public void FindZeroSum_ThreeNumbersNotAddingToZero_ReturnsValue()
{
// arrange
int[] a = { 1, 2, 3 };
ArrayOperations ops = new ArrayOperations();
// act
int[] actual = ops.FindZeroSum(a);
// assert
Assert.IsNull(actual);
}
public void KadaneLargestSubarray_ValidValue_ReturnsExpected()
{
// arrange
int[] value = { -1, -2, 3, 4, -5, 6 };
ArrayOperations ops = new ArrayOperations();
// act
SubarraySum actual = ops.KadaneLargestSubarray(value);
// assert
Assert.AreEqual(2, actual.From);
Assert.AreEqual(5, actual.To);
Assert.AreEqual(8, actual.Sum);
}
public void FindZeroSum_ThreeNumbersAddingToZero_ReturnsValue()
{
// arrange
int[] a = { 1, 2, -3 };
int[] expected = { 0, 1, 2 };
ArrayOperations ops = new ArrayOperations();
// act
int[] actual = ops.FindZeroSum(a);
Array.Sort(actual);
// assert
Assert.IsTrue(expected.SequenceEqual(actual));
}
public void FindZeroSum_LargeArrayThreeAddingToZero_ReturnsValue()
{
// arrange
int[] a = { 4, 3, 6, 9, 1, 5, -3, 123, 2, 439 };
int[] expected = { 4, 6, 8 };
ArrayOperations ops = new ArrayOperations();
// act
int[] actual = ops.FindZeroSum(a);
Array.Sort(actual);
// assert
Assert.IsTrue(expected.SequenceEqual(actual));
}
public void SortByCategory_ValidArray_ReturnsValue()
{
// arrange
int[] a = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
ArrayOperations ops = new ArrayOperations();
// act
ops.SortByCategory(a);
// assert
int c = 0;
for (int i = 0; i < a.Length; i++)
{
int x = a[i];
if (a[i] % 3 != c)
{
c++;
}
}
Assert.AreEqual(2, c);
}
