<?php

namespace Doctrine\Tests\ORM\Query;

use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Query,
    Doctrine\ORM\Query\QueryException;
use Doctrine\Tests\OrmTestCase;

class LanguageRecognitionTest extends OrmTestCase
{
    /**
     * @var EntityManagerInterface
     */
    private $_em;

    protected function setUp()
    {
        $this->_em = $this->_getTestEntityManager();
    }

    public function assertValidDQL($dql, $debug = false)
    {
        try {
            $parserResult = $this->parseDql($dql);
        } catch (QueryException $e) {
            if ($debug) {
                echo $e->getTraceAsString() . PHP_EOL;
            }

            $this->fail($e->getMessage());
        }
    }

    public function assertInvalidDQL($dql, $debug = false)
    {
        try {
            $parserResult = $this->parseDql($dql);

            $this->fail('No syntax errors were detected, when syntax errors were expected');
        } catch (QueryException $e) {
            if ($debug) {
                echo $e->getMessage() . PHP_EOL;
                echo $e->getTraceAsString() . PHP_EOL;
            }
        }
    }

    public function parseDql($dql, $hints = array())
    {
        $query = $this->_em->createQuery($dql);
        $query->setHint(Query::HINT_FORCE_PARTIAL_LOAD, true);
        $query->setDQL($dql);

        foreach ($hints as $key => $value) {
        	$query->setHint($key, $value);
        }

        $parser = new Query\Parser($query);

        // We do NOT test SQL output here. That only unnecessarily slows down the tests!
        $parser->setCustomOutputTreeWalker('Doctrine\Tests\Mocks\MockTreeWalker');

        return $parser->parse();
    }

    public function testEmptyQueryString()
    {
        $this->assertInvalidDQL('');
    }

    public function testPlainFromClauseWithAlias()
    {
        $this->assertValidDQL('SELECT u.id FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testSelectSingleComponentWithAsterisk()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    /**
     * @dataProvider invalidDQL
     */
    public function testRejectsInvalidDQL($dql)
    {
        $this->setExpectedException('\Doctrine\ORM\Query\QueryException');

        $this->_em->getConfiguration()->setEntityNamespaces(array(
            'Unknown' => 'Unknown',
            'CMS' => 'Doctrine\Tests\Models\CMS'
        ));

        $this->parseDql($dql);
    }

    public function invalidDQL()
    {
        return array(

            array('SELECT \'foo\' AS foo\bar FROM Doctrine\Tests\Models\CMS\CmsUser u'),
            /* Checks for invalid IdentificationVariables and AliasIdentificationVariables */
            array('SELECT \foo FROM Doctrine\Tests\Models\CMS\CmsUser \foo'),
            array('SELECT foo\ FROM Doctrine\Tests\Models\CMS\CmsUser foo\\'),
            array('SELECT foo\bar FROM Doctrine\Tests\Models\CMS\CmsUser foo\bar'),
            array('SELECT foo:bar FROM Doctrine\Tests\Models\CMS\CmsUser foo:bar'),
            array('SELECT foo: FROM Doctrine\Tests\Models\CMS\CmsUser foo:'),

            /* Checks for invalid AbstractSchemaName */
            array('SELECT u FROM UnknownClass u'),  // unknown
            array('SELECT u FROM Unknown\Class u'), // unknown with namespace
            array('SELECT u FROM \Unknown\Class u'), // unknown, leading backslash
            array('SELECT u FROM Unknown\\\\Class u'), // unknown, syntactically bogus (duplicate \\)
            array('SELECT u FROM Unknown\Class\ u'), // unknown, syntactically bogus (trailing \)
            array('SELECT u FROM Unknown:Class u'), // unknown, with namespace alias
            array('SELECT u FROM Unknown::Class u'), // unknown, with PAAMAYIM_NEKUDOTAYIM
            array('SELECT u FROM Unknown:Class:Name u'), // unknown, with invalid namespace alias
            array('SELECT u FROM UnknownClass: u'), // unknown, with invalid namespace alias
            array('SELECT u FROM Unknown:Class: u'), // unknown, with invalid namespace alias
            array('SELECT u FROM Doctrine\Tests\Models\CMS\\\\CmsUser u'), // syntactically bogus (duplicate \\)array('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser\ u'), // syntactically bogus (trailing \)
            array('SELECT u FROM CMS::User u'),
            array('SELECT u FROM CMS:User: u'),
            array('SELECT u FROM CMS:User:Foo u'),

