Issue #2. Update deps for testing.

Pipfile

@@ -10,6 +10,9 @@ flask = "*"
 requests = "*"
 gunicorn = "*"
 python-dotenv = "*"
+"nose2" = "*"
+pycodestyle = "*"
+mock = "*"
 
 [requires]
 python_version = "2.7"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "194d433e99a83bac8b9f2466fa6dde9905b300d039ec5eab5a1aa81b8353b587"
+            "sha256": "b20bfc5a750e22b350af717ef191b4872ed025472ff476a4249a1f157baaab8e"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -37,6 +37,47 @@
             ],
             "version": "==6.7"
         },
+        "coverage": {
+            "hashes": [
+                "sha256:03481e81d558d30d230bc12999e3edffe392d244349a90f4ef9b88425fac74ba",
+                "sha256:0b136648de27201056c1869a6c0d4e23f464750fd9a9ba9750b8336a244429ed",
+                "sha256:104ab3934abaf5be871a583541e8829d6c19ce7bde2923b2751e0d3ca44db60a",
+                "sha256:15b111b6a0f46ee1a485414a52a7ad1d703bdf984e9ed3c288a4414d3871dcbd",
+                "sha256:198626739a79b09fa0a2f06e083ffd12eb55449b5f8bfdbeed1df4910b2ca640",
+                "sha256:1c383d2ef13ade2acc636556fd544dba6e14fa30755f26812f54300e401f98f2",
+                "sha256:28b2191e7283f4f3568962e373b47ef7f0392993bb6660d079c62bd50fe9d162",
+                "sha256:2eb564bbf7816a9d68dd3369a510be3327f1c618d2357fa6b1216994c2e3d508",
+                "sha256:337ded681dd2ef9ca04ef5d93cfc87e52e09db2594c296b4a0a3662cb1b41249",
+                "sha256:3a2184c6d797a125dca8367878d3b9a178b6fdd05fdc2d35d758c3006a1cd694",
+                "sha256:3c79a6f7b95751cdebcd9037e4d06f8d5a9b60e4ed0cd231342aa8ad7124882a",
+                "sha256:3d72c20bd105022d29b14a7d628462ebdc61de2f303322c0212a054352f3b287",
+                "sha256:3eb42bf89a6be7deb64116dd1cc4b08171734d721e7a7e57ad64cc4ef29ed2f1",
+                "sha256:4635a184d0bbe537aa185a34193898eee409332a8ccb27eea36f262566585000",
+                "sha256:56e448f051a201c5ebbaa86a5efd0ca90d327204d8b059ab25ad0f35fbfd79f1",
+                "sha256:5a13ea7911ff5e1796b6d5e4fbbf6952381a611209b736d48e675c2756f3f74e",
+                "sha256:69bf008a06b76619d3c3f3b1983f5145c75a305a0fea513aca094cae5c40a8f5",
+                "sha256:6bc583dc18d5979dc0f6cec26a8603129de0304d5ae1f17e57a12834e7235062",
+                "sha256:701cd6093d63e6b8ad7009d8a92425428bc4d6e7ab8d75efbb665c806c1d79ba",
+                "sha256:7608a3dd5d73cb06c531b8925e0ef8d3de31fed2544a7de6c63960a1e73ea4bc",
+                "sha256:76ecd006d1d8f739430ec50cc872889af1f9c1b6b8f48e29941814b09b0fd3cc",
+                "sha256:7aa36d2b844a3e4a4b356708d79fd2c260281a7390d678a10b91ca595ddc9e99",
+                "sha256:7d3f553904b0c5c016d1dad058a7554c7ac4c91a789fca496e7d8347ad040653",
+                "sha256:7e1fe19bd6dce69d9fd159d8e4a80a8f52101380d5d3a4d374b6d3eae0e5de9c",
+                "sha256:8c3cb8c35ec4d9506979b4cf90ee9918bc2e49f84189d9bf5c36c0c1119c6558",
+                "sha256:9d6dd10d49e01571bf6e147d3b505141ffc093a06756c60b053a859cb2128b1f",
+                "sha256:9e112fcbe0148a6fa4f0a02e8d58e94470fc6cb82a5481618fea901699bf34c4",
+                "sha256:ac4fef68da01116a5c117eba4dd46f2e06847a497de5ed1d64bb99a5fda1ef91",
+                "sha256:b8815995e050764c8610dbc82641807d196927c3dbed207f0a079833ffcf588d",
+                "sha256:be6cfcd8053d13f5f5eeb284aa8a814220c3da1b0078fa859011c7fffd86dab9",
