Query tests: use normalized paths

Match ordinary beets behavior by storing normalized paths in the
database. This matters on Windows, where normalization adds backslashes
and drive letters.

test/helper.py

@@ -52,6 +52,7 @@ from beets import importer
 from beets.autotag.hooks import AlbumInfo, TrackInfo
 from beets.mediafile import MediaFile, Image
 from beets.ui import _arg_encoding
+from beets import util
 
 # TODO Move AutotagMock here
 from test import _common
@@ -306,11 +307,19 @@ class TestHelper(object):
 
         If `path` is not set in `values` it is set to `item.destination()`.
         """
+        # When specifying a path, store it normalized (as beets does
+        # ordinarily).
+        if 'path' in values:
+            values['path'] = util.normpath(values['path'])
+
         item = self.create_item(**values)
         item.add(self.lib)
+
+        # Ensure every item has a path.
         if 'path' not in values:
             item['path'] = item.destination()
             item.store()
+
         return item
 
     def add_item_fixture(self, **values):

test/test_query.py

@@ -31,6 +31,7 @@ from beets.dbcore import types
 from beets.dbcore.query import (NoneQuery, ParsingError,
                                 InvalidQueryArgumentTypeError)
 from beets.library import Library, Item
+from beets import util
 
 
 class TestHelper(helper.TestHelper):
@@ -372,7 +373,7 @@ class PathQueryTest(_common.LibTestCase, TestHelper, AssertsMixin):
         super(PathQueryTest, self).setUp()
 
         # This is the item we'll try to match.
-        self.i.path = '/a/b/c.mp3'
+        self.i.path = util.normpath('/a/b/c.mp3')
         self.i.title = u'path item'
         self.i.album = u'path album'
         self.i.store()
@@ -380,7 +381,7 @@ class PathQueryTest(_common.LibTestCase, TestHelper, AssertsMixin):
 
         # A second item for testing exclusion.
         i2 = _common.item()
-        i2.path = '/x/y/z.mp3'
+        i2.path = util.normpath('/x/y/z.mp3')
         i2.title = 'another item'
         i2.album = 'another album'
         self.lib.add(i2)