public void Filter_FilterShouldWork()
{
// Arrange
QueueLinkedList <double> sut = new QueueLinkedList <double> {
double.MaxValue, 2.7, 4.25, 5.28, 1.3, 2.8
};
double[] expected = { 5.28, 4.25, double.MaxValue };
// Act
IEnumerable <double> actual = sut.Filter(item => item > 4.1);
// Assert
Assert.Equal(expected, actual);
}