Added unit tests

tests/test_todo_parser.py

@@ -93,6 +93,7 @@ def test_nix_issues(self):
     def test_xaml_issues(self):
         self.assertEqual(count_issues_for_file_type(self.raw_issues, 'xml'), 2)
 
+
 class ClosedIssueTests(unittest.TestCase):
     # Check for removed TODOs across the files specified.
     def setUp(self):
@@ -173,6 +174,7 @@ def test_nix_issues(self):
     def test_xaml_issues(self):
         self.assertEqual(count_issues_for_file_type(self.raw_issues, 'xml'), 2)
 
+
 class IgnorePatternTests(unittest.TestCase):
 
     def test_single_ignore(self):
@@ -205,6 +207,7 @@ def test_multiple_ignores(self):
         self.assertEqual(count_issues_for_file_type(self.raw_issues, 'ruby'), 5)
         os.environ['INPUT_IGNORE'] = ''
 
+
 class EscapeMarkdownTest(unittest.TestCase):
     def test_simple_escape(self):
         os.environ['INPUT_ESCAPE'] = 'true'
@@ -227,3 +230,47 @@ def test_simple_escape(self):
         self.assertEqual(issue.body[0], '\\# Another title')
         self.assertEqual(issue.body[1], '\\<AnotherTag\\>')
 
+
+class CostumeLanguageTest(unittest.TestCase):
+    def test_costume_lang_load(self):
+        os.environ['INPUT_LANGUAGES'] = 'tests/costume_languages.json'
+        parser = TodoParser()
+        # Test if the costume language ILS is actually loaded into the system
+        self.assertIsNotNone(parser.languages_dict['ILS'])
+        self.assertEqual(self.count_syntax(parser, 'ILS'), 1)
+
+    def test_costume_lang_not_dupplicate(self):
+        os.environ['INPUT_LANGUAGES'] = 'tests/costume_languages.json'
+        parser = TodoParser()
+
+        # Test if a costume language can overwrite the rules of an existing one
+        self.assertEqual(self.count_syntax(parser, 'Java'), 1)
+        for syntax in parser.syntax_dict:
+            if syntax['language'] == 'Java':
+                self.assertEqual(len(syntax['markers']), 2)
+                self.assertEqual(syntax['markers'][0]['pattern'], "////")
+                self.assertEqual(syntax['markers'][1]['pattern']['start'], '+=')
+                self.assertEqual(syntax['markers'][1]['pattern']['end'], '=+')
+                break
+
+        self.assertIsNotNone(parser.languages_dict['Java'])
+        self.assertEqual(len(parser.languages_dict['Java']['extensions']), 1)
+        self.assertEqual(parser.languages_dict['Java']['extensions'][0], ".java2")
+
+    def test_url_load(self):
+        os.environ['INPUT_LANGUAGES'] = 'https://raw.githubusercontent.com/Christoph-Koschel/todo-to-issue-action/patch-3/tests/costume_languages.json'
+        os.environ['INPUT_NO_STANDARD'] = 'true'
+        parser = TodoParser()
+
+        self.assertEqual(len(parser.languages_dict), 2)
+        self.assertEqual(len(parser.syntax_dict), 2)
+
+    @staticmethod
+    def count_syntax(parser: TodoParser, name: str):
+        counter = 0
+
+        for syntax in parser.syntax_dict:
+            if syntax['language'] == name:
+                counter = counter + 1
+
+        return counter