Add the method to get formated item name and count.

tests/fmt/test_item_formatter.py

@@ -36,3 +36,26 @@ def test_format_items():
 
     assert expected_format == items_fmt
 
+def test_get_name_and_count_from_parts():
+    name_and_count = 'Дуже довга назва страви, 10'
+
+    expected_name = 'Дуже довга назва страви'
+    expected_count = 10
+
+    formatter = ItemFormatter()
+
+    item = formatter.get_name_and_count_from_parts(name_and_count)
+    item_name, item_count = item['name'], item['count']
+
+    assert expected_name == item_name
+    assert expected_count == item_count
+
+def test_get_name_and_count_from_parts_invalid_command():
+    name_and_count = 'Дуже довга назва страви 10'
+
+    formatter = ItemFormatter()
+
+    error = formatter.get_name_and_count_from_parts(name_and_count)
+
+    assert 'Не правильний формат' == error['error']
+