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https://github.com/ceph/ceph-csi.git
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53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
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/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package temptest
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import (
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"bytes"
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"errors"
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"io"
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)
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// FakeFile is an implementation of a WriteCloser, that records what has
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// been written in the file (in a bytes.Buffer) and if the file has been
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// closed.
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type FakeFile struct {
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Buffer bytes.Buffer
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Closed bool
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}
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var _ io.WriteCloser = &FakeFile{}
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// Write appends the contents of p to the Buffer. If the file has
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// already been closed, an error is returned.
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func (f *FakeFile) Write(p []byte) (n int, err error) {
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if f.Closed {
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return 0, errors.New("can't write to closed FakeFile")
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}
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return f.Buffer.Write(p)
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}
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// Close records that the file has been closed. If the file has already
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// been closed, an error is returned.
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func (f *FakeFile) Close() error {
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if f.Closed {
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return errors.New("FakeFile was closed multiple times")
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}
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f.Closed = true
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return nil
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}
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