Add an application test

This new test runs the app as the user would with a bit of configuration

.github/workflows/tests.yml

@@ -26,3 +26,7 @@ jobs:
       - name: Run NSIQCppStyle RULES tests
         timeout-minutes: 5
         run: PYTHONPATH=./:./rules python -m unittest discover -s rules -p "*.py"
+
+      - name: Run NSIQCppStyle App tests
+        timeout-minutes: 5
+        run: python nsiqcppstyle_exe.py -f nsiqunittest/resx/filefilter.example.txt --ci nsiqunittest/resx/example.cpp

nsiqunittest/resx/example.cpp

@@ -0,0 +1,4 @@
+int main(int argc, char* argv[])
+{
+    return 1;
+}

nsiqunittest/resx/filefilter.example.txt

@@ -0,0 +1,11 @@
+# This filefilter is here to ensure that the app:
+#   - handles comments properly
+#   - handles empty lines correctly
+
+~ RULE_3_1_A_do_not_start_filename_with_underbar
+~ RULE_3_3_A_start_function_name_with_lowercase_unix
+~ RULE_3_3_B_start_private_function_name_with_underbar
+~ RULE_4_5_B_use_braces_even_for_one_statement
+~ RULE_7_2_B_do_not_use_goto_statement
+~ RULE_9_1_A_do_not_use_hardcorded_include_path
+~ RULE_9_2_D_use_reentrant_function