args = append(args, flags...)
	args = append(args, srcfname)
	cmd := testenv.Command(t, testenv.GoToolPath(t), args...)
	// "Bad line" bug #36683 is sensitive to being run in the source directory.
	cmd.Dir = "testdata"
	t.Logf("Running %v", cmd.Args)
	out, err := cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("go build %s: %v\n%s", srcfname, err, out)
	}
	need := []string{
		"TEXT main.main(SB)",
	}

	if printCode {

	cc = cc[:len(cc):len(cc)]

	return cc
}

func goEnv(t *testing.T, key string) string {
	out, err := exec.Command("go", "env", key).CombinedOutput()
	if err != nil {
		t.Logf("go env %s\n", key)
		t.Logf("%s", out)
		t.Fatal(err)
	}
	return strings.TrimSpace(string(out))

			defaulted := original.DeepCopyObject().(*flowcontrol.FlowSchema)
			scheme.Default(defaulted)
			if apiequality.Semantic.DeepEqual(original, defaulted) {
				t.Logf("Defaulting makes no change to FlowSchema: %q", original.Name)
				return
			}
			t.Errorf("Expected defaulting to not change FlowSchema: %q, diff: %s", original.Name, cmp.Diff(original, defaulted))
		})
	}

	for _, re := range errors {
		found := false
		for _, line := range lines {
			if re.Match(line) {
				t.Logf("found match for %#q: %q", re, line)
				found = true
				break
			}
		}
		if !found {
			t.Errorf("expected error output to contain %#q", re)
		}
	}

	if t.Failed() {
		t.Logf("actual output:\n%s", out)
	}
}

func sizeofLongDouble(t *testing.T) int {
	testenv.MustHaveGoRun(t)

	extra := maps.Clone(passFlagToTest)
	for _, name := range wantNames {
		delete(extra, name)
	}
	if len(extra) > 0 {
		t.Errorf("passFlagToTest contains extra entries: %v", extra)
	}

	if t.Failed() {
		t.Logf("To regenerate:\n\tgo generate cmd/go/internal/test")
	}
}

func TestPassAnalyzersToVet(t *testing.T) {
	testenv.MustHaveGoBuild(t) // runs 'go tool vet -flags'

	wantNames, err := genflags.VetAnalyzers()

		if tc.sanitizer == "memory" && !platform.MSanSupported(GOOS, GOARCH) {
			t.Logf("skipping %s test on %s/%s; -msan option is not supported.", name, GOOS, GOARCH)
			continue
		}
		if tc.sanitizer == "thread" && !compilerRequiredTsanVersion(GOOS, GOARCH) {
			t.Logf("skipping %s test on %s/%s; compiler version too old for -tsan.", name, GOOS, GOARCH)
			continue
		}

	if err != nil {
		t.Errorf("kind=%s: got unexpected error: %v", kind, err)
		return
	}
	gvk := gv.WithKind(kind)

	if len(fields) == 0 {
		t.Logf("no selectable fields for kind %q, skipping", kind)
	}
	for label := range fields {
		if label == "name" {
			t.Logf("FIXME: \"name\" is deprecated by \"metadata.name\", it should be removed from selectable fields of kind=%s", kind)
			continue
		}

	// process to exit.
	t.Run("Wait", func(t *testing.T) {
		t.Parallel()
		cmd := startHang(t, context.Background(), 1*time.Millisecond, os.Kill, 0)
		err := cmd.Wait()
		t.Logf("stderr:\n%s", cmd.Stderr)
		t.Logf("[%d] %v", cmd.Process.Pid, err)

		if err != nil {
			t.Errorf("Wait: %v; want <nil>", err)
		}
		if ps := cmd.ProcessState; !ps.Exited() {
			t.Errorf("cmd did not exit: %v", ps)

		}

		got, ok := parseRunningTests(out)
		if slices.Equal(got, want) {
			break
		}
		if ok {
			t.Logf("found running tests:\n%s\nwant:\n%s", strings.Join(got, "\n"), strings.Join(want, "\n"))
		} else {
			t.Logf("no running tests found")
		}
		t.Logf("retrying with longer timeout")
		timeout *= 2
	}
}

func TestRunningTestsInCleanup(t *testing.T) {
	t.Parallel()

		metav1.ListOptions{})
	if err == nil {
		for _, obj := range crList.Items {
			t.Logf("deleting CR %v", obj.GetName())
			if err := cs.Dynamic().Resource(gvr).Namespace(IstioNamespace).Delete(context.TODO(), obj.GetName(),
				metav1.DeleteOptions{}); err != nil {
				t.Logf("failed to delete existing CR: %v", err)
			}
		}
	} else {
		t.Logf("failed to list existing CR: %v", err.Error())
	}