public void should_return_empty_sequence_when_empty_sequence_is_given()
{
var emptySequence = new List <int>();
var selector = new OddNumbersSelector();
Assert.IsEmpty(selector.Select(emptySequence));
}
public void EvenAndOddNumbers_PickOnlyOddNumbers()
{
var sut = new OddNumbersSelector();
int[] numbers = { 3, 4, 5, 9, 7 };
var result = sut.Pick(numbers).Sum();
Assert.That(result, Is.EqualTo(24));
}
public void should_return_empty_sequence_when_there_are_no_odd_numbers()
{
var oddSequence = new List <int>()
{
4, 6, 44, 32, -4
};
var selector = new OddNumbersSelector();
Assert.IsEmpty(selector.Select(oddSequence));
}
public void should_return_all_even_numbers_from_sequence()
{
var testSequence = new List <int>()
{
1, 2, 3, 6, 4, 15, 23, -3
};
var correctResultSequence = new List <int>()
{
1, 3, 15, 23, -3
};
var selector = new OddNumbersSelector();
CollectionAssert.AreEqual(correctResultSequence, selector.Select(testSequence));
}
