我有一些使用promises的代码,但是在通过Mocha运行时无法运行。我已将其简化为基本要素:
process.env.NODE_ENV = 'test';
const Promise = require('bluebird');
console.log('zzzz IN');
Promise.resolve('xxx').then(function(val) {
console.log('[normal]', val);
}).catch(function(error) {
console.log('[error]', error);
})
console.log('zzzz OUT');
通过node test/index.js
运行时,我得到:
zzzz IN
zzzz OUT
[normal] xxx
但是通过摩卡:
> my-server@0.0.1 test /Users/ajmas/Development/mocha-and-promise
> eslint lib && mocha --timeout 10000
zzzz IN
zzzz OUT
0 passing (0ms)
这是Mocha中的问题还是我配置的方式?
的package.json:
{
"name": "my-server",
"version": "0.0.1",
"description": "Mocha and Promises test case",
"main": "lib/main.js",
"scripts": {
"start-dev": "NODE_ENV=dev node test/index.js",
"start-dev-debug": "DEBUG=express:* npm run start-dev",
"start": "node lib/main.js",
"test": "eslint lib && mocha --timeout 10000"
},
"engines": {
"node": ">=6.7.0"
},
"dependencies": {
"bluebird": "^3.4.6"
},
"devDependencies": {
"chai": "^3.5.0",
"chai-http": "^3.0.0",
"eslint": "^3.8.1",
"eslint-config-standard": "^6.2.1",
"eslint-plugin-promise": "^3.3.0",
"eslint-plugin-standard": "^2.0.1",
"mocha": "^3.2.0"
}
}
在MacOS X 10.12.2上使用节点6.7.0运行。还试过了' bluebird',' promise'和本机的Promise,但每个都有相同的行为。
顺便说一句,这段代码是我整合测试的应用程序的一部分,但由于没有完成承诺,我无法在Mocha中启动服务器。
答案 0 :(得分:0)
原来它可行,但你需要把代码放在'它'函数调用,这样:
it('Run the promise, function(done) {
Promise.resolve('xxx').then(function(val) {
console.log('[normal]', val);
}).catch(function(error) {
console.log('[error]', error);
})
})