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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| // Copyright (c) The Test Authors | ||
| // SPDX-License-Identifier: MPL-2.0 | ||
|
|
||
| package util | ||
|
|
||
| import ( | ||
| "io/fs" | ||
| "os" | ||
| ) | ||
|
|
||
| type T interface { | ||
| TempDir() string | ||
| Helper() | ||
| Errorf(format string, args ...any) | ||
| Fatalf(format string, args ...any) | ||
| Cleanup(func()) | ||
| } | ||
|
|
||
| type TempFileSettings struct { | ||
| data []byte | ||
| mode *fs.FileMode | ||
| namePattern string | ||
| path *string | ||
| } | ||
|
|
||
| type TempFileSetting func(s *TempFileSettings) | ||
|
|
||
| // Pattern sets the filename to pattern with a random string appended. | ||
| // If pattern contains a '*', the last '*' will be replaced by the | ||
| // random string. | ||
| func Pattern(pattern string) TempFileSetting { | ||
| return func(s *TempFileSettings) { | ||
| s.namePattern = pattern | ||
| } | ||
| } | ||
|
|
||
| // Mode sets the temporary file's mode. | ||
| func Mode(mode fs.FileMode) TempFileSetting { | ||
| return func(s *TempFileSettings) { | ||
| s.mode = &mode | ||
| } | ||
| } | ||
|
|
||
| // StringData writes data to the temporary file. | ||
| func StringData(data string) TempFileSetting { | ||
| return func(s *TempFileSettings) { | ||
| s.data = []byte(data) | ||
| } | ||
| } | ||
|
|
||
| // ByteData writes data to the temporary file. | ||
| func ByteData(data []byte) TempFileSetting { | ||
| return func(s *TempFileSettings) { | ||
| s.data = data | ||
| } | ||
| } | ||
|
|
||
| // Path specifies a directory path to contain the temporary file. | ||
| // A temporary file created in a custom directory will still be deleted | ||
| // after the test runs, though the directory may not. | ||
| func Path(path string) TempFileSetting { | ||
| return func(s *TempFileSettings) { | ||
| s.path = &path | ||
| } | ||
| } | ||
|
|
||
| // TempFile creates a temporary file that is deleted after the test is | ||
| // completed. If the file cannot be deleted, the test fails with a message | ||
| // containing its path. TempFile creates a new file every time it is called. | ||
| // By default, each file thus created is in a unique directory as | ||
| // created by (*testing.T).TempDir(); this directory is also deleted | ||
| // after the test is completed. | ||
| func TempFile(t T, settings ...TempFileSetting) (path string) { | ||
| t.Helper() | ||
| var allSettings TempFileSettings | ||
| for _, setting := range settings { | ||
| setting(&allSettings) | ||
| } | ||
| if allSettings.mode == nil { | ||
| allSettings.mode = new(fs.FileMode) | ||
| *allSettings.mode = 0600 | ||
| } | ||
| if allSettings.path == nil { | ||
| allSettings.path = new(string) | ||
| *allSettings.path = t.TempDir() | ||
| } | ||
|
|
||
| var err error | ||
| crash := func() { | ||
| t.Fatalf("%s: %v", "TempFile", err) | ||
| } | ||
| file, err := os.CreateTemp(*allSettings.path, allSettings.namePattern) | ||
| if err != nil { | ||
| crash() | ||
| } | ||
| path = file.Name() | ||
| t.Cleanup(func() { | ||
| err := os.Remove(path) | ||
| if err != nil { | ||
| t.Fatalf("failed to clean up temp file: %s", path) | ||
| } | ||
| }) | ||
| _, err = file.Write(allSettings.data) | ||
| if err != nil { | ||
| file.Close() | ||
| crash() | ||
| } | ||
| err = file.Close() | ||
| if err != nil { | ||
| crash() | ||
| } | ||
| err = os.Chmod(path, *allSettings.mode) | ||
| if err != nil { | ||
| crash() | ||
| } | ||
| return file.Name() | ||
| } |
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