migrate two tests to Junit5

Author: fishercoder1534

build.gradle

@@ -32,8 +32,10 @@ repositories {
 
 dependencies {
     compile 'com.google.code.gson:gson:2.8.0'
-    compile 'junit:junit:4.13'
     compile group: 'org.apache.commons', name: 'commons-collections4', version: '4.0'
+
+//    TODO: to remove Junit4 after all tests are migrated to Junit5
+    compile 'junit:junit:4.13'
     testCompile "junit:junit:4.13.1"
 
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'

src/test/java/com/fishercoder/_1Test.java

@@ -1,17 +1,17 @@
 package com.fishercoder;
 
 import com.fishercoder.solutions._1;
-import org.junit.BeforeClass;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
 
 public class _1Test {
     private static _1.Solution1 solution1;
     private static int[] nums;
 
-    @BeforeClass
-    public static void setup() {
+    @BeforeEach
+    public void setup() {
         solution1 = new _1.Solution1();
     }
 

src/test/java/com/fishercoder/_2Test.java

@@ -3,19 +3,19 @@
 import com.fishercoder.common.classes.ListNode;
 import com.fishercoder.common.utils.LinkedListUtils;
 import com.fishercoder.solutions._2;
-import org.junit.BeforeClass;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class _2Test {
     private static _2.Solution1 solution1;
     private static ListNode l1;
     private static ListNode l2;
     private static ListNode expected;
 
-    @BeforeClass
-    public static void setup() {
+    @BeforeEach
+    public void setup() {
         solution1 = new _2.Solution1();
     }