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111 lines
3.0 KiB
111 lines
3.0 KiB
/*
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Copyright The Helm 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 loader
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import (
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"archive/tar"
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"bytes"
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"compress/gzip"
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"testing"
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)
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func TestLoadArchiveFiles(t *testing.T) {
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tcs := []struct {
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name string
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generate func(w *tar.Writer)
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check func(t *testing.T, files []*BufferedFile, err error)
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}{
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{
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name: "empty input should return no files",
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generate: func(w *tar.Writer) {},
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check: func(t *testing.T, files []*BufferedFile, err error) {
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if err.Error() != "no files in chart archive" {
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t.Fatalf(`expected "no files in chart archive", got [%#v]`, err)
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}
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},
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},
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{
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name: "should ignore files with XGlobalHeader type",
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generate: func(w *tar.Writer) {
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// simulate the presence of a `pax_global_header` file like you would get when
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// processing a GitHub release archive.
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_ = w.WriteHeader(&tar.Header{
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Typeflag: tar.TypeXGlobalHeader,
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Name: "pax_global_header",
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})
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// we need to have at least one file, otherwise we'll get the "no files in chart archive" error
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_ = w.WriteHeader(&tar.Header{
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Typeflag: tar.TypeReg,
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Name: "dir/empty",
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})
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},
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check: func(t *testing.T, files []*BufferedFile, err error) {
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if err != nil {
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t.Fatalf(`got unwanted error [%#v] for tar file with pax_global_header content`, err)
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}
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if len(files) != 1 {
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t.Fatalf(`expected to get one file but got [%v]`, files)
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}
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},
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},
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{
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name: "should ignore files with TypeXHeader type",
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generate: func(w *tar.Writer) {
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// simulate the presence of a `pax_header` file like you might get when
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// processing a GitHub release archive.
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_ = w.WriteHeader(&tar.Header{
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Typeflag: tar.TypeXHeader,
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Name: "pax_header",
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})
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// we need to have at least one file, otherwise we'll get the "no files in chart archive" error
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_ = w.WriteHeader(&tar.Header{
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Typeflag: tar.TypeReg,
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Name: "dir/empty",
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})
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},
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check: func(t *testing.T, files []*BufferedFile, err error) {
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if err != nil {
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t.Fatalf(`got unwanted error [%#v] for tar file with pax_header content`, err)
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}
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if len(files) != 1 {
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t.Fatalf(`expected to get one file but got [%v]`, files)
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}
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},
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},
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}
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for _, tc := range tcs {
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t.Run(tc.name, func(t *testing.T) {
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buf := &bytes.Buffer{}
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gzw := gzip.NewWriter(buf)
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tw := tar.NewWriter(gzw)
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tc.generate(tw)
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_ = tw.Close()
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_ = gzw.Close()
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files, err := LoadArchiveFiles(buf)
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tc.check(t, files, err)
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})
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}
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}
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