For making exec file configurable you need use build variables
To define variable in build.gradle (present inside 'app' folder ) at
'buildTypes' add following for both build types
buildConfigField "String", "exec_name", "\"mycoverage.exec\""
Then access this variable in your 'MainActivity.java' using
'BuildConfig.exec_name'
To generate report using build.gradle , add one task as below in
build.gradle (present inside 'app' folder )
task jacocoTestReport(type: JacocoReport) {
def coverageSourceDirs = [
'src/main/java'
]
group = "Reporting"
description = "Generates Jacoco coverage reports"
reports {
csv.enabled false
xml{
enabled = true
destination "${buildDir}/jacoco/jacoco.xml"
}
html{
enabled true
destination "${buildDir}/jacocoHtml"
}
}
classDirectories = fileTree(
dir: 'build/intermediates/classes',
excludes: ['**/R.class',
'**/R$*.class',
'**/BuildConfig.*',
'**/Manifest*.*',
'**/*Activity*.*',
'**/*Fragment*.*'
]
)
sourceDirectories = files(coverageSourceDirs)
executionData = files('coverage.exec')
}
Thanks
Abhishek
On Wed, Jan 13, 2016 at 6:14 AM, Annam, Mohan Reddy <mohan.an...@openscg.com
> wrote:
> Hi All,
>
> 1) Could you please let us know, how to add exclusions like Add below as
> Exclusions:-
>
> **/R.class,**/R$*.class,**/BuildConfig.*,**/Manifest*.*,**/*Fragment*.*,**/*Activity$*.*
> in the java class .
>
> 2) I had hot coded the device path say /mnt/sdcard/ in the jacoco source
> code and rebuild the jar and used it as jacoco default takes path as / to
> store jacoco.exec.
>
> How to pass the path as argument to android ?
>
> Thanks
> Mohan
>
>
> On Fri, Dec 18, 2015 at 12:16 AM, <abhigupta2...@gmail.com> wrote:
>
>> You can achieve code coverage of android apk using gradle and jacoco, by
>> following below steps.
>>
>> 1.Configuring JaCoCo plugin in build.gradle (present inside 'app' folder
>> ) as below
>> apply plugin: 'jacoco'
>> jacoco {
>> toolVersion = "0.7.4+"
>> }
>> 2. Enable Jacoco code coverage on the debug build in build.gradle
>> (present inside 'app' folder ) at 'buildTypes' as below
>>
>> debug {
>> testCoverageEnabled true
>> }
>> 3. Add below line in your 'app/src/main/AndroidManifest.xml ' to access
>> sdcard for writting coverage data
>> <uses-permission
>> android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
>> 4. Add below lines in 'MainActivity.java' at end
>> protected void onStop()
>> {
>> super.onStop();
>> if(BuildConfig.DEBUG)
>> {
>> try {
>> Class<?> emmaRTClass =
>> Class.forName("com.vladium.emma.rt.RT");
>> Method dumpCoverageMethod =
>> emmaRTClass.getMethod("dumpCoverageData",coverageFile.getClass(),
>> boolean.class, boolean.class);
>> dumpCoverageMethod.invoke(null,
>> "/sdcard/coverage.exec", ture, false);
>> } catch (Exception e) {}
>> }
>> }
>> 5.Build debug apk.
>> 6..Install this apk in your device , and to do the test.
>> 7.After testing kill your app.
>> 8.Connect device with computer, run below command to get coverage data
>> file from device
>> 'adb pull /sdcard/coverage.exec'
>> 9.Genrate coverage report using ant(with jacoco task) or jenkings (jacoco
>> plugin) by using following:-
>> Copy classes from "D:\coverage\app\build\intermediates\classes\debug"
>> Copy source from "D:\coverage\app\\src\main\java"
>> Copy exec file from "D:\coverage\mycoverage.exec"
>> Add below as Exclusions:-
>>
>> **/R.class,**/R$*.class,**/BuildConfig.*,**/Manifest*.*,**/*Fragment*.*,**/*Activity$*.*
>>
>>
>> Thanks
>> Abhishek Gupta
>>
>>
>> On Saturday, 17 October 2015 10:11:14 UTC+5:30, vishy wrote:
>> > Hi guys,
>> >
>> > I am investigating code-coverage for our Android app. built with Gradle
>> and Android Studio.
>> >
>> > I need code-coverage reports in two situations: during manual tests,
>> and during automated tests built with our Appium suite.
>> >
>> > I need to get a proof-of-concept that JaCoCo can indeed do code
>> coverage in this case.
>> >
>> > Given that we need coverage for Appium and manual tests, I believe
>> offline-instrumentation with JaCoCo is what I need.
>> >
>> > I have succeeded in creating an instrumented APK.
>> > But when I run the app manually, I keep seeing errors in the logcat
>> W/System.err: java.io.FileNotFoundException: /jacoco.exec: open failed:
>> EROFS (Read-only file system)
>> >
>> > From JaCoCo docs as well as general Googling, I understand that Jacoco
>> needs to know where to store the jacoco.exec file - and that I need to
>> package a jacoco-agent.properties (containing a destfile property) with the
>> APK.
>> >
>> > I have tried putting jacoco-agent.properties in the "assets" folder of
>> my app - it was packaged into the APK properly, but did not seem to have
>> any effect (i.e Jacoco failed as usual) I tried putting it inside res - it
>> did not get packaged into the APK. I tried res/raw and hit the error about
>> a dash in the filename.
>> >
>> > I am at my wit's end, and would really appreciate help. How do I
>> package jacoco-agent.properties using my Gradle build into the APK, so that
>> JaCoCo will read it?
>>
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