@Test
public void testSeekerFindAllLocations() {
byte[] marker = {1, 1, 2};
byte[] allOnes = new byte[] {1, 1, 1, 1};
byte[] findIn = new byte[] {1, 1, 1, 1};
Seeker s = new Seeker(marker);
for (int i = 0; i < findIn.length; i++) {
assertEquals(-1, s.find(allOnes, allOnes.length));
findIn[i] = 2;
assertEquals(i, s.find(findIn, findIn.length));
findIn[i] = 1;
}
}
@Test
public void testSeekerFindResume() {
byte[] marker = {0, 1, 2, 3};
byte[] buffer;
Seeker s;
s = new Seeker(marker);
buffer = new byte[] {0, 0, 0, 0, 0, 0, 0, 0};
assertEquals(-1, s.find(buffer, buffer.length));
buffer = new byte[] {1, 2, 3, 0, 0, 0, 0, 0};
assertEquals(2, s.find(buffer, buffer.length));
buffer = new byte[] {0, 0, 0, 0, 0, 0, 1, 2};
assertEquals(-1, s.find(buffer, buffer.length));
buffer = new byte[] {3, 0, 1, 2, 3, 0, 1, 2};
assertEquals(0, s.find(buffer, buffer.length));
buffer = new byte[] {0};
assertEquals(-1, s.find(buffer, buffer.length));
buffer = new byte[] {1};
assertEquals(-1, s.find(buffer, buffer.length));
buffer = new byte[] {2};
assertEquals(-1, s.find(buffer, buffer.length));
buffer = new byte[] {3};
assertEquals(0, s.find(buffer, buffer.length));
}
// Tests for Seeker.
@Test
public void testSeekerFind() {
byte[] marker = {0, 1, 2, 3};
byte[] buffer;
Seeker s;
s = new Seeker(marker);
buffer = new byte[] {0, 1, 2, 3, 4, 5, 6, 7};
assertEquals(3, s.find(buffer, buffer.length));
buffer = new byte[] {0, 0, 0, 0, 0, 1, 2, 3};
assertEquals(7, s.find(buffer, buffer.length));
buffer = new byte[] {0, 1, 2, 0, 0, 1, 2, 3};
assertEquals(7, s.find(buffer, buffer.length));
buffer = new byte[] {0, 1, 2, 3};
assertEquals(3, s.find(buffer, buffer.length));
}
@Test
public void testSeekerFindPartial() {
byte[] marker = {0, 0, 1};
byte[] buffer;
Seeker s;
s = new Seeker(marker);
buffer = new byte[] {0, 0, 0, 1};
assertEquals(3, s.find(buffer, buffer.length));
marker = new byte[] {1, 1, 1, 2};
s = new Seeker(marker);
buffer = new byte[] {1, 1, 1, 1, 1};
assertEquals(-1, s.find(buffer, buffer.length));
buffer = new byte[] {1, 1, 2};
assertEquals(2, s.find(buffer, buffer.length));
buffer = new byte[] {1, 1, 1, 1, 1};
assertEquals(-1, s.find(buffer, buffer.length));
buffer = new byte[] {2, 1, 1, 1, 2};
assertEquals(0, s.find(buffer, buffer.length));
}
@Test
public void testSeekerUsesBufferLength() {
byte[] marker = {0, 0, 1};
byte[] buffer;
Seeker s;
s = new Seeker(marker);
buffer = new byte[] {0, 0, 0, 1};
assertEquals(-1, s.find(buffer, 3));
s = new Seeker(marker);
buffer = new byte[] {0, 0};
assertEquals(-1, s.find(buffer, 1));
buffer = new byte[] {1, 0};
assertEquals(-1, s.find(buffer, 1));
s = new Seeker(marker);
buffer = new byte[] {0, 2};
assertEquals(-1, s.find(buffer, 1));
buffer = new byte[] {0, 2};
assertEquals(-1, s.find(buffer, 1));
buffer = new byte[] {1, 2};
assertEquals(0, s.find(buffer, 1));
}