Improve error raising and add initial tests

test.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+import glob
+import os.path
+from parameterized import parameterized
+import re
+import tempfile
+import unittest
+import warnings
+
+from description import parse_description, DescriptionParsingError
+
+class TestParseDescription(unittest.TestCase):
+  config = {
+    'aryion': 'UserAryion',
+    'furaffinity': 'UserFuraffinity',
+    'inkbunny': 'UserInkbunny',
+    'sofurry': 'UserSoFurry',
+    'weasyl': 'UserWeasyl',
+  }
+  define_options = {'test_parse_description'}
+
+  def setUp(self):
+    self.tmpdir = tempfile.TemporaryDirectory(ignore_cleanup_errors=True)
+    warnings.simplefilter('ignore', ResourceWarning)
+
+  def tearDown(self):
+    self.tmpdir.cleanup()
+    warnings.simplefilter('default', ResourceWarning)
+
+  @parameterized.expand([
+    (re.match(r'.*(input_\d+)\.txt', v)[1], v) for v in sorted(glob.iglob('./test/description/input_*.txt'))
+  ])
+  def test_parse_success(self, name, test_description):
+    with tempfile.TemporaryDirectory(ignore_cleanup_errors=True) as tmpdir:
+      parse_description(test_description, self.config, tmpdir, define_options=self.define_options)
+      for expected_output_file in glob.iglob(f'./test/description/output_{name[6:]}/*'):
+        received_output_file = os.path.join(tmpdir, os.path.split(expected_output_file)[1])
+        self.assertTrue(os.path.exists(received_output_file))
+        self.assertTrue(os.path.isfile(received_output_file))
+        with open(received_output_file, 'r') as f:
+          received_description = f.read()
+        with open(expected_output_file, 'r') as f:
+          expected_description = f.read()
+        self.assertEqual(received_description, expected_description)
+
+  @parameterized.expand([
+    (re.match(r'.*(error_.+)\.txt', v)[1], v) for v in sorted(glob.iglob('./test/description/error_*.txt'))
+  ])
+  def test_parse_errors(self, _, test_description):
+    self.assertRaises(DescriptionParsingError, lambda: parse_description(test_description, self.config, self.tmpdir.name, define_options=self.define_options))
+    self.assertListEqual(glob.glob(os.path.join(self.tmpdir.name, '*')), [])
+
+
+if __name__ == '__main__':
+    unittest.main()