public void subtracting_null_vector_throws() { var left = new VectorD(3); VectorD right = null; Assert.Throws <ArgumentNullException>(() => left.GetDiffernce(right)); }
public void subtracting_vectors_of_different_size_throws() { var left = new VectorD(3); var right = new VectorD(4); Assert.NotEqual(left.Dimensions, right.Dimensions); Assert.Throws <ArgumentOutOfRangeException>(() => left.GetDiffernce(right)); }
public void subtracting_vectors_leaves_operands_unchanged() { var left = new VectorD(3); left.Set(0, 1); left.Set(1, 10); left.Set(2, 6); var expectedLeft = new VectorD(left); var right = new VectorD(3); right.Set(0, 10); right.Set(1, 3); right.Set(2, 1); var expectedRight = new VectorD(right); var result = left.GetDiffernce(right); Assert.Equal(expectedLeft, left); Assert.Equal(expectedRight, right); }
public void subtracting_vector_produces_diff_vector() { var left = new VectorD(3); left.Set(0, 1); left.Set(1, 10); left.Set(2, 6); var right = new VectorD(3); right.Set(0, 10); right.Set(1, 3); right.Set(2, 1); var expected = new VectorD(3); expected.Set(0, -9); expected.Set(1, 7); expected.Set(2, 5); var actual = left.GetDiffernce(right); Assert.Equal(expected, actual); }