37 lines
734 B
Go
37 lines
734 B
Go
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package serialport
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import "fmt"
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type nullReadWriteCloser struct {
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written []byte
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simulateReadErr bool
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simulateWriteErr bool
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simulateCloseErr bool
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}
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func newNullReadWriteCloser() *nullReadWriteCloser {
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return &nullReadWriteCloser{}
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}
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func (rwc *nullReadWriteCloser) Write(data []byte) (int, error) {
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if rwc.simulateWriteErr {
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return 0, fmt.Errorf("write error")
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}
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rwc.written = append(rwc.written, data...)
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return len(data), nil
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}
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func (rwc *nullReadWriteCloser) Read(p []byte) (int, error) {
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if rwc.simulateReadErr {
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return 0, fmt.Errorf("read error")
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}
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return len(p), nil
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}
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func (rwc *nullReadWriteCloser) Close() error {
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if rwc.simulateCloseErr {
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return fmt.Errorf("close error")
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}
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return nil
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}
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