flatten-array: add test template (exercism#2089)

alexpjohnson · cmccandless · commit b988ba51b0af · 2019-10-25T10:07:25.000-04:00
diff --git a/exercises/flatten-array/.meta/template.j2 b/exercises/flatten-array/.meta/template.j2
@@ -0,0 +1,13 @@
+{%- import "generator_macros.j2" as macros with context -%}
+{{ macros.header() }}
+
+class {{ exercise | camel_case }}Test(unittest.TestCase):
+    {% for case in cases -%}
+    def test_{{ case["description"] | to_snake }}(self):
+        inputs = {{ case["input"]["array"] }}
+        expected = {{ case["expected"] }}
+        self.assertEqual({{ case["property"] }}(inputs), expected)
+
+    {% endfor %}
+
+{{ macros.footer() }}
diff --git a/exercises/flatten-array/flatten_array_test.py b/exercises/flatten-array/flatten_array_test.py
@@ -2,46 +2,40 @@
 
 from flatten_array import flatten
 
-
 # Tests adapted from `problem-specifications//canonical-data.json` @ v1.2.0
 
-class FlattenArrayTest(unittest.TestCase):
 
+class FlattenArrayTest(unittest.TestCase):
     def test_no_nesting(self):
-        self.assertEqual(flatten([0, 1, 2]), [0, 1, 2])
+        inputs = [0, 1, 2]
+        expected = [0, 1, 2]
+        self.assertEqual(flatten(inputs), expected)
 
-    def test_flatten_integers(self):
+    def test_flattens_array_with_just_integers_present(self):
         inputs = [1, [2, 3, 4, 5, 6, 7], 8]
         expected = [1, 2, 3, 4, 5, 6, 7, 8]
         self.assertEqual(flatten(inputs), expected)
 
-    def test_five_level_nesting(self):
+    def test_5_level_nesting(self):
         inputs = [0, 2, [[2, 3], 8, 100, 4, [[[50]]]], -2]
         expected = [0, 2, 2, 3, 8, 100, 4, 50, -2]
         self.assertEqual(flatten(inputs), expected)
 
-    def test_six_level_nesting(self):
+    def test_6_level_nesting(self):
         inputs = [1, [2, [[3]], [4, [[5]]], 6, 7], 8]
         expected = [1, 2, 3, 4, 5, 6, 7, 8]
         self.assertEqual(flatten(inputs), expected)
 
-    def test_with_none_values(self):
+    def test_6_level_nest_list_with_null_values(self):
         inputs = [0, 2, [[2, 3], 8, [[100]], None, [[None]]], -2]
         expected = [0, 2, 2, 3, 8, 100, -2]
         self.assertEqual(flatten(inputs), expected)
 
-    def test_all_values_are_none(self):
+    def test_all_values_in_nested_list_are_null(self):
         inputs = [None, [[[None]]], None, None, [[None, None], None], None]
         expected = []
         self.assertEqual(flatten(inputs), expected)
 
-    # Additional tests for this track
-    def test_empty_nested_lists(self):
-        self.assertEqual(flatten([[()]]), [])
-
-    def test_strings(self):
-        self.assertEqual(flatten(['0', ['1', '2']]), ['0', '1', '2'])
-
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     unittest.main()
