Add the method to get formated item name and count.

src/fmt/item_formatter.py

@@ -17,3 +17,18 @@ class ItemFormatter(AbstractFormatter):
 
         return formated_message
 
+    def get_name_and_count_from_parts(self, parts: list):
+        line = " ".join(parts)
+
+        if not ', ' in line:
+            return {
+                'error': 'Не правильний формат'
+            }
+
+        name, count = line.split(', ')
+
+        return {
+            'name': name,
+            'count': int(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']
+