[5.7] Add Unit test for Auth/Access/Gate.php:define when InvalidArg…

…umentException caused; (#25564)

- added unit test for `Auth/Access/Gate.php:define` when InvalidArgumentException caused, since we did not have a test for this case;

tests/Auth/AuthAccessGateTest.php

@@ -453,6 +453,30 @@ public function test_for_user_method_attaches_a_new_user_to_a_new_gate_instance(
         $this->assertTrue($gate->forUser((object) ['id' => 2])->check('foo'));
     }
 
+    /**
+     * @dataProvider notCallableDataProvider
+     * @expectedException \InvalidArgumentException
+     */
+    public function test_define_second_parametter_should_be_string_or_callable($callback)
+    {
+        $gate = $this->getBasicGate();
+
+        $gate->define('foo', $callback);
+    }
+
+    /**
+     * @return array
+     */
+    public function notCallableDataProvider()
+    {
+        return [
+            [1],
+            [new \stdClass()],
+            [[]],
+            [1.1],
+        ];
+    }
+
     /**
      * @expectedException \Illuminate\Auth\Access\AuthorizationException
      * @expectedExceptionMessage You are not an admin.