Chai-As-Promised 即使错误也会通过

Question

const chaiAsPromised = require('chai-as-promised');
const chai = require('chai');
const expect = chai.expect;
chai.use(chaiAsPromised);

describe('[sample unit]', function() {
  it('should pass functionToTest with true input', function() {   
    expect(Promise.resolve({ foo: "bar" })).to.eventually.have.property("meh");
  });
});

这个测试通过了？？？我正在使用 "chai": "3.5.0", "chai-as-promised": "5.2.0",

Answer 1

expect(...) returnpromise 本身，将根据测试解决或拒绝。

要让 Mocha 测试该 promise 的结果，您需要从测试用例中显式 return 它（这是有效的，因为 Mocha 具有内置的 promise 支持）：

describe('[sample unit]', function() {
  it('should pass functionToTest with true input', function() {   
    return expect(Promise.resolve({ foo: "bar" })).to.eventually.have.property("meh");
  });
});

或者，您可以使用 Mocha 的 "regular" 回调式异步设置和 chai-as-promised 的 .notify():

describe('[sample unit]', function() {
  it('should pass functionToTest with true input', function(done) {   
    expect(Promise.resolve({ foo: "bar" })).to.eventually.have.property("meh").notify(done);
  });
});

Chai-As-Promised 即使错误也会通过

Chai-As-Promised passes even when it is wrong

javascript

mocha.js

chai

chai-as-promised