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38 lines
820 B
Go
38 lines
820 B
Go
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package loggerutils // import "github.com/docker/docker/daemon/logger/loggerutils"
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import (
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"io"
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"os"
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"testing"
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"gotest.tools/v3/assert"
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)
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func TestHandleDecoderErr(t *testing.T) {
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f, err := os.CreateTemp("", t.Name())
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assert.NilError(t, err)
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defer os.Remove(f.Name())
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_, err = f.Write([]byte("hello"))
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assert.NilError(t, err)
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pos, err := f.Seek(0, io.SeekCurrent)
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assert.NilError(t, err)
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assert.Assert(t, pos != 0)
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dec := &testDecoder{}
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// Simulate "turncate" case, where the file was bigger before.
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fl := &follow{file: f, dec: dec, oldSize: 100}
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err = fl.handleDecodeErr(io.EOF)
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assert.NilError(t, err)
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// handleDecodeErr seeks to zero.
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pos, err = f.Seek(0, io.SeekCurrent)
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assert.NilError(t, err)
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assert.Equal(t, int64(0), pos)
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// Reset is called.
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assert.Equal(t, 1, dec.resetCount)
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}
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