File size: 2,530 Bytes
09a3fa9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | # Copyright (c) OpenMMLab. All rights reserved.
import pytest
from mmengine.utils import ManagerMeta, ManagerMixin
class SubClassA(ManagerMixin):
def __init__(self, name='', *args, **kwargs):
super().__init__(name, *args, **kwargs)
class SubClassB(ManagerMixin):
def __init__(self, name='', *args, **kwargs):
super().__init__(name, *args, **kwargs)
class TestGlobalMeta:
def test_init(self):
# Subclass's constructor does not contain name arguments will raise an
# error.
with pytest.raises(AssertionError):
class SubClassNoName1(metaclass=ManagerMeta):
def __init__(self, a, *args, **kwargs):
pass
# Valid subclass.
class GlobalAccessible1(metaclass=ManagerMeta):
def __init__(self, name):
self.name = name
class TestManagerMixin:
def test_init(self):
# test create instance by name.
base_cls = ManagerMixin('name')
assert base_cls.instance_name == 'name'
def test_get_instance(self):
# SubClass should manage their own `_instance_dict`.
with pytest.raises(RuntimeError):
SubClassA.get_current_instance()
SubClassA.get_instance('instance_a')
SubClassB.get_instance('instance_b')
assert SubClassB._instance_dict != SubClassA._instance_dict
# Test `message_hub` can create by name.
message_hub = SubClassA.get_instance('name1')
assert message_hub.instance_name == 'name1'
# No arguments will raise an assertion error.
SubClassA.get_instance('name2')
message_hub = SubClassA.get_current_instance()
message_hub.mark = -1
assert message_hub.instance_name == 'name2'
# Test get latest `message_hub` repeatedly.
message_hub = SubClassA.get_instance('name3')
assert message_hub.instance_name == 'name3'
message_hub = SubClassA.get_current_instance()
assert message_hub.instance_name == 'name3'
# Test get name2 repeatedly.
message_hub = SubClassA.get_instance('name2')
assert message_hub.mark == -1
# Non-string instance name will raise `AssertionError`.
with pytest.raises(AssertionError):
SubClassA.get_instance(name=1)
# `get_instance` should not accept other arguments if corresponding
# instance has been created.
with pytest.raises(AssertionError):
SubClassA.get_instance('name2', a=1, b=2)
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