Change context creation to once per class

gselzer · gselzer · commit 5cf443e77d97 · 2019-11-14T17:16:29.000-06:00
We noticed that the time gained from not having to create a Context in
every test greatly offset the time lost by now having multiple tests
share the same context.
diff --git a/src/test/java/org/scijava/ops/AbstractTestEnvironment.java b/src/test/java/org/scijava/ops/AbstractTestEnvironment.java
@@ -2,23 +2,23 @@
 
 import java.util.Arrays;
 
-import org.junit.After;
-import org.junit.Before;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
 import org.scijava.Context;
 
 public abstract class AbstractTestEnvironment {
 
-	protected Context context;
-	protected OpService ops;
+	protected static Context context;
+	protected static OpService ops;
 
-	@Before
-	public void setUp() {
+	@BeforeClass
+	public static void setUp() {
 		context = new Context(OpService.class);
 		ops = context.service(OpService.class);
 	}
 
-	@After
-	public void tearDown() {
+	@AfterClass
+	public static void tearDown() {
 		context.dispose();
 		context = null;
 		ops = null;
