mirror of
https://github.com/JetSetIlly/Gopher2600.git
synced 2024-05-20 13:48:02 -04:00
43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
// This file is part of Gopher2600.
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//
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// Gopher2600 is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Gopher2600 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Gopher2600. If not, see <https://www.gnu.org/licenses/>.
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package test
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// Writer is an implementation of the io.Writer interface. It should be used to
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// capture output and to compare with predefined strings.
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type Writer struct {
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buffer []byte
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}
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func (tw *Writer) Write(p []byte) (n int, err error) {
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tw.buffer = append(tw.buffer, p...)
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return len(p), nil
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}
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// clear string empties the buffer.
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func (tw *Writer) Clear() {
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tw.buffer = tw.buffer[:0]
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}
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// Compare buffered output with predefined/example string.
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func (tw *Writer) Compare(s string) bool {
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return s == string(tw.buffer)
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}
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// implements Stringer interface.
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func (tw *Writer) String() string {
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return string(tw.buffer)
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}
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