运行命令后，您将看到第一轮结果，如清单 6 所示。
清单 6.第一轮结果
|
Total 9 tests (Passed: 6; Fails: 3; Errors: 0) (16.00 ms)
Firefox 3.6.18 Windows: Run 3 tests (Passed: 0; Fails: 3; Errors 0) (8.00 ms)
ApplicationUtilTest.testValidateLoginFormBothEmpty failed (3.00 ms):
AssertError: Username is not validated correctly! expected "This field
is required" but was "" Error("Username is not validated correctly!
expected \"This field is required\" but was \"\"")@:0()@http://localhost
:9876/test/js-test/TestApplicationUtil.js:16
ApplicationUtilTest.testValidateLoginFormWithEmptyUserName failed (3.00 ms):
AssertError: Username is not validated correctly! expected "This field is
required" but was "" Error("Username is not validated correctly! expected
\"This field is required\" but was \"\"")@:0()@http://localhost:9876/test
/js-test/TestApplicationUtil.js:29
ApplicationUtilTest.testValidateLoginFormWithEmptyPassword failed (2.00 ms):
AssertError: Password is not validated correctly! expected "This field is
required" but was "" Error("Password is not validated correctly! expected
\"This field is required\" but was \"\"")@:0()@http://localhost:9876/test/
js-test/TestApplicationUtil.js:42
Safari 534.50 Windows: Run 3 tests (Passed: 3; Fails: 0; Errors 0) (2.00 ms)
Microsoft Internet Explorer 8.0 Windows: Run 3 tests (Passed: 3; Fails: 0;
Errors 0) (16.00 ms)
Tests failed: Tests failed. See log for details. |
注意，在清单 6 中，主要问题出在 Firefox 上。测试在 Internet Explorer 和 Safari 上均可顺利运行。
修复JavaScript代码并重新运行测试用例
我们来修复损坏的JavaScript代码。我们将使用innerHTML替代innerText。清单 7显示了修复后的ApplicationUtil对象代码。
清单 7.修复后的ApplicationUtil对象代码
|
appnamespace = {};
appnamespace.ApplicationUtil = function() {};
appnamespace.ApplicationUtil.prototype.validateLoginForm = function(){
var error = true;
document.getElementById("usernameMessage").innerHTML = "";
document.getElementById("passwordMessage").innerHTML = "";
if (!document.getElementById("username").value) {
document.getElementById("usernameMessage").innerHTML =
"This field is required";
error = false;
}
if (!document.getElementById("password").value) {
document.getElementById("passwordMessage").innerHTML =
"This field is required";
error = false;
}
return error;
}; |
使用 --test all 命令行参数重新运行测试用例对象。清单 8 显示了第二轮运行结果。
清单 8.第二轮运行结果
|
Total 9 tests (Passed: 9; Fails: 0; Errors: 0) (9.00 ms)
Firefox 3.6.18 Windows: Run 3 tests (Passed: 3; Fails: 0; Errors 0) (9.00 ms)
Safari 534.50 Windows: Run 3 tests (Passed: 3; Fails: 0; Errors 0) (5.00 ms)
Microsoft Internet Explorer 8.0 Windows: Run 3 tests (Passed: 3; Fails: 0; Errors 0)
(0.00 ms) |
如清单 8所示，JavaScript代码现在在IE、Firefox和Safari上都能正常运行。
结束语
在本文中，您了解了如何使用一个最强大的JavaScript单元测试工具（JsTestDriver）在不同的浏览器上测试JavaScript应用程序代码。还了解了什么是JsTestDriver，如何配置它，以及如何在Web应用程序中使用它来确保应用程序的JavaScript代码的质量和可靠性。
