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testing: improve test coverage ParityCheckTest (#6389)

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testing: improve test coverage ParityCheckTest

Co-authored-by: Deniz Altunkapan <93663085+DenizAltunkapan@users.noreply.github.com>
This commit is contained in:
Oleksandr Klymenko
2025-07-17 23:03:24 +03:00
committed by GitHub
parent 7f6e677b07
commit 2f2a32b8c2
1 changed files with 23 additions and 3 deletions
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26
src/test/java/com/thealgorithms/bitmanipulation/ParityCheckTest.java
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@@ -6,10 +6,30 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
import org.junit.jupiter.api.Test;
public class ParityCheckTest {
@Test
public void testIsEvenParity() {
assertTrue(ParityCheck.checkParity(0)); // 0 -> 0 ones
assertTrue(ParityCheck.checkParity(3)); // 11 -> 2 ones
assertTrue(ParityCheck.checkParity(5)); // 101 -> 2 ones
assertTrue(ParityCheck.checkParity(10)); // 1010 -> 2 ones
assertTrue(ParityCheck.checkParity(15)); // 1111 -> 4 ones
assertTrue(ParityCheck.checkParity(1023)); // 10 ones
}
@Test
public void testIsOddParity() {
assertTrue(ParityCheck.checkParity(5)); // 101 has 2 ones (even parity)
assertFalse(ParityCheck.checkParity(7)); // 111 has 3 ones (odd parity)
assertFalse(ParityCheck.checkParity(8)); // 1000 has 1 one (odd parity)
assertFalse(ParityCheck.checkParity(1)); // 1 -> 1 one
assertFalse(ParityCheck.checkParity(2)); // 10 -> 1 one
assertFalse(ParityCheck.checkParity(7)); // 111 -> 3 ones
assertFalse(ParityCheck.checkParity(8)); // 1000 -> 1 one
assertFalse(ParityCheck.checkParity(11)); // 1011 -> 3 ones
assertFalse(ParityCheck.checkParity(31)); // 11111 -> 5 ones
}
@Test
public void testLargeNumbers() {
assertTrue(ParityCheck.checkParity(0b10101010)); // 4 ones
assertFalse(ParityCheck.checkParity(0b100000000)); // 1 one
assertTrue(ParityCheck.checkParity(0xAAAAAAAA)); // Alternating bits, 16 ones
}
}