Ignore order of metadata in tests

handler_test.go

@@ -44,7 +44,7 @@ type httpTest struct {
 	ResHeader map[string]string
 }
 
-func (test *httpTest) Run(handler http.Handler, t *testing.T) {
+func (test *httpTest) Run(handler http.Handler, t *testing.T) *httptest.ResponseRecorder {
 	t.Log(test.Name)
 
 	req, _ := http.NewRequest(test.Method, test.URL, test.ReqBody)
@@ -77,6 +77,8 @@ func (test *httpTest) Run(handler http.Handler, t *testing.T) {
 	if test.ResBody != "" && string(w.Body.Bytes()) != test.ResBody {
 		t.Errorf("Expected '%s' as body (got '%s'", test.ResBody, string(w.Body.Bytes()))
 	}
+
+	return w
 }
 
 type methodOverrideStore struct {

head_test.go

@@ -31,7 +31,7 @@ func TestHead(t *testing.T) {
 		DataStore: headStore{},
 	})
 
-	(&httpTest{
+	res := (&httpTest{
 		Name:   "Successful request",
 		Method: "HEAD",
 		URL:    "yes",
@@ -40,13 +40,19 @@ func TestHead(t *testing.T) {
 		},
 		Code: http.StatusNoContent,
 		ResHeader: map[string]string{
-			"Upload-Offset":   "11",
-			"Upload-Length":   "44",
-			"Upload-Metadata": "name bHVucmpzLnBuZw==,type aW1hZ2UvcG5n",
-			"Cache-Control":   "no-store",
+			"Upload-Offset": "11",
+			"Upload-Length": "44",
+			"Cache-Control": "no-store",
 		},
 	}).Run(handler, t)
 
+	// Since the order of a map is not guaranteed in Go, we need to be prepared
+	// for the case, that the order of the metadata may have been changed
+	if v := res.Header().Get("Upload-Metadata"); v != "name bHVucmpzLnBuZw==,type aW1hZ2UvcG5n" &&
+		v != "type aW1hZ2UvcG5n,name bHVucmpzLnBuZw==" {
+		t.Errorf("Expected valid metadata (got '%s')", v)
+	}
+
 	(&httpTest{
 		Name:   "Non-existing file",
 		Method: "HEAD",