Support auto configuration on meta-annotations (#1563)

With this change, the stubbing of WireMock will be reset even if only a
meta-annotation is annotated with `@AutoConfigureWireMock`.

Fixes gh-1204

spring-cloud-contract-wiremock/src/main/java/org/springframework/cloud/contract/wiremock/WireMockTestExecutionListener.java

@@ -20,6 +20,7 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
 import org.springframework.context.ApplicationContext;
+import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.TestContext;
 import org.springframework.test.context.support.AbstractTestExecutionListener;
@@ -30,6 +31,7 @@ import org.springframework.test.context.support.AbstractTestExecutionListener;
  * @author Marcin Grzejszczak
  * @author Matt Garner
  * @author Waldemar Panas
+ * @author Fabian Winter
  * @since 1.2.6
  */
 public final class WireMockTestExecutionListener extends AbstractTestExecutionListener {
@@ -91,7 +93,7 @@ public final class WireMockTestExecutionListener extends AbstractTestExecutionLi
 	}
 
 	private boolean annotationMissing(TestContext testContext) {
-		if (testContext.getTestClass().getAnnotationsByType(AutoConfigureWireMock.class).length == 0) {
+		if (AnnotationUtils.findAnnotation(testContext.getTestClass(), AutoConfigureWireMock.class) == null) {
 			if (log.isDebugEnabled()) {
 				log.debug(
 						"No @AutoConfigureWireMock annotation found on [" + testContext.getTestClass() + "]. Skipping");

spring-cloud-contract-wiremock/src/test/java/org/springframework/cloud/contract/wiremock/MetaAnnotationWithResetAfterEachTestApplicationTests.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright 2013-2020 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.contract.wiremock;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import com.github.tomakehurst.wiremock.WireMockServer;
+import com.github.tomakehurst.wiremock.client.WireMock;
+import org.junit.FixMethodOrder;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.web.client.RestTemplate;
+
+import static org.assertj.core.api.BDDAssertions.then;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = WiremockTestsApplication.class, properties = {
+		"app.baseUrl=http://localhost:${wiremock.server.port}", "wiremock.reset-mappings-after-each-test=true" },
+		webEnvironment = WebEnvironment.NONE)
+@ComponentTestAnnotation
+@FixMethodOrder
+@DirtiesContext
+public class MetaAnnotationWithResetAfterEachTestApplicationTests {
+
+	@Autowired
+	private WireMockServer wireMockServer;
+
+	@Value("localhost:${wiremock.server.port}")
+	private String hostname;
+
+	@Test
+	public void _01_test() throws Exception {
+		this.wireMockServer
+				.givenThat(WireMock.get("/should_register_mapping").willReturn(WireMock.aResponse().withBody("bar")));
+
+		String result = new RestTemplate().getForObject("http://" + this.hostname + "/should_register_mapping",
+				String.class);
+
+		then(result).isEqualTo("bar");
+	}
+
+	@Test
+	public void _02_test() throws Exception {
+		String result = new RestTemplate().getForObject("http://" + this.hostname + "/should_register_mapping",
+				String.class);
+
+		// taken from test/resources/mappings/resource-without-content-type.json
+		then(result).isEqualTo("Hello World");
+	}
+
+	@Test
+	public void _03_test() throws Exception {
+		WireMock.givenThat(WireMock.get("/should_register_mapping").willReturn(WireMock.aResponse().withBody("bar")));
+
+		String result = new RestTemplate().getForObject("http://" + this.hostname + "/should_register_mapping",
+				String.class);
+
+		then(result).isEqualTo("bar");
+	}
+
+	@Test
+	public void _04_test() throws Exception {
+		String result = new RestTemplate().getForObject("http://" + this.hostname + "/should_register_mapping",
+				String.class);
+
+		// taken from test/resources/mappings/resource-without-content-type.json
+		then(result).isEqualTo("Hello World");
+	}
+
+}
+
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Inherited
+@SpringBootTest
+@AutoConfigureWireMock(port = 0)
+@interface ComponentTestAnnotation {
+
+}