public void testConstructor() {
assertFraction(0, 1, new Fraction(0, 1));
assertFraction(0, 1, new Fraction(0, 2));
assertFraction(0, 1, new Fraction(0, -1));
assertFraction(1, 2, new Fraction(1, 2));
assertFraction(1, 2, new Fraction(2, 4));
assertFraction(-1, 2, new Fraction(-1, 2));
assertFraction(-1, 2, new Fraction(1, -2));
assertFraction(-1, 2, new Fraction(-2, 4));
assertFraction(-1, 2, new Fraction(2, -4));
// overflow
try {
new Fraction(Integer.MIN_VALUE, -1);
fail();
} catch (ArithmeticException ex) {
// success
}
try {
new Fraction(1, Integer.MIN_VALUE);
fail();
} catch (ArithmeticException ex) {
// success
}
try {
assertFraction(0, 1, new Fraction(0.00000000000001));
assertFraction(2, 5, new Fraction(0.40000000000001));
assertFraction(15, 1, new Fraction(15.0000000000001));
} catch (ConvergenceException ex) {
fail(ex.getMessage());
}
}
public void testConstructorDouble() {
try {
assertFraction(1, 2, new Fraction(0.5));
assertFraction(1, 3, new Fraction(1.0 / 3.0));
assertFraction(17, 100, new Fraction(17.0 / 100.0));
assertFraction(317, 100, new Fraction(317.0 / 100.0));
assertFraction(-1, 2, new Fraction(-0.5));
assertFraction(-1, 3, new Fraction(-1.0 / 3.0));
assertFraction(-17, 100, new Fraction(17.0 / -100.0));
assertFraction(-317, 100, new Fraction(-317.0 / 100.0));
} catch (ConvergenceException ex) {
fail(ex.getMessage());
}
}