Move Core to JUnit 5

buildSrc/src/main/kotlin/PlatformConfig.kt

@@ -6,6 +6,7 @@ import org.gradle.api.plugins.JavaPluginConvention
 import org.gradle.api.plugins.quality.CheckstyleExtension
 import org.gradle.api.tasks.bundling.Jar
 import org.gradle.api.tasks.javadoc.Javadoc
+import org.gradle.api.tasks.testing.Test
 import org.gradle.external.javadoc.CoreJavadocOptions
 import org.gradle.kotlin.dsl.apply
 import org.gradle.kotlin.dsl.configure
@@ -39,8 +40,13 @@ fun Project.applyPlatformAndCoreConfiguration() {
         toolVersion = "7.6.1"
     }
 
+    tasks.withType<Test>().configureEach {
+        useJUnitPlatform()
+    }
+
     dependencies {
-        "testImplementation"("junit:junit:4.12")
+        "testImplementation"("org.junit.jupiter:junit-jupiter-api:${Versions.JUNIT}")
+        "testRuntime"("org.junit.jupiter:junit-jupiter-engine:${Versions.JUNIT}")
     }
 
     // Java 8 turns on doclint which we fail

buildSrc/src/main/kotlin/Versions.kt

@@ -3,4 +3,5 @@ object Versions {
     const val TEXT_EXTRAS = "3.0.2"
     const val PISTON = "0.4.2"
     const val AUTO_VALUE = "1.6.5"
+    const val JUNIT = "5.5.0"
 }

worldedit-bukkit/build.gradle.kts

@@ -22,7 +22,9 @@ configurations.all {
 dependencies {
     "api"(project(":worldedit-core"))
     "api"(project(":worldedit-libs:bukkit"))
-    "api"("org.bukkit:bukkit:1.13.2-R0.1-SNAPSHOT")
+    "api"("org.bukkit:bukkit:1.13.2-R0.1-SNAPSHOT") {
+        exclude("junit", "junit")
+    }
     "compileOnly"("com.destroystokyo.paper:paper-api:1.13.2-R0.1-SNAPSHOT")
     "implementation"("io.papermc:paperlib:1.0.2")
     "compileOnly"("com.sk89q:dummypermscompat:1.10")

worldedit-core/src/test/java/com/sk89q/minecraft/util/commands/CommandContextTest.java

@@ -19,19 +19,20 @@
 
 package com.sk89q.minecraft.util.commands;
 
-import org.junit.Before;
+import org.junit.jupiter.api.BeforeEach;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.util.Arrays;
 import java.util.HashSet;
 
-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.junit.Assert.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertThrows;
-import static org.junit.Assert.fail;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 public class CommandContextTest {
 
@@ -39,7 +40,7 @@ public class CommandContextTest {
     private static final String firstCmdString = "herpderp -opw testers \"mani world\" 'another thing'  because something";
     CommandContext firstCommand;
 
-    @Before
+    @BeforeEach
     public void setUpTest() {
         try {
             firstCommand = new CommandContext(firstCmdString, new HashSet<>(Arrays.asList('o', 'w')));
@@ -49,10 +50,12 @@ public class CommandContextTest {
         }
     }
 
-    @Test(expected = CommandException.class)
+    @Test
-    public void testInvalidFlags() throws CommandException {
+    public void testInvalidFlags() {
         final String failingCommand = "herpderp -opw testers";
+        assertThrows(CommandException.class, () -> {
             new CommandContext(failingCommand, new HashSet<>(Arrays.asList('o', 'w')));
+        });
     }
 
     @Test

worldedit-core/src/test/java/com/sk89q/worldedit/extent/transform/BlockTransformExtentTest.java

@@ -19,33 +19,33 @@
 
 package com.sk89q.worldedit.extent.transform;
 
-import static org.junit.Assert.assertEquals;
-
 import com.sk89q.worldedit.math.transform.AffineTransform;
 import com.sk89q.worldedit.math.transform.Transform;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockType;
-import org.junit.Before;
+import org.junit.jupiter.api.BeforeEach;
-import org.junit.Ignore;
+import org.junit.jupiter.api.Disabled;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.HashSet;
 import java.util.Set;
 
-@Ignore("A platform is currently required to get properties, preventing this test.")
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@Disabled("A platform is currently required to get properties, preventing this test.")
 public class BlockTransformExtentTest {
 
     private static final Transform ROTATE_90 = new AffineTransform().rotateY(-90);
     private static final Transform ROTATE_NEG_90 = new AffineTransform().rotateY(90);
     private final Set<BlockType> ignored = new HashSet<>();
 
