minor #13331 [OptionsResolver] added test for allowed values and type…

…s that default to null (Tobion)

This PR was merged into the 2.6 branch.

Discussion
----------

[OptionsResolver] added test for allowed values and types that default to null

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

Added test to keep logic as experienced in #12809

Commits
-------

0b42cad [OptionsResolver] added test for allowed values and types that default to null

src/Symfony/Component/OptionsResolver/Tests/OptionsResolver2Dot6Test.php

@@ -504,7 +504,19 @@ public function testFailIfSetAllowedTypesFromLazyOption()
      */
     public function testResolveFailsIfInvalidType()
     {
-        $this->resolver->setDefault('foo', 42);
+        $this->resolver->setDefined('foo');
+        $this->resolver->setAllowedTypes('foo', 'string');
+
+        $this->resolver->resolve(array('foo' => 42));
+    }
+
+    /**
+     * @expectedException \Symfony\Component\OptionsResolver\Exception\InvalidOptionsException
+     * @expectedExceptionMessage The option "foo" with value null is expected to be of type "string", but is of type "NULL".
+     */
+    public function testResolveFailsIfInvalidTypeIsNull()
+    {
+        $this->resolver->setDefault('foo', null);
         $this->resolver->setAllowedTypes('foo', 'string');
 
         $this->resolver->resolve();
@@ -675,7 +687,19 @@ public function testFailIfSetAllowedValuesFromLazyOption()
      */
     public function testResolveFailsIfInvalidValue()
     {
-        $this->resolver->setDefault('foo', 42);
+        $this->resolver->setDefined('foo');
+        $this->resolver->setAllowedValues('foo', 'bar');
+
+        $this->resolver->resolve(array('foo' => 42));
+    }
+
+    /**
+     * @expectedException \Symfony\Component\OptionsResolver\Exception\InvalidOptionsException
+     * @expectedExceptionMessage The option "foo" with value null is invalid. Accepted values are: "bar".
+     */
+    public function testResolveFailsIfInvalidValueIsNull()
+    {
+        $this->resolver->setDefault('foo', null);
         $this->resolver->setAllowedValues('foo', 'bar');
 
         $this->resolver->resolve();