Tests: get screens contents with the 'events' service for nanox

While the 'events?currentscreenonly=true' service does not work
properly for nanox in the sha-6a34680 version of speculos

tests/integration/check_section_text.py

@@ -71,6 +71,22 @@ def get_screen(url):
     print(f'- {screen} -')
     return screen
 
+def get_titled_screen(url, title):
+    """Retrieve the screen until title"""
+    r = requests.get(f'{url}/events')
+    r.raise_for_status()
+    lines = [e["text"] for e in r.json()["events"]]
+
+    assert len(lines) > 0, "Unexpected empty screen. Speculos killed?"
+
+    assert title in lines, f"Title \"{title}\" no found"
+
+    title_index = len(lines) - lines[::-1].index(title) - 1
+
+    screen = Screen(title=lines[title_index], text=lines[title_index+1:])
+    print(f'- {screen} -')
+    return screen
+
 def press_button(url, button):
     """Press a button on the ledger device."""
     print("- press", button)
@@ -89,8 +105,16 @@ def check_multi_screen(url, title, content, content_lines, device):
     """Assert that the screen contents across all screens with the given title match expected content."""
     while True:
       def check_screen():
-        screen = get_screen(url)
-        assert screen.title == title, f"expected section '{title}' but on '{screen.title}'"
+        if device in ["nanos", "nanosp"]:
+          screen = get_screen(url)
+          assert screen.title == title, f"expected section '{title}' but on '{screen.title}'"
+        # https://github.com/trilitech/ledger-app-tezos-wallet/issues/43
+        # Get screens contents with the 'events' service for nanox
+        # while the 'events?currentscreenonly=true' service does not
+        # work properly for nanox in the sha-6a34680 version of
+        # speculos
+        if device == "nanox":
+          screen = get_titled_screen(url, title)
         assert screen.matches(content, content_lines), \
                f"{screen} did not match {content[:10]}...{content[-10:]}"