JUnit4 -> JUnit5

build.gradle

@@ -22,6 +22,7 @@ subprojects {
         slf4j_version  = '1.7.25'
         spring_version = '5.1.0.RELEASE'
         lombok_version = '1.18.2'
+        junit_version  = '5.3.1'
     }
 
     configurations {
@@ -42,12 +43,17 @@ subprojects {
         compileOnly (group: 'org.projectlombok', name: 'lombok', version: lombok_version)
 
         /* Testing */
-        testCompile (group: 'junit', name: 'junit', version: '4.12')
+        testImplementation (group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: junit_version)
+        testRuntimeOnly(group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: junit_version)
         testCompile (group: 'org.slf4j', name: 'slf4j-simple', version: slf4j_version)
         testCompile (group: 'org.mockito', name: 'mockito-core', version: '1.10.19')
         testCompile (group: 'org.springframework', name: 'spring-test', version: spring_version)
     }
 
+    test {
+        useJUnitPlatform()
+    }
+
     task copyDep(type: Copy) {
         into 'libs'
         from configurations.compile + configurations.runtime - configurations.compile_excludeCopy

core/src/test/java/mc/core/TestBlockLocation.java

@@ -1,28 +1,28 @@
 package mc.core;
 
 import mc.core.world.block.BlockLocation;
-import org.junit.Before;
+import org.junit.jupiter.api.BeforeEach;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.concurrent.ThreadLocalRandom;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.Assert.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 
-public class TestBlockLocation {
+class TestBlockLocation {
     private static final ThreadLocalRandom rnd = ThreadLocalRandom.current();
     private static final int minI = 0, maxI = 10;
     private int x, y, z;
 
-    @Before
+    @BeforeEach
-    public void before() {
+    void before() {
         x = rnd.nextInt(minI, maxI);
         y = rnd.nextInt(minI, maxI);
         z = rnd.nextInt(minI, maxI);
     }
 
     @Test
-    public void testEquals() {
+    void testEquals() {
         BlockLocation loc1 = new BlockLocation(x, y, z);
         BlockLocation loc2 = new BlockLocation(x, y, z);
         assertEquals(loc1, loc2);
@@ -32,7 +32,7 @@ public class TestBlockLocation {
     }
 
     @Test
-    public void testClone() {
+    void testClone() {
         BlockLocation locOrig = new BlockLocation(x, y, z);
         BlockLocation locClone = locOrig.clone();
         assertEquals(locOrig, locClone);

core/src/test/java/mc/core/TestEntityLocation.java

@@ -1,22 +1,22 @@
 package mc.core;
 
-import org.junit.Before;
+import org.junit.jupiter.api.BeforeEach;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.concurrent.ThreadLocalRandom;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.Assert.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 
-public class TestEntityLocation {
+class TestEntityLocation {
     private static final ThreadLocalRandom rnd = ThreadLocalRandom.current();
     private static final double minD = 0.0d, maxD = 10.0d;
     private static final float  minF = 0.0f, maxF = 359.9f;
     private double x, y, z;
     private float yaw, pitch;
 
-    @Before
+    @BeforeEach
-    public void before() {
+    void before() {
         x = rnd.nextDouble(minD, maxD);
         y = rnd.nextDouble(minD, maxD);
         z = rnd.nextDouble(minD, maxD);
@@ -25,7 +25,7 @@ public class TestEntityLocation {
     }
 
     @Test
-    public void testEquals() {
+    void testEquals() {
         EntityLocation loc1 = new EntityLocation(x, y, z, yaw, pitch);
         EntityLocation loc2 = new EntityLocation(x, y, z, yaw, pitch);
         assertEquals(loc1, loc2);
@@ -38,14 +38,14 @@ public class TestEntityLocation {
     }
 
     @Test
-    public void testClone() {
+    void testClone() {
         EntityLocation locOrig = new EntityLocation(x, y, z, yaw, pitch);
         EntityLocation locClone = locOrig.clone();
         assertEquals(locOrig, locClone);
     }
 
     @Test
-    public void testGetBlockXZ() {
+    void testGetBlockXZ() {
         EntityLocation location;
 
         location = new EntityLocation(0d, 0, 0d, 0f, 0f);

core/src/test/java/mc/core/TestImmutableEntityLocation.java

@@ -1,32 +1,30 @@
 package mc.core;
 
-import org.junit.Rule;
+import org.junit.jupiter.api.Test;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
-public class TestImmutableEntityLocation {
+class TestImmutableEntityLocation {
-    @Rule
-    public ExpectedException thrown = ExpectedException.none();
 
