Fix handling of quoted time_pattern values (#40470)

Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: Franck Nijhof <frenck@frenck.nl>

homeassistant/components/homeassistant/triggers/time_pattern.py

@@ -36,7 +36,7 @@ class TimePattern:
             if isinstance(value, str) and value.startswith("/"):
                 number = int(value[1:])
             else:
-                number = int(value)
+                value = number = int(value)
 
             if not (0 <= number <= self.maximum):
                 raise vol.Invalid(f"must be a value between 0 and {self.maximum}")

tests/components/homeassistant/triggers/test_time_pattern.py

@@ -1,4 +1,6 @@
 """The tests for the time_pattern automation."""
+from datetime import timedelta
+
 import pytest
 import voluptuous as vol
 
@@ -123,6 +125,39 @@ async def test_if_fires_when_second_matches(hass, calls):
     assert len(calls) == 1
 
 
+async def test_if_fires_when_second_as_string_matches(hass, calls):
+    """Test for firing if seconds are matching."""
+    now = dt_util.utcnow()
+    time_that_will_not_match_right_away = dt_util.utcnow().replace(
+        year=now.year + 1, second=15
+    )
+    with patch(
+        "homeassistant.util.dt.utcnow", return_value=time_that_will_not_match_right_away
+    ):
+        assert await async_setup_component(
+            hass,
+            automation.DOMAIN,
+            {
+                automation.DOMAIN: {
+                    "trigger": {
+                        "platform": "time_pattern",
+                        "hours": "*",
+                        "minutes": "*",
+                        "seconds": "30",
+                    },
+                    "action": {"service": "test.automation"},
+                }
+            },
+        )
+
+    async_fire_time_changed(
+        hass, time_that_will_not_match_right_away + timedelta(seconds=15)
+    )
+
+    await hass.async_block_till_done()
+    assert len(calls) == 1
+
+
 async def test_if_fires_when_all_matches(hass, calls):
     """Test for firing if everything matches."""
     now = dt_util.utcnow()