using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using StackExchange.Redis;

using Xunit;
using Xunit.Extensions;
using Xunit.Serialization;
using Xunit.Abstractions;
using Xunit.Sdk;

using RedisStuy;

namespace RedisStudyTest
{
    /// <summary>
    /// Redis 集合学习 测试
    /// </summary>
    [Trait("RedisSet", "All")]
    public class RedisSetStudyTest:IDisposable
    {
        #region 初始化
        private readonly ITestOutputHelper testOutput;
        private IDatabase redisDatabase = null;
        private RedisSetStudy redisSetStudy = null;
        private TimeSpan defaultExpiry = TimeSpan.FromSeconds(20);
        private string defaultRedisKey = "RedisStudy:Set:xUnitTest";

        /// <summary>
        /// 构造
        /// </summary>
        public RedisSetStudyTest(ITestOutputHelper output)
        {
            this.testOutput = output;
            redisDatabase = RedisHelper.GetRedisDatabase();
            redisSetStudy = new RedisSetStudy();
        }
        #endregion

        #region SetAdd

        [Fact]
        public void SetAddOneTest()
        {
            var addResult = redisSetStudy.SetAdd(defaultRedisKey, "first");
            Assert.True(addResult);

            addResult = redisSetStudy.SetAdd(defaultRedisKey, "second");
            Assert.True(addResult);

            var setMembers = redisSetStudy.SetMembers(defaultRedisKey);

            Assert.NotEmpty(setMembers);
            Assert.Equal(2, setMembers.Length);
            Assert.Contains("first", setMembers);
            Assert.Contains("second", setMembers);
        }

        [Fact]
        public void SetAddGroupTest()
        {
            RedisValue[] values = new RedisValue[]
            {
                "first",
                "second",
                "third",
                "four",
            };

            var setAddNumber = redisSetStudy.SetAdd(defaultRedisKey, values);
            Assert.Equal(4, setAddNumber);

            //忽略已存在的项
            setAddNumber = redisSetStudy.SetAdd(defaultRedisKey, values);
            Assert.Equal(0, setAddNumber);

            var setMember = redisSetStudy.SetMembers(defaultRedisKey);
            Assert.Equal(4, setMember.Length);

            Assert.Contains(values[0], setMember);
            Assert.Contains(values[1], setMember);
            Assert.Contains(values[2], setMember);
            Assert.Contains(values[3], setMember);
        }
        #endregion

        #region 清理
        public void Dispose()
        {
            redisDatabase.KeyDelete(defaultRedisKey);
        }
        #endregion
    }
}