Excavator: Switch to JUnit 5 to parallelize tests and speed up CI

javapoet/src/test/java/ClassNameNoPackageTest.java

@@ -17,7 +17,7 @@
 import static org.assertj.core.api.Assertions.assertThat;
 
 import com.palantir.javapoet.ClassName;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Since it is impossible to import classes from the default package into other

javapoet/src/test/java/com/palantir/javapoet/AbstractTypesTest.java

@@ -42,7 +42,7 @@
 import javax.lang.model.util.Elements;
 import javax.lang.model.util.Types;
 import javax.tools.JavaFileObject;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public abstract class AbstractTypesTest {
     protected abstract Elements getElements();

javapoet/src/test/java/com/palantir/javapoet/AnnotatedTypeNameTest.java

@@ -21,7 +21,8 @@
 import java.lang.annotation.Target;
 import java.util.List;
 import java.util.Map;
-import org.junit.Test;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
 
 public class AnnotatedTypeNameTest {
 
@@ -38,14 +39,18 @@ public class AnnotatedTypeNameTest {
     @Target(ElementType.TYPE_USE)
     public @interface TypeUseAnnotation {}
 
-    @Test(expected = NullPointerException.class)
+    @Test
     public void nullAnnotationArray() {
-        TypeName.BOOLEAN.annotated((AnnotationSpec[]) null);
+        Assertions.assertThrows(NullPointerException.class, () -> {
+            TypeName.BOOLEAN.annotated((AnnotationSpec[]) null);
+        });
     }
 
-    @Test(expected = NullPointerException.class)
+    @Test
     public void nullAnnotationList() {
-        TypeName.DOUBLE.annotated((List<AnnotationSpec>) null);
+        Assertions.assertThrows(NullPointerException.class, () -> {
+            TypeName.DOUBLE.annotated((List<AnnotationSpec>) null);
+        });
     }
 
     @Test

javapoet/src/test/java/com/palantir/javapoet/AnnotationSpecTest.java

@@ -25,7 +25,7 @@
 import java.lang.annotation.RetentionPolicy;
 import javax.lang.model.element.TypeElement;
 import org.junit.Rule;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings("ClassCanBeStatic")
 public final class AnnotationSpecTest {

javapoet/src/test/java/com/palantir/javapoet/CodeBlockTest.java

@@ -22,7 +22,7 @@
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public final class CodeBlockTest {
     @Test

javapoet/src/test/java/com/palantir/javapoet/CodeWriterTest.java

@@ -18,7 +18,7 @@
 import static org.assertj.core.api.Assertions.assertThat;
 
 import java.io.IOException;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class CodeWriterTest {
 

javapoet/src/test/java/com/palantir/javapoet/FieldSpecTest.java

@@ -19,7 +19,7 @@
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 import javax.lang.model.element.Modifier;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class FieldSpecTest {
     @Test

javapoet/src/test/java/com/palantir/javapoet/FileReadingTest.java

@@ -19,6 +19,7 @@
 
 import com.google.common.collect.Iterables;
 import com.google.common.io.ByteStreams;
+import java.io.File;
 import java.io.IOException;
 import java.net.URI;
 import java.nio.charset.StandardCharsets;
@@ -35,18 +36,17 @@
 import javax.tools.StandardJavaFileManager;
 import javax.tools.StandardLocation;
 import javax.tools.ToolProvider;
-import org.junit.Rule;
 import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.io.TempDir;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 
 @RunWith(JUnit4.class)
 public class FileReadingTest {
 
     // Used for storing compilation output.
-    @Rule
-    public final TemporaryFolder temporaryFolder = new TemporaryFolder();
+    @TempDir
+    public File temporaryFolder;
 
     @Test
     public void javaFileObjectUri() {

javapoet/src/test/java/com/palantir/javapoet/FileWritingTest.java

@@ -28,18 +28,17 @@
 import java.util.Date;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.Modifier;
-import org.junit.Rule;
 import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.io.TempDir;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 import org.mockito.Mockito;
 
 @RunWith(JUnit4.class)
 public final class FileWritingTest {
     // Used for testing java.io File behavior.
-    @Rule
-    public final TemporaryFolder tmp = new TemporaryFolder();
+    @TempDir
+    public File tmp;
 
     // Used for testing java.nio.file Path behavior.
     private final FileSystem fs = Jimfs.newFileSystem(Configuration.unix());

javapoet/src/test/java/com/palantir/javapoet/MethodSpecTest.java

@@ -43,9 +43,9 @@
 import javax.lang.model.util.Elements;
 import javax.lang.model.util.Types;
 import javax.tools.JavaFileObject;
-import org.junit.Before;
 import org.junit.Rule;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings({"ClassCanBeStatic", "TypeParameterUnusedInFormals", "StrictUnusedVariable", "UnusedMethod"})
 public final class MethodSpecTest {
@@ -55,7 +55,7 @@ public final class MethodSpecTest {
     private Elements elements;
     private Types types;
 
-    @Before
+    @BeforeEach
     public void before() {
         elements = compilation.getElements();
         types = compilation.getTypes();

javapoet/src/test/java/com/palantir/javapoet/NameAllocatorTest.java

@@ -18,7 +18,7 @@
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public final class NameAllocatorTest {
 

javapoet/src/test/java/com/palantir/javapoet/ParameterSpecTest.java

@@ -30,9 +30,9 @@
 import javax.lang.model.element.TypeElement;
 import javax.lang.model.element.VariableElement;
 import javax.lang.model.util.Elements;
-import org.junit.Before;
 import org.junit.Rule;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings({"ClassCanBeStatic", "StrictUnusedVariable"})
 public class ParameterSpecTest {
@@ -41,7 +41,7 @@ public class ParameterSpecTest {
 
     private Elements elements;
 
-    @Before
+    @BeforeEach
     public void before() {
         elements = compilation.getElements();
     }

javapoet/src/test/java/com/palantir/javapoet/TypeNameTest.java

@@ -23,7 +23,7 @@
 import java.util.List;
 import java.util.Set;
 import java.util.UUID;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings("ClassCanBeStatic")
 public class TypeNameTest {

javapoet/src/test/java/com/palantir/javapoet/UtilTest.java

@@ -17,7 +17,7 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class UtilTest {
     @Test