            /* Checks for invalid AliasResultVariable */
            array('SELECT \'foo\' AS \foo FROM Doctrine\Tests\Models\CMS\CmsUser u'),
            array('SELECT \'foo\' AS \foo\bar FROM Doctrine\Tests\Models\CMS\CmsUser u'),
            array('SELECT \'foo\' AS foo\ FROM Doctrine\Tests\Models\CMS\CmsUser u'),
            array('SELECT \'foo\' AS foo\\\\bar FROM Doctrine\Tests\Models\CMS\CmsUser u'),
            array('SELECT \'foo\' AS foo: FROM Doctrine\Tests\Models\CMS\CmsUser u'),
            array('SELECT \'foo\' AS foo:bar FROM Doctrine\Tests\Models\CMS\CmsUser u'),
        );
    }

    public function testSelectSingleComponentWithMultipleColumns()
    {
        $this->assertValidDQL('SELECT u.name, u.username FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testSelectMultipleComponentsUsingMultipleFrom()
    {
        $this->assertValidDQL('SELECT u, p FROM Doctrine\Tests\Models\CMS\CmsUser u, Doctrine\Tests\Models\CMS\CmsPhonenumber p WHERE u = p.user');
    }

    public function testSelectMultipleComponentsWithAsterisk()
    {
        $this->assertValidDQL('SELECT u, p FROM Doctrine\Tests\Models\CMS\CmsUser u JOIN u.phonenumbers p');
    }

    public function testSelectDistinctIsSupported()
    {
        $this->assertValidDQL('SELECT DISTINCT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testAggregateFunctionInSelect()
    {
        $this->assertValidDQL('SELECT COUNT(u.id) FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testMultipleParenthesisInSelect()
    {
        $this->assertValidDQL('SELECT (((u.id))) as v FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testDuplicatedAliasInAggregateFunction()
    {
        $this->assertInvalidDQL('SELECT COUNT(u.id) AS num, SUM(u.id) AS num FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testAggregateFunctionWithDistinctInSelect()
    {
        $this->assertValidDQL('SELECT COUNT(DISTINCT u.name) FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testFunctionalExpressionsSupportedInWherePart()
    {
        $this->assertValidDQL("SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE TRIM(u.name) = 'someone'");
    }

    public function testArithmeticExpressionsSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE ((u.id + 5000) * u.id + 3) < 10000000');
    }

    public function testInExpressionSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id IN (1, 2)');
    }

    public function testInExpressionWithoutSpacesSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id IN (1,2,3)');
    }

    public function testNotInExpressionSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id NOT IN (1)');
    }

    public function testInExpressionWithSingleValuedAssociationPathExpression()
    {
        $this->assertValidDQL("SELECT u FROM Doctrine\Tests\Models\Forum\ForumUser u WHERE u.avatar IN (?1, ?2)");
    }

    public function testInvalidInExpressionWithCollectionValuedAssociationPathExpression()
    {
        $this->assertInvalidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.phonenumbers IN (?1, ?2)");
    }

    public function testInstanceOfExpressionSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\Company\CompanyPerson u WHERE u INSTANCE OF Doctrine\Tests\Models\Company\CompanyEmployee');
    }

    public function testInstanceOfExpressionWithInputParamSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\Company\CompanyPerson u WHERE u INSTANCE OF ?1');
    }

    public function testNotInstanceOfExpressionSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\Company\CompanyPerson u WHERE u NOT INSTANCE OF ?1');
    }

    public function testExistsExpressionSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE EXISTS (SELECT p.phonenumber FROM Doctrine\Tests\Models\CMS\CmsPhonenumber p WHERE p.phonenumber = 1234)');
    }

    public function testNotExistsExpressionSupportedInWherePart()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE NOT EXISTS (SELECT p.phonenumber FROM Doctrine\Tests\Models\CMS\CmsPhonenumber p WHERE p.phonenumber = 1234)');
    }

    public function testAggregateFunctionInHavingClause()
    {
        $this->assertValidDQL('SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u LEFT JOIN u.phonenumbers p HAVING COUNT(p.phonenumber) > 2');
        $this->assertValidDQL("SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u LEFT JOIN u.phonenumbers p HAVING MAX(u.name) = 'romanb'");
    }

    public function testLeftJoin()
    {
        $this->assertValidDQL('SELECT u, p FROM Doctrine\Tests\Models\CMS\CmsUser u LEFT JOIN u.phonenumbers p');
    }

    public function testJoin()
    {
        $this->assertValidDQL('SELECT u,p FROM Doctrine\Tests\Models\CMS\CmsUser u JOIN u.phonenumbers p');
    }

    public function testInnerJoin()
    {
        $this->assertValidDQL('SELECT u, p FROM Doctrine\Tests\Models\CMS\CmsUser u INNER JOIN u.phonenumbers p');
    }

    public function testMultipleLeftJoin()
    {
        $this->assertValidDQL('SELECT u, a, p FROM Doctrine\Tests\Models\CMS\CmsUser u LEFT JOIN u.articles a LEFT JOIN u.phonenumbers p');
    }

    public function testMultipleInnerJoin()
    {
        $this->assertValidDQL('SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u INNER JOIN u.articles a INNER JOIN u.phonenumbers p');
    }

    public function testMixingOfJoins()
    {
        $this->assertValidDQL('SELECT u.name, a.topic, p.phonenumber FROM Doctrine\Tests\Models\CMS\CmsUser u INNER JOIN u.articles a LEFT JOIN u.phonenumbers p');
    }

    public function testJoinClassPathUsingWITH()
    {
        $this->assertValidDQL('SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u JOIN Doctrine\Tests\Models\CMS\CmsArticle a WITH a.user = u.id');
    }

    /**
     * @group DDC-3701
     */
    public function testJoinClassPathUsingWHERE()
    {
        $this->assertValidDQL('SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u JOIN Doctrine\Tests\Models\CMS\CmsArticle a WHERE a.user = u.id');
    }

    /**
     * @group DDC-3701
     */
    public function testDDC3701WHEREIsNotWITH()
    {
        $this->assertInvalidDQL('SELECT c FROM Doctrine\Tests\Models\Company\CompanyContract c JOIN Doctrine\Tests\Models\Company\CompanyEmployee e WHERE e.id = c.salesPerson WHERE c.completed = true');
    }

    public function testOrderBySingleColumn()
    {
        $this->assertValidDQL('SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u ORDER BY u.name');
    }

    public function testOrderBySingleColumnAscending()
    {
        $this->assertValidDQL('SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u ORDER BY u.name ASC');
    }

    public function testOrderBySingleColumnDescending()
    {
        $this->assertValidDQL('SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u ORDER BY u.name DESC');
    }

    public function testOrderByMultipleColumns()
    {
        $this->assertValidDQL('SELECT u.name, u.username FROM Doctrine\Tests\Models\CMS\CmsUser u ORDER BY u.username DESC, u.name DESC');
    }

    public function testSubselectInInExpression()
    {
        $this->assertValidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id NOT IN (SELECT u2.id FROM Doctrine\Tests\Models\CMS\CmsUser u2 WHERE u2.name = 'zYne')");
    }

