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Jacoco code coverage was working fine till I upgrade Android Gradle Plugin to 4.2.0 , no only app module code coverage getting generated, for modules it is not working. Any Idea how to fix this issue.

Dev Soni
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2 Answers2

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I was having the same problem after upgrading to 4.2.1.

It looks like the Jacoco execution data file for non-instrumented unit tests has been renamed to 'jacoco.exec', and moved to the module's top-level directory.

In the configuration of my JacocoReport gradle task, this works for me:

executionData.from = "${project.projectDir}/jacoco.exec"

NOTE: The execution data file for instrumented tests has not been renamed or moved.

Richard Klein
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  • I haven't noticed this, my jacoco.exec seems to still be in the same location (${buildDir}/jacoco/${variantName}UnitTest.exec). But I am running into the same problem as the OP. Did you have to make any other changes? – Bradleycorn Jun 21 '21 at 16:52
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Based on amazing Richard answer, if you previously had this setup (which is pretty standard for unit and instrumented tests with Jacoco in Android)

executionData.from = fileTree(dir: project.buildDir, includes: [
  "jacoco/${testTaskName}.exec",
  "outputs/code_coverage/${variantName}AndroidTest/connected/**/*.ec"
])

You can switch to this equivalent for AGP 4.2.X

executionData.from = files([
  "$project.projectDir/jacoco.exec",
  fileTree(dir: project.buildDir, includes: [
    "outputs/code_coverage/${variantName}AndroidTest/connected/**/*.ec"
  ])
])
MatPag
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