public void FunctionalLifeSpanTest_ShouldProduceDesiredResults()
{
// Arrange.
var firstTerm = new BigInteger(3);
var secondTerm = new BigInteger(3);
// Act.
var target = new FibonacciSequence(firstTerm, secondTerm);
// Assert.
target.CalculatedTermCount.Should().Be(2);
target[0].Should().Be(firstTerm);
target[1].Should().Be(secondTerm);
target[2].Should().Be(6);
target[3].Should().Be(9);
target[4].Should().Be(15);
target.CalculatedTermCount.Should().Be(5);
target[5].Should().Be(24);
target[6].Should().Be(39);
target[7].Should().Be(63);
target[8].Should().Be(102);
target[9].Should().Be(165);
target.CalculatedTermCount.Should().Be(10);
target.Reset();
target.CalculatedTermCount.Should().Be(2);
target[0].Should().Be(firstTerm);
target[1].Should().Be(secondTerm);
target[2].Should().Be(6);
}
public void FibonacciSequence_ResetTests(int count, int k, long[] expected)
{
var sequence = new FibonacciSequence(count);
while (sequence.MoveNext())
{
}
sequence.Reset();
for (int i = 0; i < k; i++)
{
sequence.MoveNext();
}
Assert.AreEqual(new BigInteger(expected[k - 1]), sequence.Current);
}