def test_representation(self):
a = Variant('foo',
default='',
description='',
values=('bar', 'baz', 'foobar'),
multi=False)
assert a.allowed_values == 'bar, baz, foobar'
def _execute(pkg):
if not re.match(spack.spec.identifier_re, name):
directive = 'variant'
msg = "Invalid variant name in {0}: '{1}'"
raise DirectiveError(directive, msg.format(pkg.name, name))
pkg.variants[name] = Variant(default, description)
def test_validation(self):
a = Variant('foo',
default='',
description='',
values=('bar', 'baz', 'foobar'),
multi=False)
# Valid vspec, shouldn't raise
vspec = a.make_variant('bar')
a.validate_or_raise(vspec)
# Multiple values are not allowed
with pytest.raises(MultipleValuesInExclusiveVariantError):
vspec.value = 'bar,baz'
# Inconsistent vspec
vspec.name = 'FOO'
with pytest.raises(InconsistentValidationError):
a.validate_or_raise(vspec)
# Valid multi-value vspec
a.multi = True
vspec = a.make_variant('bar,baz')
a.validate_or_raise(vspec)
# Add an invalid value
vspec.value = 'bar,baz,barbaz'
with pytest.raises(InvalidVariantValueError):
a.validate_or_raise(vspec)
def variant(pkg, name, default=False, description=""):
"""Define a variant for the package. Packager can specify a default
value (on or off) as well as a text description."""
default = bool(default)
description = str(description).strip()
if not re.match(spack.spec.identifier_re, name):
raise DirectiveError("Invalid variant name in %s: '%s'" %
(pkg.name, name))
pkg.variants[name] = Variant(default, description)
def test_callable_validator(self):
def validator(x):
try:
return isinstance(int(x), numbers.Integral)
except ValueError:
return False
a = Variant('foo',
default=1024,
description='',
values=validator,
multi=False)
vspec = a.make_default()
a.validate_or_raise(vspec)
vspec.value = 2056
a.validate_or_raise(vspec)
vspec.value = 'foo'
with pytest.raises(InvalidVariantValueError):
a.validate_or_raise(vspec)