GrayCodeConversionTest.java

packagecom.thealgorithms.bitmanipulation;

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

importorg.junit.jupiter.api.Test;

publicclassGrayCodeConversionTest {

@Test
publicvoidtestBinaryToGray() {
assertEquals(7, GrayCodeConversion.binaryToGray(5)); // 101 -> 111
assertEquals(4, GrayCodeConversion.binaryToGray(7)); // 111 -> 100
assertEquals(1, GrayCodeConversion.binaryToGray(1)); // 001 -> 001
 }

@Test
publicvoidtestGrayToBinary() {
assertEquals(5, GrayCodeConversion.grayToBinary(7)); // 111 -> 101
assertEquals(4, GrayCodeConversion.grayToBinary(6)); // 110 -> 100
assertEquals(1, GrayCodeConversion.grayToBinary(1)); // 001 -> 001
 }

@Test
publicvoidtestBinaryGrayCycle() {
intbinary = 9; // 1001 in binary
intgray = GrayCodeConversion.binaryToGray(binary);
assertEquals(binary, GrayCodeConversion.grayToBinary(gray)); // Should return to original binary
 }
}