tiramisu/test/test_option_validator.py

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import autopath
from py.test import raises
from tiramisu.config import Config
from tiramisu.option import StrOption, OptionDescription
from tiramisu.error import ConfigError
def return_true(value, param=None):
if value == 'val' and param in [None, 'yes']:
return True
def return_false(value, param=None):
if value == 'val' and param in [None, 'yes']:
return False
def return_val(value, param=None):
return 'val'
def test_validator():
opt1 = StrOption('opt1', '', validator=return_true, default='val')
raises(ValueError, "StrOption('opt2', '', validator=return_false, default='val')")
raises(ConfigError, "StrOption('opt3', '', validator=return_val, default='val')")
opt2 = StrOption('opt2', '', validator=return_false)
opt3 = StrOption('opt3', '', validator=return_val)
root = OptionDescription('root', '', [opt1, opt2, opt3])
cfg = Config(root)
assert cfg.opt1 == 'val'
raises(ValueError, "cfg.opt2 = 'val'")
raises(ConfigError, "cfg.opt3 = 'val'")
def test_validator_params():
opt1 = StrOption('opt1', '', validator=return_true, validator_params={'': ('yes',)}, default='val')
raises(ValueError, "StrOption('opt2', '', validator=return_false, validator_params={'': ('yes',)}, default='val')")
raises(ConfigError, "StrOption('opt3', '', validator=return_val, validator_params={'': ('yes',)}, default='val')")
opt2 = StrOption('opt2', '', validator=return_false, validator_params={'': ('yes',)})
opt3 = StrOption('opt3', '', validator=return_val, validator_params={'': ('yes',)})
root = OptionDescription('root', '', [opt1, opt2, opt3])
cfg = Config(root)
assert cfg.opt1 == 'val'
raises(ValueError, "cfg.opt2 = 'val'")
raises(ConfigError, "cfg.opt3 = 'val'")
def test_validator_params_key():
opt1 = StrOption('opt1', '', validator=return_true, validator_params={'param': ('yes',)}, default='val')
raises(TypeError, "StrOption('opt2', '', validator=return_true, validator_params={'param_unknown': ('yes',)}, default='val')")
root = OptionDescription('root', '', [opt1])
cfg = Config(root)
assert cfg.opt1 == 'val'
def test_validator_params_option():
opt0 = StrOption('opt0', '', default='val')
raises(ValueError, "opt1 = StrOption('opt1', '', validator=return_true, validator_params={'': ((opt0, False),)}, default='val')")