test.gradle

import org.gradle.api.tasks.testing.logging.TestExceptionFormat
import org.gradle.api.tasks.testing.logging.TestLogEvent


//Source https://medium.com/@wasyl/pretty-tests-summary-in-gradle-744804dd676c

tasks.withType(Test) {
    testLogging {
        // set options for log level LIFECYCLE
        events TestLogEvent.FAILED,
                TestLogEvent.PASSED,
                TestLogEvent.SKIPPED
//                TestLogEvent.STANDARD_OUT
        exceptionFormat TestExceptionFormat.FULL
        showExceptions true
        showCauses true
        showStackTraces true

        // set options for log level DEBUG and INFO
        debug {
            events TestLogEvent.STARTED,
                    TestLogEvent.FAILED,
                    TestLogEvent.PASSED,
                    TestLogEvent.SKIPPED,
                    TestLogEvent.STANDARD_ERROR,
                    TestLogEvent.STANDARD_OUT
            exceptionFormat TestExceptionFormat.FULL
        }
        info.events = debug.events
        info.exceptionFormat = debug.exceptionFormat

        afterSuite { desc, result ->
            if (!desc.parent) { // will match the outermost suite
                def output = "Results: ${result.resultType} (${result.testCount} tests, ${result.successfulTestCount} successes, ${result.failedTestCount} failures, ${result.skippedTestCount} skipped)"
                def startItem = '|  ', endItem = '  |'
                def repeatLength = startItem.length() + output.length() + endItem.length()
                println('\n' + ('-' * repeatLength) + '\n' + startItem + output + endItem + '\n' + ('-' * repeatLength))
            }
        }
    }
}