修改前后 diff
--- a/app.py
+++ b/app.py
@@ -1,2 +1,4 @@
+from decimal import Decimal
+
def subtotal(prices):
- return round(sum(float(p) for p in prices), 2)
+ return sum((Decimal(p) for p in prices), Decimal('0')).quantize(Decimal('0.01'))
真实测试记录
before exit=1\ntest_contract (test_app.LessonTest.test_contract) ... FAIL
======================================================================
FAIL: test_contract (test_app.LessonTest.test_contract)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/lorin/my-clone/quickrout/public/downloads/tutorials-batch50b-20261014/practical/opencode-failing-test-repair/before/test_app.py", line 7, in test_contract
self.assertEqual(subtotal(['0.10', '0.20']), Decimal('0.30'))
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 0.3 != Decimal('0.30')
----------------------------------------------------------------------
Ran 1 test in 0.000s
FAILED (failures=1)
\nfixed exit=0\ntest_contract (test_app.LessonTest.test_contract) ... ok
----------------------------------------------------------------------
Ran 1 test in 0.000s
OK
标准库测试真实运行；参考代码人工编写，未执行 OpenCode 或付费模型。