GraphQL\Tests\Validator\NoUnusedVariablesTest::testUsesAllVariablesDeeply PHP Method

    public function testUsesAllVariablesDeeply()
    {
        $this->expectPassesRule(new NoUnusedVariables(), '
      query Foo($a: String, $b: String, $c: String) {
        field(a: $a) {
          field(b: $b) {
            field(c: $c)
          }
        }
      }
        ');
    }