| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package gc_test |
| |
| import ( |
| "bytes" |
| "internal/testenv" |
| "io/ioutil" |
| "os/exec" |
| "testing" |
| ) |
| |
| func TestBuiltin(t *testing.T) { |
| testenv.MustHaveGoRun(t) |
| |
| old, err := ioutil.ReadFile("builtin.go") |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| new, err := exec.Command("go", "run", "mkbuiltin.go", "-stdout").Output() |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| if !bytes.Equal(old, new) { |
| t.Fatal("builtin.go out of date; run mkbuiltin.go") |
| } |
| } |
