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karma.conf.js
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karma.conf.js
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'use strict';
const fs = require('fs');
const path = require('path');
const mkdirp = require('mkdirp');
const baseBundleDirpath = path.join(__dirname, '.karma');
const browserPlatformPairs = {
'chrome@latest': 'Windows 8',
'MicrosoftEdge@latest': 'Windows 10',
'internet [email protected]': 'Windows 8.1',
'firefox@latest': 'Windows 10',
'safari@latest': 'OS X 10.12'
};
module.exports = config => {
let bundleDirpath;
const cfg = {
frameworks: [
'browserify',
'expect',
'mocha'
],
files: [
// we use the BDD interface for all of the tests that
// aren't interface-specific.
'test/browser-fixtures/bdd.fixture.js',
'test/unit/*.spec.js'
],
preprocessors: {
'test/**/*.js': ['browserify']
},
browserify: {
debug: true,
configure: function configure (b) {
b.ignore('glob')
.ignore('fs')
.ignore('path')
.ignore('supports-color')
.on('bundled', (err, content) => {
if (err) {
throw err;
}
if (bundleDirpath) {
// write bundle to directory for debugging
fs.writeFileSync(path.join(bundleDirpath,
`mocha.${Date.now()}.js`), content);
}
});
}
},
reporters: ['mocha'],
colors: true,
browsers: ['ChromeHeadless'],
logLevel: config.LOG_INFO,
client: {
mocha: {
reporter: 'html'
}
},
mochaReporter: {
showDiff: true
}
};
// TO RUN AGAINST SAUCELABS LOCALLY, execute:
// `CI=1 SAUCE_USERNAME=<user> SAUCE_ACCESS_KEY=<key> make test-browser`
const env = process.env;
let sauceConfig;
if (env.CI) {
console.error('CI mode enabled');
if (env.TRAVIS) {
console.error('Travis-CI detected');
bundleDirpath = path.join(baseBundleDirpath, process.env.TRAVIS_BUILD_ID);
if (env.SAUCE_USERNAME && env.SAUCE_ACCESS_KEY) {
// correlate build/tunnel with Travis
sauceConfig = {
build: `TRAVIS #${env.TRAVIS_BUILD_NUMBER} (${env.TRAVIS_BUILD_ID})`,
tunnelIdentifier: env.TRAVIS_JOB_NUMBER,
startConnect: false
};
console.error('Configured SauceLabs');
} else {
console.error('No SauceLabs credentials present');
}
} else if (env.APPVEYOR) {
throw new Error('no browser tests should run on AppVeyor!');
} else {
console.error('Local/unknown environment detected');
bundleDirpath = path.join(baseBundleDirpath, 'local');
// don't need to run sauce from appveyor b/c travis does it.
if (env.SAUCE_USERNAME || env.SAUCE_ACCESS_KEY) {
const id = `${require('os').hostname()} (${Date.now()})`;
sauceConfig = {
build: id,
tunnelIdentifier: id,
startConnect: true
};
console.error('Configured SauceLabs');
} else {
console.error('No SauceLabs credentials present');
}
}
mkdirp.sync(bundleDirpath);
} else {
console.error('CI mode disabled');
}
if (sauceConfig) {
cfg.sauceLabs = sauceConfig;
addSauceTests(cfg);
}
/* the MOCHA_TEST env var will be set for "special" cases of tests.
* these may require different interfaces or other setup which make
* them unable to be batched w/ the rest.
*/
const MOCHA_TEST = env.MOCHA_TEST;
switch (MOCHA_TEST) {
case 'bdd':
case 'tdd':
case 'qunit':
if (cfg.sauceLabs) {
cfg.sauceLabs.testName = `Interface "${MOCHA_TEST}" Integration Tests`;
}
cfg.files = [
`test/browser-fixtures/${MOCHA_TEST}.fixture.js`,
`test/interfaces/${MOCHA_TEST}.spec.js`
];
break;
case 'esm':
// for now we will only run against Chrome to test this.
if (cfg.sauceLabs) {
cfg.sauceLabs.testName = 'ESM Integration Tests';
cfg.browsers = ['chrome@latest'];
cfg.customLaunchers = {
'chrome@latest': cfg.customLaunchers['chrome@latest']
};
} else if (!env.TRAVIS) {
cfg.browsers = ['Chrome'];
} else {
console.error(
'skipping ESM tests & exiting; no SauceLabs nor local run detected');
process.exit(0);
}
cfg.files = [
'test/browser-fixtures/esm.fixture.html',
'test/browser-specific/esm.spec.js'
];
break;
default:
if (cfg.sauceLabs) {
cfg.sauceLabs.testName = 'Unit Tests';
}
}
config.set(cfg);
};
function addSauceTests (cfg) {
cfg.reporters.push('saucelabs');
const browsers = Object.keys(browserPlatformPairs);
cfg.browsers = cfg.browsers.concat(browsers);
cfg.customLaunchers = browsers.reduce((acc, browser) => {
const platform = browserPlatformPairs[browser];
const [browserName, version] = browser.split('@');
acc[browser] = {
base: 'SauceLabs',
browserName: browserName,
version: version,
platform: platform
};
return acc;
}, {});
// See https://github.com/karma-runner/karma-sauce-launcher
// See https://github.com/bermi/sauce-connect-launcher#advanced-usage
Object.assign(cfg.sauceLabs, {
public: 'public',
connectOptions: {
connectRetries: 2,
connectRetryTimeout: 30000,
detached: cfg.sauceLabs.startConnect,
tunnelIdentifier: cfg.sauceLabs.tunnelIdentifier
}
});
cfg.concurrency = Infinity;
cfg.retryLimit = 1;
// for slow browser booting, ostensibly
cfg.captureTimeout = 120000;
cfg.browserNoActivityTimeout = 20000;
}