public function testVariableNotDefined() { $this->expectFailsRule(new NoUndefinedVariables(), ' query Foo($a: String, $b: String, $c: String) { field(a: $a, b: $b, c: $c, d: $d) } ', [$this->undefVar('d', 3, 39, 'Foo', 2, 7)]); }