     @Test
-    public void testSetValue() {
+    void testSetValue() {
         EntityLocation location = new ImmutableEntityLocation(1d, 2d, 3d, 4f, 5f);
 
-        thrown.expect(UnsupportedOperationException.class);
+        assertThrows(UnsupportedOperationException.class, () -> {
-        location.setX(1);
+            location.setX(1);
-        location.setY(1);
+            location.setY(1);
-        location.setZ(1);
+            location.setZ(1);
-        location.setYaw(1);
+            location.setYaw(1);
-        location.setPitch(1);
+            location.setPitch(1);
-        location.setXYZ(1, 2, 3);
+            location.setXYZ(1, 2, 3);
-        location.setYawPitch(1, 2);
+            location.setYawPitch(1, 2);
-        location.set(EntityLocation.ZERO());
+            location.set(EntityLocation.ZERO());
+        });
     }
 
     @Test
-    public void testClone() {
+    void testClone() {
         EntityLocation locOrig = new ImmutableEntityLocation(1d, 2d, 3d, 4f, 5f);
         EntityLocation locClone = locOrig.clone();
 

core/src/test/java/mc/core/text/TestText.java

@@ -1,12 +1,12 @@
 package mc.core.text;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.*;
+import static org.junit.jupiter.api.Assertions.*;
 
-public class TestText {
+class TestText {
     @Test
-    public void testToPlain() {
+    void testToPlain() {
         final String m1 = "mes";
         final String m2 = "sage";
         final String message = m1 + m2;
@@ -26,7 +26,7 @@ public class TestText {
     }
 
     @Test
-    public void testEquals() {
+    void testEquals() {
         assertEquals(Text.of(), Text.of(""));
         assertEquals(Text.of(), Text.builder().build());
         assertEquals(Text.of(), Text.builder("").build());
@@ -44,7 +44,7 @@ public class TestText {
     }
 
     @Test
-    public void testEmpty() {
+    void testEmpty() {
         assertTrue(Text.of().isEmpty());
         assertTrue(Text.of((String) null).isEmpty());
         assertTrue(Text.of((Text) null).isEmpty());

core/src/test/java/mc/core/utils/TestCompactedCoords.java

@@ -1,15 +1,14 @@
 package mc.core.utils;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.concurrent.ThreadLocalRandom;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-
+class TestCompactedCoords {
-public class TestCompactedCoords {
     @Test
-    public void testXZ() {
+    void testXZ() {
         ThreadLocalRandom random = ThreadLocalRandom.current();
 
         for (int i = 0; i < 100; i++) {

h2_playermanager/src/test/java/mc/core/h2db/TestH2Player.java

@@ -1,15 +1,15 @@
 package mc.core.h2db;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.UUID;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.Assert.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 
-public class TestH2Player {
+class TestH2Player {
     @Test
-    public void testEquals() {
+    void testEquals() {
         UUID uuid = UUID.randomUUID();
 
         H2Player player1 = new H2Player();

h2_playermanager/src/test/java/mc/core/h2db/TestH2PlayerManager.java

@@ -4,21 +4,21 @@ import mc.core.EntityLocation;
 import mc.core.h2db.service.H2PlayerService;
 import mc.core.player.Player;
 import mc.core.world.World;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.ContextConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
 
 import java.util.List;
 
-import static org.junit.Assert.*;
+import static org.junit.jupiter.api.Assertions.*;
 
-@RunWith(SpringJUnit4ClassRunner.class)
+@ExtendWith(SpringExtension.class)
 @ContextConfiguration(classes = {TestSpringConfig.class})
 @DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_EACH_TEST_METHOD)
-public class TestH2PlayerManager {
+class TestH2PlayerManager {
     @Autowired
     private H2PlayerService h2PlayerService;
     @Autowired
@@ -27,7 +27,7 @@ public class TestH2PlayerManager {
     private H2PlayerManager playerManager;
 
     @Test
-    public void testCreatePlayer() {
+    void testCreatePlayer() {
         final String playerName = "NEW_PLAYER";
         final Player newPlayer = playerManager.createPlayer(playerName, EntityLocation.ZERO(), mockWorld);
 
@@ -45,7 +45,7 @@ public class TestH2PlayerManager {
     }
 
     @Test
-    public void testJoinServer() {
+    void testJoinServer() {
         assertEquals(0, playerManager.getCountPlayers());
 
         final String playerName = "NEW_PLAYER";
@@ -57,7 +57,7 @@ public class TestH2PlayerManager {
     }
 
