settingsFile << """
            include "testlib", "common"
        """

        buildFile << """
            subprojects {
                apply plugin: 'java-library'
                configurations.all {
                   resolutionStrategy.failOnVersionConflict()
                }
            }
        """

        file("testlib/build.gradle") << """
            dependencies {

        resolve.expectGraph {
            root(":", ":test:") {
                constraint("org.gradle.test:lib-core:{strictly [1.0,1.1)}", "org.gradle.test:lib-core:1.0")
                constraint("org.gradle.test:lib-ext:{strictly [1.0,1.1)}", "org.gradle.test:lib-ext:1.0")
                edge("org.gradle.test:lib-core:1.+", "org.gradle.test:lib-core:1.0") {
                    notRequested()

	testID := h.Sum()
	if c.id1 == (cache.ActionID{}) {
		c.id1 = testID
	} else {
		c.id2 = testID
	}
	if cache.DebugTest {
		fmt.Fprintf(os.Stderr, "testcache: %s: test ID %x => %x\n", a.Package.ImportPath, id, testID)
	}

	// Load list of referenced environment variables and files
	// from last run of testID, and compute hash of that content.

	if !*testWork {
		defer removeAll(testTmpDir)
	}

	testGOCACHE, _ = cache.DefaultDir()
	if testenv.HasGoBuild() {
		testBin = filepath.Join(testTmpDir, "testbin")
		if err := os.Mkdir(testBin, 0777); err != nil {
			log.Fatal(err)
		}
		testGo = filepath.Join(testBin, "go"+exeSuffix)
		gotool, err := testenv.GoTool()
		if err != nil {
			fmt.Fprintln(os.Stderr, "locating go tool: ", err)
			os.Exit(2)

	// this list.
	registerStdTestSpecially := map[string]bool{
		// testdir can run normally as part of "go test std cmd", but because
		// it's a very large test, we register is specially as several shards to
		// enable better load balancing on sharded builders. Ideally the build
		// system would know how to shard any large test package.
		"cmd/internal/testdir": true,
	}

	// Fast path to avoid the ~1 second of `go list std cmd` when

        then:
        0 * _
    }

    def "can visit structure when collection contains paths"() {
        def visitor = Mock(FileCollectionStructureVisitor)
        def one = testDir.file('one')
        def two = testDir.file('two')

        given:
        collection.from("a", "b")

        when:
        collection.visitStructure(visitor)

        then:

	u1 := new(URL)
	err = json.Unmarshal(js, u1)
	if err != nil {
		t.Fatal(err)
	}
	if u1.String() != u.String() {
		t.Errorf("json decoded to: %s\nwant: %s\n", u1, u)
	}
}

func TestGob(t *testing.T) {
	u, err := Parse("https://www.google.com/x?y=z")
	if err != nil {
		t.Fatal(err)
	}
	var w bytes.Buffer
	err = gob.NewEncoder(&w).Encode(u)
	if err != nil {
		t.Fatal(err)
	}

		}
	}
	for i := 0; i < len(vffabsSC); i++ {
		if f := Abs(vffabsSC[i]); !alike(fabsSC[i], f) {
			t.Errorf("Abs(%g) = %g, want %g", vffabsSC[i], f, fabsSC[i])
		}
	}
}

func TestDim(t *testing.T) {
	for i := 0; i < len(vf); i++ {
		if f := Dim(vf[i], 0); fdim[i] != f {
			t.Errorf("Dim(%g, %g) = %g, want %g", vf[i], 0.0, f, fdim[i])
		}
	}
	for i := 0; i < len(vffdimSC); i++ {