Update WebMvcTest to auto-configure supported template engines

Closes gh-5801

spring-boot-parent/src/checkstyle/checkstyle.xml

@@ -71,7 +71,7 @@
 		<module name="AvoidStarImport" />
 		<module name="AvoidStaticImport">
 			<property name="excludes"
-				value="org.assertj.core.api.Assertions.*, org.junit.Assert.*, org.junit.Assume.*, org.junit.internal.matchers.ThrowableMessageMatcher.*, org.hamcrest.CoreMatchers.*, org.hamcrest.Matchers.*, org.springframework.boot.configurationprocessor.ConfigurationMetadataMatchers.*, org.springframework.boot.configurationprocessor.TestCompiler.*, org.mockito.Mockito.*, org.mockito.BDDMockito.*, org.mockito.Matchers.*, org.springframework.restdocs.mockmvc.MockMvcRestDocumentation.*, org.springframework.restdocs.hypermedia.HypermediaDocumentation.*, org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*, org.springframework.test.web.servlet.result.MockMvcResultMatchers.*, org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.*, org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.*, org.springframework.hateoas.mvc.ControllerLinkBuilder.linkTo" />
+				value="org.assertj.core.api.Assertions.*, org.junit.Assert.*, org.junit.Assume.*, org.junit.internal.matchers.ThrowableMessageMatcher.*, org.hamcrest.CoreMatchers.*, org.hamcrest.Matchers.*, org.springframework.boot.configurationprocessor.ConfigurationMetadataMatchers.*, org.springframework.boot.configurationprocessor.TestCompiler.*, org.springframework.boot.test.autoconfigure.AutoConfigurationImportedCondition.*, org.mockito.Mockito.*, org.mockito.BDDMockito.*, org.mockito.Matchers.*, org.springframework.restdocs.mockmvc.MockMvcRestDocumentation.*, org.springframework.restdocs.hypermedia.HypermediaDocumentation.*, org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*, org.springframework.test.web.servlet.result.MockMvcResultMatchers.*, org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.*, org.springframework.security.test.web.servlet.setup.SecurityMockMvcConfigurers.*, org.springframework.hateoas.mvc.ControllerLinkBuilder.linkTo" />
 		</module>
 		<module name="IllegalImport" />
 		<module name="RedundantImport" />

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/web/servlet/AutoConfigureWebMvc.java

@@ -23,8 +23,12 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.autoconfigure.freemarker.FreeMarkerAutoConfiguration;
+import org.springframework.boot.autoconfigure.groovy.template.GroovyTemplateAutoConfiguration;
 import org.springframework.boot.autoconfigure.gson.GsonAutoConfiguration;
 import org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration;
+import org.springframework.boot.autoconfigure.mustache.MustacheAutoConfiguration;
+import org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.HttpMessageConvertersAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration;
 
@@ -34,6 +38,7 @@ import org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration;
  * using this annotation directly.
  *
  * @author Phillip Webb
+ * @author Andy Wilkinson
  * @since 1.4.0
  * @see WebMvcTest
  */
@@ -41,7 +46,9 @@ import org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration;
 @Retention(RetentionPolicy.RUNTIME)
 @Documented
 @ImportAutoConfiguration({ WebMvcAutoConfiguration.class, GsonAutoConfiguration.class,
-		JacksonAutoConfiguration.class, HttpMessageConvertersAutoConfiguration.class })
+		JacksonAutoConfiguration.class, HttpMessageConvertersAutoConfiguration.class,
+		FreeMarkerAutoConfiguration.class, GroovyTemplateAutoConfiguration.class,
+		MustacheAutoConfiguration.class, ThymeleafAutoConfiguration.class })
 public @interface AutoConfigureWebMvc {
 
