go/src/cmd/internal/test2json/test2json_test.go

var update …

func TestGolden(t *testing.T) { … }

// writeAndKill writes b to w and then fills b with Zs.
// The filling makes sure that if w is holding onto b for
// future use, that future use will have obviously wrong data.
func writeAndKill(w io.Writer, b []byte) { … }

// diffJSON diffs the stream we have against the stream we want
// and fails the test with a useful message if they don't match.
func diffJSON(t *testing.T, have, want []byte) { … }

func TestTrimUTF8(t *testing.T) { … }