[MM-67377] cherry-pick Fix (#35336) (#35657)

Automatic Merge

server/channels/app/plugin_api_test.go

@@ -2247,6 +2247,23 @@ func TestPluginAPIUpdateCommand(t *testing.T) {
 	require.NoError(t, appErr)
 	require.Equal(t, "anothernewtriggeragain", newCmd4.Trigger)
 	require.Equal(t, team1.Id, newCmd4.TeamId)
+
+	// Updating a command's trigger to one that already exists should fail.
+	cmd2 := &model.Command{
+		TeamId:  team1.Id,
+		Trigger: "uniquetrigger",
+		Method:  "G",
+		URL:     "http://test.com/uniquetrigger",
+	}
+	cmd2, appErr = api.CreateCommand(cmd2)
+	require.NoError(t, appErr)
+
+	cmd2.Trigger = "anotherNewTriggerAgain"
+	_, appErr = api.UpdateCommand(cmd2.Id, cmd2)
+	require.Error(t, appErr)
+	var appError *model.AppError
+	require.ErrorAs(t, appErr, &appError)
+	require.Equal(t, "api.command.duplicate_trigger.app_error", appError.Id)
 }
 
 func TestPluginAPIIsEnterpriseReady(t *testing.T) {