-    @Before
+    @BeforeEach
-    public void setUp() throws Exception {
+    public void setUp() {
         BlockType.REGISTRY.register("worldedit:test", new BlockType("worldedit:test"));
     }
 
     @Test
-    public void testTransform() throws Exception {
+    public void testTransform() {
         for (BlockType type : BlockType.REGISTRY.values()) {
             if (ignored.contains(type)) {
                 continue;

worldedit-core/src/test/java/com/sk89q/worldedit/internal/command/CommandArgParserTest.java

@@ -21,10 +21,10 @@ package com.sk89q.worldedit.internal.command;
 
 import com.google.common.collect.ImmutableList;
 import com.sk89q.worldedit.internal.util.Substring;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import static com.sk89q.worldedit.internal.command.CommandArgParser.spaceSplit;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class CommandArgParserTest {
     @Test

worldedit-core/src/test/java/com/sk89q/worldedit/internal/expression/ExpressionTest.java

@@ -19,16 +19,6 @@
 
 package com.sk89q.worldedit.internal.expression;
 
-import static java.lang.Math.atan2;
-import static java.lang.Math.sin;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mockito;
-
 import com.sk89q.worldedit.LocalConfiguration;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.extension.platform.Platform;
@@ -36,9 +26,18 @@ import com.sk89q.worldedit.internal.expression.lexer.LexerException;
 import com.sk89q.worldedit.internal.expression.parser.ParserException;
 import com.sk89q.worldedit.internal.expression.runtime.EvaluationException;
 import com.sk89q.worldedit.internal.expression.runtime.ExpressionEnvironment;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+import static java.lang.Math.atan2;
+import static java.lang.Math.sin;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 public class ExpressionTest {
-    @Before
+    @BeforeEach
     public void setup() {
         Platform mockPlat = Mockito.mock(Platform.class);
         Mockito.when(mockPlat.getConfiguration()).thenReturn(new LocalConfiguration() {
@@ -74,7 +73,7 @@ public class ExpressionTest {
             compile("#");
             fail("Error expected");
         } catch (LexerException e) {
-            assertEquals("Error position", 0, e.getPosition());
+            assertEquals(0, e.getPosition(), "Error position");
         }
 
         // test parser errors
@@ -82,13 +81,13 @@ public class ExpressionTest {
             compile("x");
             fail("Error expected");
         } catch (ParserException e) {
-            assertEquals("Error position", 0, e.getPosition());
+            assertEquals(0, e.getPosition(), "Error position");
         }
         try {
             compile("x()");
             fail("Error expected");
         } catch (ParserException e) {
-            assertEquals("Error position", 0, e.getPosition());
+            assertEquals(0, e.getPosition(), "Error position");
         }
         try {
             compile("(");
@@ -104,19 +103,19 @@ public class ExpressionTest {
             compile("atan2(1)");
             fail("Error expected");
         } catch (ParserException e) {
-            assertEquals("Error position", 0, e.getPosition());
+            assertEquals(0, e.getPosition(), "Error position");
         }
         try {
             compile("atan2(1, 2, 3)");
             fail("Error expected");
         } catch (ParserException e) {
-            assertEquals("Error position", 0, e.getPosition());
+            assertEquals(0, e.getPosition(), "Error position");
         }
         try {
             compile("rotate(1, 2, 3)");
             fail("Error expected");
         } catch (ParserException e) {
-            assertEquals("Error position", 0, e.getPosition());
+            assertEquals(0, e.getPosition(), "Error position");
         }
     }
 

worldedit-core/src/test/java/com/sk89q/worldedit/util/LocationTest.java

@@ -19,12 +19,12 @@
 
 package com.sk89q.worldedit.util;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.Mockito.mock;
-
 import com.sk89q.worldedit.math.Vector3;
 import com.sk89q.worldedit.world.World;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.mock;
 
 /**
  * Tests {@link Location}.

worldedit-core/src/test/java/com/sk89q/worldedit/util/eventbus/EventBusTest.java

@@ -19,14 +19,14 @@
 
 package com.sk89q.worldedit.util.eventbus;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.ArrayList;
 import java.util.List;
 
 import static java.util.Arrays.asList;
 import static java.util.Collections.singletonList;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class EventBusTest {