[英]Karma/Istanbul Code Coverage does not find functions and always returns 100%
I am attempting to add Code Coverage for my Karma tests, however although it finds the correct JS files that I'm testing, it does not find the functions inside those files. 我正在尝试为我的Karma测试添加代码覆盖率,但是虽然它找到了我正在测试的正确的JS文件,但它找不到这些文件中的函数。
From what I have read so far I believe it to be to do with the files not being correctly browserified before being passed to istanbul to do the coverage, but admittedly I am new to this so I'm hoping for some suggestions. 从我到目前为止所读到的内容来看,我认为在传递给伊斯坦布尔进行报道之前,文件没有被正确浏览,但不可否认我是新手,所以我希望能提出一些建议。
Here is my JS file(common.js): 这是我的JS文件(common.js):
var applicationSettings = require('./settings');
var common = {
getAjaxBaseUrl: function () {
var strVirtualDirectory = applicationSettings.VirtualDirectory;
if (strVirtualDirectory.length > 1) {
if (!strVirtualDirectory.startsWith("/")) {
strVirtualDirectory = "/" + strVirtualDirectory;
}
}
return strVirtualDirectory;
}
}
module.exports = common;
And here are the tests I have written: 这是我写的测试:
it('Client - Should get correct AjaxBaseUrl with /', function () {
var clientSettings = require('./../client/scripts/settings');
var clientCommon = require('./../client/scripts/common');
clientSettings.VirtualDirectory = '/VD';
expect(clientCommon.getAjaxBaseUrl()).to.equal('/VD');
});
it('Client - Should get correct AjaxBaseUrl without /', function () {
var clientSettings = require('./../client/scripts/settings');
var clientCommon = require('./../client/scripts/common');
clientSettings.VirtualDirectory = 'VD';
expect(clientCommon.getAjaxBaseUrl()).to.equal('/VD');
});
My Karma.conf is below: 我的Karma.conf如下:
// Karma configuration
// Generated on Mon Jan 11 2016 09:43:00 GMT+0000 (GMT Standard Time)
module.exports = function (config) {
config.set({
// base path that will be used to resolve all patterns (eg. files, exclude)
basePath: '',
// frameworks to use
// available frameworks: https://npmjs.org/browse/keyword/karma-adapter
frameworks: ['phantomjs-shim', 'browserify', 'mocha'],
// list of files / patterns to load in the browser
files: [
'https://code.jquery.com/jquery-2.2.0.min.js',
'http://cdn.kendostatic.com/2015.3.1111/js/kendo.all.min.js',
'test_unit/*Spec.js',
'client/scripts/*.js'
],
// list of files to exclude
exclude: [
],
// preprocess matching files before serving them to the browser
// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
preprocessors: {
'test_unit/*Spec.js': ['browserify'],
'client/scripts/*.js': ['browserify', 'coverage']
},
// test results reporter to use
// possible values: 'dots', 'progress'
// available reporters: https://npmjs.org/browse/keyword/karma-reporter
reporters: ['progress', 'coverage', 'junit'],
// Configure jUnit reporter
junitReporter: {
outputDir: '', // results will be saved as $outputDir/$browserName.xml
outputFile: undefined, // if included, results will be saved as $outputDir/$browserName/$outputFile
suite: '', // suite will become the package name attribute in xml testsuite element
useBrowserName: true // add browser name to report and classes names
},
// Configure coverage reporter
coverageReporter: {
type: 'html',
dir: 'test_coverage',
subdir: '.',
file: 'coverage.htm'
},
// web server port
port: 9876,
// enable / disable colors in the output (reporters and logs)
colors: true,
// level of logging
// possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
logLevel: config.LOG_INFO,
// enable / disable watching file and executing tests whenever any file changes
autoWatch: false,
browserify: {
configure: function (bundle) {
bundle.transform('reactify', { extensions: ['.jsx'] });
}
},
// Continuous Integration mode
// if true, Karma captures browsers, runs the tests and exits
singleRun: true,
// Concurrency level
// how many browser should be started simultaneous
concurrency: Infinity,
})
}
This does produce a report, but this shows 100% and the only line found in the common.js file is: 这确实产生了一个报告,但这显示了100%,并且在common.js文件中找到的唯一行是:
require("C:\\Source\\ProjectName\\client\\scripts\\common.js");
