Log failures in an error format that vim and other tooling can use

build.gradle

test {
  // Log failures in an error format that vim and other tooling can use
  // Something like:
  //   FILENAME:LINE_NUMBER failed: MESSAGE
  // For example:
  //   src/test/java/TestFoo.java:42 failed: junit.framework.ComparisonFailure: null expected:<[b]ar> but was:<[B]ar>
  afterTest { desc, result ->
    if (result.resultType == TestResult.ResultType.FAILURE) {
      result.getException().each { e ->
        e.getStackTrace().each { el ->
          if (el.getFileName()) {
            // Take the filename from the stacktrace line and look up the corresponding project file
            def projectFiles = new FileNameFinder().getFileNames(rootProject.projectDir.getPath(), '**/' + el.getFileName())

            projectFiles.each {
              // Build up the path to the file relative to the project root
              def relativePath = rootProject.projectDir.toPath().relativize(new File(it).toPath())
              logger.lifecycle(relativePath.toString() + ":" + el.getLineNumber() + " failed: " + e.getMessage())
            }
          }
        }
      }
    }
  }
}

integrationTest {
  // Log failures in an error format that vim and other tooling can use
  // Something like:
  //   FILENAME:LINE_NUMBER failed: MESSAGE
  // For example:
  //   src/test/java/TestFoo.java:42 failed: junit.framework.ComparisonFailure: null expected:<[b]ar> but was:<[B]ar>
  afterTest { desc, result ->
    if (result.resultType == TestResult.ResultType.FAILURE) {
      result.getException().each { e ->
        e.getStackTrace().each { el ->
          if (el.getFileName()) {
            // Take the filename from the stacktrace line and look up the corresponding project file
            def projectFiles = new FileNameFinder().getFileNames(rootProject.projectDir.getPath(), '**/' + el.getFileName())

            projectFiles.each {
              // Build up the path to the file relative to the project root
              def relativePath = rootProject.projectDir.toPath().relativize(new File(it).toPath())
              logger.lifecycle(relativePath.toString() + ":" + el.getLineNumber() + " failed: " + e.getMessage())
            }
          }
        }
      }
    }
  }
}