';

        $expected = 'SELECT table1.column1, table2.column2, table3.column3, table4.column4, '
            . 'table5.column5, table6.column6, table7.column7, table8.column8'
            . ' FROM table1, table2, table3, table4, table5, table6, table7, table8'
            . ' WHERE (table1.column1 = table2.column2) AND (table1.column1 = table3.column3)'
            . ' AND (table1.column1 = table4.column4) AND (table1.column1 = table5.column5)'
            . ' AND (table1.column1 = table6.column6) AND (table1.column1 = table7.column7)'
            . ' AND (table1.column1 = table8.column8)'
            . ' AND (table2.column2 = table3.column3) AND (table2.column2 = table4.column4)'
            . ' AND (table2.column2 = table5.column5) AND (table2.column2 = table6.column6)'
            . ' AND (table2.column2 = table7.column7) AND (table2.column2 = table8.column8)'
            . ' AND (table3.column3 = table4.column4) AND (table3.column3 = table5.column5)'
            . ' AND (table3.column3 = table6.column6) AND (table3.column3 = table7.column7)'
            . ' AND (table3.column3 = table8.column8)'
            . ' AND (table4.column4 = table5.column5) AND (table4.column4 = table6.column6)'
            . ' AND (table4.column4 = table7.column7) AND (table4.column4 = table8.column8)'
            . ' AND (table5.column5 = table6.column6) AND (table5.column5 = table7.column7)'
            . ' AND (table5.column5 = table8.column8)'
            . ' AND (table6.column6 = table7.column7) AND (table6.column6 = table8.column8)'
            . ' AND (table7.column7 = table8.column8)'
            . ' ORDER BY (SELECT 0) OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY';

        self::assertEquals(
            $expected,
            $this->platform->modifyLimitQuery($query, 10)
        );
    }

    public function testModifyLimitQueryWithOrderByClause(): void
    {
        $sql = 'SELECT m0_.NOMBRE AS NOMBRE0, m0_.FECHAINICIO AS FECHAINICIO1, m0_.FECHAFIN AS FECHAFIN2'
            . ' FROM MEDICION m0_'
            . ' INNER JOIN ESTUDIO e1_ ON m0_.ESTUDIO_ID = e1_.ID'
            . ' INNER JOIN CLIENTE c2_ ON e1_.CLIENTE_ID = c2_.ID'
            . ' INNER JOIN USUARIO u3_ ON c2_.ID = u3_.CLIENTE_ID'
            . ' WHERE u3_.ID = ? ORDER BY m0_.FECHAINICIO DESC';

        $expected = 'SELECT m0_.NOMBRE AS NOMBRE0, m0_.FECHAINICIO AS FECHAINICIO1, m0_.FECHAFIN AS FECHAFIN2'
            . ' FROM MEDICION m0_'
            . ' INNER JOIN ESTUDIO e1_ ON m0_.ESTUDIO_ID = e1_.ID'
            . ' INNER JOIN CLIENTE c2_ ON e1_.CLIENTE_ID = c2_.ID'
            . ' INNER JOIN USUARIO u3_ ON c2_.ID = u3_.CLIENTE_ID'
            . ' WHERE u3_.ID = ? ORDER BY m0_.FECHAINICIO DESC OFFSET 5 ROWS FETCH NEXT 10 ROWS ONLY';

        $actual = $this->platform->modifyLimitQuery($sql, 10, 5);

        self::assertEquals($expected, $actual);
    }

    public function testModifyLimitQueryWithSubSelectInSelectList(): void
    {
        $sql = $this->platform->modifyLimitQuery(
            'SELECT ' .
            'u.id, ' .
            '(u.foo/2) foodiv, ' .
            'CONCAT(u.bar, u.baz) barbaz, ' .
            '(SELECT (SELECT COUNT(*) FROM login l WHERE l.profile_id = p.id) ' .
            'FROM profile p WHERE p.user_id = u.id) login_count ' .
            'FROM user u ' .
            "WHERE u.status = 'disabled'",
            10
        );

        self::assertEquals(
            'SELECT ' .
            'u.id, ' .
            '(u.foo/2) foodiv, ' .
            'CONCAT(u.bar, u.baz) barbaz, ' .
            '(SELECT (SELECT COUNT(*) FROM login l WHERE l.profile_id = p.id) ' .
            'FROM profile p WHERE p.user_id = u.id) login_count ' .
            'FROM user u ' .
            "WHERE u.status = 'disabled' " .
            'ORDER BY (SELECT 0) OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );
    }

    public function testModifyLimitQueryWithSubSelectInSelectListAndOrderByClause(): void
    {
        $sql = $this->platform->modifyLimitQuery(
            'SELECT ' .
            'u.id, ' .
            '(u.foo/2) foodiv, ' .
            'CONCAT(u.bar, u.baz) barbaz, ' .
            '(SELECT (SELECT COUNT(*) FROM login l WHERE l.profile_id = p.id) ' .
            'FROM profile p WHERE p.user_id = u.id) login_count ' .
            'FROM user u ' .
            "WHERE u.status = 'disabled' " .
            'ORDER BY u.username DESC',
            10,
            5
        );

        self::assertEquals(
            'SELECT ' .
            'u.id, ' .
            '(u.foo/2) foodiv, ' .
            'CONCAT(u.bar, u.baz) barbaz, ' .
            '(SELECT (SELECT COUNT(*) FROM login l WHERE l.profile_id = p.id) ' .
            'FROM profile p WHERE p.user_id = u.id) login_count ' .
            'FROM user u ' .
            "WHERE u.status = 'disabled' " .
            'ORDER BY u.username DESC ' .
            'OFFSET 5 ROWS FETCH NEXT 10 ROWS ONLY',
            $sql
        );
    }

    public function testModifyLimitQueryWithAggregateFunctionInOrderByClause(): void
    {
        $sql = $this->platform->modifyLimitQuery(
            'SELECT ' .
            'MAX(heading_id) aliased, ' .
            'code ' .
            'FROM operator_model_operator ' .
            'GROUP BY code ' .
            'ORDER BY MAX(heading_id) DESC',
            1,
            0
        );

        self::assertEquals(
            'SELECT ' .
            'MAX(heading_id) aliased, ' .
            'code ' .
            'FROM operator_model_operator ' .
            'GROUP BY code ' .
            'ORDER BY MAX(heading_id) DESC ' .
            'OFFSET 0 ROWS FETCH NEXT 1 ROWS ONLY',
            $sql
        );
    }

    public function testModifyLimitSubqueryWithJoinAndSubqueryOrderedByColumnFromBaseTable(): void
    {
        $querySql   = 'SELECT DISTINCT id_0, name_1 '
            . 'FROM ('
            . 'SELECT t1.id AS id_0, t2.name AS name_1 '
            . 'FROM table_parent t1 '
            . 'LEFT JOIN join_table t2 ON t1.id = t2.table_id'
            . ') dctrn_result '
            . 'ORDER BY id_0 ASC';
        $alteredSql = 'SELECT DISTINCT id_0, name_1 '
            . 'FROM ('
            . 'SELECT t1.id AS id_0, t2.name AS name_1 '
            . 'FROM table_parent t1 '
            . 'LEFT JOIN join_table t2 ON t1.id = t2.table_id'
            . ') dctrn_result '
            . 'ORDER BY id_0 ASC OFFSET 0 ROWS FETCH NEXT 5 ROWS ONLY';
        $sql        = $this->platform->modifyLimitQuery($querySql, 5);
        self::assertEquals($alteredSql, $sql);
    }

    public function testModifyLimitSubqueryWithJoinAndSubqueryOrderedByColumnFromJoinTable(): void
    {
        $querySql   = 'SELECT DISTINCT id_0, name_1 '
            . 'FROM ('
            . 'SELECT t1.id AS id_0, t2.name AS name_1 '
            . 'FROM table_parent t1 '
            . 'LEFT JOIN join_table t2 ON t1.id = t2.table_id'
            . ') dctrn_result '
            . 'ORDER BY name_1 ASC';
        $alteredSql = 'SELECT DISTINCT id_0, name_1 '
            . 'FROM ('
            . 'SELECT t1.id AS id_0, t2.name AS name_1 '
            . 'FROM table_parent t1 '
            . 'LEFT JOIN join_table t2 ON t1.id = t2.table_id'
            . ') dctrn_result '
            . 'ORDER BY name_1 ASC OFFSET 0 ROWS FETCH NEXT 5 ROWS ONLY';
        $sql        = $this->platform->modifyLimitQuery($querySql, 5);
        self::assertEquals($alteredSql, $sql);
    }

