Fixed bug in PhotosDB.__repr__ and added test for empty database

tests/test_empty_library_4_0.py

@@ -0,0 +1,108 @@
+import pytest
+
+# test empty library
+
+PHOTOS_DB = "./tests/Empty-Library-4.0-3461.7.150.photoslibrary/database/photos.db"
+PHOTOS_DB_PATH = "/Empty-Library-4.0-3461.7.150.photoslibrary/database/photos.db"
+PHOTOS_LIBRARY_PATH = "/Empty-Library-4.0-3461.7.150.photoslibrary"
+
+KEYWORDS = []
+PERSONS = []
+ALBUMS = []
+KEYWORDS_DICT = {}
+PERSONS_DICT = {}
+ALBUM_DICT = {}
+
+
+def test_init():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    assert isinstance(photosdb, osxphotos.PhotosDB)
+
+
+def test_db_version():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    assert photosdb.db_version in osxphotos._constants._TESTED_DB_VERSIONS
+    assert photosdb.db_version == "4025"
+
+
+def test_os_version():
+    import osxphotos
+
+    (_, major, _) = osxphotos.utils._get_os_version()
+    assert major in osxphotos._constants._TESTED_OS_VERSIONS
+
+
+def test_persons():
+    import osxphotos
+    import collections
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    assert photosdb.persons == []
+
+
+def test_keywords():
+    import osxphotos
+    import collections
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    assert photosdb.keywords == []
+
+
+def test_albums():
+    import osxphotos
+    import collections
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    assert photosdb.albums == []
+
+
+def test_keywords_dict():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    keywords = photosdb.keywords_as_dict
+    assert keywords == {}
+
+
+def test_persons_as_dict():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    persons = photosdb.persons_as_dict
+    assert persons == {}
+
+
+def test_albums_as_dict():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    albums = photosdb.albums_as_dict
+    assert albums == {}
+
+
+def test_count():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    photos = photosdb.photos()
+    assert len(photos) == 0
+
+
+def test_get_db_path():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    db_path = photosdb.db_path
+    assert db_path.endswith(PHOTOS_DB_PATH)
+
+
+def test_get_library_path():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    lib_path = photosdb.library_path
+    assert lib_path.endswith(PHOTOS_LIBRARY_PATH)