public void HasErrorMessageShouldTriggerWhenProviderBreaks()
{
_provider.HostAuth("10.10.10.10", 5000, "hello", "world").Returns(x => throw new Exception("example"));
var model = BuildHostAuthViewModel();
model.HasErrorMessage.Should().BeFalse();
model.Port = "5000";
model.Username = "******";
model.Password = "******";
model.Address = "10.10.10.10";
model.Login.Execute().Subscribe(ok => { }, error => { });
model.HasErrorMessage.Should().BeTrue();
model.ErrorMessage.Should().Be("example");
}
public HostAuthViewModel(HostAuthState state, ICloud provider)
{
this.ValidationRule(
x => x.Username,
name => !string.IsNullOrWhiteSpace(name),
"User name shouldn't be null or white space.");
this.ValidationRule(
x => x.Password,
pass => !string.IsNullOrWhiteSpace(pass),
"Password shouldn't be null or white space.");
this.ValidationRule(
x => x.Address,
host => !string.IsNullOrWhiteSpace(host),
"Host address shouldn't be null or white space.");
this.ValidationRule(
x => x.Port,
port => int.TryParse(port, out _),
"Port should be a valid integer.");
Login = ReactiveCommand.CreateFromTask(
() => provider.HostAuth(Address, int.Parse(Port), Username, Password),
this.IsValid());
_isBusy = Login
.IsExecuting
.ToProperty(this, x => x.IsBusy);
_errorMessage = Login
.ThrownExceptions
.Select(exception => exception.Message)
.Log(this, $"Host auth error occured in {provider.Name}")
.ToProperty(this, x => x.ErrorMessage);
_hasErrorMessage = Login
.ThrownExceptions
.Select(exception => true)
.Merge(Login.Select(unit => false))
.ToProperty(this, x => x.HasErrorMessage);
Username = state.Username;
Password = state.Password;
Address = state.Address;
Port = state.Port;
this.WhenAnyValue(x => x.Username)
.Subscribe(name => state.Username = name);
this.WhenAnyValue(x => x.Password)
.Subscribe(name => state.Password = name);
this.WhenAnyValue(x => x.Address)
.Subscribe(name => state.Address = name);
this.WhenAnyValue(x => x.Port)
.Subscribe(name => state.Port = name);
}