Flutter 测试失败，单元测试预期和实际状态对象相同但仍然失败

Question

我有一个这样的代码测试，预期和实际已经有相同的对象，但是单元测试仍然失败，怎么办？

 blocTest("_mapClickEmailToState",
        wait: const Duration(milliseconds: 500),
        build: () {
          return bloc;
        },
        act: (bloc) => bloc.add(ClickEmail()),
        expect: () => [
              ClickEmailSuccess()
        ]);
  });

我有这个错误

Expected: [Instance of 'ClickEmailSuccess'] Actual: [Instance of 'ClickEmailSuccess'] Which: at location [0] is <Instance of 'ClickEmailSuccess'> instead of <Instance of 'ClickEmailSuccess'>

Answer 1

您必须覆盖 == 运算符和 hashCode 或为此实现 Equatable class。

为了覆盖它们，让我们假设 class 具有属性名称和年龄的人，它看起来像这样：

class Person {
  const Person(this.name, this.age);

  final String name;
  final int age

  @override
  bool operator ==(Object other) =>
    identical(this, other) ||
    other is Person &&
    runtimeType == other.runtimeType &&
    name == other.name &&
    age == other.age;

  @override
  int get hashCode => name.hashCode ^ age.hashCode;
}

Flutter 测试失败，单元测试预期和实际状态对象相同但仍然失败

Flutter test failure, unit test expected and actual state object are the same but still fail

unit-testing

flutter

bloc