    public function testModifyLimitSubqueryWithJoinAndSubqueryOrderedByColumnsFromBothTables(): void
    {
        $querySql   = 'SELECT DISTINCT id_0, name_1, foo_2 '
            . 'FROM ('
            . 'SELECT t1.id AS id_0, t2.name AS name_1, t2.foo AS foo_2 '
            . 'FROM table_parent t1 '
            . 'LEFT JOIN join_table t2 ON t1.id = t2.table_id'
            . ') dctrn_result '
            . 'ORDER BY name_1 ASC, foo_2 DESC';
        $alteredSql = 'SELECT DISTINCT id_0, name_1, foo_2 '
            . 'FROM ('
            . 'SELECT t1.id AS id_0, t2.name AS name_1, t2.foo AS foo_2 '
            . 'FROM table_parent t1 '
            . 'LEFT JOIN join_table t2 ON t1.id = t2.table_id'
            . ') dctrn_result '
            . 'ORDER BY name_1 ASC, foo_2 DESC OFFSET 0 ROWS FETCH NEXT 5 ROWS ONLY';
        $sql        = $this->platform->modifyLimitQuery($querySql, 5);
        self::assertEquals($alteredSql, $sql);
    }

    public function testModifyLimitSubquerySimple(): void
    {
        $query = 'SELECT DISTINCT id_0 FROM ('
            . 'SELECT k0_.id AS id_0, k0_.column AS column_1 FROM key_table k0_ WHERE (k0_.where_column IN (1))'
            . ') dctrn_result';

        $expected = 'SELECT DISTINCT id_0 FROM ('
            . 'SELECT k0_.id AS id_0, k0_.column AS column_1 FROM key_table k0_ WHERE (k0_.where_column IN (1))'
            . ') dctrn_result ORDER BY 1 OFFSET 0 ROWS FETCH NEXT 20 ROWS ONLY';

        self::assertEquals(
            $expected,
            $this->platform->modifyLimitQuery($query, 20)
        );
    }

    public function testQuoteIdentifier(): void
    {
        self::assertEquals('[fo]]o]', $this->platform->quoteIdentifier('fo]o'));
        self::assertEquals('[test]', $this->platform->quoteIdentifier('test'));
        self::assertEquals('[test].[test]', $this->platform->quoteIdentifier('test.test'));
    }

    public function testQuoteSingleIdentifier(): void
    {
        self::assertEquals('[fo]]o]', $this->platform->quoteSingleIdentifier('fo]o'));
        self::assertEquals('[test]', $this->platform->quoteSingleIdentifier('test'));
        self::assertEquals('[test.test]', $this->platform->quoteSingleIdentifier('test.test'));
    }

    public function testCreateClusteredIndex(): void
    {
        $idx = new Index('idx', ['id']);
        $idx->addFlag('clustered');
        self::assertEquals('CREATE CLUSTERED INDEX idx ON tbl (id)', $this->platform->getCreateIndexSQL($idx, 'tbl'));
    }

    public function testCreateNonClusteredPrimaryKeyInTable(): void
    {
        $table = new Table('tbl');
        $table->addColumn('id', 'integer');
        $table->setPrimaryKey(['id']);
        $table->getIndex('primary')->addFlag('nonclustered');

        self::assertEquals(
            ['CREATE TABLE tbl (id INT NOT NULL, PRIMARY KEY NONCLUSTERED (id))'],
            $this->platform->getCreateTableSQL($table)
        );
    }

    public function testCreateNonClusteredPrimaryKey(): void
    {
        $idx = new Index('idx', ['id'], false, true);
        $idx->addFlag('nonclustered');
        self::assertEquals(
            'ALTER TABLE tbl ADD PRIMARY KEY NONCLUSTERED (id)',
            $this->platform->getCreatePrimaryKeySQL($idx, 'tbl')
        );
    }

    public function testAlterAddPrimaryKey(): void
    {
        $idx = new Index('idx', ['id'], false, true);
        self::assertEquals('ALTER TABLE tbl ADD PRIMARY KEY (id)', $this->platform->getCreateIndexSQL($idx, 'tbl'));
    }

    /**
     * {@inheritDoc}
     */
    protected function getQuotedColumnInPrimaryKeySQL(): array
    {
        return ['CREATE TABLE [quoted] ([create] NVARCHAR(255) NOT NULL, PRIMARY KEY ([create]))'];
    }

    /**
     * {@inheritDoc}
     */
    protected function getQuotedColumnInIndexSQL(): array
    {
        return [
            'CREATE TABLE [quoted] ([create] NVARCHAR(255) NOT NULL)',
            'CREATE INDEX IDX_22660D028FD6E0FB ON [quoted] ([create])',
        ];
    }

    /**
     * {@inheritDoc}
     */
    protected function getQuotedNameInIndexSQL(): array
    {
        return [
            'CREATE TABLE test (column1 NVARCHAR(255) NOT NULL)',
            'CREATE INDEX [key] ON test (column1)',
        ];
    }

    /**
     * {@inheritDoc}
     */
    protected function getQuotedColumnInForeignKeySQL(): array
    {
        return [
            'CREATE TABLE [quoted] ([create] NVARCHAR(255) NOT NULL, '
                . 'foo NVARCHAR(255) NOT NULL, [bar] NVARCHAR(255) NOT NULL)',
            'ALTER TABLE [quoted] ADD CONSTRAINT FK_WITH_RESERVED_KEYWORD'
                . ' FOREIGN KEY ([create], foo, [bar]) REFERENCES [foreign] ([create], bar, [foo-bar])',
            'ALTER TABLE [quoted] ADD CONSTRAINT FK_WITH_NON_RESERVED_KEYWORD'
                . ' FOREIGN KEY ([create], foo, [bar]) REFERENCES foo ([create], bar, [foo-bar])',
            'ALTER TABLE [quoted] ADD CONSTRAINT FK_WITH_INTENDED_QUOTATION'
                . ' FOREIGN KEY ([create], foo, [bar]) REFERENCES [foo-bar] ([create], bar, [foo-bar])',
        ];
    }

    public function testGetCreateSchemaSQL(): void
    {
        $schemaName = 'schema';
        $sql        = $this->platform->getCreateSchemaSQL($schemaName);
        self::assertEquals('CREATE SCHEMA ' . $schemaName, $sql);
    }

    public function testCreateTableWithSchemaColumnComments(): void
    {
        $table = new Table('testschema.test');
        $table->addColumn('id', 'integer', ['comment' => 'This is a comment']);
        $table->setPrimaryKey(['id']);

        $expectedSql = [
            'CREATE TABLE testschema.test (id INT NOT NULL, PRIMARY KEY (id))',
            "EXEC sp_addextendedproperty N'MS_Description', N'This is a comment', "
                . "N'SCHEMA', 'testschema', N'TABLE', 'test', N'COLUMN', id",
        ];

        self::assertEquals($expectedSql, $this->platform->getCreateTableSQL($table));
    }

    public function testAlterTableWithSchemaColumnComments(): void
    {
        $tableDiff                        = new TableDiff('testschema.mytable');
        $tableDiff->addedColumns['quota'] = new Column('quota', Type::getType('integer'), ['comment' => 'A comment']);

