Add Selenium test with different resolution

tests/conftest.py

@@ -74,7 +74,7 @@ def glances_webserver():
 
 
 @pytest.fixture(scope="session")
-def firefox_browser():
+def web_browser():
     """Init Firefox browser."""
     opt = ChromeOptions()
     opt.add_argument("--headless")

tests/test_webui.py

@@ -11,16 +11,49 @@
 
 import os
 import tempfile
+import time
 
 import pytest
 from selenium.webdriver.common.by import By
 
+SCREENSHOT_RESOLUTIONS = [
+    # PC
+    (640, 480),
+    (800, 600),
+    (1024, 768),
+    (1600, 900),
+    (1280, 1024),
+    (1600, 1200),
+    (1920, 1200),
+    # IPHONE
+    (750, 1334),  # 8
+    (1080, 1920),  # 8 Plus
+    (1242, 2208),  # XS
+    (1125, 2436),  # 11 Pro
+    (1179, 2556),  # 15
+    (1320, 2868),  # 16 Pro Max
+    # PIXEL Phone
+    (1080, 2400),  # Pixel 7
+]
+
 
 @pytest.fixture(scope="module")
-def glances_homepage(firefox_browser):
-    firefox_browser.get("http://localhost:61234")
-    firefox_browser.save_screenshot(os.path.join(tempfile.gettempdir(), "glances.png"))
-    return firefox_browser
+def glances_homepage(web_browser):
+    time.sleep(3)
+    web_browser.get("http://localhost:61234")
+    return web_browser
+
+
+def test_screenshot(glances_webserver, glances_homepage):
+    """
+    Test Glances home page screenshot.
+    """
+    glances_webserver is not None
+    for resolution in SCREENSHOT_RESOLUTIONS:
+        glances_homepage.set_window_size(*resolution)
+        glances_homepage.save_screenshot(
+            os.path.join(tempfile.gettempdir(), f"glances-{'-'.join(map(str, list(resolution)))}.png")
+        )
 
 
 def test_loading_time(glances_webserver, glances_homepage):