public void GetExists()
{
int key = 1;
Expression <Func <Customer, bool> > predicate = x => true;
var options = new QueryOptions <Customer>();
var mock = new Mock <IService <Customer> >();
mock.Setup(x => x.GetExists(It.IsAny <int>()));
mock.Setup(x => x.GetExists(It.IsAny <Expression <Func <Customer, bool> > >()));
mock.Setup(x => x.GetExists(It.IsAny <IQueryOptions <Customer> >()));
var readOnlyService = new ReadOnlyServiceWrapper <Customer, int>(mock.Object);
readOnlyService.GetExists(key);
readOnlyService.GetExists(predicate);
readOnlyService.GetExists(options);
mock.Verify(x => x.GetExists(key), Times.Once);
mock.Verify(x => x.GetExists(predicate), Times.Once);
mock.Verify(x => x.GetExists(options), Times.Once);
}