        $expectedSql = [
            'ALTER TABLE testschema.mytable ADD quota INT NOT NULL',
            "EXEC sp_addextendedproperty N'MS_Description', N'A comment', "
                . "N'SCHEMA', 'testschema', N'TABLE', 'mytable', N'COLUMN', quota",
        ];

        self::assertEquals($expectedSql, $this->platform->getAlterTableSQL($tableDiff));
    }

    public function testAlterTableWithSchemaDropColumnComments(): void
    {
        $tableDiff                          = new TableDiff('testschema.mytable');
        $tableDiff->changedColumns['quota'] = new ColumnDiff(
            'quota',
            new Column('quota', Type::getType('integer'), []),
            ['comment'],
            new Column('quota', Type::getType('integer'), ['comment' => 'A comment'])
        );

        $expectedSql = [
            "EXEC sp_dropextendedproperty N'MS_Description'"
                . ", N'SCHEMA', 'testschema', N'TABLE', 'mytable', N'COLUMN', quota",
        ];

        self::assertEquals($expectedSql, $this->platform->getAlterTableSQL($tableDiff));
    }

    public function testAlterTableWithSchemaUpdateColumnComments(): void
    {
        $tableDiff                          = new TableDiff('testschema.mytable');
        $tableDiff->changedColumns['quota'] = new ColumnDiff(
            'quota',
            new Column('quota', Type::getType('integer'), ['comment' => 'B comment']),
            ['comment'],
            new Column('quota', Type::getType('integer'), ['comment' => 'A comment'])
        );

        $expectedSql = ["EXEC sp_updateextendedproperty N'MS_Description', N'B comment', "
                . "N'SCHEMA', 'testschema', N'TABLE', 'mytable', N'COLUMN', quota",
        ];

        self::assertEquals($expectedSql, $this->platform->getAlterTableSQL($tableDiff));
    }

    /**
     * {@inheritDoc}
     */
    public function getCreateTableColumnCommentsSQL(): array
    {
        return [
            'CREATE TABLE test (id INT NOT NULL, PRIMARY KEY (id))',
            "EXEC sp_addextendedproperty N'MS_Description', N'This is a comment', "
                . "N'SCHEMA', 'dbo', N'TABLE', 'test', N'COLUMN', id",
        ];
    }

    /**
     * {@inheritDoc}
     */
    public function getAlterTableColumnCommentsSQL(): array
    {
        return [
            'ALTER TABLE mytable ADD quota INT NOT NULL',
            "EXEC sp_addextendedproperty N'MS_Description', N'A comment', "
                . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', quota",
        ];
    }

    /**
     * {@inheritDoc}
     */
    public function getCreateTableColumnTypeCommentsSQL(): array
    {
        return [
            'CREATE TABLE test (id INT NOT NULL, data VARCHAR(MAX) NOT NULL, PRIMARY KEY (id))',
            "EXEC sp_addextendedproperty N'MS_Description', N'(DC2Type:array)', "
                . "N'SCHEMA', 'dbo', N'TABLE', 'test', N'COLUMN', data",
        ];
    }

    public function testGeneratesCreateTableSQLWithColumnComments(): void
    {
        $table = new Table('mytable');
        $table->addColumn('id', 'integer', ['autoincrement' => true]);
        $table->addColumn('comment_null', 'integer', ['comment' => null]);
        $table->addColumn('comment_false', 'integer', ['comment' => false]);
        $table->addColumn('comment_empty_string', 'integer', ['comment' => '']);
        $table->addColumn('comment_integer_0', 'integer', ['comment' => 0]);
        $table->addColumn('comment_float_0', 'integer', ['comment' => 0.0]);
        $table->addColumn('comment_string_0', 'integer', ['comment' => '0']);
        $table->addColumn('comment', 'integer', ['comment' => 'Doctrine 0wnz you!']);
        $table->addColumn(
            '`comment_quoted`',
            'integer',
            ['comment' => 'Doctrine 0wnz comments for explicitly quoted columns!']
        );
        $table->addColumn('create', 'integer', ['comment' => 'Doctrine 0wnz comments for reserved keyword columns!']);
        $table->addColumn('commented_type', 'object');
        $table->addColumn('commented_type_with_comment', 'array', ['comment' => 'Doctrine array type.']);
        $table->addColumn('comment_with_string_literal_char', 'string', ['comment' => "O'Reilly"]);
        $table->setPrimaryKey(['id']);

        self::assertEquals(
            [
                'CREATE TABLE mytable (id INT IDENTITY NOT NULL, comment_null INT NOT NULL, '
                    . 'comment_false INT NOT NULL, '
                    . 'comment_empty_string INT NOT NULL, '
                    . 'comment_integer_0 INT NOT NULL, '
                    . 'comment_float_0 INT NOT NULL, '
                    . 'comment_string_0 INT NOT NULL, '
                    . 'comment INT NOT NULL, '
                    . '[comment_quoted] INT NOT NULL, '
                    . '[create] INT NOT NULL, '
                    . 'commented_type VARCHAR(MAX) NOT NULL, '
                    . 'commented_type_with_comment VARCHAR(MAX) NOT NULL, '
                    . 'comment_with_string_literal_char NVARCHAR(255) NOT NULL, '
                    . 'PRIMARY KEY (id))',
                "EXEC sp_addextendedproperty N'MS_Description', "
                    . "N'0', N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment_integer_0",
                "EXEC sp_addextendedproperty N'MS_Description', "
                    . "N'0', N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment_float_0",
                "EXEC sp_addextendedproperty N'MS_Description', "
                    . "N'0', N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment_string_0",
                "EXEC sp_addextendedproperty N'MS_Description', "
                    . "N'Doctrine 0wnz you!', N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment",
                "EXEC sp_addextendedproperty N'MS_Description', "
                    . "N'Doctrine 0wnz comments for explicitly quoted columns!', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', [comment_quoted]",
                "EXEC sp_addextendedproperty N'MS_Description', "
                    . "N'Doctrine 0wnz comments for reserved keyword columns!', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', [create]",
                "EXEC sp_addextendedproperty N'MS_Description', "
                    . "N'(DC2Type:object)', N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', commented_type",
                "EXEC sp_addextendedproperty N'MS_Description', "
                    . "N'Doctrine array type.(DC2Type:array)', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', commented_type_with_comment",
                "EXEC sp_addextendedproperty N'MS_Description', N'O''Reilly', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment_with_string_literal_char",
            ],
            $this->platform->getCreateTableSQL($table)
        );
    }

    public function testGeneratesAlterTableSQLWithColumnComments(): void
    {
        $table = new Table('mytable');
        $table->addColumn('id', 'integer', ['autoincrement' => true]);
        $table->addColumn('comment_null', 'integer', ['comment' => null]);
        $table->addColumn('comment_false', 'integer', ['comment' => false]);
        $table->addColumn('comment_empty_string', 'integer', ['comment' => '']);
        $table->addColumn('comment_integer_0', 'integer', ['comment' => 0]);
        $table->addColumn('comment_float_0', 'integer', ['comment' => 0.0]);
        $table->addColumn('comment_string_0', 'integer', ['comment' => '0']);
        $table->addColumn('comment', 'integer', ['comment' => 'Doctrine 0wnz you!']);
        $table->addColumn(
            '`comment_quoted`',
            'integer',
            ['comment' => 'Doctrine 0wnz comments for explicitly quoted columns!']
        );
        $table->addColumn('create', 'integer', ['comment' => 'Doctrine 0wnz comments for reserved keyword columns!']);
        $table->addColumn('commented_type', 'object');
        $table->addColumn('commented_type_with_comment', 'array', ['comment' => 'Doctrine array type.']);
        $table->addColumn('comment_with_string_literal_quote_char', 'array', ['comment' => "O'Reilly"]);
        $table->setPrimaryKey(['id']);

        $tableDiff            = new TableDiff('mytable');
        $tableDiff->fromTable = $table;

        $tableDiff->addedColumns['added_comment_none']
            = new Column('added_comment_none', Type::getType('integer'));

        $tableDiff->addedColumns['added_comment_null']
            = new Column('added_comment_null', Type::getType('integer'), ['comment' => null]);

        $tableDiff->addedColumns['added_comment_false']
            = new Column('added_comment_false', Type::getType('integer'), ['comment' => false]);

        $tableDiff->addedColumns['added_comment_empty_string']
            = new Column('added_comment_empty_string', Type::getType('integer'), ['comment' => '']);

