I'm trying to generate a Jacoco test report in Gradle. When I try to sync my code, I will receive the following error:
Error:(56, 0) Could not find method jacocoTestReport() for arguments [build_38ehqsoyd54r3n1gzrop303so$_run_closure4@10012308] on project ':app' of type org.gradle.api.Project.
My build.gradle file contains the following items:
apply plugin: 'jacoco'
jacoco {
toolVersion = "0.7.6.201602180812"
reportsDir = file("$buildDir/reports/jacoco")
}
jacocoTestReport {
group = "Reporting"
reports {
xml.enabled true
csv.enabled false
html.destination "${buildDir}/reports/coverage"
}
}
When I look at the documentation , I don't see anything which I'm doing wrong.
Gradle version: 3.3
Why am I receiving this error and how can I fix it?
Basically I know two ways to achieve this.
The first approach is the built-in android gradle plugin feature:
android {
...
buildTypes {
debug {
testCoverageEnabled = true
}
...
}
...
}
This one will define gradle tasks, which can be executed. As far as I know this works fine with instrumentation tests. More information: Code Coverage on Android
The 2nd approach is to use this plugin:
https://github.com/vanniktech/gradle-android-junit-jacoco-plugin
Setup is easy:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.vanniktech:gradle-android-junit-jacoco-plugin:0.6.0'
}
}
apply plugin: 'com.vanniktech.android.junit.jacoco'
And after project sync, you will have tasks like jacocoTestReport<Flavor><BuildType>
We use this to measure the code coverage of our unit tests running on the local machine.