public void Given_collection_is_not_initialized_when_getting_count_should_return_0()
{
var sut = new ConcurrentCollection <object>();
// Act & assert
sut.Count.Should().Be(0);
}
public void Given_collection_is_not_initialized_when_iterating_should_return_nothing()
{
var sut = new ConcurrentCollection <object>();
// Act & assert
sut.Should().BeEmpty();
}
public void Given_collection_is_not_initialized_when_getting_by_invalid_index_should_throw()
{
var sut = new ConcurrentCollection <object>();
// Act
Func <object> act = () => sut[0];
// Assert
act.Should().Throw <IndexOutOfRangeException>();
}
public void Given_collection_with_items_when_getting_count_should_return_correct_count()
{
var sut = new ConcurrentCollection <object>
{
new object(),
new object()
};
// Act & assert
sut.Count.Should().Be(2);
}
public void Given_collection_is_cleared_when_getting_by_invalid_index_should_throw()
{
var sut = new ConcurrentCollection <object>
{
new object()
};
// Act
sut.Clear();
Func <object> act = () => sut[0];
// Assert
act.Should().Throw <IndexOutOfRangeException>();
}
public void Given_collection_with_items_when_getting_by_valid_index_should_return_item(int index)
{
int expectedValue = index + 1;
var sut = new ConcurrentCollection <object>
{
1,
2
};
// Act
object item = sut[index];
// Assert
item.Should().Be(expectedValue);
}
public void Given_iteration_is_in_process_when_modifying_collection_should_not_throw()
{
var sut = new ConcurrentCollection <object>
{
new object()
};
Action act = () =>
{
// Modify collection while iterating.
foreach (object _ in sut)
{
sut.Add(new object());
}
};
// Assert
act.Should().NotThrow();
}