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/*
Copyright The ORAS 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 remote
import (
"errors"
"net/http"
"net/url"
"testing"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"oras.land/oras-go/v2/errdef"
)
func Test_parseLink(t *testing.T) {
tests := []struct {
name string
url string
header string
want string
wantErr bool
}{
{
name: "catalog",
url: "https://localhost:5000/v2/_catalog",
header: `</v2/_catalog?last=alpine&n=1>; rel="next"`,
want: "https://localhost:5000/v2/_catalog?last=alpine&n=1",
},
{
name: "list tag",
url: "https://localhost:5000/v2/hello-world/tags/list",
header: `</v2/hello-world/tags/list?last=latest&n=1>; rel="next"`,
want: "https://localhost:5000/v2/hello-world/tags/list?last=latest&n=1",
},
{
name: "other domain",
url: "https://localhost:5000/v2/_catalog",
header: `<https://localhost:5001/v2/_catalog?last=alpine&n=1>; rel="next"`,
want: "https://localhost:5001/v2/_catalog?last=alpine&n=1",
},
{
name: "invalid header",
url: "https://localhost:5000/v2/_catalog",
header: `</v2/_catalog`,
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
url, err := url.Parse(tt.url)
if err != nil {
t.Errorf("fail to parse url in the test case: %v", err)
}
resp := &http.Response{
Request: &http.Request{
URL: url,
},
Header: http.Header{
"Link": []string{tt.header},
},
}
got, err := parseLink(resp)
if (err != nil) != tt.wantErr {
t.Errorf("parseLink() error = %v, wantErr %v", err, tt.wantErr)
return
}
if got != tt.want {
t.Errorf("parseLink() = %v, want %v", got, tt.want)
}
})
}
}
func Test_limitSize(t *testing.T) {
tests := []struct {
name string
desc ocispec.Descriptor
n int64
wantErr error
}{
{
name: "size within specified limit",
desc: ocispec.Descriptor{
Size: 1,
},
n: 2,
wantErr: nil,
},
{
name: "size equals specified limit",
desc: ocispec.Descriptor{
Size: 1,
},
n: 1,
wantErr: nil,
},
{
name: "size exceeds specified limit",
desc: ocispec.Descriptor{
Size: 2,
},
n: 1,
wantErr: errdef.ErrSizeExceedsLimit,
},
{
name: "size within default limit",
desc: ocispec.Descriptor{
Size: 4*1024*1024 - 1, // 4 MiB - 1
},
n: 0,
wantErr: nil,
},
{
name: "size equals default limit",
desc: ocispec.Descriptor{
Size: 4 * 1024 * 1024, // 4 MiB
},
n: 0,
wantErr: nil,
},
{
name: "size exceeds default limit",
desc: ocispec.Descriptor{
Size: 4*1024*1024 + 1, // 4 MiB + 1
},
n: 0,
wantErr: errdef.ErrSizeExceedsLimit,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if err := limitSize(tt.desc, tt.n); !errors.Is(err, tt.wantErr) {
t.Errorf("limitSize() error = %v, wantErr %v", err, tt.wantErr)
}
})
}
}
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