def test_float(self):
f = Float32()
# check valid float
f.check(3.14)
# check non-float
with self.assertRaises(ValueError) as cm:
f.check('1.1')
self.assertIn('not a valid real', cm.exception.args[0])
f = Float64(min_value=0, max_value=100)
with self.assertRaises(ValueError) as cm:
f.check(101)
self.assertIn('is greater than', cm.exception.args[0])
with self.assertRaises(ParameterError) as cm:
Float64(min_value=0, max_value=10**330)
self.assertIn('too large for a float', cm.exception.args[0])
with self.assertRaises(ParameterError) as cm:
Float32(min_value=0, max_value=10**50)
self.assertIn('greater than the maximum value', cm.exception.args[0])
# check that bad ranges are rejected
self.assertRaises(ParameterError, lambda: Float64(min_value=1j))
self.assertRaises(ParameterError, lambda: Float64(max_value='10'))
def _make_namespace_with_a_union():
# type: (...) -> ApiNamespace
ns = ApiNamespace('ns_with_a_union')
u1 = Union(name='Union', namespace=ns, ast_node=None, closed=True)
u1.set_attributes(
doc=None,
fields=[
UnionField(name="first", doc=None, data_type=Void(),
ast_node=None),
UnionField(name="last", doc=None, data_type=Void(), ast_node=None),
],
)
ns.add_data_type(u1)
# A more interesting case with non-void variants.
shape_union = Union(name='Shape', namespace=ns, ast_node=None, closed=True)
shape_union.set_attributes(
doc=None,
fields=[
UnionField(name="point", doc=None, data_type=Void(),
ast_node=None),
UnionField(name="circle",
doc=None,
data_type=Float64(),
ast_node=None),
],
)
ns.add_data_type(shape_union)
return ns