'/a'                   | 'a'
        '/a/b/c'               | 'a/b/c'
        '/a/b/c/'              | 'a/b/c'
        ''                     | ''
    }

    def "'#relativePath' fromChild '#child' is '#result'"() {
        expect:
        VfsRelativePath.of(relativePath).pathFromChild(child).asString == result
        VfsRelativePath.of(child).pathToChild(relativePath) == result

        where:

        return fromStartParameter(startParameter, null, fromBuild);
    }

    public static BuildDefinition fromStartParameter(StartParameterInternal startParameter, @Nullable File rootBuildDir, @Nullable PublicBuildPath fromBuild) {
        return new BuildDefinition(null, rootBuildDir, startParameter, PluginRequests.EMPTY, Actions.doNothing(), fromBuild, false);
    }

    @Nullable
    private final PublicBuildPath fromBuild;

    public BuildOperationFiringSettingsPreparer(SettingsPreparer delegate, BuildOperationRunner buildOperationRunner, BuildOperationProgressEventEmitter emitter, @Nullable PublicBuildPath fromBuild) {
        this.delegate = delegate;
        this.buildOperationRunner = buildOperationRunner;
        this.emitter = emitter;
        this.fromBuild = fromBuild;
    }

    @Override

        BuildInvocationScopeId buildInvocationScopeId = services.get(BuildInvocationScopeId.class);
        PublicBuildPath fromBuild = services.get(PublicBuildPath.class);
        BuildDefinition buildDefinition = BuildDefinition.fromStartParameter(startParameter, fromBuild);

        BuildState currentBuild = services.get(BuildState.class);

            write(buildRootDir)
            write(fromBuild)
            writeBoolean(isPluginBuild)
        }
    }

    private
    suspend fun DefaultReadContext.readIncludedBuildDefinition(parentBuild: ConfigurationCacheBuild): BuildDefinition {
        val includedBuildName = readString()
        val includedBuildRootDir: File? = read()?.uncheckedCast()
        val fromBuild = readNonNull<PublicBuildPath>()