forked from lix-project/lix-website
119 lines
6.2 KiB
Markdown
119 lines
6.2 KiB
Markdown
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# karma-coverage-istanbul-reporter
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[](https://github.com/users/mattlewis92/sponsorship)
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[](https://travis-ci.org/mattlewis92/karma-coverage-istanbul-reporter)
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[](https://codecov.io/gh/mattlewis92/karma-coverage-istanbul-reporter)
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[](http://badge.fury.io/js/karma-coverage-istanbul-reporter)
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[](http://badge.fury.io/js/karma-coverage-istanbul-reporter)
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[](https://twitter.com/mattlewis92_)
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> A karma reporter that uses the latest istanbul 1.x APIs (with full sourcemap support) to report coverage.
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## About
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This is a reporter only and does not perform the actual instrumentation of your code. Babel users should use the [istanbul babel plugin](https://github.com/istanbuljs/babel-plugin-istanbul) to instrument your code and webpack + typescript users should use the [coverage-istanbul-loader](https://github.com/JS-DevTools/coverage-istanbul-loader) and then use this karma reporter to do the actual reporting. See the [test config](https://github.com/mattlewis92/karma-coverage-istanbul-reporter/blob/master/test/karma.conf.js) for an e2e example of how to combine them.
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## Installation
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```bash
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npm install karma-coverage-istanbul-reporter --save-dev
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```
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## Configuration
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```js
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// karma.conf.js
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const path = require('path');
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module.exports = function(config) {
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config.set({
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// ... rest of karma config
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// anything named karma-* is normally auto included so you probably dont need this
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plugins: ['karma-coverage-istanbul-reporter'],
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reporters: ['coverage-istanbul'],
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coverageIstanbulReporter: {
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// reports can be any that are listed here: https://github.com/istanbuljs/istanbuljs/tree/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib
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reports: ['html', 'lcovonly', 'text-summary'],
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// base output directory. If you include %browser% in the path it will be replaced with the karma browser name
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dir: path.join(__dirname, 'coverage'),
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// Combines coverage information from multiple browsers into one report rather than outputting a report
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// for each browser.
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combineBrowserReports: true,
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// if using webpack and pre-loaders, work around webpack breaking the source path
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fixWebpackSourcePaths: true,
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// Omit files with no statements, no functions and no branches covered from the report
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skipFilesWithNoCoverage: true,
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// Most reporters accept additional config options. You can pass these through the `report-config` option
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'report-config': {
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// all options available at: https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/html/index.js#L257-L261
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html: {
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// outputs the report in ./coverage/html
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subdir: 'html'
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}
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},
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// enforce percentage thresholds
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// anything under these percentages will cause karma to fail with an exit code of 1 if not running in watch mode
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thresholds: {
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emitWarning: false, // set to `true` to not fail the test command when thresholds are not met
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// thresholds for all files
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global: {
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statements: 100,
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lines: 100,
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branches: 100,
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functions: 100
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},
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// thresholds per file
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each: {
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statements: 100,
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lines: 100,
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branches: 100,
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functions: 100,
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overrides: {
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'baz/component/**/*.js': {
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statements: 98
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}
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}
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}
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},
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verbose: true // output config used by istanbul for debugging
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}
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});
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};
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```
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### List of reporters and options
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- [clover](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/clover/index.js#L14-L15)
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- [cobertura](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/cobertura/index.js#L16-L17)
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- [html-spa](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/html-spa/index.js#L47-L61)
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- [html](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/html/index.js#L257-L261)
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- [json-summary](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/json-summary/index.js#L12)
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- [json](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/json/index.js#L12)
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- [lcov](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/lcov/index.js#L13)
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- [lcovonly](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/lcovonly/index.js#L11-L12)
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- none
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- [teamcity](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/teamcity/index.js#L13-L14)
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- [text-lcov](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/text-lcov/index.js#L11)
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- [text-summary](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/text-summary/index.js#L13)
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- [text](https://github.com/istanbuljs/istanbuljs/blob/73c25ce79f91010d1ff073aa6ff3fd01114f90db/packages/istanbul-reports/lib/text/index.js#L231-L237)
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## Credits
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- [Original karma-coverage source](https://github.com/karma-runner/karma-coverage/blob/master/lib/reporter.js)
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- [Example of using the new reporter API](https://github.com/facebook/jest/blob/master/scripts/mapCoverage.js)
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- [Karma remap istanbul](https://github.com/marcules/karma-remap-istanbul)
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## License
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MIT
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