Add `get_packages` function.

* gd_diff.py (get_packages): New function
* setup.py: Add `beautifulsoup4` and `requests` as installation
requirements; Add `mock` as dev requirements.
* tests/test_gd_diff.py (test_get_packages_error)
(test_get_packages): New functions

1 files changed, 2 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 35f34df..90129e1 100644
--- a/setup.py
+++ b/setup.py
@@ -41,8 +41,9 @@ config = {
     ],
     'keywords': 'gNewSense Debian documentation',
     'packages': find_packages(),
+    'install_requires': ['beautifulsoup4', 'requests'],
     'extras_require': {
-        'dev': ['nose', 'coverage', 'twine', 'wheel'],
+        'dev': ['nose', 'mock', 'coverage', 'twine', 'wheel'],
     }
 }