test(11-03): E2E tests for theme and language toggle (UIE-04, UIE-05)

- test_theme_cycles_on_click: verifies auto->light->dark cycling via aria-label selector - test_theme_persists_across_reload: verifies localStorage persistence of chosen theme - test_language_toggle_switches_nav_label: verifies FR->EN nav label switch (Imprimantes->Printers) - test_language_persists_across_reload: verifies localStorage persistence of chosen language
2026-04-15 11:09:38 +02:00
parent 3353f4546c
commit 4db15d6986
2 changed files with 109 additions and 0 deletions
@@ -0,0 +1,59 @@
+"""UIE-05: E2E tests for language toggle — FR/EN switching and localStorage persistence."""
+from __future__ import annotations
+import pytest
+
+
+def test_language_toggle_switches_nav_label(page, live_server: str) -> None:
+    """Clicking FR/EN button switches nav label from French to English."""
+    page.goto(f"{live_server}/", wait_until="domcontentloaded")
+
+    # Default lang is 'fr' — nav should show French labels
+    # Wait for Alpine to hydrate
+    page.wait_for_function(
+        "document.querySelector('nav a[href=\"/printers\"]').textContent.trim() !== ''",
+        timeout=3000,
+    )
+
+    # In French, printers nav label = 'Imprimantes'
+    printers_label_fr = page.text_content("nav a[href='/printers']").strip()
+    assert printers_label_fr == "Imprimantes", f"Expected 'Imprimantes', got '{printers_label_fr}'"
+
+    # Click the language toggle button
+    page.click("button[title='Toggle language']")
+
+    # Wait for label to update
+    page.wait_for_function(
+        "document.querySelector('nav a[href=\"/printers\"]').textContent.trim() === 'Printers'",
+        timeout=2000,
+    )
+
+    printers_label_en = page.text_content("nav a[href='/printers']").strip()
+    assert printers_label_en == "Printers"
+
+    # Cleanup: reset to fr
+    page.evaluate("localStorage.setItem('imptune_lang', 'fr')")
+
+
+def test_language_persists_across_reload(page, live_server: str) -> None:
+    """After switching to EN, language is preserved on page reload."""
+    page.goto(f"{live_server}/", wait_until="domcontentloaded")
+
+    # Switch to English
+    page.click("button[title='Toggle language']")
+    page.wait_for_function(
+        "document.querySelector('nav a[href=\"/printers\"]').textContent.trim() === 'Printers'",
+        timeout=2000,
+    )
+
+    # Reload
+    page.reload(wait_until="domcontentloaded")
+    page.wait_for_function(
+        "document.querySelector('nav a[href=\"/printers\"]').textContent.trim() !== ''",
+        timeout=3000,
+    )
+
+    label_after_reload = page.text_content("nav a[href='/printers']").strip()
+    assert label_after_reload == "Printers"
+
+    # Cleanup: reset to fr
+    page.evaluate("localStorage.setItem('imptune_lang', 'fr')")