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using System;
using MySqlX.XDevAPI.Relational;
using NUnit.Framework;
using MySql.Data.MySqlClient.X.XDevAPI.Common;

namespace MySqlX.Data.Tests.RelationalTests
{
  public class DateTimeTests : BaseTest
  {
    [TearDown]
    public void TearDown() => ExecuteSQL("DROP TABLE IF EXISTS test");
    [Test]
    public void DateTime()
    {
      ExecuteSQL("CREATE TABLE test.test(DT DATETIME)");
      ExecuteSQL("INSERT INTO test.test VALUES('2001-02-03 04:05:06')");

      RowResult r = ExecuteSelectStatement(GetSession().GetSchema("test").GetTable("test").Select("dt"));
      var rows = r.FetchAll();
      Assert.That(r.Columns, Has.One.Items);
      Assert.AreEqual(typeof(DateTime), r.Columns[0].ClrType);
      Assert.AreEqual(ColumnType.DateTime, r.Columns[0].Type);
      Assert.That(rows, Has.One.Items);
      DateTime dt = (DateTime)rows[0]["dt"];
      DateTime test = new DateTime(2001, 2, 3, 4, 5, 6);
      Assert.AreEqual(test, dt);
    }

    [Test]
    public void Date()
    {
      ExecuteSQL("CREATE TABLE test.test(DT DATE)");
      ExecuteSQL("INSERT INTO test.test VALUES('2001-02-03')");

      RowResult r = ExecuteSelectStatement(GetSession().GetSchema("test").GetTable("test").Select("dt"));
      var rows = r.FetchAll();
      Assert.That(r.Columns, Has.One.Items);
      Assert.AreEqual(typeof(DateTime), r.Columns[0].ClrType);
      Assert.AreEqual(ColumnType.Date, r.Columns[0].Type);
      Assert.That(rows, Has.One.Items);
      DateTime dt = (DateTime)rows[0]["dt"];
      DateTime test = new DateTime(2001, 2, 3);
      Assert.AreEqual(test, dt);
    }

    [Test]
    public void Timestamp()
    {
      ExecuteSQL("CREATE TABLE test.test(DT TIMESTAMP)");
      ExecuteSQL("INSERT INTO test.test VALUES('2001-02-03')");

      RowResult r = ExecuteSelectStatement(GetSession().GetSchema("test").GetTable("test").Select("dt"));
      var rows = r.FetchAll();
      Assert.That(r.Columns, Has.One.Items);
      Assert.AreEqual(typeof(DateTime), r.Columns[0].ClrType);
      //TODO:  this should support timestamp
      Assert.AreEqual(ColumnType.Timestamp, r.Columns[0].Type);
      Assert.That(rows, Has.One.Items);
      DateTime dt = (DateTime)rows[0]["dt"];
      DateTime test = new DateTime(2001, 2, 3);
      Assert.AreEqual(test, dt);
    }

    [Test]
    public void Time()
    {
      ExecuteSQL("CREATE TABLE test.test(DT TIME)");
      ExecuteSQL("INSERT INTO test.test VALUES('01:02:03')");

      RowResult r = ExecuteSelectStatement(GetSession().GetSchema("test").GetTable("test").Select("dt"));
      var rows = r.FetchAll();
      Assert.That(r.Columns, Has.One.Items);
      Assert.AreEqual(typeof(TimeSpan), r.Columns[0].ClrType);
      Assert.AreEqual(ColumnType.Time, r.Columns[0].Type);
      Assert.That(rows, Has.One.Items);
      TimeSpan t = (TimeSpan)rows[0]["dt"];
      TimeSpan test = new TimeSpan(1, 2, 3);
      Assert.AreEqual(test, t);
    }

    [Test]
    public void NegativeTime()
    {
      ExecuteSQL("CREATE TABLE test.test(DT TIME)");
      ExecuteSQL("INSERT INTO test.test VALUES('-01:02:03')");

      RowResult r = ExecuteSelectStatement(GetSession().GetSchema("test").GetTable("test").Select("dt"));
      var rows = r.FetchAll();
      Assert.That(r.Columns, Has.One.Items);
      Assert.AreEqual(typeof(TimeSpan), r.Columns[0].ClrType);
      Assert.AreEqual(ColumnType.Time, r.Columns[0].Type);
      Assert.That(rows, Has.One.Items);
      TimeSpan t = (TimeSpan)rows[0]["dt"];
      TimeSpan test = new TimeSpan(-1, 2, 3);
      Assert.AreEqual(test, t);
    }
  }
}
