test: 💍 select height wxWidget

tests/e2e/selectheight.spec.ts

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+// Select Height Test - Regression guard for the wxChoice (<select>) height fix.
+// A <select>'s height only resolves after layout, but DoGetBestSize() is queried
+// before layout; the DOM used to report ~0 height, collapsing the control. The
+// fix floors the height in wxChoice::DoGetBestSize(). The C++ app queries one
+// wxChoice's GetBestSize() in its constructor (before Show()) and logs it.
+import { test, expect, tryLoadApp } from './utils/fixtures';
+
+test.describe('Select Height Tests', () => {
+
+  test('Select height test app loads successfully', async ({ page, testLogger }) => {
+    await page.goto('/standalone/selectheight/selectheight_test.html');
+    const loaded = await tryLoadApp(page);
+
+    await page.screenshot({ path: 'test-results/selectheight-01-loaded.png', fullPage: true });
+
+    const hasStartup = testLogger.consoleLogs.some(l => l.includes('[SELECTHEIGHT_TEST] Select height test app started'));
+
+    expect(loaded, 'Select height app should load').toBe(true);
+    expect(hasStartup, 'Startup log should be present').toBe(true);
+    expect(testLogger.errors.filter(e => !e.includes('favicon'))).toHaveLength(0);
+  });
+
+  test('wxChoice best size has a real height before layout', async ({ page, testLogger }) => {
+    await page.goto('/standalone/selectheight/selectheight_test.html');
+    const loaded = await tryLoadApp(page);
+    expect(loaded, 'App should load').toBe(true);
+
+    // Wait for the app to finish initialization
+    await page.waitForTimeout(500);
+
+    await page.screenshot({ path: 'test-results/selectheight-02-result.png', fullPage: true });
+
+    // Parse the best size logged from the constructor (before Show()/layout)
+    const bestSizeLogs = testLogger.consoleLogs.filter(l => l.includes('[SELECTHEIGHT_TEST] Choice best size:'));
+    expect(bestSizeLogs.length).toBeGreaterThan(0);
+
+    const bestMatch = bestSizeLogs[0].match(/Choice best size: (\d+)x(\d+)/);
+    expect(bestMatch, 'Best size log should contain dimensions').not.toBeNull();
+
+    if (bestMatch) {
+      const height = parseInt(bestMatch[2]);
+
+      // The key assertion: the <select> height must NOT collapse to ~0px.
+      // Pre-fix this was ~0; the DoGetBestSize() floor makes it a line of text tall.
+      expect(height, `Select best-size height should be > 0 (got ${height})`).toBeGreaterThan(0);
+      expect(height, `Select best-size height should be a real control height (got ${height})`).toBeGreaterThan(10);
+    }
+
+    // The C++ app cross-checks against GetCharHeight()+8 and emits PASS/FAIL.
+    const passLog = testLogger.consoleLogs.some(l => l.includes('[SELECTHEIGHT_TEST] PASS'));
+    const failLog = testLogger.consoleLogs.some(l => l.includes('[SELECTHEIGHT_TEST] FAIL'));
+
+    expect(failLog, 'Should not have FAIL log').toBe(false);
+    expect(passLog, 'Should have PASS log').toBe(true);
+  });
+});