/Tests/Tests.cs

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//#define POSTGRESQL // uncomment to run postgres tests

using System;

using System.Collections.Generic;

using System.Data.SqlClient;

using System.Linq;

using Dapper;

using System.Data.SqlServerCe;

using System.IO;

using System.Data;

using System.Collections;

using System.Reflection;

using System.Dynamic;

using System.ComponentModel;

using Microsoft.CSharp.RuntimeBinder;

#if POSTGRESQL

using Npgsql;

#endif



namespace SqlMapper

{



    class Tests

    {

        SqlConnection connection = Program.GetOpenConnection();



        public class AbstractInheritance

        {

            public abstract class Order

            {

                internal int Internal { get; set; }

                protected int Protected { get; set; }

                public int Public { get; set; }



                public int ProtectedVal { get { return Protected; } }

            }



            public class ConcreteOrder : Order

            {

                public int Concrete { get; set; }

            }

        }



        class UserWithConstructor

        {

            public UserWithConstructor(int id, string name)

            {

                Ident = id;

                FullName = name;

            }

            public int Ident { get; set; }

            public string FullName { get; set; }

        }



        class PostWithConstructor

        {

            public PostWithConstructor(int id, int ownerid, string content)

            {

                Ident = id;

                FullContent = content;

            }



            public int Ident { get; set; }

            public UserWithConstructor Owner { get; set; }

            public string FullContent { get; set; }

            public Comment Comment { get; set; }

        }



        public void TestMultiMapWithConstructor()

        { 

            var createSql = @"

                create table #Users (Id int, Name varchar(20))

                create table #Posts (Id int, OwnerId int, Content varchar(20))



                insert #Users values(99, 'Sam')

                insert #Users values(2, 'I am')



                insert #Posts values(1, 99, 'Sams Post1')

                insert #Posts values(2, 99, 'Sams Post2')

                insert #Posts values(3, null, 'no ones post')";

            connection.Execute(createSql);

            string sql = @"select * from #Posts p 

                           left join #Users u on u.Id = p.OwnerId 

                           Order by p.Id";

            PostWithConstructor[] data = connection.Query<PostWithConstructor, UserWithConstructor, PostWithConstructor>(sql, (post, user) => { post.Owner = user; return post;}).ToArray();

            var p = data.First();



            p.FullContent.IsEqualTo("Sams Post1");

            p.Ident.IsEqualTo(1);

            p.Owner.FullName.IsEqualTo("Sam");

            p.Owner.Ident.IsEqualTo(99);



            data[2].Owner.IsNull();



            connection.Execute("drop table #Users drop table #Posts");

        }





        class MultipleConstructors

        {

            public MultipleConstructors()

            {



            }

            public MultipleConstructors(int a, string b)

            {

                A = a + 1;

                B = b + "!";

            }

            public int A { get; set; }

            public string B { get; set; }

        }



        public void TestMultipleConstructors()

        {

            MultipleConstructors mult = connection.Query<MultipleConstructors>("select 0 A, 'Dapper' b").First();

            mult.A.IsEqualTo(0);

            mult.B.IsEqualTo("Dapper");

        }



        class ConstructorsWithAccessModifiers

        {

            private ConstructorsWithAccessModifiers()

            {

            }

            public ConstructorsWithAccessModifiers(int a, string b)

            {

                A = a + 1;

                B = b + "!";

            }

            public int A { get; set; }

            public string B { get; set; }

        }



        public void TestConstructorsWithAccessModifiers()

        {

            ConstructorsWithAccessModifiers value = connection.Query<ConstructorsWithAccessModifiers>("select 0 A, 'Dapper' b").First();

            value.A.IsEqualTo(1);

            value.B.IsEqualTo("Dapper!");

        }



        class NoDefaultConstructor

        {

            public NoDefaultConstructor(int a1, int? b1, float f1, string s1, Guid G1)

            {

                A = a1;

                B = b1;

                F = f1;

                S = s1;

                G = G1;

            }

            public int A { get; set; }

            public int? B { get; set; }

            public float F { get; set; }

            public string S { get; set; }

            public Guid G { get; set; }

        }



        public void TestNoDefaultConstructor()

        {

            var guid = Guid.NewGuid();

            NoDefaultConstructor nodef = connection.Query<NoDefaultConstructor>("select CAST(NULL AS integer) A1,  CAST(NULL AS integer) b1, CAST(NULL AS real) f1, 'Dapper' s1, G1 = @id", new { Id = guid }).First();

            nodef.A.IsEqualTo(0);

            nodef.B.IsEqualTo(null);

            nodef.F.IsEqualTo(0);

            nodef.S.IsEqualTo("Dapper");

            nodef.G.IsEqualTo(guid);

        }



        class NoDefaultConstructorWithChar

        {

            public NoDefaultConstructorWithChar(char c1, char? c2, char? c3)

            {

                Char1 = c1;

                Char2 = c2;

                Char3 = c3;

            }

            public char Char1 { get; set; }

            public char? Char2 { get; set; }

            public char? Char3 { get; set; }

        }



        public void TestNoDefaultConstructorWithChar()

        {

            const char c1 = 'ą';

            const char c3 = 'ó';

            NoDefaultConstructorWithChar nodef = connection.Query<NoDefaultConstructorWithChar>("select @c1 c1, @c2 c2, @c3 c3", new { c1 = c1, c2 = (char?)null, c3 = c3 }).First();

            nodef.Char1.IsEqualTo(c1);

            nodef.Char2.IsEqualTo(null);

            nodef.Char3.IsEqualTo(c3);

        }



        class NoDefaultConstructorWithEnum

        {

            public NoDefaultConstructorWithEnum(ShortEnum e1, ShortEnum? n1, ShortEnum? n2)

            {

                E = e1;

