Files
pycapnp/test/test_struct.py
2014-06-26 01:07:54 -07:00

190 lines
4.7 KiB
Python

import pytest
import capnp
import os
import tempfile
import sys
this_dir = os.path.dirname(__file__)
@pytest.fixture
def addressbook():
return capnp.load(os.path.join(this_dir, 'addressbook.capnp'))
@pytest.fixture
def all_types():
return capnp.load(os.path.join(this_dir, 'all_types.capnp'))
def test_which_builder(addressbook):
addresses = addressbook.AddressBook.new_message()
people = addresses.init('people', 2)
alice = people[0]
alice.employment.school = "MIT"
assert alice.employment.which == addressbook.Person.Employment.school
assert alice.employment.which == "school"
bob = people[1]
assert bob.employment.which == addressbook.Person.Employment.unemployed
assert bob.employment.which == "unemployed"
bob.employment.unemployed = None
assert bob.employment.which == addressbook.Person.Employment.unemployed
assert bob.employment.which == "unemployed"
with pytest.raises(ValueError):
addresses.which
with pytest.raises(ValueError):
addresses.which
def test_which_reader(addressbook):
def writeAddressBook(fd):
message = capnp._MallocMessageBuilder()
addressBook = message.init_root(addressbook.AddressBook)
people = addressBook.init('people', 2)
alice = people[0]
alice.employment.school = "MIT"
bob = people[1]
bob.employment.unemployed = None
capnp._write_packed_message_to_fd(fd, message)
f = tempfile.TemporaryFile()
writeAddressBook(f.fileno())
f.seek(0)
addresses = addressbook.AddressBook.read_packed(f)
people = addresses.people
alice = people[0]
assert alice.employment.which == "school"
bob = people[1]
assert bob.employment.which == "unemployed"
with pytest.raises(ValueError):
addresses.which
with pytest.raises(ValueError):
addresses.which
@pytest.mark.skipif(capnp.version.LIBCAPNP_VERSION < 5000, reason="Using ints as enums requires v0.5.0+ of the C++ capnp library")
def test_enum(addressbook):
addresses = addressbook.AddressBook.new_message()
people = addresses.init('people', 2)
alice = people[0]
phones = alice.init('phones', 2)
assert phones[0].type == phones[1].type
phones[0].type = addressbook.Person.PhoneNumber.Type.home
assert phones[0].type != phones[1].type
phones[1].type = 'home'
assert phones[0].type == phones[1].type
def test_builder_set(addressbook):
person = addressbook.Person.new_message()
person.name = 'test'
assert person.name == 'test'
with pytest.raises(AttributeError):
person.foo = 'test'
def test_null_str(all_types):
msg = all_types.TestAllTypes.new_message()
msg.textField = "f\x00oo"
msg.dataField = b"b\x00ar"
assert msg.textField == "f\x00oo"
assert msg.dataField == b"b\x00ar"
def test_unicode_str(all_types):
msg = all_types.TestAllTypes.new_message()
if sys.version_info[0] == 2:
msg.textField = u"f\u00e6oo".encode('utf-8')
assert msg.textField.decode('utf-8') == u"f\u00e6oo"
else:
msg.textField = "f\u00e6oo"
assert msg.textField == "f\u00e6oo"
def test_new_message(all_types):
msg = all_types.TestAllTypes.new_message(int32Field=100)
assert msg.int32Field == 100
msg = all_types.TestAllTypes.new_message(structField={'int32Field': 100})
assert msg.structField.int32Field == 100
msg = all_types.TestAllTypes.new_message(structList=[{'int32Field': 100}, {'int32Field': 101}])
assert msg.structList[0].int32Field == 100
assert msg.structList[1].int32Field == 101
msg = all_types.TestAllTypes.new_message(int32Field=100)
assert msg.int32Field == 100
msg = all_types.TestAllTypes.new_message(**{'int32Field': 100, 'int64Field': 101})
assert msg.int32Field == 100
assert msg.int64Field == 101
def test_set_dict(all_types):
msg = all_types.TestAllTypes.new_message()
msg.structField = {'int32Field': 100}
assert msg.structField.int32Field == 100
msg.init('structList', 2)
msg.structList[0] = {'int32Field': 102}
assert msg.structList[0].int32Field == 102
def test_set_dict_union(addressbook):
person = addressbook.Person.new_message(**{'employment': {'employer': {'name': 'foo'}}})
assert person.employment.employer.name == 'foo'
try:
basestring # attempt to evaluate basestring
def isstr(s):
return isinstance(s, basestring)
except NameError:
def isstr(s):
return isinstance(s, str)
def test_to_dict_enum(addressbook):
person = addressbook.Person.new_message(**{'phones': [{'number': '999-9999', 'type': 'mobile'}]})
field = person.to_dict()['phones'][0]['type']
assert isstr(field)
assert field == 'mobile'