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README.md

Framework Adapters for Protractor

Protractor can work with any test framework that is adapted here.

Each file details the adapter for one test framework. Each file must export a run function with the interface:

/**
 * @param {Runner} runner The Protractor runner instance.
 * @param {Array.<string>} specs A list of absolute filenames.
 * @return {Promise.<Object>} Promise resolved with the test results.  See
 *   "Requirements" section for details.
 */
export let run: (runner: Protractor.Runner, specs: string) => Promise<Object>

Requirements

  • runner.emit must be called with testPass and testFail messages. These messages must be passed a testInfo object with the following structure:

    testInfo: {
      category: string,
      name: string
    }

    The category property could be the name of the describe block in jasmine/mocha, the Feature in cucumber, or the class name in something like jUnit. The name property could be the name of an it block in jasmine/mocha, the Scenario in cucumber, or the method name in something like jUnit.

  • runner.runTestPreparer must be called after the framework has been initialized but before any spec files are run. This function returns a promise which should be waited on before executing tests. The framework should also pass an array of extra command line flags it accepts, if any.

  • runner.getConfig().onComplete must be called when tests are finished. It might return a promise, in which case exports.run's promise should not resolve until after onComplete's promise resolves.

  • The returned promise must be resolved when tests are finished and it should return a results object. This object must have a failedCount property and optionally a specResults object of the following structure:

    specResults: [{
      description: string,
      assertions: [{
        passed: boolean,
        errorMsg: string,
        stackTrace: string
      }],
      duration: integer
    }]

Future requirements

In Protractor 6.0, the following additional requirement will be added:

  • runner.afterEach will have to be called after each test finishes. It will return a promise, which should be waited for before moving onto the next test.

If you want your framework to be backwards-compatible, you can simply write:

if (runner.afterEach) {
  // Add afterEach caller
}

Failing to call runner.afterEach will cause features like restartBrowserBetweenTests to fail. Protractor may also log a warning to the console.

Custom Frameworks

If you have created/adapted a custom framework and want it added to Protractor core please send a PR so it can evaluated for addition as an official supported framework. In the meantime you can instruct Protractor to use your own framework via the config file:

export let config: Protractor.Config = {
  // set to "custom" instead of jasmine/mocha
  framework: 'custom',
  // path relative to the current config file
  frameworkPath: './frameworks/my_custom_jasmine.js',
};

More on this at the configuration.

Disclaimer: current framework interface can change without a major version bump.