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internal/zstd: reset reader buffer
Reset r.buffer on Reset to avoid subsequent Read calls observing previously decoded data. For #62513
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parent
5351bcf822
commit
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@ -104,7 +104,7 @@ func (r *Reader) Reset(input io.Reader) {
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r.frameSizeUnknown = false
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r.remainingFrameSize = 0
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r.blockOffset = 0
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// buffer
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r.buffer = r.buffer[:0]
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r.off = 0
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// repeatedOffset1
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// repeatedOffset2
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@ -127,6 +127,26 @@ func TestSamples(t *testing.T) {
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}
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}
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func TestReset(t *testing.T) {
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input := strings.NewReader("")
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r := NewReader(input)
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for _, test := range tests {
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test := test
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t.Run(test.name, func(t *testing.T) {
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input.Reset(test.compressed)
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r.Reset(input)
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got, err := io.ReadAll(r)
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if err != nil {
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t.Fatal(err)
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}
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gotstr := string(got)
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if gotstr != test.uncompressed {
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t.Errorf("got %q want %q", gotstr, test.uncompressed)
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}
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})
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}
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}
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var (
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bigDataOnce sync.Once
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bigDataBytes []byte
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