    public function testSubselectInSelectPart()
    {
        $this->assertValidDQL("SELECT u.name, (SELECT COUNT(p.phonenumber) FROM Doctrine\Tests\Models\CMS\CmsPhonenumber p WHERE p.phonenumber = 1234) pcount FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name = 'jon'");
    }

    public function testArithmeticExpressionInSelectPart()
    {
        $this->assertValidDQL("SELECT SUM(u.id) / COUNT(u.id) FROM Doctrine\Tests\Models\CMS\CmsUser u");
    }

    public function testArithmeticExpressionInSubselectPart()
    {
        $this->assertValidDQL("SELECT (SELECT SUM(u.id) / COUNT(u.id) FROM Doctrine\Tests\Models\CMS\CmsUser u2) value FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name = 'jon'");
    }

    public function testArithmeticExpressionWithParenthesisInSubselectPart()
    {
        $this->assertValidDQL("SELECT (SELECT (SUM(u.id) / COUNT(u.id)) FROM Doctrine\Tests\Models\CMS\CmsUser u2) value FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name = 'jon'");
    }

    /**
     * @group DDC-1079
     */
    public function testSelectLiteralInSubselect()
    {
        $this->assertValidDQL('SELECT (SELECT 1 FROM Doctrine\Tests\Models\CMS\CmsUser u2) value FROM Doctrine\Tests\Models\CMS\CmsUser u');
        $this->assertValidDQL('SELECT (SELECT 0 FROM Doctrine\Tests\Models\CMS\CmsUser u2) value FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    /**
     * @group DDC-1077
     */
    public function testConstantValueInSelect()
    {
        $this->assertValidDQL("SELECT u.name, 'foo' AS bar FROM Doctrine\Tests\Models\CMS\CmsUser u", true);
    }

    public function testDuplicateAliasInSubselectPart()
    {
        $this->assertInvalidDQL("SELECT (SELECT SUM(u.id) / COUNT(u.id) AS foo FROM Doctrine\Tests\Models\CMS\CmsUser u2) foo FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name = 'jon'");
    }

    public function testPositionalInputParameter()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id = ?1');
    }

    public function testNamedInputParameter()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id = :id');
    }

    public function testJoinConditionOverrideNotSupported()
    {
        $this->assertInvalidDQL("SELECT u.name, p FROM Doctrine\Tests\Models\CMS\CmsUser u LEFT JOIN u.phonenumbers p ON p.phonenumber = '123 123'");
    }

    public function testIndexByClauseWithOneComponent()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u INDEX BY u.id');
    }

    public function testIndexBySupportsJoins()
    {
        $this->assertValidDQL('SELECT u, a FROM Doctrine\Tests\Models\CMS\CmsUser u LEFT JOIN u.articles a INDEX BY a.id'); // INDEX BY is now referring to articles
    }

    public function testIndexBySupportsJoins2()
    {
        $this->assertValidDQL('SELECT u, p FROM Doctrine\Tests\Models\CMS\CmsUser u INDEX BY u.id LEFT JOIN u.phonenumbers p INDEX BY p.phonenumber');
    }

    public function testBetweenExpressionSupported()
    {
        $this->assertValidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name BETWEEN 'jepso' AND 'zYne'");
    }

    public function testNotBetweenExpressionSupported()
    {
        $this->assertValidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name NOT BETWEEN 'jepso' AND 'zYne'");
    }

    public function testLikeExpression()
    {
        $this->assertValidDQL("SELECT u.id FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name LIKE 'z%'");
    }

    public function testNotLikeExpression()
    {
        $this->assertValidDQL("SELECT u.id FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name NOT LIKE 'z%'");
    }

    public function testLikeExpressionWithCustomEscapeCharacter()
    {
        $this->assertValidDQL("SELECT u.id FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name LIKE 'z|%' ESCAPE '|'");
    }

    public function testFieldComparisonWithoutAlias()
    {
        $this->assertInvalidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE id = 1");
    }

