async 函数的 jasmine expectedAsync 不起作用

Question

我正在运行进行以下测试：

it("should get rejected", async done => {
      class someTest {
        async run(){
          return this.rejectFunc();
        }
        async rejectFunc(){
          return new Promise( (_,reject)=>{
            setTimeout(()=>{
              reject()
            },300)
          })
        }
      }

      const test = new someTest();
      spyOn(test, 'rejectFunc').and.callThrough();
      test.run()      
      await expectAsync(test.rejectFunc).toBeRejected();  
      done();
    });

但是测试超时失败：

Error: Timeout - Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL.

我做错了什么？我想运行 run 方法并验证 rejectFunc 是否被拒绝。

Answer 1

这是我第一次看到 expectAsync 但它期望接受一个承诺而不是函数的名称。

所以试试这个：

// call the function with ()
await expectAsync(test.rejectFunc()).toBeRejected();

另一种测试方法是：

try {
  await test.rejectFunc();
} catch (error) {
  // call done here, meaning promise was rejected and therefore we can assert
  // it was rejected
  done();
}

编辑

const test = new someTest();
spyOn(test, 'rejectFunc').and.callThrough();
try {
  await test.run();
} catch (e) {
  expect(test.rejectFunc).toHaveBeenCalled();
}
    
done();

async 函数的 jasmine expectedAsync 不起作用

jasmine expectedAsync for async function doesn't work

javascript

unit-testing

jasmine