fix feedreader handling unrecognized published date (#28225)

homeassistant/components/feedreader/__init__.py

@@ -139,9 +139,10 @@ class FeedManager:
 
     def _update_and_fire_entry(self, entry):
         """Update last_entry_timestamp and fire entry."""
-        # We are lucky, `published_parsed` data available, let's make use of
-        # it to publish only new available entries since the last run
-        if "published_parsed" in entry.keys():
+        # Check if the entry has a published date.
+        if "published_parsed" in entry.keys() and entry.published_parsed:
+            # We are lucky, `published_parsed` data available, let's make use of
+            # it to publish only new available entries since the last run
             self._has_published_parsed = True
             self._last_entry_timestamp = max(
                 entry.published_parsed, self._last_entry_timestamp

tests/components/feedreader/test_init.py

@@ -163,6 +163,12 @@ class TestFeedreaderComponent(unittest.TestCase):
         manager, events = self.setup_manager(feed_data)
         assert len(events) == 3
 
+    def test_feed_with_unrecognized_publication_date(self):
+        """Test simple feed with entry with unrecognized publication date."""
+        feed_data = load_fixture("feedreader4.xml")
+        manager, events = self.setup_manager(feed_data)
+        assert len(events) == 1
+
     def test_feed_invalid_data(self):
         """Test feed with invalid data."""
         feed_data = "INVALID DATA"

tests/fixtures/feedreader4.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<rss version="2.0">
+    <channel>
+        <title>RSS Sample</title>
+        <description>This is an example of an RSS feed</description>
+        <link>http://www.example.com/main.html</link>
+        <lastBuildDate>Mon, 26 Oct 2019 12:00:00 +1000 </lastBuildDate>
+        <pubDate>Mon, 26 Oct 2019 15:00:00 +1000</pubDate>
+        <ttl>1800</ttl>
+
+        <item>
+            <title>Title 1</title>
+            <description>Description 1</description>
+            <link>http://www.example.com/link/1</link>
+            <guid isPermaLink="false">GUID 1</guid>
+            <pubDate>26.10.2019 - 12:06:24</pubDate>
+        </item>
+
+    </channel>
+</rss>