本文整理汇总了Python中spack.spec.Spec.constrain方法的典型用法代码示例。如果您正苦于以下问题：Python Spec.constrain方法的具体用法？Python Spec.constrain怎么用？Python Spec.constrain使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类spack.spec.Spec的用法示例。
在下文中一共展示了Spec.constrain方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: check_invalid_constraint
# 需要导入模块: from spack.spec import Spec [as 别名]
# 或者: from spack.spec.Spec import constrain [as 别名]
def check_invalid_constraint(spec, constraint):
spec = Spec(spec)
constraint = Spec(constraint)
with pytest.raises(UnsatisfiableSpecError):
spec.constrain(constraint)示例2: check_constrain
# 需要导入模块: from spack.spec import Spec [as 别名]
# 或者: from spack.spec.Spec import constrain [as 别名]
def check_constrain(expected, spec, constraint):
exp = Spec(expected)
spec = Spec(spec)
constraint = Spec(constraint)
spec.constrain(constraint)
assert exp == spec示例3: check_constrain_not_changed
# 需要导入模块: from spack.spec import Spec [as 别名]
# 或者: from spack.spec.Spec import constrain [as 别名]
def check_constrain_not_changed(spec, constraint):
spec = Spec(spec)
assert not spec.constrain(constraint)示例4: test_unsatisfiable_multi_value_variant
# 需要导入模块: from spack.spec import Spec [as 别名]
# 或者: from spack.spec.Spec import constrain [as 别名]
def test_unsatisfiable_multi_value_variant(self):
# Semantics for a multi-valued variant is different
# Depending on whether the spec is concrete or not
a = target_factory(
'multivalue_variant foo="bar"', target_concrete=True
)
spec_str = 'multivalue_variant foo="bar,baz"'
b = Spec(spec_str)
assert not a.satisfies(b)
assert not a.satisfies(spec_str)
# A concrete spec cannot be constrained further
with pytest.raises(UnsatisfiableSpecError):
a.constrain(b)
a = Spec('multivalue_variant foo="bar"')
spec_str = 'multivalue_variant foo="bar,baz"'
b = Spec(spec_str)
# The specs are abstract and they **could** be constrained
assert a.satisfies(b)
assert a.satisfies(spec_str)
# An abstract spec can instead be constrained
assert a.constrain(b)
a = target_factory(
'multivalue_variant foo="bar,baz"', target_concrete=True
)
spec_str = 'multivalue_variant foo="bar,baz,quux"'
b = Spec(spec_str)
assert not a.satisfies(b)
assert not a.satisfies(spec_str)
# A concrete spec cannot be constrained further
with pytest.raises(UnsatisfiableSpecError):
a.constrain(b)
a = Spec('multivalue_variant foo="bar,baz"')
spec_str = 'multivalue_variant foo="bar,baz,quux"'
b = Spec(spec_str)
# The specs are abstract and they **could** be constrained
assert a.satisfies(b)
assert a.satisfies(spec_str)
# An abstract spec can instead be constrained
assert a.constrain(b)
# ...but will fail during concretization if there are
# values in the variant that are not allowed
with pytest.raises(InvalidVariantValueError):
a.concretize()
# This time we'll try to set a single-valued variant
a = Spec('multivalue_variant fee="bar"')
spec_str = 'multivalue_variant fee="baz"'
b = Spec(spec_str)
# The specs are abstract and they **could** be constrained,
# as before concretization I don't know which type of variant
# I have (if it is not a BV)
assert a.satisfies(b)
assert a.satisfies(spec_str)
# A variant cannot be parsed as single-valued until we try to
# concretize. This means that we can constrain the variant above
assert a.constrain(b)
# ...but will fail during concretization if there are
# multiple values set
with pytest.raises(MultipleValuesInExclusiveVariantError):
a.concretize()