More query tests and remove Optional from Filter

app/classes.py

@@ -82,7 +82,7 @@ class FileErrors(NamedTuple):
 class Filter:
     version: int = 1
     path_type: str = "contains"
-    path: Optional[str] = None
+    path: str = ""
     last_played_number: int = 0
     last_played_comparator: str = "before"
     last_played_unit: str = "years"

tests/test_queries.py

@@ -99,3 +99,32 @@ class MyTestCase(unittest.TestCase):
             results = Tracks.get_filtered_tracks(session, filter)
             assert len(results) == 1
             assert 'zulu' in results[0].path
+
+    def test_played_over_two_years_ago(self):
+        """Search for tracks played over 2 years ago"""
+
+        filter = Filter(last_played_unit="years", last_played_number=2)
+
+        with db.Session() as session:
+            results = Tracks.get_filtered_tracks(session, filter)
+            assert len(results) == 0
+
+    def test_never_played(self):
+        """Search for tracks never played"""
+
+        filter = Filter(last_played_comparator="never")
+
+        with db.Session() as session:
+            results = Tracks.get_filtered_tracks(session, filter)
+            assert len(results) == 1
+            assert 'alpha' in results[0].path
+
+    def test_played_anytime(self):
+        """Search for tracks played over a year ago"""
+
+        filter = Filter(last_played_comparator="Any time")
+
+        with db.Session() as session:
+            results = Tracks.get_filtered_tracks(session, filter)
+            assert len(results) == 1
+            assert 'zulu' in results[0].path