Parameterize tray icon update test

Convert the multiple-icon update unit test to a parameterized test (TEST_P) using TrayIconTest/GetParam. Set the initial testTray.icon from the parameter, use the parameter's alternateIcon for the first update, add WaitForTrayReady and captureScreenshot using the parameter name, then restore the original icon. This enables running the same test across different icon variants and capturing screenshots for each.

Author: ReenigneArcher

tests/unit/test_tray.cpp

@@ -513,16 +513,21 @@ TEST_F(TrayTest, TestCheckboxStates) {
   testTray.menu[1].checked = 1;
 }
 
-TEST_F(TrayTest, TestMultipleIconUpdates) {
+TEST_P(TrayIconTest, TestMultipleIconUpdates) {
+  const auto &iconParam = GetParam();
+  testTray.icon = iconParam.icon;
+
   int initResult = tray_init(&testTray);
   trayRunning = (initResult == 0);
   ASSERT_EQ(initResult, 0);
 
   // Update icon multiple times
-  testTray.icon = TRAY_ICON2;
+  testTray.icon = iconParam.alternateIcon;
   tray_update(&testTray);
+  WaitForTrayReady();
+  EXPECT_TRUE(captureScreenshot(std::string("tray_icon_update_") + iconParam.name));
 
-  testTray.icon = TRAY_ICON1;
+  testTray.icon = iconParam.icon;
   tray_update(&testTray);
 }