fix: query by multiple tags

tests/test_events.py

@@ -57,6 +57,30 @@ async def test_valid_event_crud(valid_events: List[EventFixture]):
         events = await get_events(relay_id, filter)
         assert len(events) == 1, f"Expected one filter event '{f.name}'"
 
+    author = "a24496bca5dd73300f4e5d5d346c73132b7354c597fcbb6509891747b4689211"
+    event_id = "3219eec7427e365585d5adf26f5d2dd2709d3f0f2c0e1f79dc9021e951c67d96"
+    events_by_author = await get_events(relay_id, NostrFilter(authors=[author]))
+    assert len(events_by_author) == 5, f"Failed to filter by authors"
+
+    # todo: check why constructor does not work for fields with aliases (#e, #p)
+    filter = NostrFilter()
+    filter.p.append(author)
+    events_related_to_author = await get_events(relay_id, filter)
+    assert len(events_related_to_author) == 5, f"Failed to filter by tag 'p'"
+
+    filter = NostrFilter()
+    filter.e.append(event_id)
+    events_related_to_event = await get_events(relay_id, filter)
+    assert len(events_related_to_event) == 2, f"Failed to filter by tag 'e'"
+
+    reply_event_id = "6b2b6cb9c72caaf3dfbc5baa5e68d75ac62f38ec011b36cc83832218c36e4894"
+    filter = NostrFilter(authors=[author])
+    filter.p.append(author)
+    filter.e.append(event_id)
+    events_related_to_event = await get_events(relay_id, filter)
+    assert len(events_related_to_event) == 1, f"Failed to filter by tags 'e' & 'p'"
+    assert events_related_to_event[0].id == reply_event_id, f"Failed to find the right event by tags 'e' & 'p'"
+
         
 
 def get_fixtures(file):