                NE1 = n1;

                NE2 = n2;

            }

            public ShortEnum E { get; set; }

            public ShortEnum? NE1 { get; set; }

            public ShortEnum? NE2 { get; set; }

        }



        public void TestNoDefaultConstructorWithEnum()

        {

            NoDefaultConstructorWithEnum nodef = connection.Query<NoDefaultConstructorWithEnum>("select cast(2 as smallint) E1, cast(5 as smallint) n1, cast(null as smallint) n2").First();

            nodef.E.IsEqualTo(ShortEnum.Two);

            nodef.NE1.IsEqualTo(ShortEnum.Five);

            nodef.NE2.IsEqualTo(null);

        }



        class NoDefaultConstructorWithBinary

        {

            public System.Data.Linq.Binary Value { get; set; }

            public int Ynt { get; set; }

            public NoDefaultConstructorWithBinary(System.Data.Linq.Binary val)

            {

                Value = val;

            }

        }



        public void TestNoDefaultConstructorBinary()

        {

            byte[] orig = new byte[20];

            new Random(123456).NextBytes(orig);

            var input = new System.Data.Linq.Binary(orig);

            var output = connection.Query<NoDefaultConstructorWithBinary>("select @input as val", new { input }).First().Value;

            output.ToArray().IsSequenceEqualTo(orig);

        }



        // http://stackoverflow.com/q/8593871

        public void TestAbstractInheritance() 

        {

            var order = connection.Query<AbstractInheritance.ConcreteOrder>("select 1 Internal,2 Protected,3 [Public],4 Concrete").First();



            order.Internal.IsEqualTo(1);

            order.ProtectedVal.IsEqualTo(2);

            order.Public.IsEqualTo(3);

            order.Concrete.IsEqualTo(4);

        }



        public void TestListOfAnsiStrings()

        {

            var results = connection.Query<string>("select * from (select 'a' str union select 'b' union select 'c') X where str in @strings",

                new { strings = new[] { new DbString { IsAnsi = true, Value = "a" }, new DbString { IsAnsi = true, Value = "b" } } }).ToList();



            results[0].IsEqualTo("a");

            results[1].IsEqualTo("b");

        }



        public void TestNullableGuidSupport()

        {

            var guid = connection.Query<Guid?>("select null").First();

            guid.IsNull();



            guid = Guid.NewGuid();

            var guid2 = connection.Query<Guid?>("select @guid", new { guid }).First();

            guid.IsEqualTo(guid2);

        }



        public void TestNonNullableGuidSupport()

        {

            var guid = Guid.NewGuid();

            var guid2 = connection.Query<Guid?>("select @guid", new { guid }).First();

            Assert.IsTrue(guid == guid2);

        }



        struct Car

        {

            public enum TrapEnum : int

            {

                A = 1,

                B = 2

            }

#pragma warning disable 0649

            public string Name;

#pragma warning restore 0649

            public int Age { get; set; }

            public TrapEnum Trap { get; set; }

        

        }



        public void TestStructs()

        {

            var car = connection.Query<Car>("select 'Ford' Name, 21 Age, 2 Trap").First();



            car.Age.IsEqualTo(21);

            car.Name.IsEqualTo("Ford");

            ((int)car.Trap).IsEqualTo(2);

        }



        public void SelectListInt()

        {

            connection.Query<int>("select 1 union all select 2 union all select 3")

              .IsSequenceEqualTo(new[] { 1, 2, 3 });

        }

        public void SelectBinary()

        {

            connection.Query<byte[]>("select cast(1 as varbinary(4))").First().SequenceEqual(new byte[] { 1 });

        }

        public void PassInIntArray()

        {

            connection.Query<int>("select * from (select 1 as Id union all select 2 union all select 3) as X where Id in @Ids", new { Ids = new int[] { 1, 2, 3 }.AsEnumerable() })

             .IsSequenceEqualTo(new[] { 1, 2, 3 });

        }



        public void PassInEmptyIntArray()

        {

            connection.Query<int>("select * from (select 1 as Id union all select 2 union all select 3) as X where Id in @Ids", new { Ids = new int[0] })

             .IsSequenceEqualTo(new int[0]);

        }



        public void TestSchemaChanged()

        {

            connection.Execute("create table #dog(Age int, Name nvarchar(max)) insert #dog values(1, 'Alf')");

            var d = connection.Query<Dog>("select * from #dog").Single();

            d.Name.IsEqualTo("Alf");

            d.Age.IsEqualTo(1);

            connection.Execute("alter table #dog drop column Name");

            d = connection.Query<Dog>("select * from #dog").Single();

            d.Name.IsNull();

            d.Age.IsEqualTo(1);

            connection.Execute("drop table #dog");

        }



        public void TestSchemaChangedMultiMap()

        {

            connection.Execute("create table #dog(Age int, Name nvarchar(max)) insert #dog values(1, 'Alf')");

            var tuple = connection.Query<Dog, Dog, Tuple<Dog, Dog>>("select * from #dog d1 join #dog d2 on 1=1", (d1, d2) => Tuple.Create(d1, d2), splitOn: "Age").Single();



            tuple.Item1.Name.IsEqualTo("Alf");

            tuple.Item1.Age.IsEqualTo(1);

            tuple.Item2.Name.IsEqualTo("Alf");

            tuple.Item2.Age.IsEqualTo(1);



            connection.Execute("alter table #dog drop column Name");

            tuple = connection.Query<Dog, Dog, Tuple<Dog, Dog>>("select * from #dog d1 join #dog d2 on 1=1", (d1, d2) => Tuple.Create(d1, d2), splitOn: "Age").Single();



            tuple.Item1.Name.IsNull();

            tuple.Item1.Age.IsEqualTo(1);

            tuple.Item2.Name.IsNull();

            tuple.Item2.Age.IsEqualTo(1);



            connection.Execute("drop table #dog");

