YesSql.Tests.CoreTests.ShouldQueryByMappedIndex C# (CSharp) Method

        public async Task ShouldQueryByMappedIndex()
        {
            _store.RegisterIndexes<PersonIndexProvider>();

            using (var session = _store.CreateSession())
            {
                var bill = new Person
                {
                    Firstname = "Bill",
                    Lastname = "Gates",
                };

                var steve = new Person
                {
                    Firstname = "Steve",
                    Lastname = "Balmer"
                };

                session.Save(bill);
                session.Save(steve);
            }

            using (var session = _store.CreateSession())
            {
                Assert.Equal(2, await session.QueryAsync().For<Person>().With<PersonByName>().Count());
                Assert.Equal(1, await session.QueryAsync().For<Person>().With<PersonByName>(x => x.Name == "Steve").Count());
                Assert.Equal(1, await session.QueryAsync().For<Person>().With<PersonByName>().Where(x => x.Name == "Steve").Count());
            }
        }