Karma: 从命令行运行单个测试文件

我一直在找这个，找到了“相似”的答案，但不是我想要的。

现在，如果我想测试一个单一的文件与业力，我需要做的 fit()，fdescribe()文件的问题..。

然而，我真正想要的是能够通过配置文件调用 karma，并将其指向一个特定的文件，所以我根本不需要修改该文件，即:

karma run --conf karma.conf.js --file /path/to/specific/test_file.js

有没有可能做到这一点? 或与任何帮助者? (使用咕哝或吞咽?)

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最佳答案

First you need to start karma server with

karma start

Then, you can use grep to filter a specific test or describe block:

karma run -- --grep=testDescriptionFilter
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This option is no longer supported in recent versions of karma:

see https://github.com/karma-runner/karma/issues/1731#issuecomment-174227054

The files array can be redefined using the CLI as such:

karma start --files=Array("test/Spec/services/myServiceSpec.js")

or escaped:

karma start --files=Array\(\"test/Spec/services/myServiceSpec.js\"\)

References

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Even though --files is no longer supported, you can use an env variable to provide a list of files:

// karma.conf.js
function getSpecs(specList) {
if (specList) {
return specList.split(',')
} else {
return ['**/*_spec.js'] // whatever your default glob is
}
}


module.exports = function(config) {
config.set({
//...
files: ['app.js'].concat(getSpecs(process.env.KARMA_SPECS))
});
});

Then in CLI:

$ env KARMA_SPECS="spec1.js,spec2.js" karma start karma.conf.js --single-run
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I tried @Yuriy Kharchenko's solution but ran into a Expected string or object with "pattern" property error.

Therefore I made the following modifications to his answer and now I'm able to run single files using Karma:

function getSpecs(specList) {
if (specList) {
return specList.toString();
} else {
return ['**/*_spec.js'] // whatever your default glob is
}
}




module.exports = function(config) {
config.set({
//...
files: [
{ pattern: getSpecs(process.env.KARMA_SPECS), type: "module"}
]
});
});

Note: This solution only works with a single file mentioned in the KARMA_SPECS env variable. Ex: export KARMA_SPECS="src/plugins/muc-views/tests/spec1.js"


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