1 files changed, 159 insertions, 0 deletions
diff --git a/pkg/v1/remote/list_test.go b/pkg/v1/remote/list_test.go
new file mode 100644
index 0000000..89700b8
--- /dev/null
+++ b/pkg/v1/remote/list_test.go
@@ -0,0 +1,159 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// 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 (
+	"context"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-containerregistry/pkg/name"
+)
+
+func TestList(t *testing.T) {
+	cases := []struct {
+		name         string
+		responseBody []byte
+		wantErr      bool
+		wantTags     []string
+	}{{
+		name:         "success",
+		responseBody: []byte(`{"tags":["foo","bar"]}`),
+		wantErr:      false,
+		wantTags:     []string{"foo", "bar"},
+	}, {
+		name:         "not json",
+		responseBody: []byte("notjson"),
+		wantErr:      true,
+	}}
+
+	repoName := "ubuntu"
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			tagsPath := fmt.Sprintf("/v2/%s/tags/list", repoName)
+			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				switch r.URL.Path {
+				case "/v2/":
+					w.WriteHeader(http.StatusOK)
+				case tagsPath:
+					if r.Method != http.MethodGet {
+						t.Errorf("Method; got %v, want %v", r.Method, http.MethodGet)
+					}
+
+					w.Write(tc.responseBody)
+				default:
+					t.Fatalf("Unexpected path: %v", r.URL.Path)
+				}
+			}))
+			defer server.Close()
+			u, err := url.Parse(server.URL)
+			if err != nil {
+				t.Fatalf("url.Parse(%v) = %v", server.URL, err)
+			}
+
+			repo, err := name.NewRepository(fmt.Sprintf("%s/%s", u.Host, repoName), name.WeakValidation)
+			if err != nil {
+				t.Fatalf("name.NewRepository(%v) = %v", repoName, err)
+			}
+
+			tags, err := List(repo)
+			if (err != nil) != tc.wantErr {
+				t.Errorf("List() wrong error: %v, want %v: %v\n", (err != nil), tc.wantErr, err)
+			}
+
+			if diff := cmp.Diff(tc.wantTags, tags); diff != "" {
+				t.Errorf("List() wrong tags (-want +got) = %s", diff)
+			}
+		})
+	}
+}
+
+func TestCancelledList(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel()
+
+	repoName := "doesnotmatter"
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/v2/":
+			w.WriteHeader(http.StatusOK)
+		default:
+			t.Fatalf("Unexpected path: %v", r.URL.Path)
+		}
+	}))
+	defer server.Close()
+	u, err := url.Parse(server.URL)
+	if err != nil {
+		t.Fatalf("url.Parse(%v) = %v", server.URL, err)
+	}
+
+	repo, err := name.NewRepository(fmt.Sprintf("%s/%s", u.Host, repoName), name.WeakValidation)
+	if err != nil {
+		t.Fatalf("name.NewRepository(%v) = %v", repoName, err)
+	}
+
+	_, err = ListWithContext(ctx, repo)
+	if err == nil || !strings.Contains(err.Error(), "context canceled") {
+		t.Errorf(`unexpected error; want "context canceled", got %v`, err)
+	}
+}
+
+func makeResp(hdr string) *http.Response {
+	return &http.Response{
+		Header: http.Header{
+			"Link": []string{hdr},
+		},
+	}
+}
+
+func TestGetNextPageURL(t *testing.T) {
+	for _, hdr := range []string{
+		"",
+		"<",
+		"><",
+		"<>",
+		fmt.Sprintf("<%c>", 0x7f), // makes url.Parse fail
+	} {
+		u, err := getNextPageURL(makeResp(hdr))
+		if err == nil && u != nil {
+			t.Errorf("Expected err, got %+v", u)
+		}
+	}
+
+	good := &http.Response{
+		Header: http.Header{
+			"Link": []string{"<example.com>"},
+		},
+		Request: &http.Request{
+			URL: &url.URL{
+				Scheme: "https",
+			},
+		},
+	}
+	u, err := getNextPageURL(good)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if u.Scheme != "https" {
+		t.Errorf("expected scheme to match request, got %s", u.Scheme)
+	}
+}