test(e2e): run e2e tests on Travis

Fixes angular#229

.travis.yml

@@ -4,35 +4,37 @@ node_js:
 - '5.4.1'
 
 addons:
-  firefox: latest
   apt:
     sources:
       - ubuntu-toolchain-r-test
     packages:
       - g++-4.8
-  hosts:
-    - localhost.firebaseio.test
 
 cache:
   directories:
     - node_modules
-    - typings
+    - ./.chrome/chromium
 
 env:
   - CXX=g++-4.8
 
+before_install:
+  - ./scripts/install_chromium.sh
+
 install:
   - npm install
+  - ./node_modules/.bin/typings install
+  - ./node_modules/.bin/webdriver-manager update
 
 before_script:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
 
 script:
-  - npm run build
-  - ./node_modules/.bin/karma start --single-run --browsers Firefox
-  # Can't run until https://github.com/angular/protractor/issues/2784 is resolved
-  #- ./node_modules/.bin/protractor protractor.conf.js --browser firefox
+  - npm run build_e2e
+  - ./node_modules/.bin/protractor protractor.conf.js --capabilities.chromeOptions.binary=$CHROMIUM_BIN
+  - ./node_modules/.bin/karma start --single-run
+
 
 notifications:
   webhooks:

protractor.conf.js

@@ -8,7 +8,10 @@ exports.config = {
   seleniumServerJar: 'node_modules/protractor/selenium/selenium-server-standalone-2.48.2.jar',
   // Capabilities to be passed to the webdriver instance.
   capabilities: {
-    'browserName': 'chrome'
+    'browserName': 'chrome',
+    chromeOptions: {
+      binary: process.env.CHROMIUM_BIN
+    }
   },
 
   // Framework to use. Jasmine is recommended.

scripts/install_chromium.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+
+set -e -x
+
+# Setup environment
+cd `dirname $0`
+source ../ci-lite/env.sh
+
+
+# This script basically follows the instructions to download an old version of Chromium: https://www.chromium.org/getting-involved/download-chromium
+# 1) It retrieves the current stable version number from https://www.chromium.org/developers/calendar (via the https://omahaproxy.appspot.com/all file), e.g. 359700 for Chromium 48.
+# 2) It checks the Travis cache for this specific version
+# 3) If not available, it downloads and caches it, using the "decrement commit number" trick.
+
+#Build version read from the OmahaProxy CSV Viewer at https://www.chromium.org/developers/calendar
+#Let's use the following version of Chromium, and inform about availability of newer build from https://omahaproxy.appspot.com/all
+#
+CHROMIUM_VERSION=386251 # Chrome 50 linux stable, see https://www.chromium.org/developers/calendar
+export CHROME_BIN=${HOME}/.chrome/chromium/chrome-linux/chrome
+
+
+PLATFORM="$(uname -s)"
+case "$PLATFORM" in
+  (Darwin)
+    ARCHITECTURE=Mac
+    DIST_FILE=chrome-mac.zip
+    ;;
+  (Linux)
+    ARCHITECTURE=Linux_x64
+    DIST_FILE=chrome-linux.zip
+    ;;
+  (*)
+    echo Unsupported platform $PLATFORM.  Exiting ... >&2
+    exit 3
+    ;;
+esac
+
+TMP=$(curl -s "https://omahaproxy.appspot.com/all") || true
+oldIFS="$IFS"
+IFS='
+'
+IFS=${IFS:0:1}
+lines=( $TMP )
+IFS=','
+for line in "${lines[@]}"
+  do
+    lineArray=($line);
+    if [ "${lineArray[0]}" = "linux" ] && [ "${lineArray[1]}" = "stable" ] ; then
+      LATEST_CHROMIUM_VERSION="${lineArray[7]}"
+    fi
+done
+IFS="$oldIFS"
+
+CHROMIUM_DIR=$HOME/.chrome/chromium
+CHROMIUM_BIN=$CHROMIUM_DIR/chrome-linux/chrome
+CHROMIUM_VERSION_FILE=$CHROMIUM_DIR/VERSION
+
+EXISTING_VERSION=""
+if [[ -f $CHROMIUM_VERSION_FILE && -x $CHROMIUM_BIN ]]; then
+  EXISTING_VERSION=`cat $CHROMIUM_VERSION_FILE`
+  echo Found cached Chromium version: ${EXISTING_VERSION}
+fi
+
+if [[ "$EXISTING_VERSION" != "$CHROMIUM_VERSION" ]]; then
+  echo Downloading Chromium version: ${CHROMIUM_VERSION}
+  rm -fR $CHROMIUM_DIR
+  mkdir -p $CHROMIUM_DIR
+
+  NEXT=$CHROMIUM_VERSION
+  FILE="chrome-linux.zip"
+  STATUS=404
+  while [[ $STATUS == 404 && $NEXT -ge 0 ]]
+  do
+    echo Fetch Chromium version: ${NEXT}
+    STATUS=$(curl "https://storage.googleapis.com/chromium-browser-snapshots/${ARCHITECTURE}/${NEXT}/${DIST_FILE}" -s -w %{http_code} --create-dirs -o $FILE) || true
+    NEXT=$[$NEXT-1]
+  done
+
+  unzip $FILE -d $CHROMIUM_DIR
+  rm $FILE
+  echo $CHROMIUM_VERSION > $CHROMIUM_VERSION_FILE
+fi
+
+if [[ "$CHROMIUM_VERSION" != "$LATEST_CHROMIUM_VERSION" ]]; then
+  echo "New version of Chromium available. Update install_chromium.sh with build number: ${LATEST_CHROMIUM_VERSION}"
+fi