minor #26165 do not mock the container builder in tests (xabbuh)

This PR was merged into the 3.4 branch.

Discussion
----------

do not mock the container builder in tests

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
-------

777acfb do not mock the container builder in tests

Author: nicolas-grekas

Tests/ContainerConstraintValidatorFactoryTest.php

@@ -13,7 +13,6 @@
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\DependencyInjection\Container;
-use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\Constraints\Blank as BlankConstraint;
 use Symfony\Component\Validator\ConstraintValidator;
@@ -23,16 +22,8 @@ class ContainerConstraintValidatorFactoryTest extends TestCase
 {
     public function testGetInstanceCreatesValidator()
     {
-        $class = get_class($this->getMockForAbstractClass(ConstraintValidator::class));
-
-        $constraint = $this->getMockBuilder(Constraint::class)->getMock();
-        $constraint
-            ->expects($this->once())
-            ->method('validatedBy')
-            ->will($this->returnValue($class));
-
         $factory = new ContainerConstraintValidatorFactory(new Container());
-        $this->assertInstanceOf($class, $factory->getInstance($constraint));
+        $this->assertInstanceOf(DummyConstraintValidator::class, $factory->getInstance(new DummyConstraint()));
     }
 
     public function testGetInstanceReturnsExistingValidator()
@@ -45,30 +36,13 @@ public function testGetInstanceReturnsExistingValidator()
 
     public function testGetInstanceReturnsService()
     {
-        $service = 'validator_constraint_service';
-        $validator = $this->getMockForAbstractClass(ConstraintValidator::class);
-
-        // mock ContainerBuilder b/c it implements TaggedContainerInterface
-        $container = $this->getMockBuilder(ContainerBuilder::class)->setMethods(array('get', 'has'))->getMock();
-        $container
-            ->expects($this->once())
-            ->method('get')
-            ->with($service)
-            ->willReturn($validator);
-        $container
-            ->expects($this->once())
-            ->method('has')
-            ->with($service)
-            ->willReturn(true);
-
-        $constraint = $this->getMockBuilder(Constraint::class)->getMock();
-        $constraint
-            ->expects($this->once())
-            ->method('validatedBy')
-            ->will($this->returnValue($service));
+        $validator = new DummyConstraintValidator();
+        $container = new Container();
+        $container->set(DummyConstraintValidator::class, $validator);
 
         $factory = new ContainerConstraintValidatorFactory($container);
-        $this->assertSame($validator, $factory->getInstance($constraint));
+
+        $this->assertSame($validator, $factory->getInstance(new DummyConstraint()));
     }
 
     /**
@@ -86,3 +60,18 @@ public function testGetInstanceInvalidValidatorClass()
         $factory->getInstance($constraint);
     }
 }
+
+class DummyConstraint extends Constraint
+{
+    public function validatedBy()
+    {
+        return DummyConstraintValidator::class;
+    }
+}
+
+class DummyConstraintValidator extends ConstraintValidator
+{
+    public function validate($value, Constraint $constraint)
+    {
+    }
+}

Tests/DependencyInjection/AddConstraintValidatorsPassTest.php

@@ -50,7 +50,7 @@ public function testThatConstraintValidatorServicesAreProcessed()
     public function testAbstractConstraintValidator()
     {
         $container = new ContainerBuilder();
-        $validatorFactory = $container->register('validator.validator_factory')
+        $container->register('validator.validator_factory')
             ->addArgument(array());
 
         $container->register('my_abstract_constraint_validator')
@@ -63,18 +63,16 @@ public function testAbstractConstraintValidator()
 
     public function testThatCompilerPassIsIgnoredIfThereIsNoConstraintValidatorFactoryDefinition()
     {
-        $definition = $this->getMockBuilder('Symfony\Component\DependencyInjection\Definition')->getMock();
-        $container = $this->getMockBuilder('Symfony\Component\DependencyInjection\ContainerBuilder')->setMethods(array('hasDefinition', 'findTaggedServiceIds', 'getDefinition'))->getMock();
+        $container = new ContainerBuilder();
 
-        $container->expects($this->never())->method('findTaggedServiceIds');
-        $container->expects($this->never())->method('getDefinition');
-        $container->expects($this->atLeastOnce())
-            ->method('hasDefinition')
-            ->with('validator.validator_factory')
-            ->will($this->returnValue(false));
-        $definition->expects($this->never())->method('replaceArgument');
+        $definitionsBefore = count($container->getDefinitions());
+        $aliasesBefore = count($container->getAliases());
 
         $addConstraintValidatorsPass = new AddConstraintValidatorsPass();
         $addConstraintValidatorsPass->process($container);
+
+        // the container is untouched (i.e. no new definitions or aliases)
+        $this->assertCount($definitionsBefore, $container->getDefinitions());
+        $this->assertCount($aliasesBefore, $container->getAliases());
     }
 }