Feature/screenshot tests

.travis.yml

@@ -2,34 +2,64 @@ language: android
 jdk: oraclejdk8
 env:
   global:
-    - ANDROID_API=29
-    - ANDROID_BUILD_TOOLS=29.0.2
+    - ABI="default;armeabi-v7a"
+    - ANDROID_BUILD_TOOLS=28.0.3
     - ADB_INSTALL_TIMEOUT=5
+    - EMULATOR_API_LEVEL=23
+    - SYSTEM_IMAGE=/usr/local/android-sdk/system-images/android-23/default/armeabi-v7a/kernel-ranchu
+    - ANDROID_SDK_ROOT=/usr/local/android-sdk
 
 android:
   components:
     - tools
     - platform-tools
     - build-tools-$ANDROID_BUILD_TOOLS
-    - android-$ANDROID_API
     - android-$EMULATOR_API_LEVEL
+    - extra-google-google_play_services
     - extra-google-m2repository
     - extra-android-m2repository
-    - sys-img-armeabi-v7a-addon-google_apis-google-$ANDROID_API_LEVEL
-    - sys-img-armeabi-v7a-addon-google_apis-google-$EMULATOR_API_LEVEL
+    - sys-img-armeabi-v7a-android-$EMULATOR_API_LEVEL
 
   licenses:
     - android-sdk-preview-license-.+
     - android-sdk-license-.+
     - google-gdk-license-.+
+
 before_install:
   - chmod +x gradlew
   - chmod +x scripts/build_publish.sh
   - chmod +x scripts/build_compile.sh
+  #   Android test (screenshot) commands init
+  - yes | sdkmanager --sdk_root=$ANDROID_SDK_ROOT "tools" "build-tools;$ANDROID_BUILD_TOOLS" "extras;android;m2repository"
+  - export ANDROID_SDK=$ANDROID_SDK_ROOT
+  - export PATH=$ANDROID_SDK/emulator:$ANDROID_SDK/tools:$PATH
+  - export PATH=$ANDROID_SDK/tools/bin:$PATH
+  #   Android test (screenshot) commands end
   - ./gradlew dependencies || true
 
+install:
+  #   Android test (screenshot) commands init
+  - sudo -H pip install pillow
+  - sudo -H pip install pillowcase
+  #   Android test (screenshot) commands end
+
+cache:
+  directories:
+    - $HOME/.cache/pip
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/
+before_cache:
+  - rm -f $HOME/.cache/pip/log/debug.log
+  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
+  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
+
 before_script:
   - git lfs pull
+  - find /usr/local/android-sdk/system-images -type f
+  - echo no | android create avd --force -n test -k "system-images;android-$EMULATOR_API_LEVEL;$ABI" -c 100M
+  - emulator @test -kernel $SYSTEM_IMAGE -no-audio -no-window &
+  - android-wait-for-emulator
+  - adb shell input keyevent 82 &
 
 script:
   - ./scripts/build_publish.sh

build.gradle

@@ -10,6 +10,7 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.5.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.facebook.testing.screenshot:plugin:0.11.0'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
@@ -25,4 +26,4 @@ allprojects {
 
 task clean(type: Delete) {
     delete rootProject.buildDir
-}
+}

scripts/build_publish.sh

@@ -8,6 +8,6 @@ if [ $TRAVIS_BRANCH = "master" -a $TRAVIS_PULL_REQUEST = "false" ]; then
     echo "We're on the master branch."
 else
     echo "We're not on the master branch."
-    ./gradlew clean build -PdisablePreDex --stacktrace
+    ./gradlew clean build :system:verifyDebugAndroidTestScreenshotTest -PdisablePreDex --stacktrace
 fi
 

system/build.gradle

@@ -1,6 +1,7 @@
 apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
+apply plugin: 'com.facebook.testing.screenshot'
 apply from: "$rootDir/publish.gradle"
 
 android {
@@ -13,7 +14,7 @@ android {
         versionCode 1
         versionName "1.0"
 
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "com.selem.system.ScreenShotTestRunner"
         consumerProguardFiles 'consumer-rules.pro'
     }
 

system/src/androidTest/AndroidManifest.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.selem.system.test"
+    android:sharedUserId="com.selem.system.uid">
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+
+    <application android:requestLegacyExternalStorage="true"/>
+</manifest>

system/src/androidTest/java/com/selem/system/ExampleInstrumentedTest.kt

@@ -2,6 +2,8 @@ package com.selem.system
 
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
+import com.facebook.testing.screenshot.Screenshot
+import com.facebook.testing.screenshot.ViewHelpers
 import org.junit.Assert.assertEquals
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -14,9 +16,18 @@ import org.junit.runner.RunWith
 @RunWith(AndroidJUnit4::class)
 class ExampleInstrumentedTest {
     @Test
-    fun useAppContext() {
+    fun greenView_checkDefaultState() {
         // Context of the app under test.
         val appContext = InstrumentationRegistry.getInstrumentation().targetContext
-        assertEquals("com.selem.system.test", appContext.packageName)
+//        assertEquals("com.selem.system.test", appContext.packageName)
+
+        val greenView = GreenView(appContext)
+
+        ViewHelpers.setupView(greenView)
+            .setExactWidthDp(300)
+            .setExactHeightDp(100)
+            .layout()
+
+        Screenshot.snap(greenView).record()
     }
 }

system/src/androidTest/java/com/selem/system/ScreenShotTestRunner.kt

@@ -0,0 +1,17 @@
+package com.selem.system
+
+import android.os.Bundle
+import androidx.test.runner.AndroidJUnitRunner
+import com.facebook.testing.screenshot.ScreenshotRunner
+
+class ScreenShotTestRunner : AndroidJUnitRunner() {
+    override fun onCreate(arguments: Bundle?) {
+        super.onCreate(arguments)
+        ScreenshotRunner.onCreate(this, arguments)
+    }
+
+    override fun finish(resultCode: Int, results: Bundle?) {
+        ScreenshotRunner.onDestroy()
+        super.finish(resultCode, results)
+    }
+}

system/src/main/AndroidManifest.xml

@@ -1 +1,5 @@
-<manifest package="com.selem.system" />
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.selem.system"
+    android:sharedUserId="com.selem.system.uid">
+</manifest>

system/src/main/java/com/selem/system/GreenView.kt

@@ -0,0 +1,16 @@
+package com.selem.system
+
+import android.content.Context
+import android.graphics.drawable.ColorDrawable
+import android.util.AttributeSet
+import android.view.View
+import androidx.core.content.ContextCompat
+
+
+class GreenView @JvmOverloads constructor(context: Context,
+                attrs: AttributeSet? = null,
+                defStyleAttr: Int = 0): View(context, attrs, defStyleAttr) {
+    init {
+        background = ColorDrawable(ContextCompat.getColor(context, android.R.color.holo_green_light))
+    }
+}