diff --git a/actions_test.go b/actions_test.go
index a5ac590..43dc09c 100644
--- a/actions_test.go
+++ b/actions_test.go
@@ -364,16 +364,25 @@ func TestFindFavLinks_RealFixture(t *testing.T) {
 	if err != nil {
 		t.Fatalf("read doc: %v", err)
 	}
-	// submission.html was captured for submission 65052636 (a "+Fav" page).
-	favURL, unfavURL := findFavLinks(doc, 65052636)
-	if favURL == "" {
-		t.Error("findFavLinks: favURL empty +Fav anchor not found in real markup")
-	}
-	if !strings.Contains(favURL, "/fav/65052636/") || !strings.Contains(favURL, "key=") {
-		t.Errorf("findFavLinks: favURL = %q; want a /fav/65052636/?key=... URL", favURL)
-	}
-	if unfavURL != "" {
-		t.Errorf("findFavLinks: unfavURL = %q; want empty on a not-yet-faved page", unfavURL)
+	// submission.html was captured for submission 12345678. FA renders either
+	// a +Fav or a -Fav anchor depending on the capturing account's current
+	// state never both, never neither (when authenticated). The test stays
+	// direction-agnostic so it doesn't break when the capturing account
+	// favourites/unfavourites this submission.
+	favURL, unfavURL := findFavLinks(doc, 12345678)
+	switch {
+	case favURL == "" && unfavURL == "":
+		t.Error("findFavLinks: both URLs empty fav/unfav anchor not found in real markup")
+	case favURL != "" && unfavURL != "":
+		t.Errorf("findFavLinks: both URLs set (fav=%q unfav=%q); expected exactly one", favURL, unfavURL)
+	case favURL != "":
+		if !strings.Contains(favURL, "/fav/12345678/") || !strings.Contains(favURL, "key=") {
+			t.Errorf("findFavLinks: favURL = %q; want a /fav/12345678/?key=... URL", favURL)
+		}
+	case unfavURL != "":
+		if !strings.Contains(unfavURL, "/unfav/12345678/") || !strings.Contains(unfavURL, "key=") {
+			t.Errorf("findFavLinks: unfavURL = %q; want a /unfav/12345678/?key=... URL", unfavURL)
+		}
 	}
 }