@Test
public void testFloat() {
for (long seed = 0; seed < 10000; seed++) {
CopiableRandom myrand = new CopiableRandom(seed);
Random rand = new Random(seed);
for (int i = 1; i < 1000; i++) {
myrand = new CopiableRandom(myrand);
float a = rand.nextFloat();
float b = myrand.nextFloat();
assertTrue(a == b);
}
}
}
@Test
public void testBytes() {
for (long seed = 0; seed < 100; seed++) {
CopiableRandom myrand = new CopiableRandom(seed);
Random rand = new Random(seed);
for (int i = 1; i < 100; i++) {
myrand = new CopiableRandom(myrand);
byte[] a = new byte[100];
byte[] b = new byte[100];
rand.nextBytes(a);
myrand.nextBytes(b);
Assert.assertArrayEquals(a, b);
}
}
}
/**
* Test the use of a Copiable Random and a copy of this one to guarantee they behave the same.
*
* @param args
*/
@Test
public void testCopyAndCopyOfCopy() {
long seed = 1234;
Random rand = new Random(seed);
CopiableRandom myrand = new CopiableRandom(seed);
for (int i = 1; i < 1000000; i++) {
myrand = new CopiableRandom(myrand);
CopiableRandom other = new CopiableRandom(myrand);
int a = rand.nextInt(6);
int b = myrand.nextInt(6);
int c = other.nextInt(6);
Assert.assertEquals("Equals the two ", a, b);
Assert.assertEquals("Equals the two ", b, c);
}
}
@Test
public void testInt() {
for (long seed = 0; seed < 10000; seed++) {
Random rand = new Random(seed);
CopiableRandom myrand = new CopiableRandom(seed);
for (int i = 1; i < 1000; i++) {
// copy constructor
myrand = new CopiableRandom(myrand);
assertTrue(rand.nextBoolean() == myrand.nextBoolean());
}
myrand = new CopiableRandom(seed);
rand = new Random(seed);
for (int i = 1; i < 1000; i++) {
myrand = new CopiableRandom(myrand);
int a = rand.nextInt(1000000);
int b = myrand.nextInt(1000000);
assertTrue(a == b);
// System.out.println("Equals the two " + (a==b) +" "+a+" "+b);
}
}
}