SqlSugar/OrmTest/ExpressionTest/Where.cs

using OrmTest.Models;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;

namespace OrmTest.ExpressionTest
{
    public class Where : ExpTestBase
    {
        private Where() { }
        public Where(int eachCount)
        {
            this.Count = eachCount;
        }
        internal void Init()
        {
            base.Begin();
            for (int i = 0; i < base.Count; i++)
            {
                whereSingle1();
                whereSingle2();
                whereSingle3();
                whereSingle4();
            }
            base.End("Where Test");
        }

        private void whereSingle1()
        {
            Expression<Func<Student, bool>> exp = it => it.Id > 1;
            ExpressionContext expContext = new ExpressionContext(exp, ResolveExpressType.WhereSingle);
            expContext.Resolve();
            var value = expContext.Result.GetString();
            var pars = expContext.Parameters;
            base.Check(value, pars, "( Id  > @Id0 )", new List<SugarParameter>() {
                new SugarParameter("@Id0",1)
            }, "whereSingle1");
        }
        private void whereSingle2()
        {
            Expression<Func<Student, bool>> exp = it => 1 > it.Id;
            ExpressionContext expContext = new ExpressionContext(exp, ResolveExpressType.WhereSingle);
            expContext.Resolve();
            var value = expContext.Result.GetString();
            var pars = expContext.Parameters;
            base.Check(value, pars, "( @Id0  > Id )", new List<SugarParameter>() {
                new SugarParameter("@Id0",1)
            }, "whereSingle2");
        }
        private void whereSingle3()
        {
            Expression<Func<Student, bool>> exp = it => it.Id > 1 || it.Name == "a";
            ExpressionContext expContext = new ExpressionContext(exp, ResolveExpressType.WhereSingle);
            expContext.Resolve();
            var value = expContext.Result.GetString();
            var pars = expContext.Parameters;
            base.Check(value, pars, " (( Id  > @Id0 )  OR  ( Name  = @Name1 ))", new List<SugarParameter>() {
                new SugarParameter("@Id0",1),
                new SugarParameter("@Name1","a")
            }, "whereSingle3");
        }
        private void whereSingle4()
        {
            Expression<Func<Student, bool>> exp = it => (it.Id > 1 && it.Name != "a") || it.Name == "a1";
            ExpressionContext expContext = new ExpressionContext(exp, ResolveExpressType.WhereSingle);
            expContext.Resolve();
            var value = expContext.Result.GetString();
            var pars = expContext.Parameters;
            base.Check(value, pars, " ((( Id  > @Id0 )  AND  ( Name <> @Name1 ))  OR  ( Name  = @Name2 ))  ", new List<SugarParameter>() {
                new SugarParameter("@Id0",1),
                new SugarParameter("@Name1","a"),
                new SugarParameter("@Name2","a1")
            }, "whereSingle4");
        }
    }
}