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Enhance docs, add more tests in EndianConverter (#5921)

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This commit is contained in:
Hardik Pawar
2024-10-27 00:05:36 +05:30
committed by GitHub
parent 62c9309a31
commit b5a097c56a
2 changed files with 52 additions and 15 deletions
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35
src/test/java/com/thealgorithms/conversions/EndianConverterTest.java
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@@ -2,21 +2,34 @@ package com.thealgorithms.conversions;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
public class EndianConverterTest {
@Test
public void testBigToLittleEndian() {
assertEquals(0x78563412, EndianConverter.bigToLittleEndian(0x12345678));
assertEquals(0x00000000, EndianConverter.bigToLittleEndian(0x00000000));
assertEquals(0x00000001, EndianConverter.bigToLittleEndian(0x01000000));
@ParameterizedTest
@CsvSource({
"0x78563412, 0x12345678", "0x00000000, 0x00000000", "0x00000001, 0x01000000",
"0xFFFFFFFF, 0xFFFFFFFF", // -1 in two's complement
"0x0000007F, 0x7F000000" // Positive boundary case
})
public void
testLittleToBigEndian(String inputHex, String expectedHex) {
int input = (int) Long.parseLong(inputHex.substring(2), 16); // Convert hex string to int
int expected = (int) Long.parseLong(expectedHex.substring(2), 16); // Convert hex string to int
assertEquals(expected, EndianConverter.littleToBigEndian(input));
}
@Test
public void testLittleToBigEndian() {
assertEquals(0x12345678, EndianConverter.littleToBigEndian(0x78563412));
assertEquals(0x00000000, EndianConverter.littleToBigEndian(0x00000000));
assertEquals(0x01000000, EndianConverter.littleToBigEndian(0x00000001));
@ParameterizedTest
@CsvSource({
"0x12345678, 0x78563412", "0x00000000, 0x00000000", "0x01000000, 0x00000001",
"0xFFFFFFFF, 0xFFFFFFFF", // -1 in two's complement
"0x7F000000, 0x0000007F" // Positive boundary case
})
public void
testBigToLittleEndian(String inputHex, String expectedHex) {
int input = (int) Long.parseLong(inputHex.substring(2), 16); // Convert hex string to int
int expected = (int) Long.parseLong(expectedHex.substring(2), 16); // Convert hex string to int
assertEquals(expected, EndianConverter.bigToLittleEndian(input));
}
}