public void when_try_to_remove_thing_not_stored_in_pocket_it_should_leave_pocket_content_unchanged_and_return_fail_status()
{
var sut = new ConcurrentPocket();
const string nameOfThing = "name of the thing";
const string thingItself = "the thing itself";
sut.Put(nameOfThing, thingItself);
sut.TryRemove("a different name").Should().BeFalse("a thing with such name not stored in the pocket");
sut.GetThings().Count.Should().Be(expected: 1, "number of things should be the same");
sut.GetThings()[nameOfThing].Should().BeSameAs(thingItself, "the pocket content should stay the same");
}
public void when_put_thing_with_same_name_as_already_present_it_should_replace_it()
{
var sut = new ConcurrentPocket();
const string nameOfThing = "name of the thing";
var secondThing = DateTime.Now;
sut.Put(nameOfThing, "first thing")
.Put(nameOfThing, secondThing);
sut.GetThings().Count.Should().Be(expected: 1, "same name means to replace the stored thing");
sut.GetThings()[nameOfThing].Should().Be(secondThing, "the thing should be replaced");
}
public void when_put_struct_thing_with_accepted_name_it_should_be_found_in_the_pocket()
{
var sut = new ConcurrentPocket();
const string nameOfThing = "name of the thing";
var thingItself = DateTime.Now;
var pocket = sut.Put(nameOfThing, thingItself);
pocket.Should().BeSameAs(sut, "returned pocket should stay the same");
sut.GetThings()[nameOfThing].Should().Be(thingItself, "thing should be stored");
}
public void when_try_to_remove_stored_thing_it_should_remove_it_and_return_success_status()
{
var sut = new ConcurrentPocket();
const string nameOfThing = "name of the thing";
const string thingItself = "the thing itself";
sut.Put(nameOfThing, thingItself);
sut.TryRemove(nameOfThing).Should().BeTrue("thing was removed from the pocket");
sut.GetThings().Count.Should().Be(expected: 0, "the pocket is empty");
}
public void when_take_or_put_thing_from_empty_pocket_it_should_make_thing_put_it_into_pocket_and_return_it()
{
var sut = new ConcurrentPocket();
const string nameOfThing = "name of the thing";
const string thingItself = "the thing itself";
var isFactoryCalled = false;
Func <string> thingFactory = () =>
{
isFactoryCalled = true;
return(thingItself);
};
var thing = sut.TakeOrPut(nameOfThing, thingFactory);
sut.GetThings().Count.Should().Be(expected: 1, "the made thing should be stored in the pocket");
isFactoryCalled.Should().BeTrue("it was an empty pocket and the thing should be made from scratch");
thing.Should().BeSameAs(thingItself, "exactly this thing was made");
}
public void when_try_get_things_from_empty_pocket_it_should_return_nothing()
{
var sut = new ConcurrentPocket();
sut.GetThings().Count.Should().Be(expected: 0, "no any thing in the pocket");
}
