50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
/*
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Copyright The containerd 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 server
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import (
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"bytes"
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"testing"
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cioutil "github.com/containerd/containerd/pkg/ioutil"
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"github.com/stretchr/testify/assert"
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)
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func TestCWWrite(t *testing.T) {
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var buf bytes.Buffer
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cw := &cappedWriter{w: cioutil.NewNopWriteCloser(&buf), remain: 10}
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n, err := cw.Write([]byte("hello"))
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assert.NoError(t, err)
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assert.Equal(t, 5, n)
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n, err = cw.Write([]byte("helloworld"))
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assert.Equal(t, []byte("hellohello"), buf.Bytes(), "partial write")
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assert.Equal(t, 5, n)
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assert.ErrorIs(t, err, errNoRemain)
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_, err = cw.Write([]byte("world"))
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assert.ErrorIs(t, err, errNoRemain)
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}
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func TestCWClose(t *testing.T) {
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var buf bytes.Buffer
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cw := &cappedWriter{w: cioutil.NewNopWriteCloser(&buf), remain: 5}
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err := cw.Close()
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assert.NoError(t, err)
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}
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