public void ShouldCreateExistsExpression()
        {
            var factory    = new DbExpressionFactory();
            var expression = factory.Exists(factory.Select(e => e.Column("SomeColumn")));

            Assert.IsNotNull(expression.SubSelectExpression);
            Assert.IsTrue(expression.ExpressionType == DbExpressionType.Exists);
        }
 public void ShouldCreateExistsExpression()
 {
     var factory = new DbExpressionFactory();
     var expression = factory.Exists(factory.Select(e => e.Column("SomeColumn")));
     Assert.IsNotNull(expression.SubSelectExpression);
     Assert.IsTrue(expression.ExpressionType == DbExpressionType.Exists);
 }