feat: Add dungeon editor smoke test and register it in the test suite

- Introduced a new smoke test for the Dungeon Editor to verify UI elements and functionality.
- Registered the Dungeon Editor smoke test in the main test suite for automated execution.
- Updated the integration test setup to ensure proper ROM loading from multiple locations.

test/e2e/dungeon_editor_smoke_test.cc

@@ -0,0 +1,47 @@
+#include "e2e/dungeon_editor_smoke_test.h"
+#include "test_utils.h"
+#include "app/core/controller.h"
+#include "imgui_test_engine/imgui_te_context.h"
+
+// Simple smoke test for dungeon editor
+// Verifies that the editor opens and basic UI elements are present
+void E2ETest_DungeonEditorSmokeTest(ImGuiTestContext* ctx)
+{
+    // Load ROM first
+    yaze::test::gui::LoadRomInTest(ctx, "zelda3.sfc");
+    
+    // Open the Dungeon Editor
+    yaze::test::gui::OpenEditorInTest(ctx, "Dungeon Editor");
+    
+    // Focus on the dungeon editor window
+    ctx->WindowFocus("Dungeon Editor");
+    
+    // Log that we opened the editor
+    ctx->LogInfo("Dungeon Editor window opened successfully");
+    
+    // Verify the 3-column layout exists
+    // Check for Room Selector on the left
+    ctx->SetRef("Dungeon Editor");
+    
+    // Check basic tabs exist
+    ctx->ItemClick("Rooms##TabItemButton");
+    ctx->LogInfo("Room selector tab clicked");
+    
+    // Check that we can see room list
+    // Room 0 should exist in any valid zelda3.sfc
+    ctx->ItemClick("Room 0x00");
+    ctx->LogInfo("Selected room 0x00");
+    
+    // Verify canvas is present (center column)
+    // The canvas should be focusable
+    ctx->ItemClick("##Canvas");
+    ctx->LogInfo("Canvas clicked");
+    
+    // Check Object Selector tab on right
+    ctx->ItemClick("Object Selector##TabItemButton");
+    ctx->LogInfo("Object selector tab clicked");
+    
+    // Log success
+    ctx->LogInfo("Dungeon Editor smoke test completed successfully");
+}
+

test/e2e/dungeon_editor_smoke_test.h

@@ -0,0 +1,9 @@
+#ifndef YAZE_TEST_E2E_DUNGEON_EDITOR_SMOKE_TEST_H
+#define YAZE_TEST_E2E_DUNGEON_EDITOR_SMOKE_TEST_H
+
+#include "imgui_test_engine/imgui_te_context.h"
+
+void E2ETest_DungeonEditorSmokeTest(ImGuiTestContext* ctx);
+
+#endif  // YAZE_TEST_E2E_DUNGEON_EDITOR_SMOKE_TEST_H
+

test/integration/dungeon_editor_test.h

@@ -18,9 +18,16 @@ namespace test {
 class DungeonEditorIntegrationTest : public ::testing::Test {
  protected:
   void SetUp() override {
-    // Use the real ROM
+    // Use the real ROM (try multiple locations)
     rom_ = std::make_unique<Rom>();
-    ASSERT_TRUE(rom_->LoadFromFile("build/bin/zelda3.sfc").ok());
+    auto status = rom_->LoadFromFile("assets/zelda3.sfc");
+    if (!status.ok()) {
+      status = rom_->LoadFromFile("build/bin/zelda3.sfc");
+    }
+    if (!status.ok()) {
+      status = rom_->LoadFromFile("zelda3.sfc");
+    }
+    ASSERT_TRUE(status.ok()) << "Could not load zelda3.sfc from any location";
     dungeon_editor_ = std::make_unique<editor::DungeonEditor>();
     dungeon_editor_->set_rom(rom_.get());
   }

test/yaze_test.cc

@@ -19,6 +19,7 @@
 #include "app/core/controller.h"
 #include "e2e/canvas_selection_test.h"
 #include "e2e/framework_smoke_test.h"
+#include "e2e/dungeon_editor_smoke_test.h"
 
 // #include "test_editor.h"  // Not used in main
 
@@ -285,6 +286,11 @@ int main(int argc, char* argv[]) {
     ImGuiTest* canvas_test = IM_REGISTER_TEST(engine, "E2ETest", "CanvasSelectionTest");
     canvas_test->TestFunc = E2ETest_CanvasSelectionTest;
     canvas_test->UserData = &controller;
+    
+    // Register dungeon editor smoke test
+    ImGuiTest* dungeon_test = IM_REGISTER_TEST(engine, "E2ETest", "DungeonEditorSmokeTest");
+    dungeon_test->TestFunc = E2ETest_DungeonEditorSmokeTest;
+    dungeon_test->UserData = &controller;
 
     // Main loop
     bool done = false;