    public function testDuplicatedAliasDeclaration()
    {
        $this->assertInvalidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u INNER JOIN u.articles u WHERE u.id = 1");
    }

    public function testImplicitJoinInWhereOnSingleValuedAssociationPathExpression()
    {
        // This should be allowed because avatar is a single-value association.
        // SQL: SELECT ... FROM forum_user fu INNER JOIN forum_avatar fa ON fu.avatar_id = fa.id WHERE fa.id = ?
        $this->assertValidDQL("SELECT u FROM Doctrine\Tests\Models\Forum\ForumUser u JOIN u.avatar a WHERE a.id = ?1");
    }

    public function testImplicitJoinInWhereOnCollectionValuedPathExpression()
    {
        // This should be forbidden, because articles is a collection
        $this->assertInvalidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u JOIN u.articles a WHERE a.title = ?");
    }

    public function testInvalidSyntaxIsRejected()
    {
        $this->assertInvalidDQL("FOOBAR CmsUser");
        $this->assertInvalidDQL("DELETE FROM Doctrine\Tests\Models\CMS\CmsUser.articles");
        $this->assertInvalidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u JOIN u.articles.comments");

        // Currently UNDEFINED OFFSET error
        $this->assertInvalidDQL("SELECT c FROM CmsUser.articles.comments c");
    }

    public function testUpdateWorksWithOneField()
    {
        $this->assertValidDQL("UPDATE Doctrine\Tests\Models\CMS\CmsUser u SET u.name = 'someone'");
    }

    public function testUpdateWorksWithMultipleFields()
    {
        $this->assertValidDQL("UPDATE Doctrine\Tests\Models\CMS\CmsUser u SET u.name = 'someone', u.username = 'some'");
    }

    public function testUpdateSupportsConditions()
    {
        $this->assertValidDQL("UPDATE Doctrine\Tests\Models\CMS\CmsUser u SET u.name = 'someone' WHERE u.id = 5");
    }

    public function testDeleteAll()
    {
        $this->assertValidDQL('DELETE FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testDeleteWithCondition()
    {
        $this->assertValidDQL('DELETE FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id = 3');
    }

    /**
     * The main use case for this generalized style of join is when a join condition
     * does not involve a foreign key relationship that is mapped to an entity relationship.
     */
    public function testImplicitJoinWithCartesianProductAndConditionInWhere()
    {
        $this->assertValidDQL("SELECT u, a FROM Doctrine\Tests\Models\CMS\CmsUser u, Doctrine\Tests\Models\CMS\CmsArticle a WHERE u.name = a.topic");
    }

    public function testAllExpressionWithCorrelatedSubquery()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id > ALL (SELECT u2.id FROM Doctrine\Tests\Models\CMS\CmsUser u2 WHERE u2.name = u.name)');
    }

    public function testCustomJoinsAndWithKeywordSupported()
    {
        $this->assertValidDQL('SELECT u, p FROM Doctrine\Tests\Models\CMS\CmsUser u INNER JOIN u.phonenumbers p WITH p.phonenumber = 123 WHERE u.id = 1');
    }

    public function testAnyExpressionWithCorrelatedSubquery()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id > ANY (SELECT u2.id FROM Doctrine\Tests\Models\CMS\CmsUser u2 WHERE u2.name = u.name)');
    }

    public function testSomeExpressionWithCorrelatedSubquery()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.id > SOME (SELECT u2.id FROM Doctrine\Tests\Models\CMS\CmsUser u2 WHERE u2.name = u.name)');
    }

    public function testArithmeticExpressionWithoutParenthesisInWhereClause()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE SIZE(u.phonenumbers) + 1 > 10');
    }

    public function testMemberOfExpression()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE :param MEMBER OF u.phonenumbers');
        //$this->assertValidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE 'Joe' MEMBER OF u.nicknames");
    }

