Travis + SauceLabs + Karma setup (second pass)

- add note about exporting `global` in `browser-entry.js`
- remove too-short timeout for "throw" unit tests (because SauceLabs)
- revert modification to `isatty()` function of `lib/browser/tty.js`
- switch reporter to `karma-spec-reporter`
- use custom `karma-no-mocha` package
- fixtures in `test/browser-fixtures/`
- use single `karma.conf.js`

Makefile

@@ -48,19 +48,19 @@ test: lint test-node test-browser
 
 test-browser-unit: mocha.js
 	@printf "==> [Test :: Browser]\n"
-	@$(KARMA) start
+	@NODE_PATH=. $(KARMA) start
 
 test-browser-bdd:
 	@printf "==> [Test :: Browser :: BDD]\n"
-	@KARMA_INTERFACE=bdd $(MAKE) test-browser-unit
+	@MOCHA_UI=bdd $(MAKE) test-browser-unit
 
 test-browser-qunit:
 	@printf "==> [Test :: Browser :: QUnit]\n"
-	@KARMA_INTERFACE=qunit $(MAKE) test-browser-unit
+	@MOCHA_UI=qunit $(MAKE) test-browser-unit
 
 test-browser-tdd:
 	@printf "==> [Test :: Browser :: TDD]\n"
-	@KARMA_INTERFACE=tdd $(MAKE) test-browser-unit
+	@MOCHA_UI=tdd $(MAKE) test-browser-unit
 
 test-jsapi:
 	@printf "==> [Test :: JS API]\n"

browser-entry.js

@@ -160,4 +160,7 @@ Mocha.process = process;
 global.Mocha = Mocha;
 global.mocha = mocha;
 
+// this allows test/acceptance/required-tokens.js to pass; thus,
+// you can now do `const describe = require('mocha').describe` in a
+// browser context (assuming browserification).  should fix #880
 module.exports = global;

karma.conf.js

@@ -1,13 +1,96 @@
-var getConfig = require('./.karma-config');
+'use strict';
 
 module.exports = function(config) {
-  var cfg = getConfig();
-  var ui = process.env.KARMA_INTERFACE;
+  var cfg = {
+    frameworks: [
+      'browserify',
+      'expect',
+      'mocha'
+    ],
+    files: [
+      'test/browser-fixtures/bdd.js',
+      'test/acceptance/*.js'
+    ],
+    exclude: [
+      'test/acceptance/http.js',
+      'test/acceptance/fs.js',
+      'test/acceptance/lookup-files.js',
+      'test/acceptance/require/**/*.js',
+      'test/acceptance/misc/**/*.js'
+    ],
+    preprocessors: {
+      'test/**/*.js': ['browserify']
+    },
+    browserify: {
+      debug: true,
+      configure: function configure(b) {
+        b.ignore('glob')
+          .ignore('jade')
+          .ignore('supports-color')
+          .exclude('./lib-cov/mocha');
+      }
+    },
+    reporters: ['spec'],
+    colors: true,
+    browsers: ['PhantomJS'],
+    logLevel: config.LOG_INFO,
+    singleRun: true
+  };
+
+  // see https://github.com/saucelabs/karma-sauce-example
+  // TO RUN LOCALLY:
+  // Execute `CI=1 make test-browser`, once you've set the SAUCE_USERNAME and
+  // SAUCE_ACCESS_KEY env vars.
+  if (process.env.CI) {
+    if (!(process.env.SAUCE_USERNAME || process.env.SAUCE_ACCESS_KEY)) {
+      throw new Error('Must set SAUCE_USERNAME and SAUCE_ACCESS_KEY '
+        + 'environment variables!');
+    }
+    cfg.reporters.push('saucelabs');
+    cfg.browsers.push('ie8');
+    cfg.customLaunchers = {
+      ie8: {
+        base: 'SauceLabs',
+        browserName: 'internet explorer',
+        platform: 'Windows XP',
+        version: '8.0'
+      }
+    };
+
+    cfg.sauceLabs = {
+      public: 'public'
+    };
+
+    if (process.env.TRAVIS) {
+      // correlate build/tunnel with Travis
+      cfg.sauceLabs.build = 'TRAVIS #' + process.env.TRAVIS_BUILD_NUMBER
+        + ' (' + process.env.TRAVIS_BUILD_ID + ')';
+      cfg.sauceLabs.tunnelIdentifier = process.env.TRAVIS_JOB_NUMBER;
+      cfg.sauceLabs.startConnect = false;
+    } else {
+      // otherwise just make something up
+      cfg.sauceLabs.build = require('os').hostname() + ' (' + Date.now() + ')';
+    }
+
+    // for slow browser booting, ostensibly
+    cfg.captureTimeout = 120000;
+  }
+
+  // the MOCHA_UI env var will determine if we're running interface-specific
+  // tets.  since you can only load one at a time, each must be run separately.
+  // each has its own set of acceptance tests and a fixture.
+  // the "bdd" fixture is used by default.
+  var ui = process.env.MOCHA_UI;
   if (ui) {
+    if (cfg.sauceLabs) {
+      cfg.sauceLabs.testName = 'Interface "' + ui + '" integration tests';
+    }
     cfg.files = [
-      getConfig.uiFixturePaths[ui],
-      './test/acceptance/interfaces/' + ui + '.js'
+      'test/browser-fixtures/' + ui + '.js',
+      'test/acceptance/interfaces/' + ui + '.js'
     ];
+  } else if (cfg.sauceLabs) {
+    cfg.sauceLabs.testName = 'Unit Tests';
   }
 
   config.set(cfg);

lib/browser/tty.js

@@ -1,5 +1,5 @@
 exports.isatty = function isatty() {
-  return false;
+  return true;
 };
 
 exports.getWindowSize = function getWindowSize() {