Add test case for #322

Author: sebastianbergmann

tests/GeneratorTest.php

@@ -190,4 +190,18 @@ public function testCanImplementInterfacesThatHaveMethodsWithReturnTypes()
     {
         $this->generator->getMock([AnInterfaceWithReturnType::class, AnInterface::class]);
     }
+
+    /**
+     * @covers PHPUnit_Framework_MockObject_Generator::getMock
+     *
+     * @ticket https://github.com/sebastianbergmann/phpunit-mock-objects/issues/322
+     */
+    public function testCanConfigureMethodsForDoubleOfNonExistantClass()
+    {
+        $className = md5(microtime());
+
+        $mock = $this->generator->getMock($className, ['someMethod']);
+
+        $this->assertInstanceOf($className, $mock);
+    }
 }