Added basic context for testing

.gitignore

@@ -2,3 +2,4 @@ __pycache__
 build
 dist
 namelist.egg-info
+*.pyc

tests/context.py

+"""Context for tests."""
+
+import os
+import sys
+sys.path.insert(
+    0,
+    os.path.abspath(
+        os.path.join(os.path.dirname(__file__), '..')
+    )
+)
+
+
+import namelist