def result = withBuild { BuildLauncher it ->
            it.forLaunchables(selectorT1, selectorT2)
        }
        then:
        result.result.assertTasksExecutedInOrder(':t1', ':b:c:t1', ':b:t2', ':b:c:t2')

        when:
        result = withBuild { BuildLauncher it ->
            it.forLaunchables(selectorT2, selectorT1)
        }
        then:

        when:
        withBuild { BuildLauncher launcher ->
            launcher.forLaunchables(includedSelector)
        }

        then:
        thrown(BuildException)

        when:
        withBuild { BuildLauncher launcher ->
            launcher.forLaunchables(includedTask)
        }

        then:
        thrown(BuildException)
    }

    @Override
    public BuildLauncher forTasks(Iterable<? extends Task> tasks) {
        forLaunchables(tasks);
        return this;
    }

    @Override
    public BuildLauncher forLaunchables(Launchable... launchables) {
        return forLaunchables(Arrays.asList(launchables));
    }

    @Override
    public BuildLauncher forLaunchables(Iterable<? extends Launchable> launchables) {
        preprocessLaunchables(launchables);

        OutputStream stdout = Stub()
        OutputStream stderr = Stub()

        when:
        launcher.standardOutput = stdout
        launcher.standardError = stderr
        launcher.forLaunchables(selector(ts))
        launcher.run(handler)

        then:
        1 * asyncConnection.run(!null, !null) >> { args ->
            ConsumerAction<GradleProject> action = args[0]
            action.run(connection)

     * @since 1.12
     */
    BuildLauncher forLaunchables(Launchable... launchables);

    /**
     * Sets the launchables to execute. If no entries are specified, the project's default tasks are executed.
     *
     * @param launchables The launchables for this build.
     * @return this
     * @since 1.12
     */
    BuildLauncher forLaunchables(Iterable<? extends Launchable> launchables);

    /**

 *
 * <p>To launch a build, you pass one or more {@link org.gradle.tooling.model.Launchable} instances
 * to either {@link org.gradle.tooling.BuildLauncher#forTasks(Iterable)} or {@link org.gradle.tooling.BuildLauncher#forLaunchables(Iterable)}.</p>
 *
 * @since 1.12
 */
public interface Launchable extends ProjectModel {
    /**
     * Returns the identifier for the Gradle project that this model originated from.
     *
     * @since 2.13

 *
 * <p>To launch a build, you pass one or more {@link org.gradle.tooling.model.Launchable} instances
 * to either {@link org.gradle.tooling.BuildLauncher#forTasks(Iterable)} or {@link org.gradle.tooling.BuildLauncher#forLaunchables(Iterable)}.</p>
 *
 * @since 1.12
 */
public interface BuildInvocations extends Model, ProjectModel {

    /**
     * Returns the identifier for the Gradle project that these invocations originate from.
     *

            def launchables = findLaunchables(gradleProjects, taskName)
            assert launchables.size == 1
            def build = connection.newBuild()
            collectOutputs(build)
            build.forLaunchables(launchables[0]).run()
        }
    }

    private def findLaunchables(Collection<GradleProject> gradleProjects, String taskName) {