Run connectedAndroidTest against an emulator

Using 2.3.7 (10) armeabi for now. We can look into using more images in the
future.

.gitlab-ci.yml

@@ -16,11 +16,24 @@ before_script:
   - echo y | android -s update sdk --no-ui -a -t platform-tools,tools,build-tools-23.0.0,android-22,extra-android-m2repository
   - export PATH="$ANDROID_HOME/platform-tools:$PATH"
   - export PATH="$ANDROID_HOME/build-tools/23.0.0:$PATH"
+  - echo " == Installing emulator system images"
+  - echo y | android -s update sdk --no-ui -a -t android-10
   - echo " == Installing Gradle"
   - wget -q -O gradle.zip https://services.gradle.org/distributions/gradle-2.4-bin.zip
   - unzip -q gradle.zip
   - export PATH="$PWD/gradle-2.4/bin:$PATH"
 
-build:
+test:
   script:
-    - gradle build
+    - cd F-Droid
+    - echo " == Building via gradle"
+    - gradle clean assemble
+    - echo " == Setting up Android 2.3.7 emulator"
+    - echo no | android create avd --force -n fcl-test -t android-10 -b armeabi
+    - echo " == Starting Android 2.3.7 emulator"
+    - emulator -force-32bit -avd fcl-test -no-skin -no-audio -no-window &
+    - ./tools/wait-for-emulator
+    - echo " == Running Android tests"
+    - gradle connectedAndroidTest
+    - echo " == Stopping Android 2.3.7 emulator"
+    - kill $!

F-Droid/tools/wait-for-emulator

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+sec=0
+timeout=360
+
+err() {
+	echo "$@"
+	exit 1
+}
+
+explain() {
+	if [[ "$1" =~ "not found" ]]; then
+		printf "device not found"
+	elif [[ "$1" =~ "offline" ]]; then
+		printf "device offline"
+	elif [[ "$1" =~ "running" ]]; then
+		printf "booting"
+	else
+		printf "unknown: $1"
+	fi
+}
+
+while true; do
+	if [[ $sec -ge $timeout ]]; then
+		err "Timeout ($timeout seconds) reached - Failed to start emulator"
+	fi
+	out=$(adb -e shell getprop init.svc.bootanim 2>&1)
+	if [[ "$out" =~ "command not found" ]]; then
+		err "$out"
+	fi
+	if [[ "$out" =~ "stopped" ]]; then
+		break
+	fi
+	exp=$(explain "$out")
+	let "r = sec % 5"
+	if [[ $r -eq 0 ]]; then
+		echo "Waiting for emulator to start: $exp"
+	fi
+	sleep 1
+	let "sec++"
+done
+
+echo "Emulator is ready"