def test_static_requires(self):
with self.assertRaises(dependency.MissingRequirementError):
@dependency.requires('test-req')
class TestClassA(object):
pass
with self.assertRaises(dependency.MissingRequirementError):
@dependency.requires('test-req')
def test_funcA():
pass
with dependency.provides('test-req'):
@dependency.requires('test-req')
class TestClassB(object):
pass
@dependency.requires('test-req')
def test_funcB():
pass
def test_dynamic_requires(self):
class TestClass(object):
@dependency.requires('test-req', dynamic=True)
def func(self):
pass
@dependency.requires('test-req', dynamic=True)
def test_func():
pass
obj = TestClass()
with dependency.provides('test-req'):
obj.func()
test_func()
with self.assertRaises(dependency.MissingRequirementError):
obj.func()
with self.assertRaises(dependency.MissingRequirementError):
test_func()
def test_multiple_provision(self):
@dependency.provides('test-req-A')
def funcA():
pass
with self.assertRaises(dependency.MissingRequirementError):
@dependency.requires('test-req-A', 'test-req-B')
def funcB():
pass
with dependency.provides('test-req-A', 'test-req-B'):
@dependency.requires('test-req-A', 'test-req-B')
def funcC():
pass
@dependency.requires('test-req-A')
def funcD():
pass
with self.assertRaises(dependency.MissingRequirementError):
@dependency.requires('test-req-B')
def funcE():
pass
def test_mixed_requirements(self):
@dependency.provides('test-req-A')
def funcA():
pass
@dependency.provides('test-req-B')
@dependency.requires('test-req-A')
def funcB():
pass
@dependency.requires('test-req-A', 'test-req-B')
def funcC():
pass
@dependency.requires('test-req-A', 'test-req-B')
@dependency.requires('test-req-C', dynamic=True)
def funcD():
pass
with self.assertRaises(dependency.MissingRequirementError):
funcD()
with dependency.provides('test-req-C'):
funcD()
def test_context_provides(self):
self.assertNotIn('test-req', dependency.Requirement.instances)
with dependency.provides('test-req'):
self.assertIn('test-req', dependency.Requirement.instances)