为什么python模拟assert_any_call不匹配

Question

给出assert_any_call的文档

我有一个日志语句想要断言

...
logger.warning('Backup quantity is 0, supplied uuids %s, matched machines: %s', uuids, machines)
...

查看我的单元测试的最后 3 行（前 2 行仅用于调查目的）

# deliberate fail so it prints what it expects
logger.warning.assert_not_called()

# prints the params used in the official assert
print('Backup quantity is 0, supplied uuids %s, matched machines: %s', [vm3_uuid], VirtualMachine.objects.none())

# actual official assert
logger.warning.assert_any_call('Backup quantity is 0, supplied uuids %s, matched machines: %s', [vm3_uuid], VirtualMachine.objects.none())

测试的输出

assert_not_called

是：

AssertionError: Expected 'warning' to not have been called. Called 2 times.
Calls: [call('Backup quantity is 0, supplied uuids %s, matched machines: %s', ['232d7937-975c-457b-8a11-ac473d0e04a0'], <QuerySet []>),
 call('%s %s cannot find proxmox UUID from BIS', 'DEF-456', 'vm4')]

参数打印是

Backup quantity is 0, supplied uuids %s, matched machines: %s ['232d7937-975c-457b-8a11-ac473d0e04a0'] <QuerySet []>

官方断言失败

AssertionError: warning('Backup quantity is 0, supplied uuids %s, matched machines: %s', ['232d7937-975c-457b-8a11-ac473d0e04a0'], <QuerySet []>) call not found

除非我错过了一些非常明显的东西，否则我不知道为什么

assert_any_call

会失败？

Answer 1

您拨打了

VirtualMachine.objects.none()

两次。这会产生两个不同的、不平等的物体。