        }



        public void TestReadMultipleIntegersWithSplitOnAny()

        {

            connection.Query<int, int, int, Tuple<int, int, int>>(

                "select 1,2,3 union all select 4,5,6", Tuple.Create, splitOn: "*")

             .IsSequenceEqualTo(new[] { Tuple.Create(1, 2, 3), Tuple.Create(4, 5, 6) });

        }



        public void TestDoubleParam()

        {

            connection.Query<double>("select @d", new { d = 0.1d }).First()

                .IsEqualTo(0.1d);

        }



        public void TestBoolParam()

        {

            connection.Query<bool>("select @b", new { b = false }).First()

                .IsFalse();

        }



        // http://code.google.com/p/dapper-dot-net/issues/detail?id=70

        // https://connect.microsoft.com/VisualStudio/feedback/details/381934/sqlparameter-dbtype-dbtype-time-sets-the-parameter-to-sqldbtype-datetime-instead-of-sqldbtype-time

        public void TestTimeSpanParam()

        {

            connection.Query<TimeSpan>("select @ts", new { ts = TimeSpan.FromMinutes(42) }).First()

                .IsEqualTo(TimeSpan.FromMinutes(42));

        }



        public void TestStrings()

        {

            connection.Query<string>(@"select 'a' a union select 'b'")

                .IsSequenceEqualTo(new[] { "a", "b" });

        }



        enum EnumParam : short

        {

            None, A, B

        }

        class EnumParamObject

        {

            public EnumParam A { get; set; }

            public EnumParam? B { get; set; }

            public EnumParam? C { get; set; }

        }

        class EnumParamObjectNonNullable

        {

            public EnumParam A { get; set; }

            public EnumParam? B { get; set; }

            public EnumParam? C { get; set; }

        }

        public void TestEnumParamsWithNullable()

        {

            EnumParam a = EnumParam.A;

            EnumParam? b = EnumParam.B, c = null;

            var obj = connection.Query<EnumParamObject>("select @a as A, @b as B, @c as C",

                new { a, b, c }).Single();

            obj.A.IsEqualTo(EnumParam.A);

            obj.B.IsEqualTo(EnumParam.B);

            obj.C.IsEqualTo(null);

        }

        public void TestEnumParamsWithoutNullable()

        {

            EnumParam a = EnumParam.A;

            EnumParam b = EnumParam.B, c = 0;

            var obj = connection.Query<EnumParamObjectNonNullable>("select @a as A, @b as B, @c as C",

                new { a, b, c }).Single();

            obj.A.IsEqualTo(EnumParam.A);

            obj.B.IsEqualTo(EnumParam.B);

            obj.C.IsEqualTo((EnumParam)0);

        }

        public class Dog

        {

            public int? Age { get; set; }

            public Guid Id { get; set; }

            public string Name { get; set; }

            public float? Weight { get; set; }



            public int IgnoredProperty { get { return 1; } }

        }



        public void TestExtraFields()

        {

            var guid = Guid.NewGuid();

            var dog = connection.Query<Dog>("select '' as Extra, 1 as Age, 0.1 as Name1 , Id = @id", new { Id = guid });



            dog.Count()

               .IsEqualTo(1);



            dog.First().Age

                .IsEqualTo(1);



            dog.First().Id

                .IsEqualTo(guid);

        }





        public void TestStrongType()

        {

            var guid = Guid.NewGuid();

            var dog = connection.Query<Dog>("select Age = @Age, Id = @Id", new { Age = (int?)null, Id = guid });



            dog.Count()

                .IsEqualTo(1);



            dog.First().Age

                .IsNull();



            dog.First().Id

                .IsEqualTo(guid);

        }



        public void TestSimpleNull()

        {

            connection.Query<DateTime?>("select null").First().IsNull();

        }



        public void TestExpando()

        {

            var rows = connection.Query("select 1 A, 2 B union all select 3, 4").ToList();



            ((int)rows[0].A)

                .IsEqualTo(1);



            ((int)rows[0].B)

                .IsEqualTo(2);



            ((int)rows[1].A)

                .IsEqualTo(3);



            ((int)rows[1].B)

                .IsEqualTo(4);

        }



        public void TestStringList()

        {

            connection.Query<string>("select * from (select 'a' as x union all select 'b' union all select 'c') as T where x in @strings", new { strings = new[] { "a", "b", "c" } })

                .IsSequenceEqualTo(new[] { "a", "b", "c" });



            connection.Query<string>("select * from (select 'a' as x union all select 'b' union all select 'c') as T where x in @strings", new { strings = new string[0] })

                   .IsSequenceEqualTo(new string[0]);

        }



        public void TestExecuteCommand()

        {

            connection.Execute(@"

    set nocount on 

    create table #t(i int) 

    set nocount off 

    insert #t 

    select @a a union all select @b 

    set nocount on 

    drop table #t", new { a = 1, b = 2 }).IsEqualTo(2);

        }

        public void TestExecuteCommandWithHybridParameters()

        {

            var p = new DynamicParameters(new { a = 1, b = 2 });

            p.Add("c", dbType: DbType.Int32, direction: ParameterDirection.Output);

            connection.Execute(@"set @c = @a + @b", p);

            p.Get<int>("@c").IsEqualTo(3);

        }

        public void TestExecuteMultipleCommand()

        {

            connection.Execute("create table #t(i int)");

            int tally = connection.Execute(@"insert #t (i) values(@a)", new[] { new { a = 1 }, new { a = 2 }, new { a = 3 }, new { a = 4 } });

            int sum = connection.Query<int>("select sum(i) from #t drop table #t").First();

            tally.IsEqualTo(4);

            sum.IsEqualTo(10);

