I'm trying to get a test coverage report using Gradle Android plugin 0.10.2. But I still can't get a coverage report after running some tests. (connectedAndroidTest).
my main module's build.gradle is :
apply plugin: 'android' android { compileSdkVersion 19 buildToolsVersion "19.0.3" defaultConfig { minSdkVersion 8 targetSdkVersion 19 versionCode 1 versionName "1.0" } buildTypes { debug { testCoverageEnabled true } release { runProguard false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' } } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile 'com.android.support:appcompat-v7:19.+' }
and the buildscript section of project's build gradle is :
buildscript { repositories { mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:0.10.+' } }
Once I run a gradlew connectedAndroidTest
from terminal, I can find coverage-instrumented-classes
and code-coverage
folder inside the build
folder. But I can't find coverage
folder in the reports
folder. (Only I can see is androidTests
folder)
Is there anything missing for getting a jacoco coverage report?
To get started, apply the JaCoCo plugin to the project you want to calculate code coverage for. If the Java plugin is also applied to your project, a new task named jacocoTestReport is created. By default, a HTML report is generated at $buildDir/reports/jacoco/test .
Over the hundreds of times searching the answer to getting a coverage report, I finally found an exact answer what I want.
From the this blog post, I found that gradlew createDebugCoverageReport
creates the jacoco coverage report.
Also, from the gradle plugin source code, the plugin uses jacoco 0.6.2.201302030002 by default. (therefore, jacoco version definition is not required if you are going to use a default version)
In summary, the ESSENTIAL steps to get a jacoco
coverage report with Android gradle plugin are:
build.gradle
)testCoverageEnabled true
to the build type you want (i.e. debug
) $ gradlew createDebugCoverageReport
or gradlew connectedCheck
to get a jacoco
coverage report.You can find your coverage report at the build/reports/coverage/{buildType}
. (i.e. build/reports/coverage/debug
for debug build)
(Add multi-flavor case from @odiggity's comment)
If your project uses multi-flavor configuration, use create{flavorName}CoverageReport
instead. The coverage report will be generated at build/reports/coverage/{flavorName}/{buildType}
.
Example for flavor krInternal with debug build type:
./gradlew createKrInternalDebugCoverageReport
build/reports/coverage/krInternal/debug
Since you can only get a coverage report with the emulator
and device with root permission
, you'll get following error after running a command on the regular(non-rooted) device:
05:48:33 E/Device: Error during Sync: Permission denied java.io.IOException: com.android.ddmlib.SyncException: Permission denied at com.android.builder.testing.ConnectedDevice.pullFile(ConnectedDevice.java:114) at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:158) at com.android.builder.internal.testing.SimpleTestCallable.call(SimpleTestCallable.java:42) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:695) Caused by: com.android.ddmlib.SyncException: Permission denied at com.android.ddmlib.SyncService.doPullFile(SyncService.java:511) at com.android.ddmlib.SyncService.pullFile(SyncService.java:320) at com.android.ddmlib.Device.pullFile(Device.java:849) at com.android.builder.testing.ConnectedDevice.pullFile(ConnectedDevice.java:107) ... 10 more :myDirections:connectedAndroidTest FAILED FAILURE: Build failed with an exception.
Travis-CI build script to get code coverage
Include this block in build.gradle, for all modules (library, sample, etc)
android { lintOptions { abortOnError false } }
Below is the .travis-ci.yml
file
language: android jdk: oraclejdk8 sudo: required android: components: # Uncomment the lines below if you want to # use the latest revision of Android SDK Tools - tools - platform-tools # The BuildTools version used by your project - build-tools-28.0.3 # The SDK version used to compile your project - android-28 - android-22 - add-on # Additional components - extra-google-google_play_services - extra-android-support - extra-google-m2repository - extra-android-m2repository # Specify at least one system image, # if you need to run emulator(s) during your tests - sys-img-armeabi-v7a-android-22 licenses: - 'android-sdk-preview-license-52d11cd2' - 'android-sdk-license-.+' - 'google-gdk-license-.+' before_cache: - rm -f $HOME/.gradle/caches/modules-2/modules-2.lock - rm -fr $HOME/.gradle/caches/*/plugin-resolution/ cache: directories: - $HOME/.gradle/caches/ - $HOME/.gradle/wrapper/ - $HOME/.android/build-cache before_install: - yes | sdkmanager "build-tools;28.0.3" before_script: - echo no | android create avd --force -n test -t android-22 --abi armeabi-v7a -c 100M - emulator -avd test -no-audio -no-window & - android-wait-for-emulator - sleep 180 - adb devices - adb shell input keyevent 82 & script: - ./gradlew build connectedCheck after_success: - bash <(curl -s https://codecov.io/bash)
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