public async Task IsContentReady_should_be_true_after_LoadAsync_returns()
{
var vm = new TestEditorViewModel(s_bonusBar);
var dispatcher = new UnitTestThreadDispatcher();
await vm.LoadAsync(new FakeRegistryService());
vm.IsContentReady.Should().BeTrue();
}
public async Task LoadAsync_should_start_a_timer_for_the_progress_bar_then_run_the_action()
{
var dispatcher = new UnitTestThreadDispatcher();
var vm = new TestEditorViewModel(s_bonusBar, dispatcher);
await vm.LoadAsync(new FakeRegistryService());
dispatcher.Runs.Should().ContainInOrder(DispatchRunKind.UIThreadDelayed, DispatchRunKind.BackgroundThread);
}
public async Task IsIndeterminateProgressBarVisible_should_be_false_after_the_load_returns()
{
var vm = new TestEditorViewModel(s_bonusBar);
var dispatcher = new UnitTestThreadDispatcher();
await vm.LoadAsync(new FakeRegistryService());
vm.IsIndeterminateProgressBarVisible.Should().BeFalse();
}
IsIndeterminateProgressBarVisible_should_be_true_after_a_delay_and_the_content_is_not_yet_ready()
{
var cancellationSource = new CancellationTokenSource();
CancellationToken cancellationToken = cancellationSource.Token;
var dispatcher =
new UnitTestThreadDispatcher(backgroundAsyncThreadInvoker: action => Task.Delay(-1, cancellationToken));
var vm = new TestEditorViewModel(s_bonusBar, dispatcher);
Task task = vm.LoadAsync(new FakeRegistryService(), 0, cancellationToken);
vm.IsIndeterminateProgressBarVisible.Should().BeTrue();
cancellationSource.Cancel();
Func <Task> func = async() => await task;
await func.Should().ThrowExactlyAsync <TaskCanceledException>();
}
public async Task LoadAsync_should_pass_in_the_delay_to_the_delayInvoker()
{
const int delay = 1;
var cancellationToken = new CancellationToken();
var dispatcher = new UnitTestThreadDispatcher(
delayInvoker: (ms, token) =>
{
ms.Should().Be(delay);
token.Should()
.NotBe(cancellationToken, "because the progress bar cancellation should be different");
return(Task.CompletedTask);
});
var vm = new TestEditorViewModel(s_bonusBar, dispatcher);
await vm.LoadAsync(new FakeRegistryService(), delay, cancellationToken);
}
