Jasmine / Karma seed reporter for random test order

jasmine_seed_reporter.js

var SeedReporter = function(baseReporterDecorator) {
  baseReporterDecorator(this);

  this.onBrowserComplete = function(browser, result) {
    if (result.order && result.order.random && result.order.seed) {
      this.write("%s: Randomized with seed %s\n", browser, result.order.seed);
    }
  };
};

module.exports = {
  "reporter:jasmine-seed": ["type", SeedReporter]
};

karma.conf.js

const jasmineSeedReporter = require("./spec/javascript/support/jasmine_seed_reporter.js")

module.exports = function(config) {
  // abridged  
  plugins: [
    "karma-*",
    jasmineSeedReporter
  ],

  reporters: ["progress", "jasmine-seed"],

  client: {
    jasmine: {
      random: true
      // seed: 1234 // Specify if you need to re-run the same seed
    }
  }
}

Almost worked, but I had to do some changes to this karma.conf.js example:

// filaname was wrong, _ instead of -
const jasmineSeedReporter = require('./spec/javascript/support/jasmine-seed-reporter.js')

module.exports = function(config) {
  // abridged  
  plugins: [
    'karma-*',
    // here I had to change the path and add the ./spec/javascript, but maybe because my karma.conf.js is at the root of my project
    require('./spec/javascript/support/jasmine-seed-reporter.js')
  ],

  // here I had to change jasmineSeedReporter by the name of the reporter exported in jasmine-seed-reporter.js, jasmine-seed
  reporters: ['progress', 'jasmine-seed'],

  client: {
    jasmine: {
      random: true
      // seed: 1234 // Specify if you need to re-run the same seed
    }
  }
}

then it worked for me.

thanks

Good job guys! 👍 Just note that it was failing for me because seed value should be a string.

Hi, thanks for this solution 👍

By the way i found what logs is duplicate with this reporter and fix it add stub for onBrowserLog. Maybe it help somebody else.

const SeedReporter = function(baseReporterDecorator) {
	baseReporterDecorator(this);

	this.onBrowserLog = function(browser, log, type) {
		// For prevent log duplicate.
	};

...
};

Thanks @Furg - that comment saved me hours...

Is there a way to print the seed before the tests start? We have a specific issue where an error is thrown in the after all and therefore throwing the error all the way up it seems. So since the tests can't complete I don't get the seed value to replicate.

@douglasrlee - I haven't tried it, but this reporter seems to print the seed before & after the spec run which might help you: https://github.com/dmitryshindin/karma-jasmine-order-reporter

@douglasrlee - I haven't tried it, but this reporter seems to print the seed before & after the spec run which might help you: https://github.com/dmitryshindin/karma-jasmine-order-reporter

Fantastic! Thanks. Here is a screenshot of it working: