Follow naming convention for class methods

Signed-off-by: Haiko Schol <hs@haikoschol.com>

Author: haikoschol

vulnerabilities/tests/test_data_dump.py

@@ -45,9 +45,8 @@
 
 
 class TestDebianDataDump(TestCase):
-
     @classmethod
-    def setUpTestData(self):
+    def setUpTestData(cls):
         with open(os.path.join(TEST_DATA, 'debian.json')) as f:
             test_data = json.load(f)
 
@@ -122,7 +121,7 @@ def test_ResolvedPackage(self):
 
 class TestUbuntuDataDump(TestCase):
     @classmethod
-    def setUpTestData(self):
+    def setUpTestData(cls):
         with open(os.path.join(TEST_DATA, 'ubuntu_main.html')) as f:
             test_data = f.read()
 
@@ -144,9 +143,8 @@ def test_data_dump(self):
 
 
 class TestArchLinuxDataDump(TestCase):
-
     @classmethod
-    def setUpTestData(self):
+    def setUpTestData(cls):
         with open(os.path.join(TEST_DATA, 'archlinux.json')) as f:
             test_data = json.load(f)