     @Test
-    public void testLeftServer() {
+    void testLeftServer() {
         assertEquals(0, playerManager.getCountPlayers());
 
         final String playerName = "NEW_PLAYER";
@@ -87,7 +87,7 @@ public class TestH2PlayerManager {
     }
 
     @Test
-    public void testGetPlayer() {
+    void testGetPlayer() {
         assertEquals(0, playerManager.getCountPlayers());
 
         final String playerName = "NEW_PLAYER";
@@ -104,7 +104,7 @@ public class TestH2PlayerManager {
     }
 
     @Test
-    public void testGetPlayers() {
+    void testGetPlayers() {
         assertEquals(0, playerManager.getCountPlayers());
 
         final String playerName = "NEW_PLAYER";
@@ -128,7 +128,7 @@ public class TestH2PlayerManager {
     }
 
     @Test
-    public void testGetCountPlayers() {
+    void testGetCountPlayers() {
         assertEquals(0, playerManager.getCountPlayers());
 
         final String playerName = "NEW_PLAYER";
@@ -145,7 +145,7 @@ public class TestH2PlayerManager {
     }
 
     @Test
-    public void testGetOfflinePlayer() {
+    void testGetOfflinePlayer() {
         final String playerName = "NEW_PLAYER";
         final Player player = playerManager.createPlayer(playerName, EntityLocation.ZERO(), mockWorld);
         playerManager.joinServer(player);

h2_playermanager/src/test/java/mc/core/h2db/service/H2PlayerServiceTest.java

@@ -3,21 +3,22 @@ package mc.core.h2db.service;
 import mc.core.EntityLocation;
 import mc.core.h2db.H2Player;
 import mc.core.h2db.TestSpringConfig;
-import org.junit.Assert;
+import org.junit.jupiter.api.Test;
-import org.junit.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
-import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.ContextConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
 
 import java.util.UUID;
 import java.util.concurrent.ThreadLocalRandom;
 
-@RunWith(SpringJUnit4ClassRunner.class)
+import static org.junit.jupiter.api.Assertions.*;
+
+@ExtendWith(SpringExtension.class)
 @ContextConfiguration(classes = {TestSpringConfig.class})
 @DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_EACH_TEST_METHOD)
-public class H2PlayerServiceTest {
+class H2PlayerServiceTest {
     @Autowired
     private H2PlayerService h2PlayerService;
 
@@ -43,91 +44,101 @@ public class H2PlayerServiceTest {
     }
 
     @Test
-    public void save() {
+    void save() {
         H2Player player = buildPlayer();
         H2Player savedPlayer = h2PlayerService.save(player);
 
         player.setId(savedPlayer.getId()); //FIXME костыль, однако
-        Assert.assertEquals(player, savedPlayer);
+        assertEquals(player, savedPlayer);
-    }
-
-    @Test(expected = Exception.class)
-    public void save_NameEmpty() {
-        H2Player player = buildPlayer();
-        player.setName("");
-        h2PlayerService.save(player);
-    }
-
-    @Test(expected = Exception.class)
-    public void save_NameNull() {
-        H2Player player = buildPlayer();
-        player.setName(null);
-        h2PlayerService.save(player);
-    }
-
-    @Test(expected = Exception.class)
-    public void save_UuidNull() {
-        H2Player player = buildPlayer();
-        player.setUuid(null);
-        h2PlayerService.save(player);
-    }
-
-    @Test(expected = Exception.class)
-    public void save_LocationNull() {
-        H2Player player = buildPlayer();
-        player.setLocation(null);
-        h2PlayerService.save(player);
     }
 
     @Test
-    public void remove() {
+    void save_NameEmpty() {
+        assertThrows(Exception.class, () -> {
+            H2Player player = buildPlayer();
+            player.setName("");
+            h2PlayerService.save(player);
+        });
+    }
+
+    @Test
+    void save_NameNull() {
+        assertThrows(Exception.class, () -> {
+            H2Player player = buildPlayer();
+            player.setName(null);
+            h2PlayerService.save(player);
+        });
+    }
+
+    @Test
+    void save_UuidNull() {
+        assertThrows(Exception.class, () -> {
+            H2Player player = buildPlayer();
+            player.setUuid(null);
+            h2PlayerService.save(player);
+        });
+    }
+
+    @Test
+    void save_LocationNull() {
+        assertThrows(Exception.class, () -> {
+            H2Player player = buildPlayer();
+            player.setLocation(null);
+            h2PlayerService.save(player);
+        });
+    }
+
+    @Test
+    void remove() {
         H2Player player = h2PlayerService.save(buildPlayer());
         h2PlayerService.remove(player);
 
