Merging Android unit test and connected test code coverage data is broken

Question

Version 2.3.3 of the Android Gradle Plugin was able to provide merged unit test and connected test code coverage data. In version 3.0.0, this capability is broken because e

Answer 1

According to Android Plugin DSL Reference that contributes Android specific things:

To specify the version of JaCoCo you want to use, you now need to include it as a buildscript dependency in your project-level build.gradle file, as follows:

buildscript {
      dependencies {
        classpath "org.jacoco:org.jacoco.core:<jacoco-version>"
        ...
    }
}

Previously Android Plugin had

android {
    jacoco {
        version = "<jacoco-version>"
    }
}

According to Gradle JaCoCo Plugin documentation that contributes task of type JacocoReport:

The JaCoCo plugin adds a project extension named jacoco of type JacocoPluginExtension, which allows configuring defaults for JaCoCo usage in your build.

jacoco {
    toolVersion = "<jacoco-version>"
}

And so here is modification for your https://github.com/pajato/acc that allows to align versions so that execution of ./gradlew clean jacocoTestReport succeeds:

buildscript {
    dependencies {
        classpath "org.jacoco:org.jacoco.core:0.7.9"
    }
}

allprojects {
    apply plugin: "jacoco"
    jacoco {
        toolVersion = "0.7.9"
    }
}