        }



        class Student

        {

            public string Name { get; set; }

            public int Age { get; set; }

        }



        public void TestExecuteMultipleCommandStrongType()

        {

            connection.Execute("create table #t(Name nvarchar(max), Age int)");

            int tally = connection.Execute(@"insert #t (Name,Age) values(@Name, @Age)", new List<Student> 

            {

                new Student{Age = 1, Name = "sam"},

                new Student{Age = 2, Name = "bob"}

            });

            int sum = connection.Query<int>("select sum(Age) from #t drop table #t").First();

            tally.IsEqualTo(2);

            sum.IsEqualTo(3);

        }



        public void TestExecuteMultipleCommandObjectArray()

        {

            connection.Execute("create table #t(i int)");

            int tally = connection.Execute(@"insert #t (i) values(@a)", new object[] { new { a = 1 }, new { a = 2 }, new { a = 3 }, new { a = 4 } });

            int sum = connection.Query<int>("select sum(i) from #t drop table #t").First();

            tally.IsEqualTo(4);

            sum.IsEqualTo(10);

        }



        public void TestMassiveStrings()

        {

            var str = new string('X', 20000);

            connection.Query<string>("select @a", new { a = str }).First()

                .IsEqualTo(str);

        }



        class TestObj

        {

            public int _internal;

            internal int Internal { set { _internal = value; } }



            public int _priv;

            private int Priv { set { _priv = value; } }

        }



        public void TestSetInternal()

        {

            connection.Query<TestObj>("select 10 as [Internal]").First()._internal.IsEqualTo(10);

        }



        public void TestSetPrivate()

        {

            connection.Query<TestObj>("select 10 as [Priv]").First()._priv.IsEqualTo(10);

        }



        public void TestEnumeration()

        {

            var en = connection.Query<int>("select 1 as one union all select 2 as one", buffered: false);

            var i = en.GetEnumerator();

            i.MoveNext();



            bool gotException = false;

            try

            {

                var x = connection.Query<int>("select 1 as one", buffered: false).First();

            }

            catch (Exception)

            {

                gotException = true;

            }



            while (i.MoveNext())

            { }



            // should not exception, since enumertated

            en = connection.Query<int>("select 1 as one", buffered: false);



            gotException.IsTrue();

        }



        public void TestEnumerationDynamic()

        {

            var en = connection.Query("select 1 as one union all select 2 as one", buffered: false);

            var i = en.GetEnumerator();

            i.MoveNext();



            bool gotException = false;

            try

            {

                var x = connection.Query("select 1 as one", buffered: false).First();

            }

            catch (Exception)

            {

                gotException = true;

            }



            while (i.MoveNext())

            { }



            // should not exception, since enumertated

            en = connection.Query("select 1 as one", buffered: false);



            gotException.IsTrue();

        }



        public void TestNakedBigInt()

        {

            long foo = 12345;

            var result = connection.Query<long>("select @foo", new { foo }).Single();

            foo.IsEqualTo(result);

        }



        public void TestBigIntMember()

        {

            long foo = 12345;

            var result = connection.Query<WithBigInt>(@"

declare @bar table(Value bigint)

insert @bar values (@foo)

select * from @bar", new { foo }).Single();

            result.Value.IsEqualTo(foo);

        }

        class WithBigInt

        {

            public long Value { get; set; }

        }



        class User

        {

            public int Id { get; set; }

            public string Name { get; set; }

        }

        class Post

        {

            public int Id { get; set; }

            public User Owner { get; set; }

            public string Content { get; set; }

            public Comment Comment { get; set; }

        }

        public void TestMultiMap()

        {

            var createSql = @"

                create table #Users (Id int, Name varchar(20))

                create table #Posts (Id int, OwnerId int, Content varchar(20))



                insert #Users values(99, 'Sam')

                insert #Users values(2, 'I am')



                insert #Posts values(1, 99, 'Sams Post1')

                insert #Posts values(2, 99, 'Sams Post2')

                insert #Posts values(3, null, 'no ones post')

";

            connection.Execute(createSql);



            var sql =

@"select * from #Posts p 

left join #Users u on u.Id = p.OwnerId 

Order by p.Id";



            var data = connection.Query<Post, User, Post>(sql, (post, user) => { post.Owner = user; return post; }).ToList();

            var p = data.First();



            p.Content.IsEqualTo("Sams Post1");

            p.Id.IsEqualTo(1);

            p.Owner.Name.IsEqualTo("Sam");

            p.Owner.Id.IsEqualTo(99);



            data[2].Owner.IsNull();



            connection.Execute("drop table #Users drop table #Posts");

        }







        public void TestMultiMapGridReader()

        {

            var createSql = @"

                create table #Users (Id int, Name varchar(20))

                create table #Posts (Id int, OwnerId int, Content varchar(20))



                insert #Users values(99, 'Sam')

                insert #Users values(2, 'I am')



                insert #Posts values(1, 99, 'Sams Post1')

                insert #Posts values(2, 99, 'Sams Post2')

                insert #Posts values(3, null, 'no ones post')

";

            connection.Execute(createSql);



            var sql =

@"select p.*, u.Id, u.Name + '0' Name from #Posts p 

left join #Users u on u.Id = p.OwnerId 

Order by p.Id



select p.*, u.Id, u.Name + '1' Name from #Posts p 

left join #Users u on u.Id = p.OwnerId 

Order by p.Id

";



            var grid = connection.QueryMultiple(sql);



            for (int i = 0; i < 2; i++)

            {

                var data = grid.Read<Post, User, Post>((post, user) => { post.Owner = user; return post; }).ToList();

                var p = data.First();



                p.Content.IsEqualTo("Sams Post1");

                p.Id.IsEqualTo(1);

                p.Owner.Name.IsEqualTo("Sam" + i);

                p.Owner.Id.IsEqualTo(99);



                data[2].Owner.IsNull();

