minor #10558 [DependencyInjection] added missing unit test (fabpot)

This PR was merged into the 2.3 branch.

Discussion
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[DependencyInjection] added missing unit test

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

Added a unit test to ensure that #10536 won't break BC.

Commits
-------

47d1592 added missing unit test

src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php

@@ -21,6 +21,7 @@ use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+use Symfony\Component\DependencyInjection\Exception\InactiveScopeException;
 use Symfony\Component\DependencyInjection\Loader\ClosureLoader;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
@@ -151,6 +152,16 @@ class ContainerBuilderTest extends \PHPUnit_Framework_TestCase
         $this->assertNull($builder->get('foo', ContainerInterface::NULL_ON_INVALID_REFERENCE));
     }
 
+    /**
+     * @covers Symfony\Component\DependencyInjection\ContainerBuilder::get
+     */
+    public function testGetReturnsNullOnInactiveScopeWhenServiceIsCreatedByAMethod()
+    {
+        $builder = new ProjectContainer();
+
+        $this->assertNull($builder->get('foobaz', ContainerInterface::NULL_ON_INVALID_REFERENCE));
+    }
+
     /**
      * @covers Symfony\Component\DependencyInjection\ContainerBuilder::getServiceIds
      */
@@ -805,8 +816,16 @@ class ContainerBuilderTest extends \PHPUnit_Framework_TestCase
             }
         }
 
-        $this->assertEquals(true, $classInList);
+        $this->assertTrue($classInList);
     }
 }
 
 class FooClass {}
+
+class ProjectContainer extends ContainerBuilder
+{
+    public function getFoobazService()
+    {
+        throw new InactiveScopeException('foo', 'request');
+    }
+}