github.com/uber/kraken@v0.1.4/lib/backend/registrybackend/tagclient_test.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package registrybackend
    15  
    16  import (
    17  	"bytes"
    18  	"fmt"
    19  	"io"
    20  	"net/http"
    21  	"strings"
    22  	"testing"
    23  
    24  	"github.com/pressly/chi"
    25  	"github.com/stretchr/testify/require"
    26  	"github.com/uber/kraken/core"
    27  	"github.com/uber/kraken/lib/backend/backenderrors"
    28  	"github.com/uber/kraken/utils/dockerutil"
    29  	"github.com/uber/kraken/utils/testutil"
    30  )
    31  
    32  func TestTagDownloadSuccess(t *testing.T) {
    33  	require := require.New(t)
    34  
    35  	imageConfig := core.NewBlobFixture()
    36  	layer1 := core.NewBlobFixture()
    37  	layer2 := core.NewBlobFixture()
    38  	digest, manifest := dockerutil.ManifestFixture(
    39  		imageConfig.Digest, layer1.Digest, layer2.Digest)
    40  
    41  	tag := core.TagFixture()
    42  	namespace := strings.Split(tag, ":")[0]
    43  
    44  	r := chi.NewRouter()
    45  	r.Get(fmt.Sprintf("/v2/%s/manifests/{tag}", namespace), func(w http.ResponseWriter, req *http.Request) {
    46  		w.Header().Set("Content-Length", fmt.Sprintf("%d", len(manifest)))
    47  		w.Header().Set("Docker-Content-Digest", digest.String())
    48  		_, err := io.Copy(w, bytes.NewReader(manifest))
    49  		require.NoError(err)
    50  	})
    51  	r.Head(fmt.Sprintf("/v2/%s/manifests/{tag}", namespace), func(w http.ResponseWriter, req *http.Request) {
    52  		w.Header().Set("Content-Length", fmt.Sprintf("%d", len(manifest)))
    53  		w.Header().Set("Docker-Content-Digest", digest.String())
    54  		_, err := io.Copy(w, bytes.NewReader(manifest))
    55  		require.NoError(err)
    56  	})
    57  	addr, stop := testutil.StartServer(r)
    58  	defer stop()
    59  
    60  	config := newTestConfig(addr)
    61  	client, err := NewTagClient(config)
    62  	require.NoError(err)
    63  
    64  	info, err := client.Stat(tag, tag)
    65  	require.NoError(err)
    66  	require.Equal(int64(len(manifest)), info.Size)
    67  
    68  	var b bytes.Buffer
    69  	require.NoError(client.Download(tag, tag, &b))
    70  	require.Equal(digest.String(), string(b.Bytes()))
    71  }
    72  
    73  func TestTagDownloadFileNotFound(t *testing.T) {
    74  	require := require.New(t)
    75  
    76  	tag := core.TagFixture()
    77  	namespace := strings.Split(tag, ":")[0]
    78  
    79  	r := chi.NewRouter()
    80  	r.Get(fmt.Sprintf("/v2/%s/manifests/{tag}", namespace), func(w http.ResponseWriter, req *http.Request) {
    81  		w.WriteHeader(http.StatusNotFound)
    82  		w.Write([]byte("file not found"))
    83  	})
    84  	r.Head(fmt.Sprintf("/v2/%s/manifests/{tag}", namespace), func(w http.ResponseWriter, req *http.Request) {
    85  		w.WriteHeader(http.StatusNotFound)
    86  	})
    87  	addr, stop := testutil.StartServer(r)
    88  	defer stop()
    89  
    90  	config := newTestConfig(addr)
    91  	client, err := NewTagClient(config)
    92  	require.NoError(err)
    93  
    94  	_, err = client.Stat(tag, tag)
    95  	require.Equal(backenderrors.ErrBlobNotFound, err)
    96  
    97  	var b bytes.Buffer
    98  	require.Equal(backenderrors.ErrBlobNotFound, client.Download(tag, tag, &b))
    99  }