1 files changed, 55 insertions, 0 deletions
diff --git a/tools/github/reviver/github_test.go b/tools/github/reviver/github_test.go
new file mode 100644
index 000000000..5df7e3624
--- /dev/null
+++ b/tools/github/reviver/github_test.go
@@ -0,0 +1,55 @@
+// Copyright 2020 The gVisor 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 reviver
+
+import (
+	"testing"
+)
+
+func TestParseIssueNo(t *testing.T) {
+	testCases := []struct {
+		issue     string
+		expectErr bool
+		expected  int
+	}{
+		{
+			issue:    "gvisor.dev/issue/123",
+			expected: 123,
+		},
+		{
+			issue:    "gvisor.dev/issue/123/",
+			expected: 123,
+		},
+		{
+			issue:    "not a url",
+			expected: 0,
+		},
+		{
+			issue:     "gvisor.dev/issue//",
+			expectErr: true,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.issue, func(t *testing.T) {
+			id, err := parseIssueNo(tc.issue)
+			if err != nil && !tc.expectErr {
+				t.Errorf("got error: %v", err)
+			} else if tc.expected != id {
+				t.Errorf("got: %v, want: %v", id, tc.expected)
+			}
+		})
+	}
+}