Move tests in a new directory, closes #8

dungeonbattle/tests/interfaces_test.py

@@ -0,0 +1,14 @@
+import unittest
+
+from dungeonbattle.interfaces import Map
+
+
+class TestInterfaces(unittest.TestCase):
+    def test_map(self) -> None:
+        """
+        Create a map and check that it is well parsed.
+        """
+        m = Map.load_from_string(".█\n█.\n")
+        self.assertEqual(m.width, 2)
+        self.assertEqual(m.height, 2)
+        self.assertEqual(m.draw_string(), ".█\n█.")