53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
/*
|
|
Copyright The containerd 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 server
|
|
|
|
import (
|
|
"bytes"
|
|
"testing"
|
|
|
|
cioutil "github.com/containerd/containerd/pkg/ioutil"
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestCWWrite(t *testing.T) {
|
|
var buf bytes.Buffer
|
|
cw := &cappedWriter{w: cioutil.NewNopWriteCloser(&buf), remain: 10}
|
|
|
|
n, err := cw.Write([]byte("hello"))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 5, n)
|
|
|
|
n, err = cw.Write([]byte("helloworld"))
|
|
assert.NoError(t, err, "no errors even it hits the cap")
|
|
assert.Equal(t, 10, n, "no indication of partial write")
|
|
assert.True(t, cw.isFull())
|
|
assert.Equal(t, []byte("hellohello"), buf.Bytes(), "the underlying writer is capped")
|
|
|
|
_, err = cw.Write([]byte("world"))
|
|
assert.NoError(t, err)
|
|
assert.True(t, cw.isFull())
|
|
assert.Equal(t, []byte("hellohello"), buf.Bytes(), "the underlying writer is capped")
|
|
}
|
|
|
|
func TestCWClose(t *testing.T) {
|
|
var buf bytes.Buffer
|
|
cw := &cappedWriter{w: cioutil.NewNopWriteCloser(&buf), remain: 5}
|
|
err := cw.Close()
|
|
assert.NoError(t, err)
|
|
}
|