@Test
public void testSubtract() {
MyDouble a = new MyDouble(1);
MyDouble b = new MyDouble(2);
MyDouble c = new MyDouble(3);
QuadraticEquation EquatOne = new QuadraticEquation(a, b, c);
QuadraticEquation EquatTwo = new QuadraticEquation(a, b, c);
QuadraticEquation TestQuad = new QuadraticEquation(a.subtract(a), b.subtract(b), c.subtract(c));
assertTrue(TestQuad.equals(EquatOne.subtract(EquatTwo)));
}
@Test
public void testAdd() {
MyDouble a = new MyDouble(1);
MyDouble b = new MyDouble(2);
MyDouble c = new MyDouble(3);
QuadraticEquation EquatOne = new QuadraticEquation(a, b, c);
QuadraticEquation EquatTwo = new QuadraticEquation(a, b, c);
QuadraticEquation TestQuad = new QuadraticEquation(a.add(a), b.add(b), c.add(c));
assertTrue(TestQuad.equals(EquatOne.add(EquatTwo)));
}
@Test
public void testDerivative() {
MyDouble a = new MyDouble(1);
MyDouble b = new MyDouble(2);
MyDouble c = new MyDouble(3);
QuadraticEquation DiffQuad = new QuadraticEquation(a, b, c);
MyDouble expOne = new MyDouble(2);
MyDouble expTwo = new MyDouble(1);
QuadraticEquation ResultQuad = new QuadraticEquation(a.multiply(expOne), b.multiply(expTwo));
assertTrue(ResultQuad.equals(DiffQuad.derivative()));
}
@Test
public void testEqualsAndCompareTo() {
MyDouble a = new MyDouble(1);
MyDouble b = new MyDouble(2);
MyDouble c = new MyDouble(3);
QuadraticEquation TestQuadOne = new QuadraticEquation(a, b, c);
QuadraticEquation TestQuadTwo = new QuadraticEquation(a, b, c);
QuadraticEquation TestQuadThree = new QuadraticEquation(c, c, c);
assertEquals(0, TestQuadOne.compareTo(TestQuadTwo));
assertEquals(-1, TestQuadOne.compareTo(TestQuadThree));
assertEquals(true, TestQuadOne.equals(TestQuadTwo));
}
@Test
public void testMultiply() {
MyDouble a = new MyDouble(1);
MyDouble b = new MyDouble(2);
MyDouble c = new MyDouble(3);
QuadraticEquation TestOneQuad = new QuadraticEquation(a, b, c);
QuadraticEquation TestTwoQuad = new QuadraticEquation(a, b, c);
QuadraticEquation MultiQuadNull = TestOneQuad.limitedMultiply(TestTwoQuad);
assertEquals(null, MultiQuadNull);
QuadraticEquation TestThreeQuad = new QuadraticEquation(c);
QuadraticEquation MultiQuad = TestOneQuad.limitedMultiply(TestThreeQuad);
QuadraticEquation MultiTest =
new QuadraticEquation(a.multiply(c), b.multiply(c), c.multiply(c));
assertTrue(MultiQuad.equals(MultiTest));
}