from __future__ import print_function, unicode_literals, absolute_import, division
import pkg_resources
from reahl.stubble import EasterEgg
#first we need some stub classes which in real life would be provided
# by another egg as entry points:
class StubClass1(object):
pass
class StubClass2(object):
pass
#then, we initialise the EasterEgg:
stub_egg = EasterEgg()
pkg_resources.working_set.add(stub_egg)
#then, use 1 of two methods to add the stubbed entry point classes:
group_name = 'xxx'
stub_egg.add_entry_point_from_line(group_name,
'test1 = examples.setuptools:StubClass1')
stub_egg.add_entry_point(group_name, 'test2', StubClass2)
#now, the actual code (which is presumably being tested)
# (we just print out each class it finds...)
for i in pkg_resources.iter_entry_points(group_name):
print(i.load())
class EasterEggTests(object):
class TestClass1(object):
pass
def setUp(self):
self.group_name = 'abc'
self.stub_egg = EasterEgg()
self.saved_working_set = pkg_resources.working_set
pkg_resources.working_set = pkg_resources.WorkingSet()
pkg_resources.working_set.add(self.stub_egg)
def tearDown(self):
pkg_resources.working_set = self.saved_working_set
@istest
def test_adding_entry_points_affect_entry_point_map(self):
self.stub_egg.add_entry_point_from_line(
self.group_name,
'test1 = reahl.stubble_dev.test_easteregg:EasterEggTests.TestClass1'
)
self.stub_egg.add_entry_point(self.group_name, 'test2', TestClass2)
epmap = self.stub_egg.get_entry_map()
assert list(epmap.keys()) == [self.group_name]
name_to_entry_point = list(epmap.values())[0]
assert len(list(name_to_entry_point.keys())) == 2
assert isinstance(name_to_entry_point['test1'],
pkg_resources.EntryPoint)
assert name_to_entry_point['test1'].load() is EasterEggTests.TestClass1
assert isinstance(name_to_entry_point['test2'],
pkg_resources.EntryPoint)
assert name_to_entry_point['test2'].load() is TestClass2
self.stub_egg.clear()
assert not self.stub_egg.get_entry_map()
@istest
def test_resource_api(self):
test_file = NamedTemporaryFile(mode='wb+')
dirname, file_name = os.path.split(test_file.name)
self.stub_egg.location = dirname
self.stub_egg.activate()
assert pkg_resources.resource_exists(self.stub_egg.as_requirement(),
file_name)
assert not pkg_resources.resource_exists(
self.stub_egg.as_requirement(), 'IDoNotExist')
contents = b'asdd '
test_file.write(contents)
test_file.flush()
as_string = pkg_resources.resource_string(
self.stub_egg.as_requirement(), file_name)
assert as_string == contents
as_file = pkg_resources.resource_stream(self.stub_egg.as_requirement(),
file_name)
assert as_file.read() == contents
@istest
def test_resource_api_from_module_name(self):
test_file = NamedTemporaryFile(mode='wb+', suffix='.py')
dirname, file_name = os.path.split(test_file.name)
self.stub_egg.location = dirname
self.stub_egg.activate()
module_name = file_name.split('.')[0]
assert pkg_resources.resource_exists(module_name, '')
assert pkg_resources.resource_filename(module_name, '') == dirname