public async Task GetCountAsync()
{
Expression <Func <Customer, bool> > predicate = x => true;
var options = new QueryOptions <Customer>();
var mock = new Mock <IService <Customer> >();
mock.Setup(x => x.GetCountAsync(default(CancellationToken)));
mock.Setup(x => x.GetCountAsync(It.IsAny <Expression <Func <Customer, bool> > >(), It.IsAny <CancellationToken>()));
mock.Setup(x => x.GetCountAsync(It.IsAny <IQueryOptions <Customer> >(), It.IsAny <CancellationToken>()));
var readOnlyService = new ReadOnlyServiceWrapper <Customer, int>(mock.Object);
await readOnlyService.GetCountAsync();
await readOnlyService.GetCountAsync(predicate);
await readOnlyService.GetCountAsync(options);
mock.Verify(x => x.GetCountAsync(default(CancellationToken)), Times.Once);
mock.Verify(x => x.GetCountAsync(predicate, default(CancellationToken)), Times.Once);
mock.Verify(x => x.GetCountAsync(options, default(CancellationToken)), Times.Once);
}
