What is karma code coverage?

Same goes for karma-phantomjs-launcher, which loads PhantomJS browser into Karma, in order to be used in browsers configuration, or karma-coverage, which provides code coverage reports using Istanbul. … The coverage reporter will create a coverage report for every browser that the tests are run in.

How do I check my karma code coverage?

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.

How do I generate karma code 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)

What is karma code?

Karma is essentially a tool which spawns a web server that executes source code against test code for each of the browsers connected. The results of each test against each browser are examined and displayed via the command line to the developer such that they can see which browsers and tests passed or failed.

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What is Karma Jasmine HTML?

Reporter that dynamically shows tests results at debug. You can also run a describe block, or a single test. …

How do you generate a code coverage report?

Generate the report

  1. From the main menu, select Run | Generate Coverage Report, or click. in the Coverage tool window. …
  2. In the Generate Coverage Report dialog, specify the directory in which the generated report should be stored, and optionally select the Open generated HTML in browser checkbox. …
  3. Click Save.


How do I use LCOV code coverage?

Instructions on how to quickly get started with lcov:

  1. Ensure that the project is built using GCC.
  2. Add –coverage to compiler and linker flags (for example CFLAGS and LDFLAGS)
  3. Compile and run.
  4. Collect coverage data: lcov –capture –directory project-dir –output-file coverage.info.
  5. Generate HTML output:


What does karma mean?

English Language Learners Definition of karma

: the force created by a person’s actions that is believed in Hinduism and Buddhism to determine what that person’s next life will be like. informal : the force created by a person’s actions that some people believe causes good or bad things to happen to that person.

How do you install JaCoCo?

How to setup JaCoCo with Maven?

  1. Generate the project. Navigate to https://start.spring.io/ to generate a project with an appropriate version of build tool (maven), language (Java), the default version of spring. …
  2. Import project into IDE (i.e., Eclipse) …
  3. Add JaCoCo plugin to the pom. …
  4. Generate code coverage report.

How do you set up Karma?

Testing With AngularJS Part 1: Setting up Unit Testing With Karma

  1. STEP 1: INSTALLATION. Install Karma and the necessary plugins using NPM. # Install Karma using Node npm install karma –save-dev. …
  2. STEP 2: CONFIGURATION. Create a file called karma-conf. …
  3. STEP 3: RUNNING TESTS USING THE KARMA COMMAND LINE INTERFACE. You can execute your tests using the Karma command line interface (CLI).
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What is karma JS used for?

Karma is a test runner for JavaScript that runs on Node. js. It is very well suited to testing AngularJS or any other JavaScript projects. Using Karma to run tests using one of many popular JavaScript testing suites (Jasmine, Mocha, QUnit, etc.)

How do you write test cases for karma?

Tests make developers more confident about their work.

  1. Explain a little bit the tools karma and jasmine.
  2. Explain the karma configuration.
  3. Explain the test entry file.
  4. Create a first simple test. Introducing jasmine and angular testing features.
  5. Test an angular form. …
  6. Test a component with services.


How do I increase Jasmine code coverage?

You need to perform the following steps to generate the code coverage report for uncovered branches/code: First, you need to create a spec file ( CurrencyConverter_tests_coverage_spec. js ) under the /spec folder and get the following code from the spec file ( CurrencyConverter_tests_spec.

What is Istanbul code coverage?

Istanbul is a test coverage tool that works with many different frameworks. It tracks which parts of your code are executed by your unit tests. Thus, you can use Istanbul to view and see coverage gaps, or you can integrate it integrated into your CI pipeline to enforce coverage levels.

What code coverage means?

Code coverage is the percentage of code which is covered by automated tests. Code coverage measurement simply determines which statements in a body of code have been executed through a test run, and which statements have not. … Code coverage is part of a feedback loop in the development process.

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