add ParseRepositoryTag tests

utils/utils.go

@@ -611,11 +611,11 @@ type JSONMessage struct {
 	Status   string `json:"status,omitempty"`
 	Progress string `json:"progress,omitempty"`
 	Error    string `json:"error,omitempty"`
-	ID	 string `json:"id,omitempty"`
-	Time	 int64 `json:"time,omitempty"`
+	ID       string `json:"id,omitempty"`
+	Time     int64  `json:"time,omitempty"`
 }
 
-func (jm *JSONMessage) Display(out io.Writer) (error) {
+func (jm *JSONMessage) Display(out io.Writer) error {
 	if jm.Time != 0 {
 		fmt.Fprintf(out, "[%s] ", time.Unix(jm.Time, 0))
 	}
@@ -631,7 +631,6 @@ func (jm *JSONMessage) Display(out io.Writer) (error) {
 	return nil
 }
 
-
 type StreamFormatter struct {
 	json bool
 	used bool

utils/utils_test.go

@@ -282,3 +282,24 @@ func TestParseHost(t *testing.T) {
 		t.Errorf("unix:///var/run/docker.sock -> expected unix:///var/run/docker.sock, got %s", addr)
 	}
 }
+
+func TestParseRepositoryTag(t *testing.T) {
+	if repo, tag := ParseRepositoryTag("root"); repo != "root" || tag != "" {
+		t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "root", "", repo, tag)
+	}
+	if repo, tag := ParseRepositoryTag("root:tag"); repo != "root" || tag != "tag" {
+		t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "root", "tag", repo, tag)
+	}
+	if repo, tag := ParseRepositoryTag("user/repo"); repo != "user/repo" || tag != "" {
+		t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "user/repo", "", repo, tag)
+	}
+	if repo, tag := ParseRepositoryTag("user/repo:tag"); repo != "user/repo" || tag != "tag" {
+		t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "user/repo", "tag", repo, tag)
+	}
+	if repo, tag := ParseRepositoryTag("url:5000/repo"); repo != "url:5000/repo" || tag != "" {
+		t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "url:5000/repo", "", repo, tag)
+	}
+	if repo, tag := ParseRepositoryTag("url:5000/repo:tag"); repo != "url:5000/repo" || tag != "tag" {
+		t.Errorf("Expected repo: '%s' and tag: '%s', got '%s' and '%s'", "url:5000/repo", "tag", repo, tag)
+	}
+}