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Merge pull request #185 from TBBle/GetFileStandardInfo
Implement `winio.GetFileStandardInfo`
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| package winio | ||
|
|
||
| import ( | ||
| "io/ioutil" | ||
| "os" | ||
| "testing" | ||
|
|
||
| "golang.org/x/sys/windows" | ||
| ) | ||
|
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| // Checks if current matches expected. Note that AllocationSize is filesystem-specific, | ||
| // so we check that the current.AllocationSize is >= expected.AllocationSize. | ||
| // https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-fscc/5afa7f66-619c-48f3-955f-68c4ece704ae | ||
| func checkFileStandardInfo(t *testing.T, current, expected *FileStandardInfo) { | ||
| if current.AllocationSize < expected.AllocationSize { | ||
| t.Fatalf("FileStandardInfo unexpectedly had AllocationSize %d, expecting >=%d", current.AllocationSize, expected.AllocationSize) | ||
| } | ||
|
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| if current.EndOfFile != expected.EndOfFile { | ||
| t.Fatalf("FileStandardInfo unexpectedly had EndOfFile %d, expecting %d", current.EndOfFile, expected.EndOfFile) | ||
| } | ||
|
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| if current.NumberOfLinks != expected.NumberOfLinks { | ||
| t.Fatalf("FileStandardInfo unexpectedly had NumberOfLinks %d, expecting %d", current.NumberOfLinks, expected.NumberOfLinks) | ||
| } | ||
|
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| if current.DeletePending != expected.DeletePending { | ||
| if current.DeletePending { | ||
| t.Fatalf("FileStandardInfo unexpectedly DeletePending") | ||
| } else { | ||
| t.Fatalf("FileStandardInfo unexpectedly not DeletePending") | ||
| } | ||
| } | ||
|
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||
| if current.Directory != expected.Directory { | ||
| if current.Directory { | ||
| t.Fatalf("FileStandardInfo unexpectedly Directory") | ||
| } else { | ||
| t.Fatalf("FileStandardInfo unexpectedly not Directory") | ||
| } | ||
| } | ||
| } | ||
|
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| func TestGetFileStandardInfo_File(t *testing.T) { | ||
| f, err := ioutil.TempFile("", "tst") | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| defer f.Close() | ||
| defer os.Remove(f.Name()) | ||
|
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| expectedFileInfo := &FileStandardInfo{ | ||
| AllocationSize: 0, | ||
| EndOfFile: 0, | ||
| NumberOfLinks: 1, | ||
| DeletePending: false, | ||
| Directory: false, | ||
| } | ||
|
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| info, err := GetFileStandardInfo(f) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| checkFileStandardInfo(t, info, expectedFileInfo) | ||
|
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| bytesWritten, err := f.Write([]byte("0123456789")) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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| expectedFileInfo.EndOfFile = int64(bytesWritten) | ||
| expectedFileInfo.AllocationSize = int64(bytesWritten) | ||
|
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| info, err = GetFileStandardInfo(f) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| checkFileStandardInfo(t, info, expectedFileInfo) | ||
|
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| linkName := f.Name() + ".link" | ||
|
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| if err = os.Link(f.Name(), linkName); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| defer os.Remove(linkName) | ||
|
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| expectedFileInfo.NumberOfLinks = 2 | ||
|
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| info, err = GetFileStandardInfo(f) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| checkFileStandardInfo(t, info, expectedFileInfo) | ||
|
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| os.Remove(linkName) | ||
|
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| expectedFileInfo.NumberOfLinks = 1 | ||
|
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| info, err = GetFileStandardInfo(f) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| checkFileStandardInfo(t, info, expectedFileInfo) | ||
| } | ||
|
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| func TestGetFileStandardInfo_Directory(t *testing.T) { | ||
| tempDir, err := ioutil.TempDir("", "tst") | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| defer os.RemoveAll(tempDir) | ||
|
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| // os.Open returns the Search Handle, not the Directory Handle | ||
| // See https://github.com/golang/go/issues/13738 | ||
| f, err := OpenForBackup(tempDir, windows.GENERIC_READ, 0, windows.OPEN_EXISTING) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| defer f.Close() | ||
|
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| expectedFileInfo := &FileStandardInfo{ | ||
| AllocationSize: 0, | ||
| EndOfFile: 0, | ||
| NumberOfLinks: 1, | ||
| DeletePending: false, | ||
| Directory: true, | ||
| } | ||
|
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| info, err := GetFileStandardInfo(f) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| checkFileStandardInfo(t, info, expectedFileInfo) | ||
| } |
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