ScalaTestAction.groovy

package com.github.maiflai

import org.gradle.api.Action
import org.gradle.api.internal.file.FileResolver
import org.gradle.api.tasks.testing.Test
import org.gradle.process.internal.DefaultJavaExecAction
import org.gradle.process.internal.JavaExecAction

class ScalaTestAction implements Action<Test> {

    @Override
    void execute(Test t) {
        FileResolver fileResolver = t.getServices().get(FileResolver.class);
        JavaExecAction javaExecHandleBuilder = new DefaultJavaExecAction(fileResolver);
        javaExecHandleBuilder.setMain('org.scalatest.tools.Runner')
        javaExecHandleBuilder.setClasspath(t.getClasspath())
        javaExecHandleBuilder.setArgs(getArgs(t))
        javaExecHandleBuilder.setJvmArgs(t.getJvmArgs())
        javaExecHandleBuilder.setSystemProperties(t.getSystemProperties())
        javaExecHandleBuilder.execute();
    }

    private static Iterable<String> getArgs(Test t) {
        List<String> args = new ArrayList<String>()
        args.add('-P')
        args.add('-R')
        args.add(t.getTestClassesDir().absolutePath)
        if (t.reports.getJunitXml().isEnabled()){
            args.add('-u')
            args.add(t.reports.getJunitXml().getEntryPoint().getAbsolutePath())
        }
        if (t.reports.getHtml().isEnabled()){
            args.add('-h')
            def point = t.reports.getHtml().getEntryPoint()
            if (point.isDirectory()){
                args.add(point.getAbsolutePath())
            } else {
                args.add(point.getParent())
            }
        }
        return args
    }
}