            }



            connection.Execute("drop table #Users drop table #Posts");



        }



        public void TestQueryMultipleBuffered()

        {

            using (var grid = connection.QueryMultiple("select 1; select 2; select @x; select 4", new { x = 3 }))

            {

                var a = grid.Read<int>();

                var b = grid.Read<int>();

                var c = grid.Read<int>();

                var d = grid.Read<int>();



                a.Single().Equals(1);

                b.Single().Equals(2);

                c.Single().Equals(3);

                d.Single().Equals(4);

            }

        }



        public void TestQueryMultipleNonBufferedIncorrectOrder()

        {

            using (var grid = connection.QueryMultiple("select 1; select 2; select @x; select 4", new { x = 3 }))

            {

                var a = grid.Read<int>(false);

                try

                {

                    var b = grid.Read<int>(false);

                    throw new InvalidOperationException(); // should have thrown

                }

                catch (InvalidOperationException)

                {

                    // that's expected

                }

                

            }

        }

        public void TestQueryMultipleNonBufferedCcorrectOrder()

        {

            using (var grid = connection.QueryMultiple("select 1; select 2; select @x; select 4", new { x = 3 }))

            {

                var a = grid.Read<int>(false).Single();

                var b = grid.Read<int>(false).Single();

                var c = grid.Read<int>(false).Single();

                var d = grid.Read<int>(false).Single();



                a.Equals(1);

                b.Equals(2);

                c.Equals(3);

                d.Equals(4);

            }

        }

        public void TestMultiMapDynamic()

        {

            var createSql = @"

                create table #Users (Id int, Name varchar(20))

                create table #Posts (Id int, OwnerId int, Content varchar(20))



                insert #Users values(99, 'Sam')

                insert #Users values(2, 'I am')



                insert #Posts values(1, 99, 'Sams Post1')

                insert #Posts values(2, 99, 'Sams Post2')

                insert #Posts values(3, null, 'no ones post')

";

            connection.Execute(createSql);



            var sql =

@"select * from #Posts p 

left join #Users u on u.Id = p.OwnerId 

Order by p.Id";



            var data = connection.Query<dynamic, dynamic, dynamic>(sql, (post, user) => { post.Owner = user; return post; }).ToList();

            var p = data.First();



            // hairy extension method support for dynamics

            ((string)p.Content).IsEqualTo("Sams Post1");

            ((int)p.Id).IsEqualTo(1);

            ((string)p.Owner.Name).IsEqualTo("Sam");

            ((int)p.Owner.Id).IsEqualTo(99);



            ((object)data[2].Owner).IsNull();



            connection.Execute("drop table #Users drop table #Posts");

        }



        class Product

        {

            public int Id { get; set; }

            public string Name { get; set; }

            public Category Category { get; set; }

        }

        class Category

        {

            public int Id { get; set; }

            public string Name { get; set; }

            public string Description { get; set; }

        }

        public void TestMultiMapWithSplit() // http://stackoverflow.com/q/6056778/23354

        {

            var sql = @"select 1 as id, 'abc' as name, 2 as id, 'def' as name";

            var product = connection.Query<Product, Category, Product>(sql, (prod, cat) =>

            {

                prod.Category = cat;

                return prod;

            }).First();

            // assertions

            product.Id.IsEqualTo(1);

            product.Name.IsEqualTo("abc");

            product.Category.Id.IsEqualTo(2);

            product.Category.Name.IsEqualTo("def");

        }

        public void TestMultiMapWithSplitWithNullValue() // http://stackoverflow.com/q/10744728/449906

        {

            var sql = @"select 1 as id, 'abc' as name, NULL as description, 'def' as name";

            var product = connection.Query<Product, Category, Product>(sql, (prod, cat) =>

            {

                prod.Category = cat;

                return prod;

            }, splitOn: "description").First();

            // assertions

            product.Id.IsEqualTo(1);

            product.Name.IsEqualTo("abc");

            product.Category.IsNull();

        }

        public void TestMultiMapWithSplitWithNullValueAndSpoofColumn() // http://stackoverflow.com/q/10744728/449906

        {

            var sql = @"select 1 as id, 'abc' as name, 1 as spoof, NULL as description, 'def' as name";

            var product = connection.Query<Product, Category, Product>(sql, (prod, cat) =>

            {

                prod.Category = cat;

                return prod;

            }, splitOn: "spoof").First();

            // assertions

            product.Id.IsEqualTo(1);

            product.Name.IsEqualTo("abc");

            product.Category.IsNotNull();

            product.Category.Id.IsEqualTo(0);

            product.Category.Name.IsEqualTo("def");

            product.Category.Description.IsNull();

        }

        public void TestFieldsAndPrivates()

        {

            var data = connection.Query<TestFieldCaseAndPrivatesEntity>(

                @"select a=1,b=2,c=3,d=4,f='5'").Single();





            data.a.IsEqualTo(1);

            data.GetB().IsEqualTo(2);

            data.c.IsEqualTo(3);

            data.GetD().IsEqualTo(4);

            data.e.IsEqualTo(5);





        }



        private class TestFieldCaseAndPrivatesEntity

        {

            public int a { get; set; }

            private int b { get; set; }

            public int GetB() { return b; }

            public int c = 0;

            private int d = 0;

            public int GetD() { return d; }

            public int e { get; set; }

            private string f

            {

                get { return e.ToString(); }

                set { e = int.Parse(value); }

            }

        }



        public void TestMultiReaderBasic()

        {

            var sql = @"select 1 as Id union all select 2 as Id     select 'abc' as name   select 1 as Id union all select 2 as Id";

            int i, j;

            string s;

            using (var multi = connection.QueryMultiple(sql))

