corrscope/tests/test_config.py

112 wiersze
1.8 KiB
Python

# noinspection PyUnresolvedReferences
import sys
import pytest
from ruamel.yaml import yaml_object
from ovgenpy.config import register_config, yaml
# YAML Idiosyncrasies: https://docs.saltstack.com/en/develop/topics/troubleshooting/yaml_idiosyncrasies.html
def test_register_config():
@register_config
class Foo:
foo: int
bar: int
s = yaml.dump(Foo(1, 2))
assert s == '''\
!Foo
foo: 1
bar: 2
'''
def test_yaml_object():
@yaml_object(yaml)
class Bar:
pass
s = yaml.dump(Bar())
assert s == '!Bar {}\n'
def test_dump_defaults():
@register_config
class Config:
a: str = 'a'
b: str = 'b'
s = yaml.dump(Config('alpha'))
assert s == '''\
!Config
a: alpha
'''
@register_config(always_dump='a b')
class Config:
a: str = 'a'
b: str = 'b'
c: str = 'c'
s = yaml.dump(Config())
assert s == '''\
!Config
a: a
b: b
'''
@register_config(always_dump='*')
class Config:
a: str = 'a'
b: str = 'b'
s = yaml.dump(Config())
assert s == '''\
!Config
a: a
b: b
'''
def test_argument_validation():
""" Ensure that loading config via YAML catches missing and invalid parameters. """
@register_config
class Config:
a: int
yaml.load('''\
!Config
a: 1
''')
with pytest.raises(TypeError):
yaml.load('!Config {}')
with pytest.raises(TypeError):
yaml.load('''\
!Config
a: 1
b: 1
''')
def test_load_post_init():
""" yaml.load() does not natively call __post_init__. So @register_config modifies
__setstate__ to call __post_init__. """
@register_config
class Foo:
foo: int
def __post_init__(self):
self.foo = 99
s = '''\
!Foo
foo: 0
'''
assert yaml.load(s) == Foo(99)