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// Copyright 2020 Northern.tech AS
//
// 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 artifact
import (
"archive/tar"
"bytes"
"io"
"io/ioutil"
"os"
"testing"
"github.com/stretchr/testify/assert"
)
func TestTarFile(t *testing.T) {
buf := bytes.NewBuffer(nil)
tw := tar.NewWriter(buf)
fa := NewTarWriterFile(tw)
err := fa.Write(nil, "my_file")
assert.Error(t, err)
f, err := ioutil.TempFile("", "test")
assert.NoError(t, err)
assert.NotNil(t, f)
defer os.Remove(f.Name())
_, err = f.WriteString("some data")
assert.NoError(t, err)
_, err = f.Seek(0, 0)
assert.NoError(t, err)
err = fa.Write(f, "my_file")
assert.NoError(t, err)
err = tw.Close()
assert.NoError(t, err)
tr := tar.NewReader(buf)
for {
hdr, err := tr.Next()
if err == io.EOF {
break
}
assert.NoError(t, err)
assert.Equal(t, "my_file", hdr.Name)
data := bytes.NewBuffer(nil)
n, err := io.Copy(data, tr)
assert.NoError(t, err)
assert.Len(t, "some data", int(n))
assert.Equal(t, "some data", data.String())
}
}
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