.cs

public async Task Update_Positive(){
    var registerRequest = new Register.Command("zanli_0", "Степной ишак", "qwerty123!", avatarUrl: null);    var registerMessage = await _client.PostAsJsonAsync("/api/v1/users/register", registerRequest);
    var registerResponse = await registerMessage.Content.ReadFromJsonAsync<Register.Response>()!;
    var data = new Dictionary<string, string>    {
        { "grant_type", "password" },        { "username", "zanli_0" },
        { "password", "qwerty123!" }    };
    var exchangeMessage = await _client.PostAsync("~/connect/token")    _client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
        var updateRequest = new Update.Command(
        registerResponse!.Id,        Username: "akavi",
        DisplayName: "Akavi",        AvatarUrl: "https://example.com/avatar.jpg",
        OldPassword: null,        NewPassword: null);
        var updateMessage = await _client.PutAsJsonAsync($"/api/v1/users/{updateRequest.Id}", updateRequest);
    updateMessage.Should().HaveStatusCode(HttpStatusCode.OK);
    var updateResponse = await updateMessage.Content.ReadFromJsonAsync<Update.Response>();    updateResponse.Should().Be(new Update.Response(
        updateRequest.Id,        updateRequest.Username!,
        updateRequest.DisplayName!,        updateRequest.AvatarUrl));
    var userUpdatedEvent = await _harness.Published.LastOrDefaultAsync<UserUpdatedEvent>();
    userUpdatedEvent.Should().Be(new UserUpdatedEvent(        updateResponse!.Id.ToString(),
        updateResponse.Username,        updateResponse.DisplayName,
        updateResponse.AvatarUrl));
    var getByIdMessage = await _client.GetAsync($"/api/v1/users/{registerResponse.Id}");    getByIdMessage.Should().HaveStatusCode(HttpStatusCode.OK);
    var getByIdResponse = await getByIdMessage.Content.ReadFromJsonAsync<GetById.Response>();
    getByIdResponse.Should().Be(new GetById.Response(        updateRequest.Id,
        updateRequest.Username!,        updateRequest.DisplayName!,
        updateRequest.AvatarUrl));}