        $tableDiff->addedColumns['added_comment_integer_0']
            = new Column('added_comment_integer_0', Type::getType('integer'), ['comment' => 0]);

        $tableDiff->addedColumns['added_comment_float_0']
            = new Column('added_comment_float_0', Type::getType('integer'), ['comment' => 0.0]);

        $tableDiff->addedColumns['added_comment_string_0']
            = new Column('added_comment_string_0', Type::getType('integer'), ['comment' => '0']);

        $tableDiff->addedColumns['added_comment']
            = new Column('added_comment', Type::getType('integer'), ['comment' => 'Doctrine']);

        $tableDiff->addedColumns['`added_comment_quoted`']
            = new Column('`added_comment_quoted`', Type::getType('integer'), ['comment' => 'rulez']);

        $tableDiff->addedColumns['select']
            = new Column('select', Type::getType('integer'), ['comment' => '666']);

        $tableDiff->addedColumns['added_commented_type']
            = new Column('added_commented_type', Type::getType('object'));

        $tableDiff->addedColumns['added_commented_type_with_comment']
            = new Column('added_commented_type_with_comment', Type::getType('array'), ['comment' => '666']);

        $tableDiff->addedColumns['added_comment_with_string_literal_char']
            = new Column('added_comment_with_string_literal_char', Type::getType('string'), ['comment' => "''"]);

        $tableDiff->renamedColumns['comment_float_0']
            = new Column('comment_double_0', Type::getType('decimal'), ['comment' => 'Double for real!']);

        // Add comment to non-commented column.
        $tableDiff->changedColumns['id'] = new ColumnDiff(
            'id',
            new Column('id', Type::getType('integer'), ['autoincrement' => true, 'comment' => 'primary']),
            ['comment'],
            new Column('id', Type::getType('integer'), ['autoincrement' => true])
        );

        // Remove comment from null-commented column.
        $tableDiff->changedColumns['comment_null'] = new ColumnDiff(
            'comment_null',
            new Column('comment_null', Type::getType('string')),
            ['type'],
            new Column('comment_null', Type::getType('integer'), ['comment' => null])
        );

        // Add comment to false-commented column.
        $tableDiff->changedColumns['comment_false'] = new ColumnDiff(
            'comment_false',
            new Column('comment_false', Type::getType('integer'), ['comment' => 'false']),
            ['comment'],
            new Column('comment_false', Type::getType('integer'), ['comment' => false])
        );

        // Change type to custom type from empty string commented column.
        $tableDiff->changedColumns['comment_empty_string'] = new ColumnDiff(
            'comment_empty_string',
            new Column('comment_empty_string', Type::getType('object')),
            ['type'],
            new Column('comment_empty_string', Type::getType('integer'), ['comment' => ''])
        );

        // Change comment to false-comment from zero-string commented column.
        $tableDiff->changedColumns['comment_string_0'] = new ColumnDiff(
            'comment_string_0',
            new Column('comment_string_0', Type::getType('integer'), ['comment' => false]),
            ['comment'],
            new Column('comment_string_0', Type::getType('integer'), ['comment' => '0'])
        );

        // Remove comment from regular commented column.
        $tableDiff->changedColumns['comment'] = new ColumnDiff(
            'comment',
            new Column('comment', Type::getType('integer')),
            ['comment'],
            new Column('comment', Type::getType('integer'), ['comment' => 'Doctrine 0wnz you!'])
        );

        // Change comment and change type to custom type from regular commented column.
        $tableDiff->changedColumns['`comment_quoted`'] = new ColumnDiff(
            '`comment_quoted`',
            new Column('`comment_quoted`', Type::getType('array'), ['comment' => 'Doctrine array.']),
            ['comment', 'type'],
            new Column('`comment_quoted`', Type::getType('integer'), ['comment' => 'Doctrine 0wnz you!'])
        );

        // Remove comment and change type to custom type from regular commented column.
        $tableDiff->changedColumns['create'] = new ColumnDiff(
            'create',
            new Column('create', Type::getType('object')),
            ['comment', 'type'],
            new Column(
                'create',
                Type::getType('integer'),
                ['comment' => 'Doctrine 0wnz comments for reserved keyword columns!']
            )
        );

        // Add comment and change custom type to regular type from non-commented column.
        $tableDiff->changedColumns['commented_type'] = new ColumnDiff(
            'commented_type',
            new Column('commented_type', Type::getType('integer'), ['comment' => 'foo']),
            ['comment', 'type'],
            new Column('commented_type', Type::getType('object'))
        );

        // Remove comment from commented custom type column.
        $tableDiff->changedColumns['commented_type_with_comment'] = new ColumnDiff(
            'commented_type_with_comment',
            new Column('commented_type_with_comment', Type::getType('array')),
            ['comment'],
            new Column('commented_type_with_comment', Type::getType('array'), ['comment' => 'Doctrine array type.'])
        );

        // Change comment from comment with string literal char column.
        $tableDiff->changedColumns['comment_with_string_literal_char'] = new ColumnDiff(
            'comment_with_string_literal_char',
            new Column('comment_with_string_literal_char', Type::getType('string'), ['comment' => "'"]),
            ['comment'],
            new Column('comment_with_string_literal_char', Type::getType('array'), ['comment' => "O'Reilly"])
        );

        $tableDiff->removedColumns['comment_integer_0']
            = new Column('comment_integer_0', Type::getType('integer'), ['comment' => 0]);

        self::assertEquals(
            [
                // Renamed columns.
                "sp_rename 'mytable.comment_float_0', 'comment_double_0', 'COLUMN'",

                // Added columns.
                'ALTER TABLE mytable ADD added_comment_none INT NOT NULL',
                'ALTER TABLE mytable ADD added_comment_null INT NOT NULL',
                'ALTER TABLE mytable ADD added_comment_false INT NOT NULL',
                'ALTER TABLE mytable ADD added_comment_empty_string INT NOT NULL',
                'ALTER TABLE mytable ADD added_comment_integer_0 INT NOT NULL',
                'ALTER TABLE mytable ADD added_comment_float_0 INT NOT NULL',
                'ALTER TABLE mytable ADD added_comment_string_0 INT NOT NULL',
                'ALTER TABLE mytable ADD added_comment INT NOT NULL',
                'ALTER TABLE mytable ADD [added_comment_quoted] INT NOT NULL',
                'ALTER TABLE mytable ADD [select] INT NOT NULL',
                'ALTER TABLE mytable ADD added_commented_type VARCHAR(MAX) NOT NULL',
                'ALTER TABLE mytable ADD added_commented_type_with_comment VARCHAR(MAX) NOT NULL',
                'ALTER TABLE mytable ADD added_comment_with_string_literal_char NVARCHAR(255) NOT NULL',
                'ALTER TABLE mytable DROP COLUMN comment_integer_0',
                'ALTER TABLE mytable ALTER COLUMN comment_null NVARCHAR(255) NOT NULL',
                'ALTER TABLE mytable ALTER COLUMN comment_empty_string VARCHAR(MAX) NOT NULL',
                'ALTER TABLE mytable ALTER COLUMN [comment_quoted] VARCHAR(MAX) NOT NULL',
                'ALTER TABLE mytable ALTER COLUMN [create] VARCHAR(MAX) NOT NULL',
                'ALTER TABLE mytable ALTER COLUMN commented_type INT NOT NULL',

                // Added columns.
                "EXEC sp_addextendedproperty N'MS_Description', N'0', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', added_comment_integer_0",
                "EXEC sp_addextendedproperty N'MS_Description', N'0', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', added_comment_float_0",
                "EXEC sp_addextendedproperty N'MS_Description', N'0', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', added_comment_string_0",
                "EXEC sp_addextendedproperty N'MS_Description', N'Doctrine', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', added_comment",
                "EXEC sp_addextendedproperty N'MS_Description', N'rulez', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', [added_comment_quoted]",
                "EXEC sp_addextendedproperty N'MS_Description', N'666', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', [select]",
                "EXEC sp_addextendedproperty N'MS_Description', N'(DC2Type:object)', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', added_commented_type",
                "EXEC sp_addextendedproperty N'MS_Description', N'666(DC2Type:array)', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', added_commented_type_with_comment",
                "EXEC sp_addextendedproperty N'MS_Description', N'''''', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', added_comment_with_string_literal_char",

