Test rig for Issue #295

Dapper.Tests/Tests.cs

@@ -25,6 +25,7 @@
 using System.Data.SqlTypes;
 using System.Diagnostics;
 using Xunit;
+using System.Data.Common;
 #if EXTERNALS
 using FirebirdSql.Data.FirebirdClient;
 using System.Data.Entity.Spatial;
@@ -2844,7 +2845,95 @@ public void SO30435185_InvalidTypeOwner()
                 ex.Message.IsEqualTo("An enumerable sequence of parameters (arrays, lists, etc) is not allowed in this context");
             }
         }
+        [Fact]
+        public void Issue295_NullableDateTime_SqlServer()
+        {
+            TestDateTime(connection);
+        }
+#if MYSQL
+        private static MySql.Data.MySqlClient.MySqlConnection GetMySqlConnection(bool open = true,
+            bool convertZeroDatetime = false, bool allowZeroDatetime = false)
+        {
+            const string cs = "Server=localhost;Database=tests;Uid=test;Pwd=pass;";
+            var csb = new MySql.Data.MySqlClient.MySqlConnectionStringBuilder(cs);
+            csb.AllowZeroDateTime = allowZeroDatetime;
+            csb.ConvertZeroDateTime = convertZeroDatetime;
+            var conn = new MySql.Data.MySqlClient.MySqlConnection(csb.ConnectionString);
+            if (open) conn.Open();
+            return conn;
+        }
+        [FactMySql]
+        public void Issue295_NullableDateTime_MySql_Default()
+        {
+            using (var conn = GetMySqlConnection(true, false, false)) { TestDateTime(connection); }
+        }
+        [FactMySql]
+        public void Issue295_NullableDateTime_MySql_ConvertZeroDatetime()
+        {
+            using (var conn = GetMySqlConnection(true, true, false)) { TestDateTime(connection); }
+        }
+        [FactMySql]
+        public void Issue295_NullableDateTime_MySql_AllowZeroDatetime()
+        {
+            using (var conn = GetMySqlConnection(true, false, true)) { TestDateTime(connection); }
+        }
+        [FactMySql]
+        public void Issue295_NullableDateTime_MySql_ConvertAllowZeroDatetime()
+        {
+            using (var conn = GetMySqlConnection(true, true, true)) { TestDateTime(connection); }
+        }
 
+        public class FactMySqlAttribute : FactAttribute
+        {
+            public override string Skip
+            {
+                get { return unavailable ?? base.Skip; }
+                set { base.Skip = value; }
+            }
+            private static string unavailable;
+            static FactMySqlAttribute()
+            {
+                try
+                {
+                    using (GetMySqlConnection(true)) { }
+                }
+                catch(Exception ex)
+                {
+                    unavailable = $"MySql is unavailable: {ex.Message}";
+                }
+            }
+        }
+#endif
+        private void TestDateTime(DbConnection connection)
+        {
+            DateTime? now = DateTime.UtcNow;
+            try { connection.Execute("DROP TABLE Persons"); } catch { }
+            connection.Execute(@"CREATE TABLE Persons (id int not null, dob datetime null)");
+            connection.Execute(@"INSERT Persons (id, dob) values (@id, @dob)",
+                 new { id = 7, dob = (DateTime?)null });
+            connection.Execute(@"INSERT Persons (id, dob) values (@id, @dob)",
+                 new { id = 42, dob = now });
+
+            var row = connection.QueryFirstOrDefault<Issue295Person>(
+                "SELECT id, dob, dob as dob2 FROM Persons WHERE id=@id", new { id = 7});
+            row.IsNotNull();
+            row.Id.IsEqualTo(7);
+            row.DoB.IsNull();
+            row.DoB2.IsNull();
+
+            row = connection.QueryFirstOrDefault<Issue295Person>(
+                "SELECT id, dob FROM Persons WHERE id=@id", new { id = 42 });
+            row.IsNotNull();
+            row.Id.IsEqualTo(42);
+            row.DoB.Equals(now);
+            row.DoB2.Equals(now);
+        }
+        class Issue295Person
+        {
+            public int Id { get; set; }
+            public DateTime? DoB { get; set; }
+            public DateTime? DoB2 { get; set; }
+        }
 #if EXTERNALS
         [Fact(Skip="Bug in Firebird; a PR to fix it has been submitted")]
         public void Issue178_Firebird()

Dapper.Tests/project.json

@@ -25,6 +25,9 @@
   },
   "frameworks": {
     "net40": {
+      "compilationOptions": {
+        "define": [ "MYSQL" ]
+      },
       "frameworkAssemblies": {
         "System.Configuration": "4.0.0.0",
         "System.Data": "4.0.0.0",
@@ -36,12 +39,13 @@
         "ServiceStack.OrmLite": "4.0.48",
         "ServiceStack.OrmLite.SqlServer": "4.0.48",
         "Soma": "1.8.0.7",
-        "xunit": "1.9.2"
+        "xunit": "1.9.2",
+        "MySql.Data": "6.9.8"
       }
     },
     "net45": {
       "compilationOptions": {
-        "define": [ "ASYNC" ]
+        "define": [ "ASYNC", "MYSQL" ]
       },
       "frameworkAssemblies": {
         "System.Configuration": "4.0.0.0",
@@ -55,7 +59,8 @@
         "ServiceStack.OrmLite": "4.0.48",
         "ServiceStack.OrmLite.SqlServer": "4.0.48",
         "Soma": "1.8.0.7",
-        "xunit": "2.1.0"
+        "xunit": "2.1.0",
+        "MySql.Data": "6.9.8"
       }
     },
     "dotnet5.4": {
@@ -75,7 +80,7 @@
     },
     "dnx451": {
       "compilationOptions": {
-        "define": [ "ASYNC", "EXTERNALS", "DNX" ]
+        "define": [ "ASYNC", "EXTERNALS", "DNX", "MYSQL" ]
       },
       "frameworkAssemblies": {
         "System.Configuration": "4.0.0.0",
@@ -102,7 +107,8 @@
         "FirebirdSql.Data.FirebirdClient": "4.8.1.1",
         "Dapper.EntityFramework": {
           "target": "project"
-        }
+        },
+        "MySql.Data": "6.9.8"
       }
       
     },