80bc32f069
Using a bytes buffer for this test increases the memory usage on Windows to over 3 GB. Using a temporary file as a destination for the image keeps memory usage at a reasonable level. Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
96 lines
2.0 KiB
Go
96 lines
2.0 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 client
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import (
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"archive/tar"
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"io"
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"io/ioutil"
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"os"
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"testing"
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. "github.com/containerd/containerd"
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"github.com/containerd/containerd/images/archive"
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"github.com/containerd/containerd/platforms"
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)
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// TestExport exports testImage as a tar stream
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func TestExport(t *testing.T) {
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if testing.Short() {
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t.Skip()
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}
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ctx, cancel := testContext(t)
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defer cancel()
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client, err := New(address)
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if err != nil {
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t.Fatal(err)
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}
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defer client.Close()
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_, err = client.Fetch(ctx, testImage)
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if err != nil {
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t.Fatal(err)
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}
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dstFile, err := ioutil.TempFile("", "export-import-test")
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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dstFile.Close()
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os.Remove(dstFile.Name())
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}()
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err = client.Export(ctx, dstFile, archive.WithPlatform(platforms.Default()), archive.WithImage(client.ImageService(), testImage))
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if err != nil {
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t.Fatal(err)
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}
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// Seet to begining of file before passing it to assertOCITar()
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dstFile.Seek(0, 0)
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assertOCITar(t, dstFile)
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}
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func assertOCITar(t *testing.T, r io.Reader) {
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// TODO: add more assertion
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tr := tar.NewReader(r)
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foundOCILayout := false
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foundIndexJSON := false
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for {
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h, err := tr.Next()
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if err == io.EOF {
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break
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}
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if err != nil {
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t.Error(err)
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continue
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}
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if h.Name == "oci-layout" {
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foundOCILayout = true
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}
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if h.Name == "index.json" {
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foundIndexJSON = true
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}
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}
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if !foundOCILayout {
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t.Error("oci-layout not found")
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}
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if !foundIndexJSON {
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t.Error("index.json not found")
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}
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}
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