using WxAgent.Core;
using Xunit;

namespace WxAgent.Core.Tests;

public sealed class WechatNavigationTests
{
    [Theory]
    [InlineData(0)]
    [InlineData(101)]
    public void RejectsUnboundedScrollRequests(int pages) =>
        Assert.Throws<WxAgentException>(() => WechatNavigationRules.ValidateScrollLimit(pages));

    [Fact]
    public void MatchesExactVisibleFingerprintAndRejectsAmbiguity()
    {
        var message = new ChatMessageSnapshot("test", new string('a', 64), 0, ChatMessageType.Text);
        Assert.Same(message, WechatNavigationRules.FindMessage([message], new string('A', 64)));
        Assert.Null(WechatNavigationRules.FindMessage([message], new string('b', 64)));
        Assert.Throws<WxAgentException>(() => WechatNavigationRules.FindMessage([message, message], message.Fingerprint));
        Assert.Throws<WxAgentException>(() => WechatNavigationRules.FindMessage([message], "not-a-fingerprint"));
    }
}