public AsyncAwaitSpec()
{
Describe("Async Await methods", () =>
{
Describe("from non-async method", () =>
{
It("should call through by default.", () =>
{
TestSubject.InternalMethod(5).GetAwaiter().GetResult();
});
});
Describe("without a result", () =>
{
It("should call through by default.", async() =>
{
await TestSubject.MethodOne(5);
});
// spies may be changed to return Task.CompletedTask in future
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne));
var task = TestSubject.MethodOne(5);
Expect(task).ToBeDefault();
});
It("should call through as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.CallThrough();
await TestSubject.MethodOne(5);
});
It("should throw an exception as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.Throw <TestException>();
await ExpectAsync(() => TestSubject.MethodOne(5)).ToThrow <TestException>();
});
It("should throw an exception as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.Throw <TestException>();
await ExpectAsync(async() => await TestSubject.MethodOne(5)).ToThrow <TestException>();
});
});
Describe("with a result", () =>
{
It("should call through by default.", async() =>
{
var result = await TestSubject.MethodTwo(5);
Expect(result).ToBe("5");
});
// spies may be changed to return Task.CompletedTask in future
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodTwo));
var task = TestSubject.MethodTwo(5);
Expect(task).ToBeDefault();
});
It("should call through as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodTwo)).And.CallThrough();
var result = await TestSubject.MethodTwo(5);
Expect(result).ToBe("5");
});
It("should throw an exception as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.Throw <TestException>();
await ExpectAsync(() => TestSubject.MethodOne(5)).ToThrow <TestException>();
});
It("should throw an exception as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.Throw <TestException>();
await ExpectAsync(async() => await TestSubject.MethodOne(5)).ToThrow <TestException>();
});
It("should return the configured value.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodTwo)).And.ReturnValue(Task.FromResult("3"));
var result = await TestSubject.MethodTwo(5);
Expect(result).ToBe("3");
});
});
});
}