}

  public void testNull() throws Exception {
    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {
    // not bothering testing all variations, since we know they share implementations
    assertTrue(Striped.lock(100).size() >= 100);
    assertTrue(Striped.lock(256).size() == 256);

  const std::string base = GetURIForPath("GetChildren");
  tf_gcs_filesystem::CreateDir(filesystem_, base.c_str(), status_);
  EXPECT_TF_OK(status_);

  const std::string file = io::JoinPath(base, "TestFile.csv");
  WriteString(file, "test");
  EXPECT_TF_OK(status_);

  const std::string subdir = io::JoinPath(base, "SubDir");
  tf_gcs_filesystem::CreateDir(filesystem_, subdir.c_str(), status_);

	}
}

// Tests if the environment we are running is Helm chart.
func TestGetHelmVersion(t *testing.T) {
	createTempFile := func(content string) string {
		tmpfile, err := os.CreateTemp("", "helm-testfile-")
		if err != nil {
			t.Fatalf("Unable to create temporary file. %s", err)
		}
		if _, err = tmpfile.WriteString(content); err != nil {
			t.Fatalf("Unable to create temporary file. %s", err)
		}

}

func TestFileReader(t *testing.T) {
	type (
		testRead struct { // Read(cnt) == (wantStr, wantErr)
			cnt     int
			wantStr string
			wantErr error
		}
		testWriteTo struct { // WriteTo(testFile{ops}) == (wantCnt, wantErr)
			ops     fileOps
			wantCnt int64
			wantErr error
		}
		testRemaining struct { // logicalRemaining() == wantLCnt, physicalRemaining() == wantPCnt
			wantLCnt int64

	}
	p.ctxt.InitTextSym(nameAddr.Sym, int(flag), p.pos())
	prog := &obj.Prog{
		Ctxt: p.ctxt,
		As:   obj.ATEXT,
		Pos:  p.pos(),
		From: nameAddr,
		To: obj.Addr{
			Type:   obj.TYPE_TEXTSIZE,
			Offset: frameSize,
			// Argsize set below.
		},
	}
	nameAddr.Sym.Func().Text = prog
	prog.To.Val = int32(argSize)
	p.append(prog, "", true)
}

// asmData assembles a DATA pseudo-op.

	// create xlStorage test setup
	storage, path, err := newXLStorageTestSetup(t)
	if err != nil {
		t.Fatalf("Unable to create xlStorage test setup, %s", err)
	}

	volName := "testvol"
	fileName := "testfile"
	if err := storage.MakeVol(context.Background(), volName); err != nil {
		t.Fatal(err)
	}

	// 1) Whole-file bitrot check on proper file
	size := int64(4*1024*1024 + 100*1024) // 4.1 MB