gh-28 Add tests for Photo module

elodie/tests/media/photo.py

@@ -0,0 +1,155 @@
+# Project imports
+import os
+import sys
+
+import hashlib
+import random
+import re
+import shutil
+import string
+import tempfile
+import time
+import datetime
+
+from nose.plugins.skip import SkipTest
+
+sys.path.insert(0, os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.realpath(__file__)))))))
+sys.path.insert(0, os.path.abspath(os.path.dirname(os.path.dirname(os.path.realpath(__file__)))))
+
+import helper
+from elodie.media.media import Media
+from elodie.media.photo import Photo
+
+os.environ['TZ'] = 'GMT'
+
+def test_photo_extensions():
+    photo = Photo()
+    extensions = photo.photo_extensions
+
+    assert 'jpg' in extensions
+    assert 'jpeg' in extensions
+    assert 'nef' in extensions
+    assert 'dng' in extensions
+    assert 'gif' in extensions
+
+    valid_extensions = Photo.get_valid_extensions()
+
+    assert extensions == valid_extensions, valid_extensions
+
+def test_empty_album():
+    photo = Photo(helper.get_file('plain.jpg'))
+    assert photo.get_album() is None
+
+def test_has_album():
+    photo = Photo(helper.get_file('with-album.jpg'))
+    album = photo.get_album()
+
+    assert album == 'Test Album', album
+
+def test_is_valid():
+    photo = Photo(helper.get_file('plain.jpg'))
+
+    assert photo.is_valid()
+
+def test_is_not_valid():
+    photo = Photo(helper.get_file('text.txt'))
+
+    assert not photo.is_valid()
+
+def test_get_coordinate_default():
+    photo = Photo(helper.get_file('with-location.jpg'))
+    coordinate = photo.get_coordinate()
+
+    assert coordinate == 37.3667027222, coordinate
+
+def test_get_coordinate_latitude():
+    photo = Photo(helper.get_file('with-location.jpg'))
+    coordinate = photo.get_coordinate('latitude')
+
+    assert coordinate == 37.3667027222, coordinate
+
+def test_get_coordinate_longitude():
+    photo = Photo(helper.get_file('with-location.jpg'))
+    coordinate = photo.get_coordinate('longitude')
+
+    assert coordinate == -122.033383611, coordinate
+
+def test_is_valid():
+    photo = Photo(helper.get_file('with-location.jpg'))
+
+    assert photo.is_valid()
+
+def test_is_not_valid():
+    photo = Photo(helper.get_file('text.txt'))
+
+    assert not photo.is_valid()
+
+def test_set_date_taken():
+    temporary_folder, folder = helper.create_working_folder()
+
+    origin = '%s/photo.jpg' % folder
+    shutil.copyfile(helper.get_file('plain.jpg'), origin)
+
+    photo = Photo(origin)
+    status = photo.set_date_taken(datetime.datetime(2013, 9, 30, 7, 6, 5))
+
+    assert status == True, status
+
+    photo_new = Photo(origin)
+    metadata = photo_new.get_metadata()
+
+    date_taken = metadata['date_taken']
+
+    shutil.rmtree(folder)
+
+    assert date_taken == (2013, 9, 30, 7, 6, 5, 0, 273, 0), metadata['date_taken']
+
+def test_set_location():
+    temporary_folder, folder = helper.create_working_folder()
+
+    origin = '%s/photo.jpg' % folder
+    shutil.copyfile(helper.get_file('plain.jpg'), origin)
+
+    photo = Photo(origin)
+    origin_metadata = photo.get_metadata()
+
+    # Verify that original photo has no location information
+    assert origin_metadata['latitude'] is None, origin_metadata['latitude']
+    assert origin_metadata['longitude'] is None, origin_metadata['longitude']
+
+    status = photo.set_location(11.1111111111, 99.9999999999)
+
+    assert status == True, status
+
+    photo_new = Photo(origin)
+    metadata = photo_new.get_metadata()
+
+    shutil.rmtree(folder)
+
+    # @TODO: understand why the decimal to degree conversion loses accuracy
+    assert metadata['latitude'] == 11.1001851852, metadata['latitude']
+    assert metadata['longitude'] == 99.9836111111, metadata['longitude']
+
+def test_set_title():
+    temporary_folder, folder = helper.create_working_folder()
+
+    origin = '%s/photo.jpg' % folder
+    shutil.copyfile(helper.get_file('plain.jpg'), origin)
+
+    photo = Photo(origin)
+    origin_metadata = photo.get_metadata()
+
+    # Verify that original photo has no location information
+    assert origin_metadata['latitude'] is None, origin_metadata['latitude']
+    assert origin_metadata['longitude'] is None, origin_metadata['longitude']
+
+    status = photo.set_title('my photo title')
+
+    assert status == True, status
+
+    photo_new = Photo(origin)
+    metadata = photo_new.get_metadata()
+
+    shutil.rmtree(folder)
+
+    assert metadata['title'] == 'my photo title', metadata['title']