         H2Player player2 = h2PlayerService.getById(player.getId());
-        Assert.assertNull(player2);
+        assertNull(player2);
-    }
-
-    @Test(expected = Exception.class)
-    public void remove_NotExists() {
-        H2Player player = h2PlayerService.save(buildPlayer());
-        h2PlayerService.remove(player);
-        h2PlayerService.remove(player);
     }
 
     @Test
-    public void getByName() {
+    void remove_NotExists() {
+        assertThrows(Exception.class, () -> {
+            H2Player player = h2PlayerService.save(buildPlayer());
+            h2PlayerService.remove(player);
+            h2PlayerService.remove(player);
+        });
+    }
+
+    @Test
+    void getByName() {
         H2Player player = h2PlayerService.save(buildPlayer());
 
         H2Player player2 = h2PlayerService.getByName(player.getName());
-        Assert.assertEquals(player, player2);
+        assertEquals(player, player2);
     }
 
     @Test
-    public void getByName_NotExists() {
+    void getByName_NotExists() {
-        Assert.assertNull(h2PlayerService.getByName("UNKNOW_PLAYER"));
+        assertNull(h2PlayerService.getByName("UNKNOW_PLAYER"));
     }
 
     @Test
-    public void getByName_Empty() {
+    void getByName_Empty() {
-        Assert.assertNull(h2PlayerService.getByName(""));
+        assertNull(h2PlayerService.getByName(""));
     }
 
     @Test
-    public void getByName_Null() {
+    void getByName_Null() {
-        Assert.assertNull(h2PlayerService.getByName(null));
+        assertNull(h2PlayerService.getByName(null));
     }
 
     @Test
-    public void getById() {
+    void getById() {
         H2Player player = h2PlayerService.save(buildPlayer());
 
         H2Player player2 = h2PlayerService.getById(player.getId());
-        Assert.assertEquals(player, player2);
+        assertEquals(player, player2);
     }
 
     @Test
-    public void getById_NotExists() {
+    void getById_NotExists() {
-        Assert.assertNull(h2PlayerService.getById(9999));
+        assertNull(h2PlayerService.getById(9999));
     }
 }

proto_1.12.2/src/test/java/mc/core/network/proto_1_12_2/packets/TestByteArrayInputNetStream.java

@@ -1,17 +1,17 @@
 package mc.core.network.proto_1_12_2.packets;
 
 import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.Random;
 
-import static org.junit.Assert.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-public class TestByteArrayInputNetStream {
+class TestByteArrayInputNetStream {
     private Random rnd = new Random();
 
     @Test
-    public void testReadByte() {
+    void testReadByte() {
         final byte b0 = (byte) rnd.nextInt();
         ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
         netStream.writeByte(b0);
@@ -23,7 +23,7 @@ public class TestByteArrayInputNetStream {
     }
 
     @Test
-    public void testReadInt() {
+    void testReadInt() {
         final int i0 = rnd.nextInt();
         ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
         netStream.writeInt(i0);
@@ -35,7 +35,7 @@ public class TestByteArrayInputNetStream {
     }
 
     @Test
-    public void testReadFloat() {
+    void testReadFloat() {
         final float f0 = rnd.nextFloat();
         ByteArrayOutputNetStream netStream = new ByteArrayOutputNetStream();
         netStream.writeFloat(f0);
@@ -43,6 +43,6 @@ public class TestByteArrayInputNetStream {
 
         ByteArrayInputNetStream netInputStream = new ByteArrayInputNetStream(buffer);
         float f1 = netInputStream.readFloat();
-        assertEquals(f0, f1, 0.0f);
+        assertEquals(f0, f1, 0.00001f);
     }
 }

proto_1.12.2/src/test/java/mc/core/network/proto_1_12_2/packets/TestChunkdataPacket.java

@@ -9,31 +9,31 @@ import mc.core.world.block.BlockFactory;
 import mc.core.world.block.BlockType;
 import mc.core.world.chunk.Chunk;
 import mc.core.world.chunk.ChunkSection;
-import org.junit.Before;
+import org.junit.jupiter.api.BeforeAll;
-import org.junit.BeforeClass;
+import org.junit.jupiter.api.BeforeEach;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
 import java.io.InputStream;
 
-import static org.junit.Assert.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.mockito.Matchers.anyInt;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
-public class TestChunkdataPacket {
+class TestChunkdataPacket {
     private static byte[] expectedPacketData;
     private World world;
 
