[GitHub] Fokko closed pull request #3686: [AIRFLOW-2796] Expand code coverage for utils/helpers.py

[GitBox <gi...@apache.org>]

Fokko closed pull request #3686: [AIRFLOW-2796] Expand code coverage for utils/helpers.py
URL: https://github.com/apache/incubator-airflow/pull/3686
 
 
   

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diff --git a/tests/utils/test_helpers.py b/tests/utils/test_helpers.py
index 1005671e9e..b2e79560f4 100644
--- a/tests/utils/test_helpers.py
+++ b/tests/utils/test_helpers.py
@@ -117,5 +117,62 @@ def test_reduce_in_chunks(self):
                          14)
 
 
+class HelpersTest(unittest.TestCase):
+    def test_as_tuple_iter(self):
+        test_list = ['test_str']
+        as_tup = helpers.as_tuple(test_list)
+        self.assertTupleEqual(tuple(test_list), as_tup)
+
+    def test_as_tuple_no_iter(self):
+        test_str = 'test_str'
+        as_tup = helpers.as_tuple(test_str)
+        self.assertTupleEqual((test_str,), as_tup)
+
+    def test_is_in(self):
+        from airflow.utils import helpers
+        # `is_in` expects an object, and a list as input
+
+        test_dict = {'test': 1}
+        test_list = ['test', 1, dict()]
+        small_i = 3
+        big_i = 2 ** 31
+        test_str = 'test_str'
+        test_tup = ('test', 'tuple')
+
+        test_container = [test_dict, test_list, small_i, big_i, test_str, test_tup]
+
+        # Test that integers are referenced as the same object
+        self.assertTrue(helpers.is_in(small_i, test_container))
+        self.assertTrue(helpers.is_in(3, test_container))
+
+        # python caches small integers, so i is 3 will be True,
+        # but `big_i is 2 ** 31` is False.
+        self.assertTrue(helpers.is_in(big_i, test_container))
+        self.assertFalse(helpers.is_in(2 ** 31, test_container))
+
+        self.assertTrue(helpers.is_in(test_dict, test_container))
+        self.assertFalse(helpers.is_in({'test': 1}, test_container))
+
+        self.assertTrue(helpers.is_in(test_list, test_container))
+        self.assertFalse(helpers.is_in(['test', 1, dict()], test_container))
+
+        self.assertTrue(helpers.is_in(test_str, test_container))
+        self.assertTrue(helpers.is_in('test_str', test_container))
+        bad_str = 'test_'
+        bad_str += 'str'
+        self.assertFalse(helpers.is_in(bad_str, test_container))
+
+        self.assertTrue(helpers.is_in(test_tup, test_container))
+        self.assertFalse(helpers.is_in(('test', 'tuple'), test_container))
+        bad_tup = ('test', 'tuple', 'hello')
+        self.assertFalse(helpers.is_in(bad_tup[:2], test_container))
+
+    def test_is_container(self):
+        self.assertTrue(helpers.is_container(['test_list']))
+        self.assertFalse(helpers.is_container('test_str_not_iterable'))
+        # Pass an object that is not iter nor a string.
+        self.assertFalse(helpers.is_container(10))
+
+
 if __name__ == '__main__':
     unittest.main()


 

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