Improve AnnotationProcessorPerformanceTests with Awaitility

spring-context/src/test/java/org/springframework/context/annotation/AnnotationProcessorPerformanceTests.java

@@ -16,10 +16,14 @@
 
 package org.springframework.context.annotation;
 
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
 import javax.annotation.Resource;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.awaitility.Awaitility;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
@@ -32,19 +36,20 @@ import org.springframework.tests.Assume;
 import org.springframework.tests.TestGroup;
 import org.springframework.tests.sample.beans.ITestBean;
 import org.springframework.tests.sample.beans.TestBean;
-import org.springframework.util.StopWatch;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
  * @author Juergen Hoeller
  * @author Chris Beams
+ * @author Sam Brannen
  * @since 2.5
  */
 public class AnnotationProcessorPerformanceTests {
 
 	private static final Log factoryLog = LogFactory.getLog(DefaultListableBeanFactory.class);
 
+
 	@BeforeClass
 	public static void commonAssumptions() {
 		Assume.group(TestGroup.PERFORMANCE);
@@ -52,89 +57,79 @@ public class AnnotationProcessorPerformanceTests {
 	}
 
 	@Test
-	public void testPrototypeCreationWithResourcePropertiesIsFastEnough() {
-		GenericApplicationContext ctx = new GenericApplicationContext();
-		AnnotationConfigUtils.registerAnnotationConfigProcessors(ctx);
-		ctx.refresh();
+	public void prototypeCreationWithResourcePropertiesIsFastEnough() {
+		GenericApplicationContext ctx = createContext();
 
 		RootBeanDefinition rbd = new RootBeanDefinition(ResourceAnnotatedTestBean.class);
 		rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
 		ctx.registerBeanDefinition("test", rbd);
 		ctx.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
-		TestBean spouse = (TestBean) ctx.getBean("spouse");
-		StopWatch sw = new StopWatch();
-		sw.start("prototype");
-		for (int i = 0; i < 100000; i++) {
-			TestBean tb = (TestBean) ctx.getBean("test");
-			assertThat(tb.getSpouse()).isSameAs(spouse);
-		}
-		sw.stop();
-		assertThat(sw.getTotalTimeMillis() < 4000).as("Prototype creation took too long: " + sw.getTotalTimeMillis()).isTrue();
+
+		assertFastEnough(ctx);
 	}
 
 	@Test
-	public void testPrototypeCreationWithOverriddenResourcePropertiesIsFastEnough() {
-		GenericApplicationContext ctx = new GenericApplicationContext();
-		AnnotationConfigUtils.registerAnnotationConfigProcessors(ctx);
-		ctx.refresh();
+	public void prototypeCreationWithOverriddenResourcePropertiesIsFastEnough() {
+		GenericApplicationContext ctx = createContext();
 
 		RootBeanDefinition rbd = new RootBeanDefinition(ResourceAnnotatedTestBean.class);
 		rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
 		rbd.getPropertyValues().add("spouse", new RuntimeBeanReference("spouse"));
 		ctx.registerBeanDefinition("test", rbd);
 		ctx.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
-		TestBean spouse = (TestBean) ctx.getBean("spouse");
-		StopWatch sw = new StopWatch();
-		sw.start("prototype");
-		for (int i = 0; i < 100000; i++) {
-			TestBean tb = (TestBean) ctx.getBean("test");
-			assertThat(tb.getSpouse()).isSameAs(spouse);
-		}
-		sw.stop();
-		assertThat(sw.getTotalTimeMillis() < 4000).as("Prototype creation took too long: " + sw.getTotalTimeMillis()).isTrue();
+
+		assertFastEnough(ctx);
 	}
 
 	@Test
-	public void testPrototypeCreationWithAutowiredPropertiesIsFastEnough() {
-		GenericApplicationContext ctx = new GenericApplicationContext();
-		AnnotationConfigUtils.registerAnnotationConfigProcessors(ctx);
-		ctx.refresh();
+	public void prototypeCreationWithAutowiredPropertiesIsFastEnough() {
+		GenericApplicationContext ctx = createContext();
 
 		RootBeanDefinition rbd = new RootBeanDefinition(AutowiredAnnotatedTestBean.class);
 		rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
 		ctx.registerBeanDefinition("test", rbd);
 		ctx.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
-		TestBean spouse = (TestBean) ctx.getBean("spouse");
-		StopWatch sw = new StopWatch();
-		sw.start("prototype");
-		for (int i = 0; i < 100000; i++) {
-			TestBean tb = (TestBean) ctx.getBean("test");
-			assertThat(tb.getSpouse()).isSameAs(spouse);
-		}
-		sw.stop();
-		assertThat(sw.getTotalTimeMillis() < 4000).as("Prototype creation took too long: " + sw.getTotalTimeMillis()).isTrue();
+
+		assertFastEnough(ctx);
 	}
 
 	@Test
-	public void testPrototypeCreationWithOverriddenAutowiredPropertiesIsFastEnough() {
-		GenericApplicationContext ctx = new GenericApplicationContext();
-		AnnotationConfigUtils.registerAnnotationConfigProcessors(ctx);
-		ctx.refresh();
+	public void prototypeCreationWithOverriddenAutowiredPropertiesIsFastEnough() {
+		GenericApplicationContext ctx = createContext();
 
 		RootBeanDefinition rbd = new RootBeanDefinition(AutowiredAnnotatedTestBean.class);
 		rbd.setScope(RootBeanDefinition.SCOPE_PROTOTYPE);
 		rbd.getPropertyValues().add("spouse", new RuntimeBeanReference("spouse"));
 		ctx.registerBeanDefinition("test", rbd);
 		ctx.registerBeanDefinition("spouse", new RootBeanDefinition(TestBean.class));
-		TestBean spouse = (TestBean) ctx.getBean("spouse");
-		StopWatch sw = new StopWatch();
-		sw.start("prototype");
-		for (int i = 0; i < 100000; i++) {
-			TestBean tb = (TestBean) ctx.getBean("test");
+
+		assertFastEnough(ctx);
+	}
+
+	private GenericApplicationContext createContext() {
+		GenericApplicationContext ctx = new GenericApplicationContext();
+		AnnotationConfigUtils.registerAnnotationConfigProcessors(ctx);
+		ctx.refresh();
+		return ctx;
+	}
+
+	private void assertFastEnough(GenericApplicationContext ctx) {
+		AtomicBoolean done = new AtomicBoolean();
+		TestBean spouse = ctx.getBean("spouse", TestBean.class);
+		Executors.newSingleThreadExecutor().submit(() -> {
+			for (int i = 0; i < 100_000; i++) {
+				TestBean tb = ctx.getBean("test", TestBean.class);
 				assertThat(tb.getSpouse()).isSameAs(spouse);
 			}
-		sw.stop();
-		assertThat(sw.getTotalTimeMillis() < 6000).as("Prototype creation took too long: " + sw.getTotalTimeMillis()).isTrue();
+			done.set(true);
+		});
+
+		// "fast enough" is of course relative, but we're using 6 seconds with the hope
+		// that these tests typically pass on the CI server.
+		Awaitility.await()
+			.atMost(6, TimeUnit.SECONDS)
+			.pollInterval(100, TimeUnit.MILLISECONDS)
+			.untilTrue(done);
 	}