            {

                i = multi.Read<int>().First();

                s = multi.Read<string>().Single();

                j = multi.Read<int>().Sum();

            }

            Assert.IsEqualTo(i, 1);

            Assert.IsEqualTo(s, "abc");

            Assert.IsEqualTo(j, 3);

        }

        public void TestMultiMappingVariations()

        {

            var sql = @"select 1 as Id, 'a' as Content, 2 as Id, 'b' as Content, 3 as Id, 'c' as Content, 4 as Id, 'd' as Content, 5 as Id, 'e' as Content";



            var order = connection.Query<dynamic, dynamic, dynamic, dynamic>(sql, (o, owner, creator) => { o.Owner = owner; o.Creator = creator; return o; }).First();



            Assert.IsEqualTo(order.Id, 1);

            Assert.IsEqualTo(order.Content, "a");

            Assert.IsEqualTo(order.Owner.Id, 2);

            Assert.IsEqualTo(order.Owner.Content, "b");

            Assert.IsEqualTo(order.Creator.Id, 3);

            Assert.IsEqualTo(order.Creator.Content, "c");



            order = connection.Query<dynamic, dynamic, dynamic, dynamic, dynamic>(sql, (o, owner, creator, address) =>

            {

                o.Owner = owner;

                o.Creator = creator;

                o.Owner.Address = address;

                return o;

            }).First();



            Assert.IsEqualTo(order.Id, 1);

            Assert.IsEqualTo(order.Content, "a");

            Assert.IsEqualTo(order.Owner.Id, 2);

            Assert.IsEqualTo(order.Owner.Content, "b");

            Assert.IsEqualTo(order.Creator.Id, 3);

            Assert.IsEqualTo(order.Creator.Content, "c");

            Assert.IsEqualTo(order.Owner.Address.Id, 4);

            Assert.IsEqualTo(order.Owner.Address.Content, "d");



            order = connection.Query<dynamic, dynamic, dynamic, dynamic, dynamic, dynamic>(sql, (a, b, c, d, e) => { a.B = b; a.C = c; a.C.D = d; a.E = e; return a; }).First();



            Assert.IsEqualTo(order.Id, 1);

            Assert.IsEqualTo(order.Content, "a");

            Assert.IsEqualTo(order.B.Id, 2);

            Assert.IsEqualTo(order.B.Content, "b");

            Assert.IsEqualTo(order.C.Id, 3);

            Assert.IsEqualTo(order.C.Content, "c");

            Assert.IsEqualTo(order.C.D.Id, 4);

            Assert.IsEqualTo(order.C.D.Content, "d");

            Assert.IsEqualTo(order.E.Id, 5);

            Assert.IsEqualTo(order.E.Content, "e");



        }



        class InheritanceTest1

        {

            public string Base1 { get; set; }

            public string Base2 { get; private set; }

        }



        class InheritanceTest2 : InheritanceTest1

        {

            public string Derived1 { get; set; }

            public string Derived2 { get; private set; }

        }



        public void TestInheritance()

        {

            // Test that inheritance works.

            var list = connection.Query<InheritanceTest2>("select 'One' as Derived1, 'Two' as Derived2, 'Three' as Base1, 'Four' as Base2");

            list.First().Derived1.IsEqualTo("One");

            list.First().Derived2.IsEqualTo("Two");

            list.First().Base1.IsEqualTo("Three");

            list.First().Base2.IsEqualTo("Four");

        }





        public class PostCE

        {

            public int ID { get; set; }

            public string Title { get; set; }

            public string Body { get; set; }



            public AuthorCE Author { get; set; }

        }



        public class AuthorCE

        {

            public int ID { get; set; }

            public string Name { get; set; }

        }



        public void MultiRSSqlCE()

        {

            if (File.Exists("Test.sdf"))

                File.Delete("Test.sdf");



            var cnnStr = "Data Source = Test.sdf;";

            var engine = new SqlCeEngine(cnnStr);

            engine.CreateDatabase();



            using (var cnn = new SqlCeConnection(cnnStr))

            {

                cnn.Open();



                cnn.Execute("create table Posts (ID int, Title nvarchar(50), Body nvarchar(50), AuthorID int)");

                cnn.Execute("create table Authors (ID int, Name nvarchar(50))");



                cnn.Execute("insert Posts values (1,'title','body',1)");

                cnn.Execute("insert Posts values(2,'title2','body2',null)");

                cnn.Execute("insert Authors values(1,'sam')");



                var data = cnn.Query<PostCE, AuthorCE, PostCE>(@"select * from Posts p left join Authors a on a.ID = p.AuthorID", (post, author) => { post.Author = author; return post; }).ToList();

                var firstPost = data.First();

                firstPost.Title.IsEqualTo("title");

                firstPost.Author.Name.IsEqualTo("sam");

                data[1].Author.IsNull();

                cnn.Close();

            }

        }



        enum TestEnum : byte

        {

            Bla = 1

        }

        class TestEnumClass

        {

            public TestEnum? EnumEnum { get; set; }

        }

        class TestEnumClassNoNull

        {

            public TestEnum EnumEnum { get; set; }

        }

        public void TestEnumWeirdness()

        {

            connection.Query<TestEnumClass>("select null as [EnumEnum]").First().EnumEnum.IsEqualTo(null);

            connection.Query<TestEnumClass>("select cast(1 as tinyint) as [EnumEnum]").First().EnumEnum.IsEqualTo(TestEnum.Bla);

        }

        public void TestEnumStrings()

