How do you use karma mocha reporter?

What is karma coverage Istanbul reporter?

A karma reporter that uses the latest istanbul 1. x APIs (with full sourcemap support) to report coverage.

What is karma mocha?

Mocha is a test framework running on browser or node. js, Karma is a test runner powered by the AngularJs team that allows you to run your test on multiple browsers.

What is Mocha reporter?

Mocha allows you to define and use custom reporters install via npm . For example, if mocha-foo-reporter was published to the npm registry, you could install it via npm install mocha-foo-reporter –save-dev , then use it via mocha –reporter mocha-foo-reporter .

How do I set up Karma-coverage?

Karma can generate code coverage using awesome Istanbul. If you want to generate the coverage, you need to configure up to three parts: preprocessor coverage (required) reporter coverage (required)


  1. html (default)
  2. lcov (lcov and html)
  3. lcovonly.
  4. text.
  5. text-summary.
  6. cobertura (xml format supported by Jenkins)

How do I run code coverage in karma?

To enable this, open the Karma test platform configuration file, karma. conf. js , and add the check property in the coverageReporter: key. The check property causes the tool to enforce a minimum of 80% code coverage when the unit tests are run in the project.

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What is the difference between mocha and karma?

I know Karma is a Test Runner and Mocha is a unit testing Framework, but Mocha also has its own driver and can be used for running tests in the browser. …

What is difference between mocha and chai?

It tests coverage reports. The next testing tool we are going to talk about is Chai, which is a TDD assertion library for NodeJS and the browser. Chai can easily be paired with any Javascript testing framework. The basic difference between the two is that mocha is a framework whereas chai is a library.

What is the difference between Jasmine and karma?

Jasmine can be classified as a tool in the “Javascript Testing Framework” category, while Karma is grouped under “Browser Testing”. “Can also be used for tdd ” is the primary reason why developers consider Jasmine over the competitors, whereas “Test Runner” was stated as the key factor in picking Karma.

How do you skip test cases in mocha?

You can skip tests by placing an x in front of the describe or it block, or placing a . skip after it. describe(‘feature 1’, function() {}); describe.

What is done in mocha?

Mocha is a feature-rich JavaScript test framework running on Node. js and in the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases.

How do you install jasmine and karma?

Install and use Karma-Jasmine for automated testing

  1. Step 1: Install Node. JS. …
  2. Step 2: Install Karma. Run the Node.js command-line program: Node.js command prompt: …
  3. Step 3: Install the karma-jasmine/karma-chrome-launcher plug-in. …
  4. Step 4: Install karma-cli.
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How do I exclude files from Karma-coverage?

The one above is the default example in karma-coverage and it shows that only those files in the src folder will be preprocessed. Another trick can be to use the ! operator to exclude specific paths: preprocessors: { // source files, that you wanna generate coverage for // do not include tests or libraries ‘src/**/!