Add Band Name Generator project with CLI, tests, and documentation

tests/test_generator.py

@@ -0,0 +1,23 @@
+import unittest
+
+from band_name_generator.generator import generate_band_name
+
+
+class GenerateBandNameTests(unittest.TestCase):
+    def test_combines_city_and_pet(self):
+        self.assertEqual(generate_band_name("Paris", "Rex"), "Paris Rex")
+
+    def test_strips_whitespace(self):
+        self.assertEqual(generate_band_name("  Paris ", " Rex\n"), "Paris Rex")
+
+    def test_empty_city_raises(self):
+        with self.assertRaises(ValueError):
+            generate_band_name("", "Rex")
+
+    def test_blank_pet_raises(self):
+        with self.assertRaises(ValueError):
+            generate_band_name("Paris", "   ")
+
+
+if __name__ == "__main__":
+    unittest.main()