        {

            connection.Query<TestEnumClassNoNull>("select 'BLA' as [EnumEnum]").First().EnumEnum.IsEqualTo(TestEnum.Bla);

            connection.Query<TestEnumClassNoNull>("select 'bla' as [EnumEnum]").First().EnumEnum.IsEqualTo(TestEnum.Bla);



            connection.Query<TestEnumClass>("select 'BLA' as [EnumEnum]").First().EnumEnum.IsEqualTo(TestEnum.Bla);

            connection.Query<TestEnumClass>("select 'bla' as [EnumEnum]").First().EnumEnum.IsEqualTo(TestEnum.Bla);

        }



        public void TestSupportForDynamicParameters()

        {

            var p = new DynamicParameters();

            p.Add("name", "bob");

            p.Add("age", dbType: DbType.Int32, direction: ParameterDirection.Output);



            connection.Query<string>("set @age = 11 select @name", p).First().IsEqualTo("bob");



            p.Get<int>("age").IsEqualTo(11);

        }

        public void TestSupportForExpandoObjectParameters()

        {

            dynamic p = new ExpandoObject();

            p.name = "bob";

            object parameters = p;

            string result = connection.Query<string>("select @name", parameters).First();

            result.IsEqualTo("bob");

        }



        public void TestProcSupport()

        {

            var p = new DynamicParameters();

            p.Add("a", 11);

            p.Add("b", dbType: DbType.Int32, direction: ParameterDirection.Output);

            p.Add("c", dbType: DbType.Int32, direction: ParameterDirection.ReturnValue);



            connection.Execute(@"create proc #TestProc 

	@a int,

	@b int output

as 

begin

	set @b = 999

	select 1111

	return @a

end");

            connection.Query<int>("#TestProc", p, commandType: CommandType.StoredProcedure).First().IsEqualTo(1111);



            p.Get<int>("c").IsEqualTo(11);

            p.Get<int>("b").IsEqualTo(999);



        }



        public void TestDbString()

        {

            var obj = connection.Query("select datalength(@a) as a, datalength(@b) as b, datalength(@c) as c, datalength(@d) as d, datalength(@e) as e, datalength(@f) as f",

                new

                {

                    a = new DbString { Value = "abcde", IsFixedLength = true, Length = 10, IsAnsi = true },

                    b = new DbString { Value = "abcde", IsFixedLength = true, Length = 10, IsAnsi = false },

                    c = new DbString { Value = "abcde", IsFixedLength = false, Length = 10, IsAnsi = true },

                    d = new DbString { Value = "abcde", IsFixedLength = false, Length = 10, IsAnsi = false },

                    e = new DbString { Value = "abcde", IsAnsi = true },

                    f = new DbString { Value = "abcde", IsAnsi = false },

                }).First();

            ((int)obj.a).IsEqualTo(10);

            ((int)obj.b).IsEqualTo(20);

            ((int)obj.c).IsEqualTo(5);

            ((int)obj.d).IsEqualTo(10);

            ((int)obj.e).IsEqualTo(5);

            ((int)obj.f).IsEqualTo(10);

        }



        class Person

        {

            public int PersonId { get; set; }

            public string Name { get; set; }

        }



        class Address

        {

            public int AddressId { get; set; }

            public string Name { get; set; }

            public int PersonId { get; set; }

        }



        class Extra

        {

            public int Id { get; set; }

            public string Name { get; set; }

        }



        public void TestFlexibleMultiMapping()

        {

            var sql =

@"select 

    1 as PersonId, 'bob' as Name, 

    2 as AddressId, 'abc street' as Name, 1 as PersonId,

    3 as Id, 'fred' as Name

    ";

            var personWithAddress = connection.Query<Person, Address, Extra, Tuple<Person, Address, Extra>>

                (sql, (p, a, e) => Tuple.Create(p, a, e), splitOn: "AddressId,Id").First();



            personWithAddress.Item1.PersonId.IsEqualTo(1);

            personWithAddress.Item1.Name.IsEqualTo("bob");

            personWithAddress.Item2.AddressId.IsEqualTo(2);

            personWithAddress.Item2.Name.IsEqualTo("abc street");

            personWithAddress.Item2.PersonId.IsEqualTo(1);

            personWithAddress.Item3.Id.IsEqualTo(3);

            personWithAddress.Item3.Name.IsEqualTo("fred");



        }



        public void TestMultiMappingWithSplitOnSpaceBetweenCommas()

        {

            var sql = @"select 

                        1 as PersonId, 'bob' as Name, 

                        2 as AddressId, 'abc street' as Name, 1 as PersonId,

                        3 as Id, 'fred' as Name

                        ";

            var personWithAddress = connection.Query<Person, Address, Extra, Tuple<Person, Address, Extra>>

                (sql, (p, a, e) => Tuple.Create(p, a, e), splitOn: "AddressId, Id").First();



            personWithAddress.Item1.PersonId.IsEqualTo(1);

            personWithAddress.Item1.Name.IsEqualTo("bob");

            personWithAddress.Item2.AddressId.IsEqualTo(2);

            personWithAddress.Item2.Name.IsEqualTo("abc street");

            personWithAddress.Item2.PersonId.IsEqualTo(1);

            personWithAddress.Item3.Id.IsEqualTo(3);

            personWithAddress.Item3.Name.IsEqualTo("fred");



        }



        public void TestFastExpandoSupportsIDictionary()

        {

            var row = connection.Query("select 1 A, 'two' B").First() as IDictionary<string, object>;

            row["A"].IsEqualTo(1);

            row["B"].IsEqualTo("two");

        }





        class PrivateDan

        {

            public int Shadow { get; set; }

            private string ShadowInDB

            {

                set

                {

                    Shadow = value == "one" ? 1 : 0;

                }

            }

        }

        public void TestDapperSetsPrivates()

        {

            connection.Query<PrivateDan>("select 'one' ShadowInDB").First().Shadow.IsEqualTo(1);

        }





        class IntDynamicParam : Dapper.SqlMapper.IDynamicParameters

        {

            IEnumerable<int> numbers;

            public IntDynamicParam(IEnumerable<int> numbers)

            {

                this.numbers = numbers;

            }



            public void AddParameters(IDbCommand command, Dapper.SqlMapper.Identity identity)

            {

                var sqlCommand = (SqlCommand)command;

                sqlCommand.CommandType = CommandType.StoredProcedure;



                List<Microsoft.SqlServer.Server.SqlDataRecord> number_list = new List<Microsoft.SqlServer.Server.SqlDataRecord>();



                // Create an SqlMetaData object that describes our table type.

