bite 32

Author: boraxpr

32/inventory.py

@@ -0,0 +1,11 @@
+import copy
+items = [{'id': 1, 'name': 'laptop', 'value': 1000},
+         {'id': 2, 'name': 'chair', 'value': 300},
+         {'id': 3, 'name': 'book', 'value': 20}]
+
+
+def duplicate_items(items):
+    items_copy = copy.deepcopy(items)
+    return items_copy[:]
+
+# duplicate_items(items)

32/test_inventory.py

@@ -0,0 +1,19 @@
+from inventory import items, duplicate_items
+
+
+def test_change_copy_only():
+    items_copy = duplicate_items(items)
+    assert items == items_copy
+
+    # modify the copy
+    items_copy[0]['name'] = 'macbook'
+    items_copy[1]['id'] = 4
+    items_copy[2]['value'] = 30
+
+    # only copy should have been updated, check original items values
+    assert items[0]['name'] == 'laptop'
+    assert items[1]['id'] == 2
+    assert items[2]['value'] == 20
+
+
+test_change_copy_only()