refactoring out common method to base class

tests/base.py

@@ -1,4 +1,5 @@
 import os
+import re
 import shutil
 import unittest
 from os.path import exists, dirname, join
@@ -14,6 +15,23 @@ class DjangoCookieTestCase(unittest.TestCase):
     ctx = {}
     destpath = None
 
+    def check_paths(self, paths):
+        """
+        Method to check all paths have correct substitutions,
+        used by other tests cases
+        """
+        # Construct the cookiecutter search pattern
+        pattern = "{{(\s?cookiecutter)[.](.*?)}}"
+        re_obj = re.compile(pattern)
+
+        # Assert that no match is found in any of the files
+        for path in paths:
+            for line in open(path, 'r'):
+                match = re_obj.search(line)
+                self.assertIsNone(
+                    match,
+                    "cookiecutter variable not replaced in {}".format(path))
+
     def generate_project(self, extra_context=None):
         ctx = {
             "project_name": "My Test Project",

tests/test_cookiecutter_substitution.py

@@ -11,18 +11,7 @@ class TestCookiecutterSubstitution(DjangoCookieTestCase):
     def test_all_cookiecutter_instances_are_substituted(self):
         # Build a list containing absolute paths to the generated files
         paths = self.generate_project()
-
-        # Construct the cookiecutter search pattern
-        pattern = "{{(\s?cookiecutter)[.](.*?)}}"
-        re_obj = re.compile(pattern)
-
-        # Assert that no match is found in any of the files
-        for path in paths:
-            for line in open(path, 'r'):
-                match = re_obj.search(line)
-                self.assertIsNone(
-                    match,
-                    "cookiecutter variable not replaced in {}".format(path))
+        self.check_paths(paths)
 
     def test_flake8_complaince(self):
         """generated project should pass flake8"""