-    @BeforeClass
+    @BeforeAll
-    public static void beforeClassTest() throws IOException {
+    static void beforeClassTest() throws IOException {
         InputStream inputStream = TestChunkdataPacket.class.getResourceAsStream("ChunkDataPacket.bin");
         expectedPacketData = ByteStreams.toByteArray(inputStream);
     }
 
-    @Before
+    @BeforeEach
-    public void prepareWorld() {
+    void prepareWorld() {
         final ChunkSection chunkSection = mock(ChunkSection.class);
         when(chunkSection.getSkyLight(anyInt(), anyInt(), anyInt())).thenAnswer(invocation -> {
             int y = (int)invocation.getArguments()[1];
@@ -77,7 +77,7 @@ public class TestChunkdataPacket {
     }
 
     @Test
-    public void test() {
+    void test() {
         ChunkDataPacket packet = new ChunkDataPacket();
         packet.setX(0);
         packet.setZ(0);

proto_1.12.2/src/test/java/mc/core/network/proto_1_12_2/packets/TestPlayerAbilitiesPacket.java

@@ -1,19 +1,19 @@
 package mc.core.network.proto_1_12_2.packets;
 
 import mc.core.network.proto_1_12_2.ByteArrayOutputNetStream;
-import org.junit.Before;
+import org.junit.jupiter.api.BeforeEach;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.Random;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-public class TestPlayerAbilitiesPacket {
+class TestPlayerAbilitiesPacket {
     private Random rnd = new Random();
     private PlayerAbilitiesPacket packet;
 
-    @Before
+    @BeforeEach
-    public void before() {
+    void before() {
         packet = new PlayerAbilitiesPacket();
         packet.setGodMode(rnd.nextBoolean());
         packet.setFlying(rnd.nextBoolean());
@@ -23,7 +23,7 @@ public class TestPlayerAbilitiesPacket {
     }
 
     @Test
-    public void test() {
+    void test() {
         ByteArrayOutputNetStream netOutputStream = new ByteArrayOutputNetStream();
         packet.writeSelf(netOutputStream);
 
@@ -31,10 +31,10 @@ public class TestPlayerAbilitiesPacket {
         PlayerAbilitiesPacket outPkt = new PlayerAbilitiesPacket();
         outPkt.readSelf(netInputStream);
 
-        assertEquals("god mode", packet.isGodMode(), outPkt.isGodMode());
+        assertEquals(packet.isGodMode(), outPkt.isGodMode(), "god mode");
-        assertEquals("flying", packet.isFlying(), outPkt.isFlying());
+        assertEquals(packet.isFlying(), outPkt.isFlying(), "flying");
-        assertEquals("can fly", packet.isCanFly(), outPkt.isCanFly());
+        assertEquals(packet.isCanFly(), outPkt.isCanFly(), "can fly");
-        assertEquals("instant destroy block", packet.isInstantDestroyBlocks(), outPkt.isInstantDestroyBlocks());
+        assertEquals(packet.isInstantDestroyBlocks(), outPkt.isInstantDestroyBlocks(), "instant destroy block");
-        assertEquals("flying speed", packet.getFlyingSpeed(), outPkt.getFlyingSpeed(), 0.0f);
+        assertEquals(packet.getFlyingSpeed(), outPkt.getFlyingSpeed(), 0.00001f, "flying speed");
     }
 }

proto_1.12.2/src/test/java/mc/core/network/proto_1_12_2/serializers/TestBlockLocationSerializer.java

@@ -1,27 +1,27 @@
 package mc.core.network.proto_1_12_2.serializers;
 
 import mc.core.world.block.BlockLocation;
-import org.junit.Before;
+import org.junit.jupiter.api.BeforeEach;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.concurrent.ThreadLocalRandom;
 
-import static org.junit.Assert.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-public class TestBlockLocationSerializer {
+class TestBlockLocationSerializer {
     private static final ThreadLocalRandom rnd = ThreadLocalRandom.current();
     private static final int minI = 0, maxI = 10;
     private int x, y, z;
 
-    @Before
+    @BeforeEach
-    public void before() {
+    void before() {
         x = rnd.nextInt(minI, maxI);
         y = rnd.nextInt(minI, maxI);
         z = rnd.nextInt(minI, maxI);
     }
 
     @Test
-    public void test() {
+    void test() {
         BlockLocation location = new BlockLocation(x, y, z);
         final long serializedCoords = BlockLocationSerializer.toLong(location);