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add Test for SelectionSort #3091

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56 changes: 31 additions & 25 deletions src/test/java/com/thealgorithms/maths/SumOfDigitsTest.java
Original file line number Diff line number Diff line change
@@ -1,25 +1,31 @@
package com.thealgorithms.maths;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

/**
* @author SirFixalot16
* @since 01/06/22
*/
public class SumOfDigitsTest {
@Test
void isSumOf2Digits() {
SumOfDigits sum = new SumOfDigits();
assertEquals(11, sum.sumOfDigits(56));
}
void isSumOf3Digits() {
SumOfDigits sum = new SumOfDigits();
assertEquals(12, sum.sumOfDigits(192));
}
void isSumOf4Digits() {
SumOfDigits sum = new SumOfDigits();
assertEquals(25, sum.sumOfDigits(8962));
}
}
package com.thealgorithms.maths;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

class SumOfDigitsTest {

SumOfDigits SoD = new SumOfDigits();

@Test
void testZero() {
assertEquals(0, SoD.sumOfDigits(0));
assertEquals(0, SoD.sumOfDigitsRecursion(0));
assertEquals(0, SoD.sumOfDigitsFast(0));
}

@Test
void testPositive() {
assertEquals(15, SoD.sumOfDigits(12345));
assertEquals(15, SoD.sumOfDigitsRecursion(12345));
assertEquals(15, SoD.sumOfDigitsFast(12345));
}

@Test
void testNegative() {
assertEquals(6, SoD.sumOfDigits(-123));
assertEquals(6, SoD.sumOfDigitsRecursion(-123));
assertEquals(6, SoD.sumOfDigitsFast(-123));
}
}
35 changes: 35 additions & 0 deletions src/test/java/com/thealgorithms/sorts/SelectionSortTest.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
package com.thealgorithms.sorts;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

class SelectionSortTest {

@Test
// valid test case
void IntegerArrTest() {
Integer[] arr = {4, 23, 6, 78, 1, 54, 231, 9, 12};
SelectionSort selectionSort = new SelectionSort();

assertArrayEquals(new Integer[]{1, 4, 6, 9, 12, 23, 54, 78, 231}, selectionSort.sort(arr));
}

@Test
// valid test case
void StringArrTest() {
String[] arr = {"c", "a", "e", "b", "d"};
SelectionSort selectionSort = new SelectionSort();

assertArrayEquals(new String[]{"a", "b", "c", "d", "e"}, selectionSort.sort(arr));
}

@Test
// invalid test case
void emptyArrTest() {
Integer[] arr = {};
SelectionSort selectionSort = new SelectionSort();

assertArrayEquals(new Integer[]{}, selectionSort.sort(arr));
}
}