Add tests for binding prepared command parameters.

Author: bgrainger

tests/SideBySide/PreparedCommandTests.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Text;
 using Dapper;
 using MySql.Data.MySqlClient;
 using Xunit;
@@ -220,6 +221,62 @@ public void ThrowsIfTooManyUnnamedParametersUsed()
 			}
 		}
 
+		[Theory]
+		[InlineData(1)]
+		[InlineData(2)]
+		[InlineData(3)]
+		[InlineData(4)]
+		[InlineData(5)]
+		[InlineData(6)]
+		[InlineData(7)]
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+		[InlineData(9)]
+		[InlineData(10)]
+		[InlineData(11)]
+		[InlineData(16)]
+		[InlineData(17)]
+		[InlineData(100)]
+		[InlineData(1000)]
+		[InlineData(10000)]
+		[InlineData(32767)]
+		[InlineData(32768)]
+		[InlineData(65535)]
+		public void ParametersAreBound(int parameterCount)
+		{
+			using (var connection = CreatePrepareConnection())
+			{
+				connection.Execute(@"drop table if exists prepared_command_test; create table prepared_command_test(value int not null); insert into prepared_command_test(value) values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);");
+
+				using (var cmd = connection.CreateCommand())
+				{
+					var sql = new StringBuilder("select value from prepared_command_test where value in (");
+					for (int parameterIndex = 1; parameterIndex <= parameterCount; parameterIndex++)
+					{
+						var parameterName = "p" + parameterIndex;
+						cmd.Parameters.AddWithValue(parameterName, parameterIndex);
+						if (parameterIndex > 1)
+							sql.Append(",");
+						sql.Append("@");
+						sql.Append(parameterName);
+					}
+					sql.Append(") order by value;");
+
+					cmd.CommandText = sql.ToString();
+					cmd.Prepare();
+
+					using (var reader = cmd.ExecuteReader())
+					{
+						for (var i = 1; i <= Math.Min(parameterCount, 10); i++)
+						{
+							Assert.True(reader.Read());
+							Assert.Equal(i, reader.GetInt32(0));
+						}
+						Assert.False(reader.Read());
+					}
+				}
+			}
+		}
+
 		public static IEnumerable<object[]> GetInsertAndQueryData()
 		{
 			foreach (var isPrepared in new[] { false, true })