libgo/misc/cgo/testsanitizers/msan_test.go

   1 // Copyright 2017 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 sanitizers_test
   6
   7 import (
   8         "strings"
   9         "testing"
  10 )
  11
  12 func TestMSAN(t *testing.T) {
  13         t.Parallel()
  14         requireOvercommit(t)
  15         config := configure("memory")
  16         config.skipIfCSanitizerBroken(t)
  17
  18         mustRun(t, config.goCmd("build", "std"))
  19
  20         cases := []struct {
  21                 src     string
  22                 wantErr bool
  23         }{
  24                 {src: "msan.go"},
  25                 {src: "msan2.go"},
  26                 {src: "msan2_cmsan.go"},
  27                 {src: "msan3.go"},
  28                 {src: "msan4.go"},
  29                 {src: "msan5.go"},
  30                 {src: "msan_fail.go", wantErr: true},
  31         }
  32         for _, tc := range cases {
  33                 tc := tc
  34                 name := strings.TrimSuffix(tc.src, ".go")
  35                 t.Run(name, func(t *testing.T) {
  36                         t.Parallel()
  37
  38                         dir := newTempDir(t)
  39                         defer dir.RemoveAll(t)
  40
  41                         outPath := dir.Join(name)
  42                         mustRun(t, config.goCmd("build", "-o", outPath, srcPath(tc.src)))
  43
  44                         cmd := hangProneCmd(outPath)
  45                         if tc.wantErr {
  46                                 out, err := cmd.CombinedOutput()
  47                                 if err != nil {
  48                                         return
  49                                 }
  50                                 t.Fatalf("%#q exited without error; want MSAN failure\n%s", strings.Join(cmd.Args, " "), out)
  51                         }
  52                         mustRun(t, cmd)
  53                 })
  54         }
  55 }