1 files changed, 76 insertions, 0 deletions
diff --git a/pkg/v1/remote/check_test.go b/pkg/v1/remote/check_test.go
new file mode 100644
index 0000000..2f76e12
--- /dev/null
+++ b/pkg/v1/remote/check_test.go
@@ -0,0 +1,76 @@
+// Copyright 2019 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 (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/google/go-containerregistry/pkg/authn"
+)
+
+func TestCheckPushPermission(t *testing.T) {
+	for _, c := range []struct {
+		status  int
+		wantErr bool
+	}{{
+		http.StatusCreated,
+		false,
+	}, {
+		http.StatusAccepted,
+		false,
+	}, {
+		http.StatusForbidden,
+		true,
+	}, {
+		http.StatusBadRequest,
+		true,
+	}} {
+		expectedRepo := "write/time"
+		initiatePath := fmt.Sprintf("/v2/%s/blobs/uploads/", expectedRepo)
+		somewhereElse := fmt.Sprintf("/v2/%s/blobs/uploads/somewhere/else", expectedRepo)
+		server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			switch r.URL.Path {
+			case "/v2/":
+				w.WriteHeader(http.StatusOK)
+			case initiatePath:
+				if r.Method != http.MethodPost {
+					t.Errorf("Method; got %v, want %v", r.Method, http.MethodPost)
+				}
+				w.Header().Set("Location", "somewhere/else")
+				http.Error(w, "", c.status)
+			case somewhereElse:
+				if r.Method != http.MethodDelete {
+					t.Errorf("Method; got %v, want %v", r.Method, http.MethodDelete)
+				}
+			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)
+		}
+
+		ref := mustNewTag(t, fmt.Sprintf("%s/%s:latest", u.Host, expectedRepo))
+		if err := CheckPushPermission(ref, authn.DefaultKeychain, http.DefaultTransport); (err != nil) != c.wantErr {
+			t.Errorf("CheckPermission(%d): got error = %v, want err = %t", c.status, err, c.wantErr)
+		}
+	}
+}