restore test_download_on_demand

Author: link2xt

deltachat-rpc-client/tests/test_chatlist_events.py

@@ -109,6 +109,40 @@ def test_delivery_status_failed(acfactory: ACFactory) -> None:
     assert failing_message.get_snapshot().state == const.MessageState.OUT_FAILED
 
 
+def test_download_on_demand(acfactory: ACFactory) -> None:
+    """
+    Test if download on demand emits chatlist update events.
+    This is only needed for last message in chat, but finding that out is too expensive, so it's always emitted
+    """
+    alice, bob = acfactory.get_online_accounts(2)
+
+    alice_contact_bob = alice.create_contact(bob, "Bob")
+    alice_chat_bob = alice_contact_bob.create_chat()
+    alice_chat_bob.send_text("hi")
+
+    alice.set_config("download_limit", "1")
+
+    msg = bob.wait_for_incoming_msg()
+    chat_id = msg.get_snapshot().chat_id
+    msg.get_snapshot().chat.accept()
+    bob.get_chat_by_id(chat_id).send_message(
+        "Hello World, this message is bigger than 5 bytes",
+        file="../test-data/image/screenshot.jpg",
+    )
+
+    message = alice.wait_for_incoming_msg()
+    snapshot = message.get_snapshot()
+    assert snapshot.download_state == const.DownloadState.AVAILABLE
+
+    alice.clear_all_events()
+
+    snapshot = message.get_snapshot()
+    chat_id = snapshot.chat_id
+    alice._rpc.download_full_message(alice.id, message.id)
+
+    wait_for_chatlist_specific_item(alice, chat_id)
+
+
 def get_multi_account_test_setup(acfactory: ACFactory) -> [Account, Account, Account]:
     alice, bob = acfactory.get_online_accounts(2)