add pymongo test

.travis.yml

@@ -7,6 +7,9 @@ python:
   - "3.5-dev" # 3.5 development branch
   - "3.6-dev" # 3.6 development branch
 
+services:
+  - mongodb
+
 # command to install dependencies
 install:
   - "pip install pytest -U" #needed for py3.3 testpass

setup.py

@@ -70,7 +70,8 @@ def run_tests(self):
     ],
     install_requires=[
         'tinydb>=3.2.1',
-        'tinydb_serialization>=1.0.4'
+        'tinydb_serialization>=1.0.4',
+        'pymongo>=3.4.0'
     ],
     tests_require=[
         'pytest>=3.2.0',

tests/test_coverage.py

@@ -0,0 +1,28 @@
+import pytest
+import pymongo
+
+
+mongo_client = pymongo.MongoClient("localhost:27017")
+mongo_database = mongo_client["test-mongodb"]
+mongo_collection = mongo_database["test-collection"]
+
+
+@pytest.fixture()
+def collection(request):
+    # setup the db, clear if necessary
+    # todo: the 'drop()' function from pymongo should work in future revisions
+    mongo_collection.delete_many({})
+
+    mongo_collection.insert_one({"Hello": "World"})
+
+    def fin():
+        mongo_client.close()
+
+    request.addfinalizer(finalizer=fin)
+
+    return mongo_collection
+
+
+def test_initialize_collection(collection):
+    c = collection.find({})
+    assert c.count() == 1