Sol*_*dad 7 javascript alert qunit jsunit
我刚开始使用Qunit,想知道是否有办法捕获/验证/省略警报,例如:
function to_test() {
alert("I'm displaying an alert");
return 42;
}
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然后有类似的东西:
test("to_test", function() {
//in this case I'd like to test the alert.
alerts("I'm displaying an alert", to_test(), "to_test() should display an alert");
equals(42, to_test(), "to_test() should return 42" ); // in this case I'd like to omit the alert
});
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我对使用其他单元测试工具的建议持开放态度.
提前致谢!
mem*_*ech 10
好吧,看起来像Sinon.JS就是你要找的.我以前从未使用它,但我确实回答了你的问题.
您可以使用临时函数替换全局函数警报(实际上是window.alert),该函数将记录将显示的消息.
在javascript中很容易做到(window.alert = function(msg) { savedMsg = msg; }).所以你可以在你的测试中做到这一点.
复杂性来自于您在运行测试后进行清理.这就是你需要Sinon.JS可与QUnit整合.你需要这个集成脚本.
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<link rel="stylesheet" href="http://code.jquery.com/qunit/git/qunit.css" type="text/css" media="screen" />
<script type="text/javascript" src="http://code.jquery.com/qunit/git/qunit.js"></script>
<script type="text/javascript" src="sinon-1.1.1.js"></script>
<script type="text/javascript" src="sinon-qunit-0.8.0.js"></script>
<script>
function to_test() {
window.alert("I'm displaying an alert");
return 42;
}
$(document).ready(function(){
module("Module A");
test("first skip alert test ", function() {
var stub = this.stub(window, "alert", function(msg) { return false; } );
equals(42, to_test(), "to_test() should return 42" );
equals(1, stub.callCount, "to_test() should have invoked alert one time");
equals("I'm displaying an alert",stub.getCall(0).args[0], "to_test() should have displayed an alert" );
});
});
</script>
</head>
<body>
<h1 id="qunit-header">QUnit example</h1>
<h2 id="qunit-banner"></h2>
<div id="qunit-testrunner-toolbar"></div>
<h2 id="qunit-userAgent"></h2>
<ol id="qunit-tests"></ol>
<div id="qunit-fixture">test markup, will be hidden</div>
</body>
</html>
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