runtimeExec().groovy        | "buildSrc/build.gradle"        | "Build file 'buildSrc/build.gradle': line 5"
        exec().kotlin               | "buildSrc/build.gradle.kts"    | "Build file 'buildSrc/build.gradle.kts'"
        javaexec().kotlin           | "buildSrc/build.gradle.kts"    | "Build file 'buildSrc/build.gradle.kts'"
        processBuilder().kotlin     | "buildSrc/build.gradle.kts"    | "Build file 'buildSrc/build.gradle.kts'"

    def setup() {
        ops = new BuildOperationsFixture(executer, temporaryFolder)
        file("buildSrc/src/main/java/Thing.java") << "class Thing { }"
    }

    @ToBeFixedForConfigurationCache(skip = INVESTIGATE)
    def "includes build identifier in build operations with #display"() {
        when:
        file("buildSrc/settings.gradle") << settings << "\n"
        succeeds()

        then:

class BuildSrcCrossVersionSpec extends ToolingApiSpecification {
    def buildSrc = file("buildSrc")

    def setup() {
        settingsFile << """
            throw new GradleException("do not evaluate")
        """
        buildSrc.file("build.gradle") << '''
            plugins {
                id 'java'
            }
        '''
    }

    def "buildSrc without settings file can execute standalone"() {
        when:

        outputContains('system_property_available in buildSrc:                 true')
        outputContains('system_property_available in buildSrc:                 true')
        outputContains('project_property_available in buildSrc:                false')
        outputContains('system_property_available in included buildSrc:        true')
        outputContains('project_property_available in included buildSrc:       false')

                        }
                    }
            """
        }
    }

    static class BuildSrc extends BuildWithGradleProperties {

        @Override
        void setup(AbstractIntegrationSpec spec) {
            spec.file("buildSrc/gradle.properties") << "bar=101"
            spec.file("buildSrc/build.gradle") << echoTaskForProperty("bar")
        }

        @Override
        String task() {

        dependency "org.test:buildB:1.0"

        createDirs("buildB", "buildB/buildSrc", "buildB/buildSrc/b1", "buildB/buildSrc/b2")
        buildB.file("buildSrc/settings.gradle") << """
            $settings
            include 'b1', 'b2'
        """
        buildB.file("buildSrc/build.gradle") << """
            allprojects { apply plugin: 'java' }

        expect:
        executer.usingProjectDirectory(file("buildSrc"))
        fails("tasks")

        file("buildSrc").assertIsEmptyDir()
        assertNoProjectCaches(executer.gradleUserHomeDir)
    }

    def "treats empty buildSrc inside a build as undefined build"() {
        given:
        settingsFile.touch()
        file("buildSrc").createDir()

        expect:

        output.contains('system_property_available in buildSrc:                 true')
        output.contains('project_property_available in buildSrc:                false')
        output.contains('overridden_by_includedBuild in buildSrc:               null')
        output.contains('system_property_available in included buildSrc:        true')
        output.contains('project_property_available in included buildSrc:       false')

        def buildSrc = model.editableBuilds[0]
        buildSrc.buildIdentifier.rootDir == file("buildSrc")
        buildSrc.includedBuilds.empty
        buildSrc.editableBuilds.empty

        model.editableBuilds[1].is(included)

        def includedBuildSrc = model.editableBuilds[2]
        includedBuildSrc.buildIdentifier.rootDir == file("child/buildSrc")
        includedBuildSrc.includedBuilds.empty

        file("buildSrc/build.gradle") << """
            System.clearProperty("buildsrc")

            gradle.buildFinished {
                println "buildSrc finished"
                System.setProperty("buildsrc", "done")
            }
        """
        file("build.gradle") << """
            task thing {
                doLast {
                    println("running task")