github.com/mtsmfm/go/src@v0.0.0-20221020090648-44bdcb9f8fde/runtime/lockrank_test.go (about) 1 // Copyright 2022 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package runtime_test 6 7 import ( 8 "bytes" 9 "internal/testenv" 10 "os" 11 "os/exec" 12 "testing" 13 ) 14 15 // Test that the generated code for the lock rank graph is up-to-date. 16 func TestLockRankGenerated(t *testing.T) { 17 testenv.MustHaveGoRun(t) 18 want, err := testenv.CleanCmdEnv(exec.Command(testenv.GoToolPath(t), "run", "mklockrank.go")).CombinedOutput() 19 if err != nil { 20 t.Fatal(err) 21 } 22 got, err := os.ReadFile("lockrank.go") 23 if err != nil { 24 t.Fatal(err) 25 } 26 if !bytes.Equal(want, got) { 27 t.Fatalf("lockrank.go is out of date. Please run go generate.") 28 } 29 }