我有一个简单的异步mocha测试,但似乎永远不会调用done()
回调。
describe("RiBot", function() {
it("should start with a random topic", async (done) => {
await RiBot.init();
let topic = RiBot.getTopic("testuser")
assert.equal(topic, "FAILHERE");
done()
})
})
在这种情况下,断言应该失败,但我只是暂停。
RiBot
RibotTest topic +0ms undefined
1) should start with a random topic
0 passing (2s)
1 failing
1) RiBot should start with a random topic:
Error: timeout of 2000ms exceeded. Ensure the done() callback is being called in this test.
编辑:当我使用断言:
作为标准JS代码运行时async function testRiBot() {
try {
await RiBot.init()
let topic = RiBot.getTopic("testuser")
debug('topic', topic)
assert.equal(topic, "FAILHERE", 'fail match on topic');
} catch(err) {
debug("err", err, err.stack)
}
}
我确实因错误而抛出异常。
RibotTest err +2ms { [AssertionError: fail match on topic]
name: 'AssertionError',
actual: 'undefined',
expected: 'FAILHERE',
operator: '==',
message: 'fail match on topic',
generatedMessage: false } AssertionError: fail match on topic
at /Users/dc/dev/rikai/boteditor/test/RiBot_test.js:19:20
at next (native)
at fulfilled (/Users/dc/dev/rikai/boteditor/test/RiBot_test.js:4:58)
at process._tickCallback (node.js:412:9)
有人可以使用打字稿async / await和mocha提供一个简单的例子吗?
答案 0 :(得分:8)
尝试像这样定义你的测试......(同时删除完成调用)
it('should start with a random topic', async function () {
// ...
});
请注意,如果您的测试返回Promise,那么mocha框架将查找要解析或拒绝的Promise而不是完成回调。注意异步函数总是返回一个Promise。
最佳做法是避免使用箭头功能来定义测试,否则您无法从测试中访问正确的this
上下文(即您无法执行调用等操作测试代码中的this.title
。
答案 1 :(得分:0)
const mochaAsync = (fn: any) => {
return (done: any) => {
fn.call()
.then(done, (err: Error) => { done(err); });
};
};
摩卡> = 3.0.0
{{1}}