public async Task when_first_component_cancels_task_then_second_component_is_not_started()
{
var cts = new CancellationTokenSource();
var firtComponent = new CancellationComponent(cts);
var secondComponent = new Mock <IStartable>();
var service = new StartableService(
new[]
{
new Lazy <IStartable, IStartableMetadata>
(
() => firtComponent,
Mock.Of <IStartableMetadata>(x => x.Context == "solutionLoaded")
),
new Lazy <IStartable, IStartableMetadata>
(
() => secondComponent.Object,
Mock.Of <IStartableMetadata>(x => x.Context == "solutionLoaded")
)
});
await service.StartComponentsAsync("solutionLoaded", cts.Token);
Assert.True(cts.IsCancellationRequested);
secondComponent.Verify(x => x.StartAsync(), Times.Never);
}
public async Task when_starting_components_with_context_guid_then_components_are_started()
{
var contextGuid = Guid.NewGuid();
var foo = new Mock <IStartable>();
var bar = new Mock <IStartable>();
var service = new StartableService(
new[]
{
new Lazy <IStartable, IStartableMetadata>
(
() => foo.Object,
Mock.Of <IStartableMetadata>(x => x.ContextGuid == contextGuid)
),
new Lazy <IStartable, IStartableMetadata>
(
() => bar.Object,
Mock.Of <IStartableMetadata>(x => x.ContextGuid == Guid.NewGuid())
)
});
await service.StartComponentsAsync(contextGuid.ToString().ToLowerInvariant());
foo.Verify(x => x.StartAsync());
bar.Verify(x => x.StartAsync(), Times.Never());
}
public async Task when_starting_components_with_matching_case_insensitive_context_string_then_components_are_started()
{
var foo = new Mock <IStartable>();
var bar = new Mock <IStartable>();
var service = new StartableService(
new[]
{
new Lazy <IStartable, IStartableMetadata>
(
() => foo.Object,
Mock.Of <IStartableMetadata>(x => x.Context == "solutionLoaded")
),
new Lazy <IStartable, IStartableMetadata>
(
() => bar.Object,
Mock.Of <IStartableMetadata>(x => x.Context == "SolutionLoaded")
)
});
await service.StartComponentsAsync("solutionLoaded");
foo.Verify(x => x.StartAsync());
bar.Verify(x => x.StartAsync());
}
public async Task when_starting_components_with_order_then_components_are_started_honoring_the_provided_order()
{
var components = new List <string>();
var foo = new Mock <IStartable>();
foo.Setup(x => x.StartAsync()).Callback(() => components.Add("foo")).Returns(Task.CompletedTask);
var bar = new Mock <IStartable>();
bar.Setup(x => x.StartAsync()).Callback(() => components.Add("bar")).Returns(Task.CompletedTask);
var service = new StartableService(
new[]
{
new Lazy <IStartable, IStartableMetadata>
(
() => foo.Object,
Mock.Of <IStartableMetadata>(x => x.Context == "order" && x.Order == 100)
),
new Lazy <IStartable, IStartableMetadata>
(
() => bar.Object,
Mock.Of <IStartableMetadata>(x => x.Context == "order" && x.Order == 1)
)
});
await service.StartComponentsAsync("order");
// Bar should be started before Foo
Assert.Equal(2, components.Count);
Assert.Equal("bar", components[0]);
Assert.Equal("foo", components[1]);
}
public async Task when_starting_component_with_multiple_contexts_then_component_is_started()
{
var context1 = Guid.NewGuid();
var context2 = "OnSolutionLoad";
var foo = new Mock <IStartable>();
var service = new StartableService(
new[]
{
new Lazy <IStartable, IStartableMetadata>
(
() => foo.Object,
Mock.Of <IStartableMetadata>(x => x.Context == context1.ToString() + "|" + context2)
)
});
await service.StartComponentsAsync(context1.ToString().ToLowerInvariant());
await service.StartComponentsAsync(context2);
foo.Verify(x => x.StartAsync(), Times.Exactly(2));
}
public async Task when_starting_components_with_non_matching_context_string_then_components_are_not_started()
{
var foo = new Mock <IStartable>();
var service = new StartableService(
new[]
{
new Lazy <IStartable, IStartableMetadata>
(
() => foo.Object,
Mock.Of <IStartableMetadata>(x => x.Context == "solutionLoaded")
)
});
await service.StartComponentsAsync("packageLoaded");
foo.Verify(x => x.StartAsync(), Times.Never);
}