public void ReturnsNull_should_be_null_guarded()
{
NullGuardedConstraint.Assert(() =>
FakeExtensions.ReturnsNull(A.Fake <IReturnValueConfiguration <string> >()));
}
public void Once_should_throw_when_configuration_is_null()
{
Assert.Throws <ArgumentNullException>(() =>
FakeExtensions.Once((IRepeatConfiguration)null));
}
public void WriteCalls_should_throw_when_calls_is_null()
{
NullGuardedConstraint.Assert(() =>
FakeExtensions.Write(Enumerable.Empty <IFakeObjectCall>(), A.Dummy <IOutputWriter>()));
}