then:
        idle()

        when:
        startBuild()
        waitForBuildToWait()

        then:
        busy()
    }

    def "a new daemon is started if all existing are busy"() {
        when:
        startBuild()

        then:
        busy()

        when:
        startBuild()

        then:
        busy 2
    }

        startBuild(task, buildCacheEnabled)
        cancelBuild(task)

        startBuild(task, buildCacheEnabled)
        cancelBuild(task)

        assert daemons.daemons.size() == 1
    }

    private void assertTaskIsCancellable(String task, boolean buildCacheEnabled = false) {
        startBuild(task, buildCacheEnabled)
        cancelBuild(task)

        startBuild("compileJava")

        then:
        handler.waitForAllPendingCalls()

        then:
        handler.releaseAll()

        then:
        succeeds()

        and:
        pidFile().exists()
        def pid2 = pidFile().text.strip() as long
        pid2 == pid1
    }

    private void startBuild(String task) {
        executer

        System.in.read() == -1
    }

    def "can cancel the build"() {
        given:
        continuousBuildEnabled()
        buildDeclaresInputs()

        when:
        def runningBuild = startBuild()

        then:
        conditions.eventually {
            waitingForChangesMessageAppears()
        }

        when:
        cancellationToken.cancel()

        then:

        when:
        startBuild(null, "US-ASCII")
        waitForBuildToWait()

        then:
        busy()
        daemonContext {
            assert daemonOpts.contains("-Dfile.encoding=US-ASCII")
        }

        then:
        completeBuild()

        then:
        idle()

        when:
        startBuild(null, "UTF-8")

    def buildDirWithScript(buildNum, buildScript) {
        def dir = buildDir(buildNum)
        dir.file("settings.gradle").touch()
        dir.file("build.gradle") << buildScript
        dir
    }

    void startBuild(String javaHome = null, String buildEncoding = null) {
        run {
            executer.withTasks("watch")
            executer.withDaemonIdleTimeoutSecs(daemonIdleTimeout)
            executer.withArguments(