def "ignores buildSrc file that is not a directory"() {
        expect:
        !isValidBuildSrcBuild(temp.file("buildSrc"))
        !isValidBuildSrcBuild(temp.createFile("buildSrc"))
    }

    def "ignores empty buildSrc directory"() {
        expect:
        !isValidBuildSrcBuild(temp.createDir("buildSrc"))
    }

    def "ignores buildSrc directory without valid Gradle build"() {
        when:

        System.arraycopy(buildFileNames, 0, GRADLE_BUILD_FILES, settingsFileNames.length, buildFileNames.length);
    }

    public static boolean isValidBuildSrcBuild(File buildSrcDir) {
        if (!buildSrcDir.exists()) {
            return false;
        }
        if (!buildSrcDir.isDirectory()) {
            LOGGER.info("Ignoring buildSrc: not a directory.");

        }

        // Allow a buildSrc directory to have no settings file
        if (startParameter.getProjectDir() != null && startParameter.getProjectDir().getName().equals(SettingsInternal.BUILD_SRC) && BuildSrcDetector.isValidBuildSrcBuild(startParameter.getProjectDir())) {
            return true;
        }

        // Use an empty settings for a target build file located in the same directory as the settings file.

    }

    private void maybeAddBuildSrcBuild(BuildState owner) {
        File buildSrcDir = new File(owner.getBuildRootDir(), SettingsInternal.BUILD_SRC);
        if (!BuildSrcDetector.isValidBuildSrcBuild(buildSrcDir)) {
            return;
        }

        BuildDefinition buildDefinition = buildStateFactory.buildDefinitionFor(buildSrcDir, owner);