+                "sha256:c1bb572fab8208c400adaf06a8133ac0712179a334c09224fb11393e920abcdd",
+                "sha256:de4418dadaa1c01d497e539210cb6baa015965526ff5afc078c57ca69160108d",
+                "sha256:e05cb4d9aad6233d67e0541caa7e511fa4047ed7750ec2510d466e806e0255d6",
+                "sha256:e4d96c07229f58cb686120f168276e434660e4358cc9cf3b0464210b04913e77",
+                "sha256:f3f501f345f24383c0000395b26b726e46758b71393267aeae0bd36f8b3ade80",
+                "sha256:f8a923a85cb099422ad5a2e345fe877bbc89a8a8b23235824a93488150e45f6e"
+            ],
+            "version": "==4.5.1"
+        },
         "flask": {
             "hashes": [
                 "sha256:2271c0070dbcb5275fad4a82e29f23ab92682dc45f9dfbc22c02ba9b9322ce48",
@@ -45,6 +86,14 @@
             "index": "pypi",
             "version": "==1.0.2"
         },
+        "funcsigs": {
+            "hashes": [
+                "sha256:330cc27ccbf7f1e992e69fef78261dc7c6569012cf397db8d3de0234e6c937ca",
+                "sha256:a7bb0f2cf3a3fd1ab2732cb49eba4252c2af4240442415b4abce3b87022a8f50"
+            ],
+            "markers": "python_version < '3.3'",
+            "version": "==1.0.2"
+        },
         "gunicorn": {
             "hashes": [
                 "sha256:7ef2b828b335ed58e3b64ffa84caceb0a7dd7c5ca12f217241350dec36a1d5dc",
@@ -79,6 +128,37 @@
             ],
             "version": "==1.0"
         },
+        "mock": {
+            "hashes": [
+                "sha256:5ce3c71c5545b472da17b72268978914d0252980348636840bd34a00b5cc96c1",
+                "sha256:b158b6df76edd239b8208d481dc46b6afd45a846b7812ff0ce58971cf5bc8bba"
+            ],
+            "index": "pypi",
+            "version": "==2.0.0"
+        },
+        "nose2": {
+            "hashes": [
+                "sha256:954a62cfb2d2ac06dad32995cbc822bf00cc11e20d543963515932fd4eff33fa"
+            ],
+            "index": "pypi",
+            "version": "==0.7.4"
+        },
+        "pbr": {
+            "hashes": [
+                "sha256:4e8a0ed6a8705a26768f4c3da26026013b157821fe5f95881599556ea9d91c19",
+                "sha256:dae4aaa78eafcad10ce2581fc34d694faa616727837fd8e55c1a00951ad6744f"
+            ],
+            "version": "==4.0.2"
+        },
+        "pycodestyle": {
+            "hashes": [
+                "sha256:74abc4e221d393ea5ce1f129ea6903209940c1ecd29e002e8c6933c2b21026e0",
+                "sha256:cbc619d09254895b0d12c2c691e237b2e91e9b2ecf5e84c26b35400f93dcfb83",
+                "sha256:cbfca99bd594a10f674d0cd97a3d802a1fdef635d4361e1a2658de47ed261e3a"
+            ],
+            "index": "pypi",
+            "version": "==2.4.0"
+        },
         "python-dotenv": {
             "hashes": [
                 "sha256:4965ed170bf51c347a89820e8050655e9c25db3837db6602e906b6d850fad85c",
@@ -95,6 +175,13 @@
             "index": "pypi",
             "version": "==2.18.4"
         },
+        "six": {
+            "hashes": [
+                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
+                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+            ],
+            "version": "==1.11.0"
+        },
         "urllib3": {
             "hashes": [
                 "sha256:06330f386d6e4b195fbfc736b297f58c5a892e4440e54d294d7004e3a9bbea1b",