(t *testing.T)
| 58 | } |
| 59 | |
| 60 | func Test_executable_relative(t *testing.T) { |
| 61 | testExe, err := os.Executable() |
| 62 | if err != nil { |
| 63 | t.Fatal(err) |
| 64 | } |
| 65 | |
| 66 | testExeName := filepath.Base(testExe) |
| 67 | |
| 68 | // Create 3 extra PATH entries that each contain an executable with the same name as the running test |
| 69 | // process. The first is a relative symlink, but to an unrelated executable, the second is a relative |
| 70 | // symlink to our test process and thus represents the result we want, and the third one is an unrelated |
| 71 | // executable. |
| 72 | dir := t.TempDir() |
| 73 | bin1 := filepath.Join(dir, "bin1") |
| 74 | bin1Exe := filepath.Join(bin1, testExeName) |
| 75 | bin2 := filepath.Join(dir, "bin2") |
| 76 | bin2Exe := filepath.Join(bin2, testExeName) |
| 77 | bin3 := filepath.Join(dir, "bin3") |
| 78 | bin3Exe := filepath.Join(bin3, testExeName) |
| 79 | |
| 80 | if err := os.MkdirAll(bin1, 0755); err != nil { |
| 81 | t.Fatal(err) |
| 82 | } |
| 83 | if err := os.MkdirAll(bin2, 0755); err != nil { |
| 84 | t.Fatal(err) |
| 85 | } |
| 86 | if err := os.MkdirAll(bin3, 0755); err != nil { |
| 87 | t.Fatal(err) |
| 88 | } |
| 89 | |
| 90 | if f, err := os.OpenFile(bin3Exe, os.O_CREATE, 0755); err == nil { |
| 91 | f.Close() |
| 92 | } else { |
| 93 | t.Fatal(err) |
| 94 | } |
| 95 | bin2Rel, err := filepath.Rel(bin2, testExe) |
| 96 | if err != nil { |
| 97 | t.Fatal(err) |
| 98 | } |
| 99 | if err := os.Symlink(bin2Rel, bin2Exe); err != nil { |
| 100 | t.Fatal(err) |
| 101 | } |
| 102 | bin1Rel, err := filepath.Rel(bin1, bin3Exe) |
| 103 | if err != nil { |
| 104 | t.Fatal(err) |
| 105 | } |
| 106 | if err := os.Symlink(bin1Rel, bin1Exe); err != nil { |
| 107 | t.Fatal(err) |
| 108 | } |
| 109 | |
| 110 | oldPath := os.Getenv("PATH") |
| 111 | t.Setenv("PATH", strings.Join([]string{bin1, bin2, bin3, oldPath}, string(os.PathListSeparator))) |
| 112 | |
| 113 | if got := executable(""); got != bin2Exe { |
| 114 | t.Errorf("executable() = %q, want %q", got, bin2Exe) |
| 115 | } |
| 116 | } |
| 117 |
nothing calls this directly
no test coverage detected