95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package ioutil
|
|
|
|
import (
|
|
"bytes"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
type writeCloser struct {
|
|
buf bytes.Buffer
|
|
closed bool
|
|
}
|
|
|
|
func (wc *writeCloser) Write(p []byte) (int, error) {
|
|
return wc.buf.Write(p)
|
|
}
|
|
|
|
func (wc *writeCloser) Close() error {
|
|
wc.closed = true
|
|
return nil
|
|
}
|
|
|
|
func TestEmptyWriterGroup(t *testing.T) {
|
|
wg := NewWriterGroup()
|
|
_, err := wg.Write([]byte("test"))
|
|
assert.Error(t, err)
|
|
}
|
|
|
|
func TestClosedWriterGroup(t *testing.T) {
|
|
wg := NewWriterGroup()
|
|
wc := &writeCloser{}
|
|
key, data := "test key", "test data"
|
|
|
|
err := wg.Add(key, wc)
|
|
assert.NoError(t, err)
|
|
|
|
n, err := wg.Write([]byte(data))
|
|
assert.Equal(t, len(data), n)
|
|
assert.Equal(t, data, wc.buf.String())
|
|
assert.NoError(t, err)
|
|
|
|
wg.Close()
|
|
assert.True(t, wc.closed)
|
|
|
|
err = wg.Add(key, &writeCloser{})
|
|
assert.Error(t, err)
|
|
|
|
_, err = wg.Write([]byte(data))
|
|
assert.Error(t, err)
|
|
}
|
|
|
|
func TestAddRemoveWriter(t *testing.T) {
|
|
wg := NewWriterGroup()
|
|
wc1, wc2 := &writeCloser{}, &writeCloser{}
|
|
key1, key2 := "test key 1", "test key 2"
|
|
|
|
err := wg.Add(key1, wc1)
|
|
assert.NoError(t, err)
|
|
_, err = wg.Write([]byte("test data 1"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, "test data 1", wc1.buf.String())
|
|
|
|
err = wg.Add(key2, wc2)
|
|
assert.NoError(t, err)
|
|
_, err = wg.Write([]byte("test data 2"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, "test data 1test data 2", wc1.buf.String())
|
|
assert.Equal(t, "test data 2", wc2.buf.String())
|
|
|
|
wg.Remove(key1)
|
|
_, err = wg.Write([]byte("test data 3"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, "test data 1test data 2", wc1.buf.String())
|
|
assert.Equal(t, "test data 2test data 3", wc2.buf.String())
|
|
|
|
wg.Close()
|
|
}
|