import org.apache.tools.ant.util.TeeOutputStream

apply plugin: 'org.junit.platform.gradle.plugin'

ext {
    junitJupiterVersion  = '5.0.0-M2'
}

dependencies {
    testCompile "org.junit.jupiter:junit-jupiter-api:${junitJupiterVersion}"
    testRuntime "org.junit.jupiter:junit-jupiter-engine:${junitJupiterVersion}"
}

junitPlatform {
    platformVersion '1.0.0-M2'
    includeClassNamePattern '.*'
}

/* NEW: (REQUIRES CODE REWRITES IN BOOK AND TEST CODE)
-> http://junit.org/junit5/docs/current/user-guide/

ext {
    junitJupiterVersion  = '5.0.0-M3'
}

dependencies {
    testCompile "org.junit.jupiter:junit-jupiter-api:${junitJupiterVersion}"
    testRuntime "org.junit.jupiter:junit-jupiter-engine:${junitJupiterVersion}"
}


junitPlatform {
    platformVersion '1.0.0-M3'

    filters {
        packages {
            exclude 'understandingcollections.jmh'
        }
        includeClassNamePattern '.*'
    }
}
*/

/* Store test output in $projectName/tests
  JUnit 5's junitPlatformTest runs as a "javaExec" rather than a "test",
  so we can't hook into the before/after test behavior.
*/
tasks.findByPath(":$name:junitPlatformTest").configure {
    File testDir = file("tests")
    if(testDir.exists()) {
        File outFile = new File(testDir, 'report.txt')
        doFirst {
            standardOutput = new TeeOutputStream(new FileOutputStream(outFile, true), System.out)
        }
        doLast {
            if(outFile.size() == 0)
                outFile.delete()
            else if(outFile.text.contains("0 tests found"))
                outFile.delete()
        }
    }
}