def test_no_cached_values(self):
'''when no cache values are found an empty DataFrame should be returned.'''
df = vc_mongo_driver.read_frame(qry={'this is not in the cache' : True},
index='date',
values='price',
collection=self.collection,
)
self.assertTrue(df.empty)
def test_read_frame(self):
'''read a Dataframe from mongo.'''
df = vc_mongo_driver.read_frame(qry={},
index='date',
values='price',
collection=self.collection,
)
assert_frame_equal(df, self.test_df)
def test_no_cached_values(self):
'''when no cache values are found an empty DataFrame should be returned.'''
df = vc_mongo_driver.read_frame(
qry={'this is not in the cache': True},
index='date',
values='price',
collection=self.collection,
)
self.assertTrue(df.empty)
def test_read_frame(self):
'''read a Dataframe from mongo.'''
df = vc_mongo_driver.read_frame(
qry={},
index='date',
values='price',
collection=self.collection,
)
assert_frame_equal(df, self.test_df)