                // Changed columns.
                "EXEC sp_addextendedproperty N'MS_Description', N'primary', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', id",
                "EXEC sp_addextendedproperty N'MS_Description', N'false', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment_false",
                "EXEC sp_addextendedproperty N'MS_Description', N'(DC2Type:object)', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment_empty_string",
                "EXEC sp_dropextendedproperty N'MS_Description', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment_string_0",
                "EXEC sp_dropextendedproperty N'MS_Description', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment",
                "EXEC sp_updateextendedproperty N'MS_Description', N'Doctrine array.(DC2Type:array)', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', [comment_quoted]",
                "EXEC sp_updateextendedproperty N'MS_Description', N'(DC2Type:object)', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', [create]",
                "EXEC sp_updateextendedproperty N'MS_Description', N'foo', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', commented_type",
                "EXEC sp_updateextendedproperty N'MS_Description', N'(DC2Type:array)', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', commented_type_with_comment",
                "EXEC sp_updateextendedproperty N'MS_Description', N'''', "
                    . "N'SCHEMA', 'dbo', N'TABLE', 'mytable', N'COLUMN', comment_with_string_literal_char",
            ],
            $this->platform->getAlterTableSQL($tableDiff)
        );
    }

    public function testInitializesDoctrineTypeMappings(): void
    {
        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('bigint'));
        self::assertSame('bigint', $this->platform->getDoctrineTypeMapping('bigint'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('numeric'));
        self::assertSame('decimal', $this->platform->getDoctrineTypeMapping('numeric'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('bit'));
        self::assertSame('boolean', $this->platform->getDoctrineTypeMapping('bit'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('smallint'));
        self::assertSame('smallint', $this->platform->getDoctrineTypeMapping('smallint'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('decimal'));
        self::assertSame('decimal', $this->platform->getDoctrineTypeMapping('decimal'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('smallmoney'));
        self::assertSame('integer', $this->platform->getDoctrineTypeMapping('smallmoney'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('int'));
        self::assertSame('integer', $this->platform->getDoctrineTypeMapping('int'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('tinyint'));
        self::assertSame('smallint', $this->platform->getDoctrineTypeMapping('tinyint'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('money'));
        self::assertSame('integer', $this->platform->getDoctrineTypeMapping('money'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('float'));
        self::assertSame('float', $this->platform->getDoctrineTypeMapping('float'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('real'));
        self::assertSame('float', $this->platform->getDoctrineTypeMapping('real'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('double'));
        self::assertSame('float', $this->platform->getDoctrineTypeMapping('double'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('double precision'));
        self::assertSame('float', $this->platform->getDoctrineTypeMapping('double precision'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('smalldatetime'));
        self::assertSame('datetime', $this->platform->getDoctrineTypeMapping('smalldatetime'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('datetime'));
        self::assertSame('datetime', $this->platform->getDoctrineTypeMapping('datetime'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('char'));
        self::assertSame('string', $this->platform->getDoctrineTypeMapping('char'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('varchar'));
        self::assertSame('string', $this->platform->getDoctrineTypeMapping('varchar'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('text'));
        self::assertSame('text', $this->platform->getDoctrineTypeMapping('text'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('nchar'));
        self::assertSame('string', $this->platform->getDoctrineTypeMapping('nchar'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('nvarchar'));
        self::assertSame('string', $this->platform->getDoctrineTypeMapping('nvarchar'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('ntext'));
        self::assertSame('text', $this->platform->getDoctrineTypeMapping('ntext'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('binary'));
        self::assertSame('binary', $this->platform->getDoctrineTypeMapping('binary'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('varbinary'));
        self::assertSame('binary', $this->platform->getDoctrineTypeMapping('varbinary'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('image'));
        self::assertSame('blob', $this->platform->getDoctrineTypeMapping('image'));

        self::assertTrue($this->platform->hasDoctrineTypeMappingFor('uniqueidentifier'));
        self::assertSame('guid', $this->platform->getDoctrineTypeMapping('uniqueidentifier'));
    }

    protected function getBinaryMaxLength(): int
    {
        return 8000;
    }

    public function testReturnsBinaryTypeDeclarationSQL(): void
    {
        self::assertSame('VARBINARY(255)', $this->platform->getBinaryTypeDeclarationSQL([]));
        self::assertSame('VARBINARY(255)', $this->platform->getBinaryTypeDeclarationSQL(['length' => 0]));
        self::assertSame('VARBINARY(8000)', $this->platform->getBinaryTypeDeclarationSQL(['length' => 8000]));

        self::assertSame('BINARY(255)', $this->platform->getBinaryTypeDeclarationSQL(['fixed' => true]));
        self::assertSame('BINARY(255)', $this->platform->getBinaryTypeDeclarationSQL(['fixed' => true, 'length' => 0]));
        self::assertSame('BINARY(8000)', $this->platform->getBinaryTypeDeclarationSQL([
            'fixed' => true,
            'length' => 8000,
        ]));
    }

    public function testReturnsBinaryTypeLongerThanMaxDeclarationSQL(): void
    {
        self::assertSame('VARBINARY(MAX)', $this->platform->getBinaryTypeDeclarationSQL(['length' => 8001]));
        self::assertSame('VARBINARY(MAX)', $this->platform->getBinaryTypeDeclarationSQL([
            'fixed' => true,
            'length' => 8001,
        ]));
    }

    /**
     * {@inheritDoc}
     */
    protected function getAlterTableRenameIndexSQL(): array
    {
        return ["EXEC sp_rename N'mytable.idx_foo', N'idx_bar', N'INDEX'"];
    }

    /**
     * {@inheritDoc}
     */
    protected function getQuotedAlterTableRenameIndexSQL(): array
    {
        return [
            "EXEC sp_rename N'[table].[create]', N'[select]', N'INDEX'",
            "EXEC sp_rename N'[table].[foo]', N'[bar]', N'INDEX'",
        ];
    }

    public function testChangeColumnsTypeWithDefaultValue(): void
    {
        $tableName = 'column_def_change_type';
        $table     = new Table($tableName);

        $table->addColumn('col_int', 'smallint', ['default' => 666]);
        $table->addColumn('col_string', 'string', ['default' => 'foo']);

        $tableDiff                            = new TableDiff($tableName);
        $tableDiff->fromTable                 = $table;
        $tableDiff->changedColumns['col_int'] = new ColumnDiff(
            'col_int',
            new Column('col_int', Type::getType('integer'), ['default' => 666]),
            ['type'],
            new Column('col_int', Type::getType('smallint'), ['default' => 666])
        );

        $tableDiff->changedColumns['col_string'] = new ColumnDiff(
            'col_string',
            new Column('col_string', Type::getType('string'), ['default' => 666, 'fixed' => true]),
            ['fixed'],
            new Column('col_string', Type::getType('string'), ['default' => 666])
        );

        $expected = $this->platform->getAlterTableSQL($tableDiff);

        self::assertSame(
            $expected,
            [
                'ALTER TABLE column_def_change_type DROP CONSTRAINT DF_829302E0_FA2CB292',
                'ALTER TABLE column_def_change_type ALTER COLUMN col_int INT NOT NULL',
                'ALTER TABLE column_def_change_type ADD CONSTRAINT DF_829302E0_FA2CB292 DEFAULT 666 FOR col_int',
                'ALTER TABLE column_def_change_type DROP CONSTRAINT DF_829302E0_2725A6D0',
                'ALTER TABLE column_def_change_type ALTER COLUMN col_string NCHAR(255) NOT NULL',
                "ALTER TABLE column_def_change_type ADD CONSTRAINT DF_829302E0_2725A6D0 DEFAULT '666' FOR col_string",
            ]
        );
    }

