LanguageFeatures/Subtyping/dynamic/generated/left_FutureOr_fail_local_variable_fail_A01_t01.dart

/*
 * Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion We say that a type T0 is a subtype of a type T1 (written T0 <: T1)
 * when:
 * Left FutureOr: T0 is FutureOr<S0>
 *   and Future<S0> <: T1
 *   and S0 <: T1
 * @description Check that if a type T0 is FutureOr<S0> and Future<S0> is a
 * subtype of T1 but S0 is not a subtype of a type T1, then a type T0 is not a
 * subtype of a type T1.
 * @author ngl@unipro.ru
 */
/**
 * @description Check that if type T0 is not a subtype of a type T1, then
 * instance of T0 cannot be be assigned to the to local variable of type T1
 * @author sgrekhov@unipro.ru
 */
/*
 * This test is generated from left_FutureOr_fail_A01.dart and 
 * local_variable_fail_x01.dart.
 * Don't modify it. If you want to change this file, change one of the files 
 * above and then run generator.dart to regenerate the tests.
 */


import '../../utils/common.dart';
import '../../../../Utils/expect.dart';

import "dart:async";

class S0 {}

FutureOr<S0> t0Instance = new S0();
Future<S0> t1Instance = new Future<S0>.value(new S0()); // S0 is not a subtype of T1 (T1 is Future<S0>)




class LocalVariableTest {

  LocalVariableTest() {
    Future<S0> t1 = null;
    t1 = forgetType(t0Instance);
  }

  LocalVariableTest.valid() {}

  static staticTest() {
    Future<S0> t1 = null;
    t1 = forgetType(t0Instance);
  }

  test() {
    Future<S0> t1 = null;
    t1 = forgetType(t0Instance);
  }
}

main() {
  bar () {
    Future<S0> t1 = null;
    t1 = forgetType(t0Instance);
  }

  Expect.throws(() {
    Future<S0> t1 = null;
    t1 = forgetType(t0Instance);
  }, (e) => e is TypeError);

  Expect.throws(() {
    bar();
  }, (e) => e is TypeError);

  Expect.throws(() {
    new LocalVariableTest();
  }, (e) => e is TypeError);

  Expect.throws(() {
    new LocalVariableTest.valid().test();
  }, (e) => e is TypeError);

  Expect.throws(() {
    LocalVariableTest.staticTest();
  }, (e) => e is TypeError);
}