From 44697df98aa2472cd3109e45eb995f6204670944 Mon Sep 17 00:00:00 2001 From: Jesse Lai Date: Fri, 21 Oct 2022 10:09:33 +0700 Subject: [PATCH] add quick sort unit test --- .../com/rampatra/sorting/QuickSortTest.java | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 src/main/java/com/rampatra/sorting/QuickSortTest.java diff --git a/src/main/java/com/rampatra/sorting/QuickSortTest.java b/src/main/java/com/rampatra/sorting/QuickSortTest.java new file mode 100644 index 00000000..c8c781b6 --- /dev/null +++ b/src/main/java/com/rampatra/sorting/QuickSortTest.java @@ -0,0 +1,53 @@ +package com.rampatra.sorting; + +import org.junit.jupiter.api.Test; + +import static org.junit.jupiter.api.Assertions.assertArrayEquals; + +public class QuickSortTest { + @Test + public void testWithEmptyArray() { + int[] array = {}; + int[] expectedArray = {}; + + QuickSort.quickSort(array); + assertArrayEquals(expectedArray, array); + } + + @Test + public void testWithOneElementArray() { + int[] array = {9}; + int[] expectedArray = {9}; + + QuickSort.quickSort(array); + + assertArrayEquals(expectedArray, array); + } + + @Test + public void testWithAnArray() { + int[] array = {897, 695, 101, 377, 859, 176, 515, 613, 154, 978, 797, 136, 575, 577, 232, 118, 301, 951, 679, 114}; + int[] expectedArray = {101, 114, 118, 136, 154, 176, 232, 301, 377, 515, 575, 577, 613, 679, 695, 797, 859, 897, 951, 978}; + QuickSort.quickSort(array); + + assertArrayEquals(expectedArray, array); + } + + @Test + public void testWithSortedArray() { + int[] array = {101, 114, 118, 136, 154, 176, 232, 301, 377, 515, 575, 577, 613, 679, 695, 797, 859, 897, 951, 978}; + int[] expectedArray = {101, 114, 118, 136, 154, 176, 232, 301, 377, 515, 575, 577, 613, 679, 695, 797, 859, 897, 951, 978}; + QuickSort.quickSort(array); + + assertArrayEquals(expectedArray, array); + } + + @Test + public void testWithSortedReverseArray() { + int[] array = {978, 951, 897, 859, 797, 695, 679, 613, 577, 575, 515, 377, 301, 232, 176, 154, 136, 118, 114, 101}; + int[] expectedArray = {101, 114, 118, 136, 154, 176, 232, 301, 377, 515, 575, 577, 613, 679, 695, 797, 859, 897, 951, 978}; + QuickSort.quickSort(array); + + assertArrayEquals(expectedArray, array); + } +} pFad - Phonifier reborn

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