    /**
     * {@inheritdoc}
     */
    protected function getQuotedAlterTableRenameColumnSQL(): array
    {
        return [
            "sp_rename 'mytable.unquoted1', 'unquoted', 'COLUMN'",
            "sp_rename 'mytable.unquoted2', '[where]', 'COLUMN'",
            "sp_rename 'mytable.unquoted3', '[foo]', 'COLUMN'",
            "sp_rename 'mytable.[create]', 'reserved_keyword', 'COLUMN'",
            "sp_rename 'mytable.[table]', '[from]', 'COLUMN'",
            "sp_rename 'mytable.[select]', '[bar]', 'COLUMN'",
            "sp_rename 'mytable.quoted1', 'quoted', 'COLUMN'",
            "sp_rename 'mytable.quoted2', '[and]', 'COLUMN'",
            "sp_rename 'mytable.quoted3', '[baz]', 'COLUMN'",
        ];
    }

    /**
     * {@inheritdoc}
     */
    protected function getQuotedAlterTableChangeColumnLengthSQL(): array
    {
        self::markTestIncomplete('Not implemented yet');
    }

    /**
     * {@inheritDoc}
     */
    protected function getAlterTableRenameIndexInSchemaSQL(): array
    {
        return ["EXEC sp_rename N'myschema.mytable.idx_foo', N'idx_bar', N'INDEX'"];
    }

    /**
     * {@inheritDoc}
     */
    protected function getQuotedAlterTableRenameIndexInSchemaSQL(): array
    {
        return [
            "EXEC sp_rename N'[schema].[table].[create]', N'[select]', N'INDEX'",
            "EXEC sp_rename N'[schema].[table].[foo]', N'[bar]', N'INDEX'",
        ];
    }

    protected function getQuotesDropForeignKeySQL(): string
    {
        return 'ALTER TABLE [table] DROP CONSTRAINT [select]';
    }

    protected function getQuotesDropConstraintSQL(): string
    {
        return 'ALTER TABLE [table] DROP CONSTRAINT [select]';
    }

    /**
     * @param mixed[] $column
     *
     * @dataProvider getGeneratesIdentifierNamesInDefaultConstraintDeclarationSQL
     */
    public function testGeneratesIdentifierNamesInDefaultConstraintDeclarationSQL(
        string $table,
        array $column,
        string $expectedSql
    ): void {
        self::assertSame($expectedSql, $this->platform->getDefaultConstraintDeclarationSQL($table, $column));
    }

    /**
     * @return mixed[][]
     */
    public static function getGeneratesIdentifierNamesInDefaultConstraintDeclarationSQL(): iterable
    {
        return [
            // Unquoted identifiers non-reserved keywords.
            [
                'mytable',
                [
                    'name' => 'mycolumn',
                    'default' => 'foo',
                ],
                " CONSTRAINT DF_6B2BD609_9BADD926 DEFAULT 'foo' FOR mycolumn",
            ],
            // Quoted identifiers non-reserved keywords.
            [
                '`mytable`',
                [
                    'name' => '`mycolumn`',
                    'default' => 'foo',
                ],
                " CONSTRAINT DF_6B2BD609_9BADD926 DEFAULT 'foo' FOR [mycolumn]",
            ],
            // Unquoted identifiers reserved keywords.
            [
                'table',
                [
                    'name' => 'select',
                    'default' => 'foo',
                ],
                " CONSTRAINT DF_F6298F46_4BF2EAC0 DEFAULT 'foo' FOR [select]",
            ],
            // Quoted identifiers reserved keywords.
            [
                '`table`',
                [
                    'name' => '`select`',
                    'default' => 'foo',
                ],
                " CONSTRAINT DF_F6298F46_4BF2EAC0 DEFAULT 'foo' FOR [select]",
            ],
        ];
    }

    /**
     * @param string[] $expectedSql
     *
     * @dataProvider getGeneratesIdentifierNamesInCreateTableSQL
     */
    public function testGeneratesIdentifierNamesInCreateTableSQL(Table $table, array $expectedSql): void
    {
        self::assertSame($expectedSql, $this->platform->getCreateTableSQL($table));
    }

    /**
     * @return mixed[][]
     */
    public static function getGeneratesIdentifierNamesInCreateTableSQL(): iterable
    {
        return [
            // Unquoted identifiers non-reserved keywords.
            [
                new Table('mytable', [new Column('mycolumn', Type::getType('string'), ['default' => 'foo'])]),
                [
                    'CREATE TABLE mytable (mycolumn NVARCHAR(255) NOT NULL)',
                    "ALTER TABLE mytable ADD CONSTRAINT DF_6B2BD609_9BADD926 DEFAULT 'foo' FOR mycolumn",
                ],
            ],
            // Quoted identifiers reserved keywords.
            [
                new Table('`mytable`', [new Column('`mycolumn`', Type::getType('string'), ['default' => 'foo'])]),
                [
                    'CREATE TABLE [mytable] ([mycolumn] NVARCHAR(255) NOT NULL)',
                    "ALTER TABLE [mytable] ADD CONSTRAINT DF_6B2BD609_9BADD926 DEFAULT 'foo' FOR [mycolumn]",
                ],
            ],
            // Unquoted identifiers reserved keywords.
            [
                new Table('table', [new Column('select', Type::getType('string'), ['default' => 'foo'])]),
                [
                    'CREATE TABLE [table] ([select] NVARCHAR(255) NOT NULL)',
                    "ALTER TABLE [table] ADD CONSTRAINT DF_F6298F46_4BF2EAC0 DEFAULT 'foo' FOR [select]",
                ],
            ],
            // Quoted identifiers reserved keywords.
            [
                new Table('`table`', [new Column('`select`', Type::getType('string'), ['default' => 'foo'])]),
                [
                    'CREATE TABLE [table] ([select] NVARCHAR(255) NOT NULL)',
                    "ALTER TABLE [table] ADD CONSTRAINT DF_F6298F46_4BF2EAC0 DEFAULT 'foo' FOR [select]",
                ],
            ],
        ];
    }

    /**
     * @param string[] $expectedSql
     *
     * @dataProvider getGeneratesIdentifierNamesInAlterTableSQL
     */
    public function testGeneratesIdentifierNamesInAlterTableSQL(TableDiff $tableDiff, array $expectedSql): void
    {
        self::assertSame($expectedSql, $this->platform->getAlterTableSQL($tableDiff));
    }

