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[Validator] Allow empty string on LengthValidator #45993

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neufman wants to merge 1 commit into from
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[Validator] Allow empty string on LengthValidator #45993

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2 changes: 1 addition & 1 deletion src/Symfony/Component/Validator/Constraints/LengthValidator.php
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@ public function validate(mixed $value, Constraint $constraint)
throw new UnexpectedTypeException($constraint, Length::class);
}

if (null === $value) {
if (null === $value || '' === $value) {
return;
}

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15 changes: 3 additions & 12 deletions src/Symfony/Component/Validator/Tests/Constraints/LengthValidatorTest.php
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Expand Up @@ -30,20 +30,11 @@ public function testNullIsValid()
$this->assertNoViolation();
}

public function testEmptyStringIsInvalid()
public function testEmptyStringIsValid()
{
$this->validator->validate('', new Length([
'value' => $limit = 6,
'exactMessage' => 'myMessage',
]));
$this->validator->validate('', new Length(['value' => 6]));

$this->buildViolation('myMessage')
->setParameter('{{ value }}', '""')
->setParameter('{{ limit }}', $limit)
->setInvalidValue('')
->setPlural($limit)
->setCode(Length::NOT_EQUAL_LENGTH_ERROR)
->assertRaised();
$this->assertNoViolation();
}

public function testExpectsStringCompatibleType()
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3 changes: 1 addition & 2 deletions src/Symfony/Component/Validator/Tests/Validator/RecursiveValidatorTest.php
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Expand Up @@ -2202,10 +2202,9 @@ public function testAllConstraintValidateAllGroupsForNestedConstraints()

$violations = $this->validator->validate($entity, null, ['one', 'two']);

$this->assertCount(3, $violations);
$this->assertCount(2, $violations);
$this->assertInstanceOf(NotBlank::class, $violations->get(0)->getConstraint());
$this->assertInstanceOf(Length::class, $violations->get(1)->getConstraint());
$this->assertInstanceOf(Length::class, $violations->get(2)->getConstraint());
}

public function testRequiredConstraintIsIgnored()
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