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karma-coverage

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karma-coverage

A Karma plugin. Generate code coverage.

  • 2.2.1
  • latest
  • Source
  • npm
  • Socket score

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1.6M
decreased by-8.07%
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4
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What is karma-coverage?

The karma-coverage npm package is a plugin for the Karma test runner that generates code coverage reports. It uses Istanbul under the hood to instrument the code and then record the coverage data when the tests are run. The reports can be generated in various formats and can be integrated into continuous integration workflows to ensure code quality.

What are karma-coverage's main functionalities?

Coverage Reporting

This feature allows you to generate coverage reports in various formats such as HTML, LCOV, and JSON. The code sample shows how to configure Karma to use the karma-coverage plugin to generate an HTML coverage report.

module.exports = function(config) {
  config.set({
    // other Karma configuration...
    reporters: ['progress', 'coverage'],
    preprocessors: {
      '**/*.js': ['coverage']
    },
    coverageReporter: {
      type : 'html',
      dir : 'coverage/'
    }
  });
};

Threshold Enforcement

This feature allows you to enforce coverage thresholds. If the code does not meet the specified thresholds for statements, branches, functions, or lines, Karma will exit with an error. The code sample demonstrates how to set these thresholds in the Karma configuration.

module.exports = function(config) {
  config.set({
    // other Karma configuration...
    reporters: ['progress', 'coverage'],
    coverageReporter: {
      check: {
        global: {
          statements: 80,
          branches: 80,
          functions: 80,
          lines: 80
        }
      }
    }
  });
};

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Package last updated on 23 Jun 2023

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