    /**
     * @return mixed[][]
     */
    public static function getGeneratesIdentifierNamesInAlterTableSQL(): iterable
    {
        return [
            // Unquoted identifiers non-reserved keywords.
            [
                new TableDiff(
                    'mytable',
                    [new Column('addcolumn', Type::getType('string'), ['default' => 'foo'])],
                    [
                        'mycolumn' => new ColumnDiff(
                            'mycolumn',
                            new Column('mycolumn', Type::getType('string'), ['default' => 'bar']),
                            ['default'],
                            new Column('mycolumn', Type::getType('string'), ['default' => 'foo'])
                        ),
                    ],
                    [new Column('removecolumn', Type::getType('string'), ['default' => 'foo'])]
                ),
                [
                    'ALTER TABLE mytable ADD addcolumn NVARCHAR(255) NOT NULL ' .
                    "CONSTRAINT DF_6B2BD609_4AD86123 DEFAULT 'foo'",
                    'ALTER TABLE mytable DROP COLUMN removecolumn',
                    'ALTER TABLE mytable DROP CONSTRAINT DF_6B2BD609_9BADD926',
                    'ALTER TABLE mytable ALTER COLUMN mycolumn NVARCHAR(255) NOT NULL',
                    "ALTER TABLE mytable ADD CONSTRAINT DF_6B2BD609_9BADD926 DEFAULT 'bar' FOR mycolumn",
                ],
            ],
            // Quoted identifiers non-reserved keywords.
            [
                new TableDiff(
                    '`mytable`',
                    [new Column('`addcolumn`', Type::getType('string'), ['default' => 'foo'])],
                    [
                        'mycolumn' => new ColumnDiff(
                            '`mycolumn`',
                            new Column('`mycolumn`', Type::getType('string'), ['default' => 'bar']),
                            ['default'],
                            new Column('`mycolumn`', Type::getType('string'), ['default' => 'foo'])
                        ),
                    ],
                    [new Column('`removecolumn`', Type::getType('string'), ['default' => 'foo'])]
                ),
                [
                    'ALTER TABLE [mytable] ADD [addcolumn] NVARCHAR(255) NOT NULL ' .
                    "CONSTRAINT DF_6B2BD609_4AD86123 DEFAULT 'foo'",
                    'ALTER TABLE [mytable] DROP COLUMN [removecolumn]',
                    'ALTER TABLE [mytable] DROP CONSTRAINT DF_6B2BD609_9BADD926',
                    'ALTER TABLE [mytable] ALTER COLUMN [mycolumn] NVARCHAR(255) NOT NULL',
                    "ALTER TABLE [mytable] ADD CONSTRAINT DF_6B2BD609_9BADD926 DEFAULT 'bar' FOR [mycolumn]",
                ],
            ],
            // Unquoted identifiers reserved keywords.
            [
                new TableDiff(
                    'table',
                    [new Column('add', Type::getType('string'), ['default' => 'foo'])],
                    [
                        'select' => new ColumnDiff(
                            'select',
                            new Column('select', Type::getType('string'), ['default' => 'bar']),
                            ['default'],
                            new Column('select', Type::getType('string'), ['default' => 'foo'])
                        ),
                    ],
                    [new Column('drop', Type::getType('string'), ['default' => 'foo'])]
                ),
                [
                    'ALTER TABLE [table] ADD [add] NVARCHAR(255) NOT NULL ' .
                    "CONSTRAINT DF_F6298F46_FD1A73E7 DEFAULT 'foo'",
                    'ALTER TABLE [table] DROP COLUMN [drop]',
                    'ALTER TABLE [table] DROP CONSTRAINT DF_F6298F46_4BF2EAC0',
                    'ALTER TABLE [table] ALTER COLUMN [select] NVARCHAR(255) NOT NULL',
                    "ALTER TABLE [table] ADD CONSTRAINT DF_F6298F46_4BF2EAC0 DEFAULT 'bar' FOR [select]",
                ],
            ],
            // Quoted identifiers reserved keywords.
            [
                new TableDiff(
                    '`table`',
                    [new Column('`add`', Type::getType('string'), ['default' => 'foo'])],
                    [
                        'select' => new ColumnDiff(
                            '`select`',
                            new Column('`select`', Type::getType('string'), ['default' => 'bar']),
                            ['default'],
                            new Column('`select`', Type::getType('string'), ['default' => 'foo'])
                        ),
                    ],
                    [new Column('`drop`', Type::getType('string'), ['default' => 'foo'])]
                ),
                [
                    'ALTER TABLE [table] ADD [add] NVARCHAR(255) NOT NULL ' .
                    "CONSTRAINT DF_F6298F46_FD1A73E7 DEFAULT 'foo'",
                    'ALTER TABLE [table] DROP COLUMN [drop]',
                    'ALTER TABLE [table] DROP CONSTRAINT DF_F6298F46_4BF2EAC0',
                    'ALTER TABLE [table] ALTER COLUMN [select] NVARCHAR(255) NOT NULL',
                    "ALTER TABLE [table] ADD CONSTRAINT DF_F6298F46_4BF2EAC0 DEFAULT 'bar' FOR [select]",
                ],
            ],
        ];
    }

    public function testReturnsGuidTypeDeclarationSQL(): void
    {
        self::assertSame('UNIQUEIDENTIFIER', $this->platform->getGuidTypeDeclarationSQL([]));
    }

    /**
     * {@inheritdoc}
     */
    public function getAlterTableRenameColumnSQL(): array
    {
        return [
            "sp_rename 'foo.bar', 'baz', 'COLUMN'",
            'ALTER TABLE foo DROP CONSTRAINT DF_8C736521_76FF8CAA',
            'ALTER TABLE foo ADD CONSTRAINT DF_8C736521_78240498 DEFAULT 666 FOR baz',
        ];
    }

    /**
     * {@inheritdoc}
     */
    protected function getQuotesTableIdentifiersInAlterTableSQL(): array
    {
        return [
            'ALTER TABLE [foo] DROP CONSTRAINT fk1',
            'ALTER TABLE [foo] DROP CONSTRAINT fk2',
            "sp_rename '[foo].id', 'war', 'COLUMN'",
            'ALTER TABLE [foo] ADD bloo INT NOT NULL',
            'ALTER TABLE [foo] DROP COLUMN baz',
            'ALTER TABLE [foo] ALTER COLUMN bar INT',
            "sp_rename '[foo]', 'table'",
            "DECLARE @sql NVARCHAR(MAX) = N''; " .
            "SELECT @sql += N'EXEC sp_rename N''' + dc.name + ''', " .
            "N''' + REPLACE(dc.name, '8C736521', 'F6298F46') + ''', ''OBJECT'';' " .
            'FROM sys.default_constraints dc JOIN sys.tables tbl ON dc.parent_object_id = tbl.object_id ' .
            "WHERE tbl.name = 'table';EXEC sp_executesql @sql",
            'ALTER TABLE [table] ADD CONSTRAINT fk_add FOREIGN KEY (fk3) REFERENCES fk_table (id)',
            'ALTER TABLE [table] ADD CONSTRAINT fk2 FOREIGN KEY (fk2) REFERENCES fk_table2 (id)',
        ];
    }

    /**
     * {@inheritdoc}
     */
    protected function getCommentOnColumnSQL(): array
    {
        return [
            "COMMENT ON COLUMN foo.bar IS 'comment'",
            "COMMENT ON COLUMN [Foo].[BAR] IS 'comment'",
            "COMMENT ON COLUMN [select].[from] IS 'comment'",
        ];
    }

    /**
     * {@inheritdoc}
     */
    public static function getReturnsForeignKeyReferentialActionSQL(): iterable
    {
        return [
            ['CASCADE', 'CASCADE'],
            ['SET NULL', 'SET NULL'],
            ['NO ACTION', 'NO ACTION'],
            ['RESTRICT', 'NO ACTION'],
            ['SET DEFAULT', 'SET DEFAULT'],
            ['CaScAdE', 'CASCADE'],
        ];
    }

    protected function getQuotesReservedKeywordInUniqueConstraintDeclarationSQL(): string
    {
        return 'CONSTRAINT [select] UNIQUE (foo)';
    }

    protected function getQuotesReservedKeywordInIndexDeclarationSQL(): string
    {
        return 'INDEX [select] (foo)';
    }

    protected function getQuotesReservedKeywordInTruncateTableSQL(): string
    {
        return 'TRUNCATE TABLE [select]';
    }

    /**
     * {@inheritdoc}
     */
    protected function getAlterStringToFixedStringSQL(): array
    {
        return ['ALTER TABLE mytable ALTER COLUMN name NCHAR(2) NOT NULL'];
    }

    /**
     * {@inheritdoc}
     */
    protected function getGeneratesAlterTableRenameIndexUsedByForeignKeySQL(): array
    {
        return ["EXEC sp_rename N'mytable.idx_foo', N'idx_foo_renamed', N'INDEX'"];
    }

    public function testModifyLimitQueryWithTopNSubQueryWithOrderBy(): void
    {
        $query = 'SELECT * FROM test t WHERE t.id = (SELECT TOP 1 t2.id FROM test t2 ORDER BY t2.data DESC)';

        $expected = 'SELECT * FROM test t WHERE t.id = ('
            . 'SELECT TOP 1 t2.id FROM test t2 ORDER BY t2.data DESC'
            . ') ORDER BY (SELECT 0) OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY';

        self::assertEquals(
            $expected,
            $this->platform->modifyLimitQuery($query, 10)
        );

        $query = 'SELECT * FROM test t WHERE t.id = ('
            . 'SELECT TOP 1 t2.id FROM test t2 ORDER BY t2.data DESC'
            . ') ORDER BY t.data2 DESC';

