using Util.ObjectMapping.AutoMapper.Tests.Samples;
using Xunit;

namespace Util.ObjectMapping.AutoMapper.Tests; 

/// <summary>
/// 对象映射器测试
/// </summary>
public class ObjectMapperTest {
    /// <summary>
    /// 对象映射器
    /// </summary>
    private readonly IObjectMapper _mapper;

    /// <summary>
    /// 测试初始化
    /// </summary>
    public ObjectMapperTest( IObjectMapper mapper ) {
        _mapper = mapper;
    }

    /// <summary>
    /// 测试映射 - Sample -> Sample2 已在配置类中配置映射关系
    /// </summary>
    [Fact]
    public void TestMap_1() {
        var sample = new Sample { StringValue = "a" };
        var sample2 =_mapper.Map<Sample,Sample2>( sample );
        Assert.Equal( "a", sample2.StringValue );
    }

    /// <summary>
    /// 测试映射- Sample -> Sample2 已在配置类中配置映射关系 - 两参数重载
    /// </summary>
    [Fact]
    public void TestMap_2() {
        var sample = new Sample { StringValue = "a" };
        var sample2 = new Sample2();
        _mapper.Map( sample, sample2 );
        Assert.Equal( "a", sample2.StringValue );
    }

    /// <summary>
    /// 测试映射 - Sample2 -> Sample 未在配置类中配置,将自动配置映射
    /// </summary>
    [Fact]
    public void TestMap_3() {
        var sample2 = new Sample2 { StringValue = "a" };
        var sample = _mapper.Map<Sample2, Sample>( sample2 );
        Assert.Equal( "a", sample.StringValue );
    }

    /// <summary>
    /// 测试映射 - 用于重现动态配置后映射之前的配置出现问题
    /// 1. 执行Sample -> Sample2映射,已在配置类中配置映射关系
    /// 2. 执行Sample2 -> Sample映射,未在配置类中配置,将自动配置映射
    /// 3. 重复执行Sample -> Sample2映射
    /// </summary>
    [Fact]
    public void TestMap_4() {
        var sample = new Sample { StringValue = "a" };
        var sample2 = _mapper.Map<Sample, Sample2>( sample );
        Assert.Equal( "a", sample2.StringValue );

        var sample3 = _mapper.Map<Sample2, Sample>( sample2 );
        Assert.Equal( "a", sample3.StringValue );

        var sample4 = _mapper.Map<Sample, Sample2>( sample );
        Assert.Equal( "a", sample4.StringValue );
    }
}