Function TestScanSnapshotSyntheticTwoSnapshots

stack/context_test.go:1336–1418

(t *testing.T)

}

func TestScanSnapshotSyntheticTwoSnapshots(t *testing.T) {
	t.Parallel()
	in := bytes.Buffer{}
	in.WriteString("Ya\n")
	in.Write(internaltest.PanicOutputs()["simple"])
	in.WriteString("Ye\n")
	in.Write(internaltest.PanicOutputs()["int"])
	in.WriteString("Yo\n")
	panicParseDir := getPanicParseDir(t)
	ppDir := pathJoin(panicParseDir, "cmd", "panic")

	// First stack:
	prefix := bytes.Buffer{}
	s, suffix, err := ScanSnapshot(&in, &prefix, defaultOpts())
	compareErr(t, nil, err)
	if !s.guessPaths() {
		t.Error("expected success")
	}
	want := []*Goroutine{
		{
			Signature: Signature{
				State: "running",
				Stack: Stack{
					Calls: []Call{
						newCallLocal(
							"main.main",
							Args{},
							pathJoin(ppDir, "main.go"),
							74,
						),
					},
				},
			},
			ID:    1,
			First: true,
		},
	}
	compareGoroutines(t, want, s.Goroutines)
	compareString(t, "Ya\nGOTRACEBACK=all\npanic: simple\n\n", prefix.String())

	prefix.Reset()
	r := io.MultiReader(bytes.NewReader(suffix), &in)
	s, suffix, err = ScanSnapshot(r, &prefix, defaultOpts())
	compareErr(t, nil, err)
	if !s.guessPaths() {
		t.Error("expected success")
	}
	// This is a change detector on internal/main.go.
	want = []*Goroutine{
		{
			Signature: Signature{
				State: "running",
				Stack: Stack{
					Calls: []Call{
						newCallLocal(
							"main.panicint",
							Args{Values: []Arg{{Value: 42}}},
							pathJoin(ppDir, "main.go"),