}

	t.Logf("HasGoBuild is true; checking consistency with other functions")

	hasExec := false
	hasExecGo := false
	t.Run("MustHaveExec", func(t *testing.T) {
		testenv.MustHaveExec(t)
		hasExec = true
	})
	t.Run("MustHaveExecPath", func(t *testing.T) {
		testenv.MustHaveExecPath(t, "go")
		hasExecGo = true
	})
	if !hasExec {
		t.Errorf(`MustHaveExec(t) skipped unexpectedly`)
	}
	if !hasExecGo {

			return cmd.Process.Signal(interrupt)
		}
	}

	cmdExec := script.Exec(cancel, waitDelay)
	cmds["exec"] = cmdExec

	add := func(name string, cmd script.Cmd) {
		if _, ok := cmds[name]; ok {
			panic(fmt.Sprintf("command %q is already registered", name))
		}
		cmds[name] = cmd
	}

	add("cc", scriptCC(cmdExec))
	cmdGo := scriptGo(cancel, waitDelay)
	add("go", cmdGo)

	if dryRun {
		return fmt.Sprintf("Dry run: would be running podExec %s/%s/%s:%s", pod, namespace, container, cmdStr), nil
	}
	task := fmt.Sprintf("PodExec %s/%s/%s:%s", namespace, pod, container, cmdStr)
	r.addRunningTask(task)
	defer r.removeRunningTask(task)
	stdout, stderr, err := r.Client.PodExec(pod, namespace, container, cmdStr)
	if err != nil {
		return "", fmt.Errorf("podExec error: %s\n\nstderr:\n%s\n\nstdout:\n%s",

			expected string
			musthave []string
		}{
			{
				mode:     "simple",
				expected: "bar foo",
			},
			{
				mode:     "goodexit",
				expected: "orange apple",
			},
			{
				mode:     "badexit",
				expected: "blub blix",
			},
			{
				mode: "panics",
				musthave: []string{
					"fatal error: exit hook invoked panic",
					"main.testPanics",
				},
			},
			{
				mode: "callsexit",

	_ "unsafe"
)

var modeflag = flag.String("mode", "", "mode to run in")

func main() {
	flag.Parse()
	switch *modeflag {
	case "simple":
		testSimple()
	case "goodexit":
		testGoodExit()
	case "badexit":
		testBadExit()
	case "panics":
		testPanics()
	case "callsexit":
		testHookCallsExit()
	case "exit2":
		testExit2()
	default:
		panic("unknown mode")
	}
}

func testSimple() {

			return MakePos(n.Pos().Base(), 1, 1)

		// declarations
		// case *ImportDecl:
		// case *ConstDecl:
		// case *TypeDecl:
		// case *VarDecl:
		// case *FuncDecl:

		// expressions
		// case *BadExpr:
		// case *Name:
		// case *BasicLit:
		case *CompositeLit:
			if n.Type != nil {
				m = n.Type
				continue
			}
			return n.Pos()
		case *KeyValueExpr:
			m = n.Key
		// case *FuncLit:

! go env -w GOMODCACHE=./test
stderr 'go: GOMODCACHE entry is relative; must be absolute path: "./test"'

# go env -w checks validity of GOEXPERIMENT
env GOEXPERIMENT=
! go env -w GOEXPERIMENT=badexp
stderr 'unknown GOEXPERIMENT badexp'
go env -w GOEXPERIMENT=fieldtrack

# go env -w and go env -u work on unknown fields already in the go/env file
cp bad.env $GOENV
go env GOENV
cat $GOENV
go env
! stdout UNKNOWN

			for _, w := range i.WorkloadsOrFail(t) {
				w := w
				for k, v := range values {
					// can we rely on printenv being in the container once distroless is default?
					out, _, err := i.Config().Cluster.PodExec(w.PodName(), i.Config().Namespace.Name(),
						"istio-proxy", fmt.Sprintf("printenv %s", k))
					out = strings.TrimSuffix(out, "\n")
					if err != nil {
						return fmt.Errorf("could not exec into pod: %v", err)

	switch n.(type) {
	case *ast.ArrayType:
		return 1 << nArrayType
	case *ast.AssignStmt:
		return 1 << nAssignStmt
	case *ast.BadDecl:
		return 1 << nBadDecl
	case *ast.BadExpr:
		return 1 << nBadExpr
	case *ast.BadStmt:
		return 1 << nBadStmt
	case *ast.BasicLit:
		return 1 << nBasicLit
	case *ast.BinaryExpr:
		return 1 << nBinaryExpr
	case *ast.BlockStmt:

			Walk(v, n.Type)
		}
		if n.Tag != nil {
			Walk(v, n.Tag)
		}
		if n.Comment != nil {
			Walk(v, n.Comment)
		}

	case *FieldList:
		walkList(v, n.List)

	// Expressions
	case *BadExpr, *Ident, *BasicLit:
		// nothing to do

	case *Ellipsis:
		if n.Elt != nil {
			Walk(v, n.Elt)
		}

	case *FuncLit:
		Walk(v, n.Type)
		Walk(v, n.Body)

	case *CompositeLit: