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我真的很困惑,我看到的行为。我的间谍一直误报论据。如果我使用相同的签名和参数创建相同的函数并分别监视它,则复制工作正常。我不能弄清楚发生了什么事!Sinon间谍失败与一个功能的坏参数,但成功为另一个相同的
所以,这里是代码:
NB:alert
是原始功能,test
是新的我创建检查发生了什么事情。
# index.js
class Alerter {
getOnErrorFn(name) {
return (error) => {
...
alert = {
opts: {
tags: 'Unknown Error'
}
}
...
if (alert) {
this.test(name, error.message, Object.assign({}, alert.opts, {smc_error: error.toLog()}), alert.level);
this.alert(name, error.message, Object.assign({}, alert.opts, {smc_error: error.toLog()}), alert.level); }
};
}
test(serviceName, message, opts={}, level=this.CRITICAL) {
console.log(serviceName, message, opts, level);
}
alert(serviceName, message, opts={}, level=this.CRITICAL) {
console.log(serviceName, message, opts, level);
...
}
这里是我的测试代码(所有其他测试被注释掉了,这是在测试套件的唯一文件);
# alerter.spec.js
const sandbox = sinon.sandbox.create();
describe('Alerter', function(){
let alerter;
let name = 'test-service';
let message = 'test message';
beforeEach(() => {
alerter = new Alerter(name);
});
afterEach(() => {
sandbox.restore();
});
describe('getOnErrorFn()',() => {
it.only('handles non-SMCError errors and assumes they should be alerted',() => {
const spy = sandbox.spy(alerter, 'test');
const spi = sandbox.spy(alerter, 'alert');
const onError = alerter.getOnErrorFn(name);
const error = new Error();
const smcError = SMCError.from(error);
onError(error);
expect(spy).to.have.been.calledWith(name, smcError.message, {smc_error: smcError.toLog(), tags: 'Unknown Error'}, undefined);
expect(spi).to.have.been.calledWith(name, smcError.message, {smc_error: smcError.toLog(), tags: 'Unknown Error'}, undefined);
});
});
});
这里是测试运行的结果....这是我的绝对坚果!
$ npm test
> [email protected] test /Users/al/Studio/Projects/smc/app/smc-alerting
> mocha test/**/*.spec.js
Alerter
getOnErrorFn()
TEST test-service Caught Error { tags: 'Unknown Error',
smc_error: 'Error Caught Error\n caused by: Caught Error' } critical
ALERT test-service Caught Error { tags: 'Unknown Error',
smc_error: 'Error Caught Error\n caused by: Caught Error' } critical
1) handles non-SMCError errors and assumes they should be alerted
0 passing (34ms)
1 failing
1) Alerter getOnErrorFn() handles non-SMCError errors and assumes they should be alerted:
expected alert to have been called with arguments test-service, Caught Error, {
smc_error: "Error Caught Error
caused by: Caught Error",
tags: "Unknown Error"
}, undefined
alert(test-service, Caught Error, { smc_error: "Error Caught Error
caused by: Caught Error" }, undefined) at /Users/al/Studio/Projects/smc/app/smc-alerting/src/index.js:46:14
AssertionError: expected alert to have been called with arguments test-service, Caught Error, {
smc_error: "Error Caught Error
caused by: Caught Error",
tags: "Unknown Error"
}, undefined
alert(test-service, Caught Error, { smc_error: "Error Caught Error
caused by: Caught Error" }, undefined) at src/index.js:46:14
at Context.it.only (test/index.spec.js:173:32)
npm ERR! Test failed. See above for more details.
所以,注意,这两个console.log
报表打印相同结果。但是,alert
函数的间谍会失败,并显示一个打印输出,指示使用第三个参数中缺少的tags
属性调用该函数。 WTF!
还是有什么我不知道在这里发生?
所有帮助非常感谢。提前致谢!