    public function testSizeFunction()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE SIZE(u.phonenumbers) > 1');
    }

    public function testEmptyCollectionComparisonExpression()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.phonenumbers IS EMPTY');
    }

    public function testSingleValuedAssociationFieldInWhere()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.address = ?1');
        $this->assertValidDQL('SELECT p FROM Doctrine\Tests\Models\CMS\CmsPhonenumber p WHERE p.user = ?1');
    }

    public function testBooleanLiteralInWhere()
    {
        $this->assertValidDQL('SELECT b FROM Doctrine\Tests\Models\Generic\BooleanModel b WHERE b.booleanField = true');
    }

    public function testSubqueryInSelectExpression()
    {
        $this->assertValidDQL('select u, (select max(p.phonenumber) from Doctrine\Tests\Models\CMS\CmsPhonenumber p) maxId from Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testUsageOfQComponentOutsideSubquery()
    {
        $this->assertInvalidDQL('select u, (select max(p.phonenumber) from Doctrine\Tests\Models\CMS\CmsPhonenumber p) maxId from Doctrine\Tests\Models\CMS\CmsUser u WHERE p.user = ?1');
    }

    public function testUnknownAbstractSchemaName()
    {
        $this->assertInvalidDQL('SELECT u FROM UnknownClassName u');
    }

    public function testCorrectPartialObjectLoad()
    {
        $this->assertValidDQL('SELECT PARTIAL u.{id,name} FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testIncorrectPartialObjectLoadBecauseOfMissingIdentifier()
    {
        $this->assertInvalidDQL('SELECT PARTIAL u.{name} FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testScalarExpressionInSelect()
    {
        $this->assertValidDQL('SELECT u, 42 + u.id AS someNumber FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    public function testInputParameterInSelect()
    {
        $this->assertValidDQL('SELECT u, u.id + ?1 AS someNumber FROM Doctrine\Tests\Models\CMS\CmsUser u');
    }

    /**
     * @group DDC-1091
     */
    public function testCustomFunctionsReturningStringInStringPrimary()
    {
        $this->_em->getConfiguration()->addCustomStringFunction('CC', 'Doctrine\ORM\Query\AST\Functions\ConcatFunction');

        $this->assertValidDQL("SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE CC('%', u.name) LIKE '%foo%'", true);
    }

    /**
     * @group DDC-505
     */
    public function testDQLKeywordInJoinIsAllowed()
    {
        $this->assertValidDQL('SELECT u FROM ' . __NAMESPACE__ . '\DQLKeywordsModelUser u JOIN u.group g');
    }

    /**
     * @group DDC-505
     */
    public function testDQLKeywordInConditionIsAllowed()
    {
        $this->assertValidDQL('SELECT g FROM ' . __NAMESPACE__ . '\DQLKeywordsModelGroup g WHERE g.from=0');
    }

    /* The exception is currently thrown in the SQLWalker, not earlier.
    public function testInverseSideSingleValuedAssociationPathNotAllowed()
    {
        $this->assertInvalidDQL('SELECT u.id FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.address = ?1');
    }
    */

    /**
     * @group DDC-617
     */
    public function testSelectOnlyNonRootEntityAlias()
    {
        $this->assertInvalidDQL('SELECT g FROM Doctrine\Tests\Models\CMS\CmsUser u JOIN u.groups g');
    }

    /**
     * @group DDC-1108
     */
    public function testInputParameterSingleChar()
    {
        $this->assertValidDQL('SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u WHERE u.name = :q');
    }

    /**
     * @group DDC-1053
     */
    public function testGroupBy()
    {
        $this->assertValidDQL('SELECT g.id, count(u.id) FROM Doctrine\Tests\Models\CMS\CmsGroup g JOIN g.users u GROUP BY g.id');
    }

    /**
     * @group DDC-1053
     */
    public function testGroupByIdentificationVariable()
    {
        $this->assertValidDQL('SELECT g, count(u.id) FROM Doctrine\Tests\Models\CMS\CmsGroup g JOIN g.users u GROUP BY g');
    }

