Integrate additional checks of base.py with slight improvements

tests/test_cookiecutter_generation.py

@@ -1,6 +1,14 @@
 # -*- coding: utf-8 -*-
 
+import os
+import re
+
 import pytest
+from binaryornot.check import is_binary
+
+PATTERN = "{{(\s?cookiecutter)[.](.*?)}}"
+RE_OBJ = re.compile(PATTERN)
+
 
 @pytest.fixture
 def context():
@@ -18,6 +26,36 @@ def context():
     }
 
 
+def build_files_list(root_dir):
+    """Build a list containing absolute paths to the generated files."""
+    return [
+        os.path.join(dirpath, file_path)
+        for dirpath, subdirs, files in os.walk(root_dir)
+        for file_path in files
+    ]
+
+    
+def check_paths(paths):
+    """Method to check all paths have correct substitutions,
+    used by other tests cases
+    """
+    # Assert that no match is found in any of the files
+    for path in paths:
+        if is_binary(path):
+            continue
+        for line in open(path, 'r'):
+            match = RE_OBJ.search(line)
+            msg = "cookiecutter variable not replaced in {}"
+            assert match is None, msg.format(path)
+
+
 def test_default_configuration(cookies, context):
     result = cookies.bake(extra_context=context)
     assert result.exit_code == 0
+    assert result.exception is None
+    assert result.project.basename == context['repo_name']
+    assert result.project.isdir()
+
+    paths = build_files_list(str(result.project))
+    assert paths
+    check_paths(paths)