checkstyle: fix formatting, revert test

Author: alxklm

src/main/java/com/thealgorithms/sorts/RadixSort.java

@@ -1,7 +1,6 @@
 package com.thealgorithms.sorts;
 
 import com.thealgorithms.maths.NumberOfDigits;
-
 import java.util.Arrays;
 
 /**

src/test/java/com/thealgorithms/sorts/SlowSortTest.java

@@ -1,17 +1,79 @@
 package com.thealgorithms.sorts;
 
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+
+import org.junit.jupiter.api.Test;
+
 /**
  * @author Rebecca Velez (https://github.com/rebeccavelez)
  * @see SlowSort
  */
 
-public class SlowSortTest extends SortingAlgorithmTest {
-    protected int getGeneratedArraySize() {
-        return 100;
+public class SlowSortTest {
+
+    private SlowSort slowSort = new SlowSort();
+
+    @Test
+    public void slowSortEmptyArray() {
+        Integer[] inputArray = {};
+        Integer[] outputArray = slowSort.sort(inputArray);
+        Integer[] expectedOutput = {};
+        assertArrayEquals(outputArray, expectedOutput);
+    }
+
+    @Test
+    public void slowSortSingleIntegerElementArray() {
+        Integer[] inputArray = {5};
+        Integer[] outputArray = slowSort.sort(inputArray);
+        Integer[] expectedOutput = {5};
+        assertArrayEquals(outputArray, expectedOutput);
+    }
+
+    @Test
+    public void slowSortSingleStringElementArray() {
+        String[] inputArray = {"k"};
+        String[] outputArray = slowSort.sort(inputArray);
+        String[] expectedOutput = {"k"};
+        assertArrayEquals(outputArray, expectedOutput);
+    }
+
+    @Test
+    public void slowSortIntegerArray() {
+        Integer[] inputArray = {8, 84, 53, -683, 953, 64, 2, 202, 98, -10};
+        Integer[] outputArray = slowSort.sort(inputArray);
+        Integer[] expectedOutput = {-683, -10, 2, 8, 53, 64, 84, 98, 202, 953};
+        assertArrayEquals(outputArray, expectedOutput);
+    }
+
+    @Test
+    public void slowSortDuplicateIntegerArray() {
+        Integer[] inputArray = {8, 84, 8, -2, 953, 64, 2, 953, 98};
+        Integer[] outputArray = slowSort.sort(inputArray);
+        Integer[] expectedOutput = {-2, 2, 8, 8, 64, 84, 98, 953, 953};
+        assertArrayEquals(outputArray, expectedOutput);
+    }
+
+    @Test
+    public void slowSortStringArray() {
+        String[] inputArray = {"g", "d", "a", "b", "f", "c", "e"};
+        String[] outputArray = slowSort.sort(inputArray);
+        String[] expectedOutput = {"a", "b", "c", "d", "e", "f", "g"};
+        assertArrayEquals(outputArray, expectedOutput);
+    }
+
+    @Test
+    public void slowSortDuplicateStringArray() {
+        String[] inputArray = {"g", "d", "a", "g", "b", "f", "d", "c", "e"};
+        String[] outputArray = slowSort.sort(inputArray);
+        String[] expectedOutput = {"a", "b", "c", "d", "d", "e", "f", "g", "g"};
+        assertArrayEquals(outputArray, expectedOutput);
     }
 
-    @Override
-    SortAlgorithm getSortAlgorithm() {
-        return new SlowSort();
+    @Test
+    public void slowSortStringSymbolArray() {
+        String[] inputArray = {"cbf", "auk", "ó", "(b", "a", ")", "au", "á", "cba", "auk", "(a", "bhy", "cba"};
+        String[] outputArray = slowSort.sort(inputArray);
+        String[] expectedOutput = {"(a", "(b", ")", "a", "au", "auk", "auk", "bhy", "cba", "cba", "cbf", "á", "ó"};
+        assertArrayEquals(outputArray, expectedOutput);
     }
 }