Add a chord parser test.

1 files changed, 39 insertions, 0 deletions

diff --git a/tests/chords_test.py b/tests/chords_test.py
new file mode 100755
index 0000000..6776f3f
--- /dev/null
+++ b/tests/chords_test.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+
+# © Copyright 2021-2022, Scott Gasch
+
+"""chord parser unittest"""
+
+import unittest
+
+from music.chords import ChordParser
+
+import bootstrap
+import unittest_utils as uu
+
+
+class TestChordParder(unittest.TestCase):
+    def test_with_known_correct_answers(self):
+        expected_answers = {
+            'D': "root=D, others={'maj3': 4, 'perfect5th': 7}",
+            'Dmaj': "root=D, others={'maj3': 4, 'perfect5th': 7}",
+            'D major': "root=D, others={'maj3': 4, 'perfect5th': 7}",
+            'DM': "root=D, others={'maj3': 4, 'perfect5th': 7}",
+            'Dm': "root=D, others={'min3': 3, 'perfect5th': 7}",
+            'Dmin': "root=D, others={'min3': 3, 'perfect5th': 7}",
+            'D minor': "root=D, others={'min3': 3, 'perfect5th': 7}",
+            'Asus2': "root=A, others={'maj2': 2, 'perfect5th': 7}",
+            'Bsus4': "root=B, others={'perfect4': 5, 'perfect5th': 7}",
+            'F5': "root=F, others={'perfect5th': 7}",
+            'G/B': "root=G, others={'maj3': 4, 'perfect5th': 7, 'B': 3}",
+        }
+
+        cp = ChordParser()
+        for chord_name, expected_answer in expected_answers.items():
+            self.assertEqual(
+                expected_answer, cp.parse(chord_name).__repr__(), f'Failed for {chord_name}'
+            )
+
+
+if __name__ == '__main__':
+    bootstrap.initialize(unittest.main)()