I attempted to add Browerify-Istanbul into the mix, by adding a require for it at the top of the Karma.conf an additional transform in the browserify section 我尝试将Browerify-Istanbul添加到混合中,通过在Karma.conf的顶部添加一个需求,在browserify部分中添加一个额外的转换
bundle.transform(istanbul)
However this just makes my tests fail and throw several errors: 然而,这只会使我的测试失败并抛出几个错误:
undefined is not an object (evaluating '__cov_qQLFhXEMt7fatxiMx0_vQQ.b[' 1'][0]') getAjaxBaseUrl@C:/Users/CHARLE~1.WIC/AppData/Local/Temp/0d61da722d2838c9 600d83d1cbb4c0b8.browserify:43:1498 C:/Users/CHARLE~1.WIC/AppData/Local/Temp/0d61da722d2838c9600d83d1cbb4c0b 8.browserify:51742:1849 undefined不是一个对象(评估'__cov_qQLFhXEMt7fatxiMx0_vQQ.b ['1'] [0]')getAjaxBaseUrl @ C:/Users/CHARLE~1.WIC/AppData/Local/Temp/0d61da722d2838c9 600d83d1cbb4c0b8.browserify:43:1498 C: /Users/CHARLE~1.WIC/AppData/Local/Temp/0d61da722d2838c9600d83d1cbb4c0b 8.browserify:51742:1849
16 02 2016 09:14:08.515:ERROR [coverage]: [TypeError: Cannot read property 'star t' of undefined] TypeError: Cannot read property 'start' of undefined at C:\\Source\\ProjectName\\node_modules\\istanbul\\lib\\o bject-utils.js:59:44 at Array.forEach (native) at Object.addDerivedInfoForFile (C:\\Source\\ProjectName\\node_modules\\istanbul\\lib\\object-utils.js:58:37) at Object.Collector.fileCoverageFor (C:\\Source\\ProjectName\\node_modules\\istanbul\\lib\\collector.js:94:15) at C:\\Source\\ProjectName\\node_modules\\istanbul\\lib\\r eport\\html.js:558:90 at Array.forEach (native) at HtmlReport.Report.mix.writeReport (C:\\Source\\ProjectName\\node_modules\\istanbul\\lib\\report\\html.js:557:27) at writeReport (C:\\Source\\ProjectName\\node_modules\\k arma-coverage\\lib\\reporter.js:62:16) at C:\\Source\\ProjectName\\node_modules\\karma-coverage \\lib\\reporter.js:288:11 at C:\\Source\\ProjectName\\node_modules\\karma\\lib\\help er.js:82:7 at FSReqWrap.oncomplete (fs.js:82:15) 16 02 2016 09:14:08.515:错误[覆盖]:[TypeError:无法读取未定义的属性'star t'类型错误:无法在C:\\ Source \\ ProjectName \\ node_modules \\ istanbul \\ lib中读取未定义的属性'start' \\ o bject-utils.js:59:44位于Object.Collector的Object.addDerivedInfoForFile(C:\\ Source \\ ProjectName \\ node_modules \\ istanbul \\ lib \\ object-utils.js:58:37)的Array.forEach(native) .fileCoverageFor(C:\\ Source \\ ProjectName \\ node_modules \\ istanbul \\ lib \\ collector.js:94:15)位于C:\\ Source \\ ProjectName \\ node_modules \\ istanbul \\ lib \\ r \\ net \\ html.js:558:90 at Array .forEach(native)at writeReport(C:\\ Source \\ ProjectName \\ node_modules \\ k)中的HtmlReport.Report.mix.writeReport(C:\\ Source \\ ProjectName \\ node_modules \\ istanbul \\ lib \\ report \\ html.js:557:27) arma-coverage \\ lib \\ reporter.js:62:16)在C:\\ Source \\ ProjectName \\ node_modules \\ karma-coverage \\ lib \\ reporter.js:288:11 at C:\\ Source \\ ProjectName \\ node_modules \\ karma \\ lib \\ help er.js:82:7 at FSReqWrap.oncomplete(fs.js:82:15)
Am I missing something, or going about this the wrong way? 我错过了一些东西,还是以错误的方式解决这个问题?
I had the exact same issue. 我有完全相同的问题。 What worked for me was removing "coverage" from the preprocessors section AND using browserify-istanbul. 对我有用的是从预处理器部分删除“coverage”并使用browserify-istanbul。 Also, you want to configure browserify-istanbul to ignore your test files. 此外,您要配置browserify-istanbul以忽略您的测试文件。
So your preprocessors should look something like (removed 'coverage'): 所以你的预处理器应该看起来像(删除'覆盖'):
// preprocess matching files before serving them to the browser
// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
preprocessors: {
'test_unit/*Spec.js': ['browserify'],
'client/scripts/*.js': ['browserify']
},
And your browserify config should look something like: 您的browserify配置应该类似于:
browserify: {
configure: function (bundle) {
bundle.transform('reactify', { extensions: ['.jsx'] });
bundle.transform(require('browserify-istanbul')({
ignore: ['**/test_unit/**']
}));
}
},
Hope that helps 希望有所帮助
For me the solution was to: 对我来说,解决方案是:
delete 'coverage' in the array of values of *.js files from preprocessors index into karma.conf 从预处理器索引中将* .js文件的值数组中的'coverage'删除到karma.conf中
Hope that helps 希望有所帮助
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