CountSetBitsTest.java

packagecom.thealgorithms.bitmanipulation;

importstaticorg.junit.jupiter.api.Assertions.assertEquals;

importorg.junit.jupiter.api.Test;

publicclassCountSetBitsTest {

@Test
voidtestSetBits() {
CountSetBitscsb = newCountSetBits();
assertEquals(1L, csb.countSetBits(16));
assertEquals(4, csb.countSetBits(15));
assertEquals(5, csb.countSetBits(10000));
assertEquals(5, csb.countSetBits(31));
 }

@Test
voidtestSetBitsLookupApproach() {
CountSetBitscsb = newCountSetBits();
assertEquals(1L, csb.lookupApproach(16));
assertEquals(4, csb.lookupApproach(15));
assertEquals(5, csb.lookupApproach(10000));
assertEquals(5, csb.lookupApproach(31));
 }
}