Radicade/ServerTests/BanRelatedAccountTests.cs

using Microsoft.EntityFrameworkCore;
using RadicadeServer.DB;
using RadicadeServer.RecNet.Auth;
using RadicadeServer.RecNet.Enums.Moderation;
using RadicadeServer.Utils;
using Xunit;

namespace RadicadeServer.Tests;

/// <summary>
/// A ban that lands because the account is related to a banned one - a shared device or address -
/// prints the account it is related to on its own line under the reason. The moderationBlockDetails
/// screen has always done this; these lock in that the pushed ban body carries the same line, and
/// that a ban about the player themselves never names anybody.
/// </summary>
[Collection(DbFactoryCollection.Name)]
public class BanRelatedAccountTests
{
    private static RecDBContext NewDb() => new(
        TestDbOptions.Create()
            .UseInMemoryDatabase(Guid.NewGuid().ToString())
            .Options);

    private static async Task AddProfileAsync(RecDBContext db, long accountId, string username)
    {
        db.Profiles.Add(new Profile
        {
            accountId = accountId,
            username = username,
            displayName = username,
            profileImage = DBConfig.DefaultProfileImage
        });
        await db.SaveChangesAsync();
    }

    [Fact]
    public void BuildBlockDetailsAppendsTheRelatedAccountWhenOneIsGiven()
    {
        var details = PlayerUtils.BuildBlockDetails(true, ReportCategory.Misc, "Sharing a banned device.",
            DateTime.UtcNow.AddDays(1), relatedUsername: "HealthyMoose640");

        Assert.Equal("Sharing a banned device.\nRelated account: @HealthyMoose640", details.Message);
    }

    [Fact]
    public void BuildBlockDetailsWithoutARelatedAccountIsJustTheReason()
    {
        var details = PlayerUtils.BuildBlockDetails(true, ReportCategory.Misc, "Harassment.",
            DateTime.UtcNow.AddDays(1));

        Assert.Equal("Harassment.", details.Message);
    }

    [Fact]
    public async Task ARelationBanNamesTheAccountItIsRelatedTo()
    {
        using var db = NewDb();
        await AddProfileAsync(db, 12, "HealthyMoose640");

        var ban = new PlayerUtils.PlayerBanInfo("Hardware", "Sharing a banned device.",
            DateTime.UtcNow.AddDays(1), "hw:1", ReportCategory.Misc, BannedAccountId: 12);

        var details = await PlayerUtils.BuildBanBlockDetailsAsync(db, ban, accountId: 42);

        Assert.True(details.IsBan);
        Assert.Equal("Sharing a banned device.\nRelated account: @HealthyMoose640", details.Message);
        Assert.Equal(details.Message, details.DisplayReason);
    }

    [Fact]
    public async Task ABanAboutThePlayerThemselvesNamesNobody()
    {
        using var db = NewDb();
        await AddProfileAsync(db, 42, "SoleBearer");

        var ban = new PlayerUtils.PlayerBanInfo("Moderation", "Harassment.",
            DateTime.UtcNow.AddDays(1), "mod:1", ReportCategory.Misc, BannedAccountId: 42);

        var details = await PlayerUtils.BuildBanBlockDetailsAsync(db, ban, accountId: 42);

        Assert.Equal("Harassment.", details.Message);
        Assert.DoesNotContain("Related account", details.Message);
    }

    [Fact]
    public async Task ABanWithNoRelatedAccountIsJustTheReason()
    {
        using var db = NewDb();

        var ban = new PlayerUtils.PlayerBanInfo("Moderation", "Cheating.",
            DateTime.UtcNow.AddDays(1), "mod:2", ReportCategory.Cheating);

        var details = await PlayerUtils.BuildBanBlockDetailsAsync(db, ban, accountId: 7);

        Assert.Equal("Cheating.", details.Message);
    }

    [Fact]
    public async Task RelatedAccountUsernameIgnoresAMissingOrSelfReference()
    {
        using var db = NewDb();
        await AddProfileAsync(db, 12, "HealthyMoose640");

        Assert.Null(await PlayerUtils.RelatedAccountUsernameAsync(db, null, 42));
        Assert.Null(await PlayerUtils.RelatedAccountUsernameAsync(db, 42, 42));
        Assert.Null(await PlayerUtils.RelatedAccountUsernameAsync(db, 999, 42));
        Assert.Equal("HealthyMoose640", await PlayerUtils.RelatedAccountUsernameAsync(db, 12, 42));
    }
}