info: add tests and omit None values

beetsplug/info.py

@@ -98,13 +98,20 @@ def library_data(item):
 
 
 def print_data(path, data):
-    maxwidth = max(len(key) for key in data)
+    formatted = {}
+    for key, value in data.iteritems():
+        if isinstance(value, list):
+            formatted[key] = u'; '.join(value)
+        if value is not None:
+            formatted[key] = value
+
+    maxwidth = max(len(key) for key in formatted)
     lineformat = u'{{0:>{0}}}: {{1}}'.format(maxwidth)
 
     ui.print_(displayable_path(path))
 
-    for field in sorted(data):
-        value = data[field]
+    for field in sorted(formatted):
+        value = formatted[field]
         if isinstance(value, list):
             value = u'; '.join(value)
         ui.print_(lineformat.format(field, value))

test/test_info.py

@@ -0,0 +1,80 @@
+# This file is part of beets.
+# Copyright 2014, Thomas Scholtes.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+
+import os
+import os.path
+from _common import unittest
+from helper import TestHelper
+
+from beets.mediafile import MediaFile
+
+
+class InfoTest(unittest.TestCase, TestHelper):
+
+    def setUp(self):
+        self.setup_beets()
+        self.load_plugins('info')
+
+    def tearDown(self):
+        self.unload_plugins()
+        self.teardown_beets()
+
+    def run_command(self, *args):
+        super(InfoTest, self).run_command('info', *args)
+
+    def test_path(self):
+        path = self.create_mediafile_fixture()
+
+        mediafile = MediaFile(path)
+        mediafile.albumartist = 'AAA'
+        mediafile.disctitle = 'DDD'
+        mediafile.genres = ['a', 'b', 'c']
+        mediafile.composer = None
+        mediafile.save()
+
+        out = self.run_with_output(path)
+        self.assertIn(path, out)
+        self.assertIn('albumartist: AAA', out)
+        self.assertIn('disctitle: DDD', out)
+        self.assertIn('genres: a; b; c', out)
+        self.assertNotIn('composer:', out)
+
+    def test_item_query(self):
+        items = self.add_item_fixtures(count=2)
+        items[0].album = 'xxxx'
+        items[0].write()
+        items[0].album = 'yyyy'
+        items[0].store()
+
+        out = self.run_with_output('album:yyyy')
+        self.assertIn(items[0].path, out)
+        self.assertIn('album: xxxx', out)
+
+        self.assertNotIn(items[1].path, out)
+
+    def test_item_library_query(self):
+        item, = self.add_item_fixtures()
+        item.album = 'xxxx'
+        item.store()
+
+        out = self.run_with_output('--library', 'album:xxxx')
+        self.assertIn(item.path, out)
+        self.assertIn('album: xxxx', out)
+
+
+def suite():
+    return unittest.TestLoader().loadTestsFromName(__name__)
+
+if __name__ == '__main__':
+    unittest.main(defaultTest='suite')