        $expected = 'SELECT * FROM test t WHERE t.id = ('
            . 'SELECT TOP 1 t2.id FROM test t2 ORDER BY t2.data DESC'
            . ') ORDER BY t.data2 DESC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY';

        self::assertEquals(
            $expected,
            $this->platform->modifyLimitQuery($query, 10)
        );
    }

    public function testModifyLimitQueryWithFromSubquery(): void
    {
        $query = 'SELECT DISTINCT id_0 FROM ('
            . 'SELECT k0_.id AS id_0 FROM key_measure k0_ WHERE (k0_.id_zone in(2))'
            . ') dctrn_result';

        $expected = 'SELECT DISTINCT id_0 FROM ('
            . 'SELECT k0_.id AS id_0 FROM key_measure k0_ WHERE (k0_.id_zone in(2))'
            . ') dctrn_result ORDER BY 1 OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY';

        self::assertEquals(
            $expected,
            $this->platform->modifyLimitQuery($query, 10)
        );
    }

    public function testModifyLimitQueryWithFromSubqueryAndOrder(): void
    {
        $query = 'SELECT DISTINCT id_0, value_1 FROM ('
            . 'SELECT k0_.id AS id_0, k0_.value AS value_1 FROM key_measure k0_ WHERE (k0_.id_zone in(2))'
            . ') dctrn_result ORDER BY value_1 DESC';

        $expected = 'SELECT DISTINCT id_0, value_1 FROM ('
            . 'SELECT k0_.id AS id_0, k0_.value AS value_1 FROM key_measure k0_ WHERE (k0_.id_zone in(2))'
            . ') dctrn_result ORDER BY value_1 DESC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY';

        self::assertEquals(
            $expected,
            $this->platform->modifyLimitQuery($query, 10)
        );
    }

    public function testModifyLimitQueryWithComplexOrderByExpression(): void
    {
        $sql = $this->platform->modifyLimitQuery('SELECT * FROM table ORDER BY (table.x * table.y) DESC', 10);

        $expected = 'SELECT * FROM table ORDER BY (table.x * table.y) DESC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY';

        self::assertEquals($sql, $expected);
    }

    public function testModifyLimitQueryWithNewlineBeforeOrderBy(): void
    {
        $querySql    = "SELECT * FROM test\nORDER BY col DESC";
        $expectedSql = "SELECT * FROM test\nORDER BY col DESC OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY";
        $sql         = $this->platform->modifyLimitQuery($querySql, 10);
        self::assertEquals($expectedSql, $sql);
    }

    public function testQuotesTableNameInListTableColumnsSQL(): void
    {
        self::assertStringContainsStringIgnoringCase(
            "'Foo''Bar\\'",
            $this->platform->getListTableColumnsSQL("Foo'Bar\\")
        );
    }

    public function testQuotesSchemaNameInListTableColumnsSQL(): void
    {
        self::assertStringContainsStringIgnoringCase(
            "'Foo''Bar\\'",
            $this->platform->getListTableColumnsSQL("Foo'Bar\\.baz_table")
        );
    }

    public function testQuotesTableNameInListTableForeignKeysSQL(): void
    {
        self::assertStringContainsStringIgnoringCase(
            "'Foo''Bar\\'",
            $this->platform->getListTableForeignKeysSQL("Foo'Bar\\")
        );
    }

    public function testQuotesSchemaNameInListTableForeignKeysSQL(): void
    {
        self::assertStringContainsStringIgnoringCase(
            "'Foo''Bar\\'",
            $this->platform->getListTableForeignKeysSQL("Foo'Bar\\.baz_table")
        );
    }

    public function testQuotesTableNameInListTableIndexesSQL(): void
    {
        self::assertStringContainsStringIgnoringCase(
            "'Foo''Bar\\'",
            $this->platform->getListTableIndexesSQL("Foo'Bar\\")
        );
    }

    public function testQuotesSchemaNameInListTableIndexesSQL(): void
    {
        self::assertStringContainsStringIgnoringCase(
            "'Foo''Bar\\'",
            $this->platform->getListTableIndexesSQL("Foo'Bar\\.baz_table")
        );
    }

    public function testGetDefaultValueDeclarationSQLForDateType(): void
    {
        $currentDateSql = $this->platform->getCurrentDateSQL();
        foreach (['date', 'date_immutable'] as $type) {
            self::assertSame(
                ' DEFAULT CONVERT(date, GETDATE())',
                $this->platform->getDefaultValueDeclarationSQL([
                    'type' => Type::getType($type),
                    'default' => $currentDateSql,
                ])
            );
        }
    }

    public function testSupportsColumnCollation(): void
    {
        self::assertTrue($this->platform->supportsColumnCollation());
    }

    public function testColumnCollationDeclarationSQL(): void
    {
        self::assertSame(
            'COLLATE Latin1_General_CS_AS_KS_WS',
            $this->platform->getColumnCollationDeclarationSQL('Latin1_General_CS_AS_KS_WS')
        );
    }

    public function testGetCreateTableSQLWithColumnCollation(): void
    {
        $table = new Table('foo');
        $table->addColumn('no_collation', 'string');
        $table->addColumn('column_collation', 'string')->setPlatformOption('collation', 'Latin1_General_CS_AS_KS_WS');

        self::assertSame(
            ['CREATE TABLE foo (no_collation NVARCHAR(255) NOT NULL, '
                    . 'column_collation NVARCHAR(255) COLLATE Latin1_General_CS_AS_KS_WS NOT NULL)',
            ],
            $this->platform->getCreateTableSQL($table)
        );
    }

    public function testSupportsSequences(): void
    {
        self::assertTrue($this->platform->supportsSequences());
    }

    public function testGeneratesSequenceSqlCommands(): void
    {
        $sequence = new Sequence('myseq', 20, 1);
        self::assertEquals(
            'CREATE SEQUENCE myseq START WITH 1 INCREMENT BY 20 MINVALUE 1',
            $this->platform->getCreateSequenceSQL($sequence)
        );
        self::assertEquals(
            'ALTER SEQUENCE myseq INCREMENT BY 20',
            $this->platform->getAlterSequenceSQL($sequence)
        );
        self::assertEquals(
            'DROP SEQUENCE myseq',
            $this->platform->getDropSequenceSQL('myseq')
        );
        self::assertEquals(
            'SELECT NEXT VALUE FOR myseq',
            $this->platform->getSequenceNextValSQL('myseq')
        );
    }

    public function testAlterTableWithSchemaSameColumnComments(): void
    {
        $tableDiff                          = new TableDiff('testschema.mytable');
        $tableDiff->changedColumns['quota'] = new ColumnDiff(
            'quota',
            new Column('quota', Type::getType('integer'), ['comment' => 'A comment', 'notnull' => true]),
            ['notnull'],
            new Column('quota', Type::getType('integer'), ['comment' => 'A comment', 'notnull' => false])
        );

        $expectedSql = ['ALTER TABLE testschema.mytable ALTER COLUMN quota INT NOT NULL'];

        self::assertEquals($expectedSql, $this->platform->getAlterTableSQL($tableDiff));
    }

    /**
     * @psalm-param LockMode::* $lockMode
     *
     * @dataProvider getLockHints
     */
    public function testAppendsLockHint(int $lockMode, string $lockHint): void
    {
        $fromClause     = 'FROM users';
        $expectedResult = $fromClause . $lockHint;

        self::assertSame($expectedResult, $this->platform->appendLockHint($fromClause, $lockMode));
    }

    /**
     * @return mixed[][]
     */
    public static function getLockHints(): iterable
    {
        return [
            [LockMode::NONE, ''],
            [LockMode::OPTIMISTIC, ''],
            [LockMode::PESSIMISTIC_READ, ' WITH (HOLDLOCK, ROWLOCK)'],
            [LockMode::PESSIMISTIC_WRITE, ' WITH (UPDLOCK, ROWLOCK)'],
        ];
    }

    public function testGeneratesTypeDeclarationForDateTimeTz(): void
    {
        self::assertEquals('DATETIMEOFFSET(6)', $this->platform->getDateTimeTzTypeDeclarationSQL([]));
    }

    public function testDropIndexSQLRequiresTable(): void
    {
        $this->expectException(InvalidArgumentException::class);
        $this->platform->getDropIndexSQL('foo');
    }
}
