Adding failing test for nullable fields returning a Porpaginas Result

Author: moufmouf

tests/Fixtures/Integration/Controllers/ContactController.php

@@ -5,6 +5,7 @@
 
 
 use Porpaginas\Arrays\ArrayResult;
+use Porpaginas\Result;
 use TheCodingMachine\GraphQLite\Annotations\Mutation;
 use TheCodingMachine\GraphQLite\Annotations\Query;
 use TheCodingMachine\GraphQLite\Annotations\Security;
@@ -78,4 +79,15 @@ public function getOtherContact(): Contact
     {
         return new Contact('Joe');
     }
+
+    /**
+     * Test that we can have nullable results from Porpaginas.
+     *
+     * @Query()
+     * @return Result|Contact[]|null
+     */
+    public function getNullableResult(): ?Result
+    {
+        return null;
+    }
 }

tests/Integration/EndToEndTest.php

@@ -1545,4 +1545,30 @@ public function testInputOutputNameConflict(): void
 
         $schema->validate();
     }
+
+    public function testNullableResult(){
+        /**
+         * @var Schema $schema
+         */
+        $schema = $this->mainContainer->get(Schema::class);
+
+        $queryString = '
+        query {
+            nullableResult {
+                count
+            }
+        }
+        ';
+
+        $result = GraphQL::executeQuery(
+            $schema,
+            $queryString
+        );
+        $resultArray = $result->toArray(Debug::RETHROW_UNSAFE_EXCEPTIONS);
+        if (isset($resultArray['errors']) || !isset($resultArray['data'])) {
+            $this->fail('Expected a successful answer. Got '.json_encode($resultArray, JSON_PRETTY_PRINT));
+        }
+        $this->assertNull($resultArray['data']['getNullableResult']);
+    }
+
 }