public void GetSignsTest()
{
double[,] m = { { 12, 4, 8 }, { -12, 9, 3 }, { 1, 7, 9 } };
ChemEqnMatrix cm = new ChemEqnMatrix(m);
int[] expected = { 1, -1, 1 };
int[] results = cm.GetSigns();
for (int j = 0; j < expected.Length; j++)
{
Assert.AreEqual(expected[j], results[j]);
}
}