59740d8985
Ensures that the client can handle cases where the registry ignores content length. Signed-off-by: Derek McGowan <derek@mcgstyle.net>
95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
/*
|
|
Copyright The containerd 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 docker
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"math/rand"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"testing"
|
|
)
|
|
|
|
func TestFetcherOpen(t *testing.T) {
|
|
content := make([]byte, 128)
|
|
rand.New(rand.NewSource(1)).Read(content)
|
|
start := 0
|
|
|
|
s := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
|
|
if start > 0 {
|
|
rw.Header().Set("content-range", fmt.Sprintf("bytes %d-127/128", start))
|
|
}
|
|
rw.Header().Set("content-length", fmt.Sprintf("%d", len(content[start:])))
|
|
rw.Write(content[start:])
|
|
}))
|
|
defer s.Close()
|
|
|
|
f := dockerFetcher{&dockerBase{
|
|
client: s.Client(),
|
|
}}
|
|
ctx := context.Background()
|
|
|
|
checkReader := func(o int64) {
|
|
t.Helper()
|
|
rc, err := f.open(ctx, s.URL, "", o)
|
|
if err != nil {
|
|
t.Fatalf("failed to open: %+v", err)
|
|
}
|
|
b, err := ioutil.ReadAll(rc)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
expected := content[o:]
|
|
if len(b) != len(expected) {
|
|
t.Errorf("unexpected length %d, expected %d", len(b), len(expected))
|
|
return
|
|
}
|
|
for i, c := range expected {
|
|
if b[i] != c {
|
|
t.Errorf("unexpected byte %x at %d, expected %x", b[i], i, c)
|
|
return
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
checkReader(0)
|
|
|
|
// Test server ignores content range
|
|
checkReader(25)
|
|
|
|
// Use content range on server
|
|
start = 20
|
|
checkReader(20)
|
|
|
|
// Check returning just last byte and no bytes
|
|
start = 127
|
|
checkReader(127)
|
|
start = 128
|
|
checkReader(128)
|
|
|
|
// Check that server returning a different content range
|
|
// then requested errors
|
|
start = 30
|
|
_, err := f.open(ctx, s.URL, "", 20)
|
|
if err == nil {
|
|
t.Fatal("expected error opening with invalid server response")
|
|
}
|
|
}
|