falsefalse · March 21, 2017 12:44 · Mar 21, 2017
diff --git a/karma.browserstack.js b/karma.browserstack.js
@@ -0,0 +1,65 @@
+// browserstack (read: IE11) config
+const karma = require('./karma.common.js')
+const appComponents = require('./app_components.js')
+
+const browserStackLauncher = {
+  ie11: {
+    'base': 'BrowserStack',
+    'browser': 'ie',
+    'browser_version': '11.0',
+    'os': 'Windows',
+    // Pick OS from the env variable or use Windows 7
+    'os_version': process.env.OS || '7',
+    'name': appComponents.id
+  }
+}
+
+const options = {
+  preprocessors: {
+    [appComponents.all[appComponents.id]]: ['webpack', 'gzip'],
+  },
+
+  // Browsers configuration
+  browsers: [Object.keys(browserStackLauncher)],
+
+  customLaunchers: browserStackLauncher,
+
+  browserStack: {
+    // Increase polling time to avoid hitting BS rate limit, default is 1000
+    pollingTimeout: 5 * 1000, /* 5 seconds */
+
+    // https://github.com/karma-runner/karma-browserstack-launcher/issues/17#issuecomment-181559755
+    startTunnel: true,
+
+    // if tests ain't completed during this timespan IE is stalled
+    timeout: 4 * 60, /* 4 minutes */
+
+    name: process.env.BUILD_TAG || false,
+
+    project: 'Platform'
+  },
+
+  // We are limited in the number of parallel VMs in BrowserStack (5)
+  // and Karma don't know how to limit parallel browser instances
+  // so waiting time must be insanely high. Default is 10 * 1000
+  browserNoActivityTimeout: 3 * 60 * 1000, /* 3 minutes */
+
+  captureTimeout: 90 * 1000, /* 1.5 minutes */
+
+  // Make Karma more tolerant to disconnects. It's required to make
+  // BrowserStack tests more stable. Default is 2000.
+  browserDisconnectTimeout: 30 * 1000, /* 30 sec */
+
+  browserDisconnectTolerance: 5,
+
+  // Reporters configuration
+  reporters: ['mocha', 'BrowserStack'],
+
+  mochaReporter: {
+    output: 'minimal'
+  }
+}
+
+module.exports = function (config) {
+  karma(config, options)
+}