                Microsoft.SqlServer.Server.SqlMetaData[] tvp_definition = { new Microsoft.SqlServer.Server.SqlMetaData("n", SqlDbType.Int) };



                foreach (int n in numbers)

                {

                    // Create a new record, using the metadata array above.

                    Microsoft.SqlServer.Server.SqlDataRecord rec = new Microsoft.SqlServer.Server.SqlDataRecord(tvp_definition);

                    rec.SetInt32(0, n);    // Set the value.

                    number_list.Add(rec);      // Add it to the list.

                }



                // Add the table parameter.

                var p = sqlCommand.Parameters.Add("ints", SqlDbType.Structured);

                p.Direction = ParameterDirection.Input;

                p.TypeName = "int_list_type";

                p.Value = number_list;



            }

        }



        // SQL Server specific test to demonstrate TVP 

        public void TestTVP()

        {

            try

            {

                connection.Execute("CREATE TYPE int_list_type AS TABLE (n int NOT NULL PRIMARY KEY)");

                connection.Execute("CREATE PROC get_ints @ints int_list_type READONLY AS select * from @ints");



                var nums = connection.Query<int>("get_ints", new IntDynamicParam(new int[] { 1, 2, 3 })).ToList();

                nums[0].IsEqualTo(1);

                nums[1].IsEqualTo(2);

                nums[2].IsEqualTo(3);

                nums.Count.IsEqualTo(3);



            }

            finally

            {

                try

                {

                    connection.Execute("DROP PROC get_ints");

                }

                finally

                {

                    connection.Execute("DROP TYPE int_list_type");

                }

            }

        }



        class DynamicParameterWithIntTVP : Dapper.DynamicParameters, Dapper.SqlMapper.IDynamicParameters

        {

            IEnumerable<int> numbers;

            public DynamicParameterWithIntTVP(IEnumerable<int> numbers)

            {

                this.numbers = numbers;

            }



            public new void AddParameters(IDbCommand command, Dapper.SqlMapper.Identity identity)

            {

                base.AddParameters(command, identity);



                var sqlCommand = (SqlCommand)command;

                sqlCommand.CommandType = CommandType.StoredProcedure;



                List<Microsoft.SqlServer.Server.SqlDataRecord> number_list = new List<Microsoft.SqlServer.Server.SqlDataRecord>();



                // Create an SqlMetaData object that describes our table type.

                Microsoft.SqlServer.Server.SqlMetaData[] tvp_definition = { new Microsoft.SqlServer.Server.SqlMetaData("n", SqlDbType.Int) };



                foreach (int n in numbers)

                {

                    // Create a new record, using the metadata array above.

                    Microsoft.SqlServer.Server.SqlDataRecord rec = new Microsoft.SqlServer.Server.SqlDataRecord(tvp_definition);

                    rec.SetInt32(0, n);    // Set the value.

                    number_list.Add(rec);      // Add it to the list.

                }



                // Add the table parameter.

                var p = sqlCommand.Parameters.Add("ints", SqlDbType.Structured);

                p.Direction = ParameterDirection.Input;

                p.TypeName = "int_list_type";

                p.Value = number_list;



            }

        }



        public void TestTVPWithAdditionalParams()

        {

            try

            {

                connection.Execute("CREATE TYPE int_list_type AS TABLE (n int NOT NULL PRIMARY KEY)");

                connection.Execute("CREATE PROC get_values @ints int_list_type READONLY, @stringParam varchar(20), @dateParam datetime AS select i.*, @stringParam as stringParam, @dateParam as dateParam from @ints i");



                var dynamicParameters = new DynamicParameterWithIntTVP(new int[] { 1, 2, 3 });

                dynamicParameters.AddDynamicParams(new { stringParam = "stringParam", dateParam = new DateTime(2012, 1, 1) });



                var results = connection.Query("get_values", dynamicParameters, commandType: CommandType.StoredProcedure).ToList();

                results.Count.IsEqualTo(3);

                for (int i = 0; i < results.Count; i++)

                {

                    var result = results[i];

                    Assert.IsEqualTo(i + 1, result.n);

                    Assert.IsEqualTo("stringParam", result.stringParam);

                    Assert.IsEqualTo(new DateTime(2012, 1, 1), result.dateParam);

                }



            }

            finally

            {

                try

                {

                    connection.Execute("DROP PROC get_values");

                }

                finally

                {

                    connection.Execute("DROP TYPE int_list_type");

                }

            }

        }



        class Parent

        {

            public int Id { get; set; }

            public readonly List<Child> Children = new List<Child>();

        }

        class Child

        {

            public int Id { get; set; }

        }

        public void ParentChildIdentityAssociations()

        {

            var lookup = new Dictionary<int, Parent>();

            var parents = connection.Query<Parent, Child, Parent>(@"select 1 as [Id], 1 as [Id] union all select 1,2 union all select 2,3 union all select 1,4 union all select 3,5",

                (parent, child) =>

                {

                    Parent found;

                    if (!lookup.TryGetValue(parent.Id, out found))

                    {

                        lookup.Add(parent.Id, found = parent);

                    }

                    found.Children.Add(child);

                    return found;

                }).Distinct().ToDictionary(p => p.Id);

            p…