add basic test for multiprocessing_utils so pr coverage does not go down

#35 open multiprocessing log in context handler

Author: codekiln

tests/test_multiprocessing_utils.py

@@ -0,0 +1,34 @@
+from multiprocessing import cpu_count
+
+from django.test import TestCase
+
+from django_elastic_migrations.utils.multiprocessing_utils import DjangoMultiProcess
+
+
+def add_1(num):
+    return { 'job_id': num, 'result': num + 1 }
+
+
+class TestMultiprocessingUtils(TestCase):
+
+    def test_basic_multiprocessing(self):
+        """
+        Do a basic test of DjangoMultiProcess that doesn't touch the database
+        :return:
+        :rtype:
+        """
+
+        one_to_ten = range(1, 10)
+
+        workers = cpu_count()
+        django_multiprocess = DjangoMultiProcess(workers, log_debug_info=3)
+
+        with django_multiprocess:
+            django_multiprocess.map(add_1, one_to_ten)
+
+        results = django_multiprocess.results()
+
+        for result_obj in results:
+            job_id = result_obj.get('job_id')
+            result = result_obj.get('result')
+            self.assertEqual(job_id + 1, result)