Very first version of the migration checker and its tests

test_migration_checker.py

@@ -0,0 +1,17 @@
+import unittest
+
+import checker
+
+
+class CheckerTest(unittest.TestCase):
+    def test_split_migration_path(self):
+        input_path = 'apps/the_app/migrations/0001_stuff.py'
+        app, mig = checker.split_migration_path(input_path)
+        self.assertEqual(app, 'the_app')
+        self.assertEqual(mig, '0001_stuff')
+
+    def test_split_migration_path_2(self):
+        input_path = 'the_app/migrations/0001_stuff.py'
+        app, mig = checker.split_migration_path(input_path)
+        self.assertEqual(app, 'the_app')
+        self.assertEqual(mig, '0001_stuff')