def failure = new RuntimeException()

        when:
        expectSettingsBuiltWithFailure(failure)

        def controller = this.controller()
        controller.loadSettings()

        then:
        def t = thrown RuntimeException
        t == failure

        when:
        def finishResult = controller.finishBuild(null)

        then:

        expect:
        notStopped

        when: "stopped first time"
        coordinator.stop()

        then: "stops"
        stopped

        when: "requested again"
        coordinator.stop()

        then:
        stopped
        0 * _._
    }

    def "await idle timeout does nothing when already stopped"() {
        given:
        coordinator.stop()

        when:

	// InvalidPkgUse occurs when a package identifier is used outside of a
	// selector expression.
	//
	// Example:
	//  import "fmt"
	//
	//  var _ = fmt
	InvalidPkgUse

	// BadImportPath occurs when an import path is not valid.
	BadImportPath

	// BrokenImport occurs when importing a package fails.
	//
	// Example:
	//  import "amissingpackage"
	BrokenImport

    }

    def "runs action for transition when in from state"() {
        def action = Mock(Runnable)
        def controller = controller(TestState.A)

        when:
        asWorker {
            controller.transition(TestState.A, TestState.B, action)
        }

        then:
        1 * action.run()
        0 * _
    }

    def "runs action and returns result for transition when in from state"() {

    def "invalidates cache when set of Gradle property defining system properties changes"() {
        given:
        def configurationCache = newConfigurationCacheFixture()
        settingsFile << """
            println(gradleProp + '!')
        """

        when:
        configurationCacheRun "help", "-D${SYSTEM_PROJECT_PROPERTIES_PREFIX}gradleProp=1"

            }
        """

        when:
        succeeds ":customTask", "-PoutputDir=build/output1"
        then:
        executedAndNotSkipped ":customTask"

        when:
        succeeds ":customTask", "-PoutputDir=build/output2"
        then:
        executedAndNotSkipped ":customTask"

        when:
        succeeds ":customTask", "-PoutputDir=build/output1"
        then:

        when:
        runWithInput("generate", prompt, "value")

        then:
        result.assertTaskNotSkipped(":generate")
        file("build/out.txt").text == "value"

        when:
        runWithInput("generate", prompt, "value")

        then:
        result.assertTaskSkipped(":generate")

        when:
        runWithInput("generate", prompt, "")

    def "downloads deleted files again when they are referenced"() {
        given:
        buildscriptWithDependency(snapshotModule)

        when:
        succeeds 'resolve'

        then:
        def jarFile = findFile(cacheDir, "files-*/**/*.jar")

        when:
        assert jarFile.delete()

        and:
        succeeds 'resolve'

        given:
        gradle.attachSettings(state)

        when:
        gradle.resetState()

        then:
        1 * state.close()
    }

    def "get root project throws exception when root project is not available"() {
        when:
        gradle.rootProject

        then:
        thrown IllegalStateException

        when:
        def rootProject = project('root')

        !container.hasPlugin("x")
        !container.findPlugin("x")
    }

    def "fails when getting unknown plugin"() {
        when:
        container.getPlugin("unknown")

        then:
        thrown(UnknownPluginException)
    }

    def "fails when getting plugin of unknown type"() {
        when:
        container.getPlugin(plugin1Class)

        then:
        thrown(UnknownPluginException)