如何在JPM测试中断言

Question

我的合成测试：

exports.testAssertObject = function(assert) {
    console.log(arguments);
    assert.ok(assert, "Assert object exists");
};

在带有TypeError: assert.ok is not a function:的JPM中失败

$jpm --version
0.0.29
$jpm test
JPM undefined Starting jpm test on Reuse Tab
Creating XPI
JPM undefined XPI created at [e-mail] (327ms)
Created XPI at [e-mail]
JPM undefined Creating a new profile
Running tests on Firefox 38.0a2/Gecko 38.0a2 ({ec8030f7-c20a-464f-9b0e-13a3a9e97384}) under winnt/x86.
console.log: reusetab: {"0":{"console":{},"passed":0,"failed":0,"testRunSummary":[],"expectFailNesting":0,"test":{"name":"./test/test-utils.testAssertObject","passed":0,"failed":0,"errors":{},"last":"START"},"isDone":false,"waitTimeout":null}}
console.error: reusetab: 
JPM undefined   Message: ReferenceError: assert is not defined
  Stack:
    exports.testAssertObject@resource://gre/modules/commonjs/toolkit/loader.js -> resource://jid1-k8e1vrohvmoxwq-at-jetpack/test/test-utils.js:3:2
start@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/deprecated/unit-test.js:559:7
startMany/runNextTest/<@resource://gre/modules/commonjs/toolkit/loader.js -> resource://gre/modules/commonjs/sdk/deprecated/unit-test.js:522:11
Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:867:23
this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:746:7
this.PromiseWalker.scheduleWalkerLoop/<@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:688:37

0 of 1 tests passed.
There were test failures...

我认为，与cfx不同，jpm不会将assert对象作为测试方法参数传递？

如何在异步测试中实现断言并通知"完成"？

Answer 1

JPM（像cfx一样）默认情况下不使用assert方法运行测试，而是使用旧版本的测试工具进行摩擦。使用当前测试线束所需要做的就是添加

require("sdk/test").run(exports);

到您的trsts文件，如您链接的单元测试页面上所记录的。

Answer 2

要获得断言方法的更新列表，请阅读

resource://gre/modules/commonjs/sdk/deprecated/unit-test.js

测试方法的第一个参数是在该资源中实现的TestRuner对象，它有一个不同的接口：

特别是：

• ok()方法替换为assert()
• throws()替换为assertRaises(func, predicate, message)（不同签名）
• equal()替换为assertEqual()，许多其他方法也以"assert"为前缀
• done()方法现在也属于TestRunner（测试方法没有第二个参数），可以在TestRunner上声明方法异步调用waitUntilDone(timeoutInMs)