    /**
     * @group DDC-1053
     */
    public function testGroupByUnknownIdentificationVariable()
    {
        $this->assertInvalidDQL('SELECT g, count(u.id) FROM Doctrine\Tests\Models\CMS\CmsGroup g JOIN g.users u GROUP BY m');
    }

    /**
     * @group DDC-117
     */
    public function testSizeOfForeignKeyOneToManyPrimaryKeyEntity()
    {
        $this->assertValidDQL("SELECT a, t FROM Doctrine\Tests\Models\DDC117\DDC117Article a JOIN a.translations t WHERE SIZE(a.translations) > 0");
    }

    /**
     * @group DDC-117
     */
    public function testSizeOfForeignKeyManyToManyPrimaryKeyEntity()
    {
        $this->assertValidDQL("SELECT e, t FROM Doctrine\Tests\Models\DDC117\DDC117Editor e JOIN e.reviewingTranslations t WHERE SIZE(e.reviewingTranslations) > 0");
    }

    public function testCaseSupportContainingNullIfExpression()
    {
        $this->assertValidDQL("SELECT u.id, NULLIF(u.name, u.name) AS shouldBeNull FROM Doctrine\Tests\Models\CMS\CmsUser u");
    }

    public function testCaseSupportContainingCoalesceExpression()
    {
        $this->assertValidDQL("select COALESCE(NULLIF(u.name, ''), u.username) as Display FROM Doctrine\Tests\Models\CMS\CmsUser u");
    }

    /**
     * @group DDC-1858
     */
    public function testHavingSupportIsNullExpression()
    {
        $this->assertValidDQL("SELECT u.name FROM Doctrine\Tests\Models\CMS\CmsUser u HAVING u.username IS NULL");
    }
    
    /**
     * @group DDC-3085
     */
    public function testHavingSupportResultVariableInNullComparisonExpression()
    {
        $this->assertValidDQL("SELECT u AS user, SUM(a.id) AS score FROM Doctrine\Tests\Models\CMS\CmsUser u LEFT JOIN Doctrine\Tests\Models\CMS\CmsAddress a WITH a.user = u GROUP BY u HAVING score IS NOT NULL AND score >= 5");
    }

    /**
     * @group DDC-1858
     */
    public function testHavingSupportLikeExpression()
    {
        $this->assertValidDQL("SELECT _u.id, count(_articles) as uuuu FROM Doctrine\Tests\Models\CMS\CmsUser _u LEFT JOIN _u.articles _articles GROUP BY _u HAVING uuuu LIKE '3'");
    }

    /**
     * @group DDC-3018
     */
    public function testNewLiteralExpression()
    {
        $this->assertValidDQL("SELECT new " . __NAMESPACE__ . "\\DummyStruct(u.id, 'foo', 1, true) FROM Doctrine\Tests\Models\CMS\CmsUser u");
    }

    /**
     * @group DDC-3075
     */
    public function testNewLiteralWithSubselectExpression()
    {
        $this->assertValidDQL("SELECT new " . __NAMESPACE__ . "\\DummyStruct(u.id, 'foo', (SELECT 1 FROM Doctrine\Tests\Models\CMS\CmsUser su), true) FROM Doctrine\Tests\Models\CMS\CmsUser u");
    }
}

/** @Entity */
class DQLKeywordsModelUser
{
    /** @Id @Column(type="integer") @GeneratedValue */
    private $id;
    /** @OneToOne(targetEntity="DQLKeywordsModelGroup") */
    private $group;
}

/** @Entity */
class DQLKeywordsModelGroup
{
    /** @Id @Column(type="integer") @GeneratedValue */
    private $id;
    /** @Column */
    private $from;
}

class DummyStruct
{
    public function __construct($id, $arg1, $arg2, $arg3)
    {
    }
}