public void Enumerate_MinusTwo_ReturnsMinusTwo_ThenMinusOneMinusOne()
{
TestHelper.AssertSequence(
IntegerPartitions.Enumerate(-2),
new[] { -2 },
new[] { -1, -1 });
}
public void Enumerate_Two_ReturnsTwo_ThenOneOne()
{
TestHelper.AssertSequence(
IntegerPartitions.Enumerate(2),
new[] { 2 },
new[] { 1, 1 });
}
public void Enumerate_Three_ReturnsThree_ThenTwoOne_ThenOneOneOne()
{
TestHelper.AssertSequence(
IntegerPartitions.Enumerate(3),
new[] { 3 },
new[] { 2, 1 },
new[] { 1, 1, 1 });
}
public void Enumerate_SumsToOriginal(int number)
{
foreach (var combo in IntegerPartitions.Enumerate(number))
{
var sum = combo.Sum();
Assert.AreEqual(number, sum);
}
}
Enumerate_MinusFour_ReturnsMinusFour_ThenMinusThreeMinusOne_ThenMinusTwoMinusTwo_ThenMinusTwoMinusOneMinusOne_ThenMinusOneMinusOneMinusOneMinusOne()
{
TestHelper.AssertSequence(
IntegerPartitions.Enumerate(-4),
new[] { -4 },
new[] { -3, -1 },
new[] { -2, -1, -1 },
new[] { -1, -1, -1, -1 },
new[] { -2, -2 });
}
public void Enumerate_Four_ReturnsFour_ThenThreeOne_ThenTwoTwo_ThenTwoOneOne_ThenOneOneOneOne()
{
TestHelper.AssertSequence(
IntegerPartitions.Enumerate(4),
new[] { 4 },
new[] { 3, 1 },
new[] { 2, 1, 1 },
new[] { 1, 1, 1, 1 },
new[] { 2, 2 });
}
public void GetCount_ReturnsValidCount_ForNegativeNumber(int number, int expected)
{
var result = IntegerPartitions.GetCount(number);
Assert.AreEqual(expected, result);
}
public void Enumerate_One_ReturnsOne()
{
TestHelper.AssertSequence(
IntegerPartitions.Enumerate(1),
new[] { 1 });
}
public void Enumerate_Zero_ReturnsNothing()
{
TestHelper.AssertSequence(
IntegerPartitions.Enumerate(0)
);
}
