diff --git a/sigal/gallery.py b/sigal/gallery.py
index 2be0f4e..e4126cd 100644
--- a/sigal/gallery.py
+++ b/sigal/gallery.py
@@ -36,9 +36,7 @@ from clint.textui import progress, colored
 from os.path import join
 from PIL import Image as PILImage
 
-import sigal.image
-import sigal.video
-from . import compat
+from . import compat, image, video
 from .settings import get_thumb
 from .writer import Writer
 
@@ -172,8 +170,6 @@ class PathsDb(object):
             self.db[path]['thumbnail'] = self.db[path]['medias'][0]
             return
 
-        self.db[path]['thumbnail'] = ''
-
 
 class Gallery(object):
     "Prepare images"
@@ -299,11 +295,11 @@ def process_image(filepath, outpath, settings):
     if settings['keep_orig']:
         shutil.copy(filepath, join(outpath, settings['orig_dir'], filename))
 
-    sigal.image.generate_image(filepath, outname, settings, options=options)
+    image.generate_image(filepath, outname, settings, options=options)
 
     if settings['make_thumbs']:
         thumb_name = join(outpath, get_thumb(settings, filename))
-        sigal.image.generate_thumbnail(
+        image.generate_thumbnail(
             outname, thumb_name, settings['thumb_size'],
             fit=settings['thumb_fit'], options=options)
 
@@ -319,12 +315,12 @@ def process_video(filepath, outpath, settings):
         shutil.copy(filepath, join(outpath, settings['orig_dir'], filename))
 
     # TODO: Add specific video size settings
-    sigal.video.generate_video(filepath, outname, settings['img_size'],
-                               settings['webm_options'])
+    video.generate_video(filepath, outname, settings['img_size'],
+                         settings['webm_options'])
 
     if settings['make_thumbs']:
         thumb_name = join(outpath, get_thumb(settings, filename))
-        sigal.video.generate_thumbnail(
+        video.generate_thumbnail(
             outname, thumb_name, settings['thumb_size'],
             fit=settings['thumb_fit'], options=settings['jpg_options'])
 
diff --git a/tests/test_gallery.py b/tests/test_gallery.py
index e44e8a0..53f2b79 100644
--- a/tests/test_gallery.py
+++ b/tests/test_gallery.py
@@ -3,7 +3,7 @@
 import os
 import pytest
 
-from sigal.gallery import PathsDb, get_metadata
+from sigal.gallery import Gallery, PathsDb, get_metadata
 from sigal.settings import read_settings
 
 CURRENT_DIR = os.path.dirname(__file__)
@@ -30,9 +30,9 @@ REF = {
         'title': 'Another example gallery with a very long name',
         'thumbnail': 'm57_the_ring_nebula-587px.jpg',
         'medias': ['exo20101028-b-full.jpg',
-                'm57_the_ring_nebula-587px.jpg',
-                'Hubble ultra deep field.jpg',
-                'Hubble Interacting Galaxy NGC 5257.jpg'],
+                   'm57_the_ring_nebula-587px.jpg',
+                   'Hubble ultra deep field.jpg',
+                   'Hubble Interacting Galaxy NGC 5257.jpg'],
     },
     u'accentué': {
         'title': u'Accentué',
@@ -54,7 +54,7 @@ def paths():
     default_conf = os.path.join(SAMPLE_DIR, 'sigal.conf.py')
     settings = read_settings(default_conf)
     return PathsDb(os.path.join(SAMPLE_DIR, 'pictures'),
-            settings['img_ext_list'], settings['vid_ext_list'])
+                   settings['img_ext_list'], settings['vid_ext_list'])
 
 
 @pytest.fixture(scope='module')
@@ -64,16 +64,17 @@ def db(paths):
 
 
 def test_filelist(db):
-    assert set(db.keys()) == set(['paths_list', 'skipped_dir', '.',
-        'dir1', 'dir2', 'dir1/test1', 'dir1/test2', u'accentué', 'video'])
+    assert set(db.keys()) == set([
+        'paths_list', 'skipped_dir', '.', 'dir1', 'dir2', 'dir1/test1',
+        'dir1/test2', u'accentué', 'video'])
 
-    assert set(db['paths_list']) == set(['.', 'dir1', 'dir1/test1',
-        'dir1/test2', 'dir2', u'accentué', 'video'])
+    assert set(db['paths_list']) == set([
+        '.', 'dir1', 'dir1/test1', 'dir1/test2', 'dir2', u'accentué', 'video'])
 
     assert set(db['skipped_dir']) == set(['empty', 'dir1/empty'])
     assert db['.']['medias'] == []
     assert set(db['.']['subdir']) == set([u'accentué', 'dir1', 'dir2',
-        'video'])
+                                          'video'])
 
 
 def test_title(db):
@@ -93,9 +94,8 @@ def test_medialist(db):
 
 def test_get_subdir(paths):
     assert set(paths.get_subdirs('dir1')) == set(['dir1/test1', 'dir1/test2'])
-    assert set(paths.get_subdirs('.')) == set(['dir1', 'dir2', 'dir1/test1',
-                                               'dir1/test2', u'accentué',
-                                               'video'])
+    assert set(paths.get_subdirs('.')) == set([
+        'dir1', 'dir2', 'dir1/test1', 'dir1/test2', u'accentué', 'video'])
 
 
 def test_get_metadata():
@@ -110,14 +110,19 @@ def test_get_metadata():
     assert m['thumbnail'] == REF['dir2']['thumbnail']
 
 
-# class TestGallery(unittest.TestCase):
-#     "Test the Gallery class."
+def test_gallery(tmpdir):
+    "Test the Gallery class."
+
+    default_conf = os.path.join(SAMPLE_DIR, 'sigal.conf.py')
+    settings = read_settings(default_conf)
+    settings['destination'] = str(tmpdir)
+    gal = Gallery(settings)
+    gal.build()
+
+    out_html = os.path.join(settings['destination'], 'index.html')
+    assert os.path.isfile(out_html)
 
-#     @classmethod
-#     def setUp(cls):
-#         """Read the sample config file."""
+    with open(out_html, 'r') as f:
+        html = f.read()
 
-#         default_conf = os.path.join(CURRENT_DIR, 'sample', 'sigal.conf.py')
-#         settings = read_settings(default_conf)
-#         cls.gal = Gallery(settings, os.path.join(CURRENT_DIR, 'sample'),
-#                           os.path.join(CURRENT_DIR, 'output'))
+    assert '<title>Sigal test gallery</title>' in html