 }

spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/AutoConfigurationImportedCondition.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure;
+
+import org.assertj.core.api.Condition;
+import org.assertj.core.description.TextDescription;
+
+import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
+import org.springframework.boot.autoconfigure.condition.ConditionEvaluationReport;
+import org.springframework.context.ApplicationContext;
+
+/**
+ * AssertJ {@link Condition} that checks that an auto-configuration has been imported.
+ *
+ * @author Andy Wilkinson
+ */
+public final class AutoConfigurationImportedCondition
+		extends Condition<ApplicationContext> {
+
+	private final Class<?> autoConfigurationClass;
+
+	private AutoConfigurationImportedCondition(Class<?> autoConfigurationClass) {
+		super(new TextDescription("%s imported", autoConfigurationClass.getName()));
+		this.autoConfigurationClass = autoConfigurationClass;
+	}
+
+	@Override
+	public boolean matches(ApplicationContext context) {
+		ConditionEvaluationReport report = ConditionEvaluationReport
+				.get((ConfigurableListableBeanFactory) context
+						.getAutowireCapableBeanFactory());
+		return report.getConditionAndOutcomesBySource().keySet()
+				.contains(this.autoConfigurationClass.getName());
+	}
+
+	/**
+	 * Returns a {@link Condition} that verifies that the given
+	 * {@code autoConfigurationClass} has been imported.
+	 * @param autoConfigurationClass the auto-configuration class
+	 * @return the condition
+	 */
+	public static AutoConfigurationImportedCondition importedAutoConfiguration(
+			Class<?> autoConfigurationClass) {
+		return new AutoConfigurationImportedCondition(autoConfigurationClass);
+	}
+
+}

spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/orm/jpa/DataJpaTestIntegrationTests.java

@@ -25,14 +25,13 @@ import org.junit.runner.RunWith;
 
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
-import org.springframework.boot.autoconfigure.condition.ConditionEvaluationReport;
 import org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration;
 import org.springframework.boot.autoconfigure.liquibase.LiquibaseAutoConfiguration;
 import org.springframework.context.ApplicationContext;
 import org.springframework.test.context.junit4.SpringRunner;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.boot.test.autoconfigure.AutoConfigurationImportedCondition.importedAutoConfiguration;
 
 /**
  * Integration tests for {@link DataJpaTest}.
@@ -99,20 +98,14 @@ public class DataJpaTestIntegrationTests {
 
 	@Test
 	public void flywayAutoConfigurationWasImported() {
-		ConditionEvaluationReport report = ConditionEvaluationReport
-				.get((ConfigurableListableBeanFactory) this.applicationContext
-						.getAutowireCapableBeanFactory());
-		assertThat(report.getConditionAndOutcomesBySource().keySet())
-				.contains(FlywayAutoConfiguration.class.getName());
+		assertThat(this.applicationContext)
+				.has(importedAutoConfiguration(FlywayAutoConfiguration.class));
 	}
 
 	@Test
 	public void liquibaseAutoConfigurationWasImported() {
-		ConditionEvaluationReport report = ConditionEvaluationReport
-				.get((ConfigurableListableBeanFactory) this.applicationContext
-						.getAutowireCapableBeanFactory());
-		assertThat(report.getConditionAndOutcomesBySource().keySet())
-				.contains(LiquibaseAutoConfiguration.class.getName());
+		assertThat(this.applicationContext)
+				.has(importedAutoConfiguration(LiquibaseAutoConfiguration.class));
 	}
 
 }

spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/servlet/WebMvcTestAutoConfigurationIntegrationTests.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure.web.servlet;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.freemarker.FreeMarkerAutoConfiguration;
+import org.springframework.boot.autoconfigure.groovy.template.GroovyTemplateAutoConfiguration;
+import org.springframework.boot.autoconfigure.mustache.MustacheAutoConfiguration;
+import org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfiguration;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.boot.test.autoconfigure.AutoConfigurationImportedCondition.importedAutoConfiguration;
+
+/**
+ * Tests for the auto-configuration imported by {@link WebMvcTest}.
+ *
+ * @author Andy Wilkinson
+ */
+@RunWith(SpringRunner.class)
+@WebMvcTest
+public class WebMvcTestAutoConfigurationIntegrationTests {
+
+	@Autowired
+	private ApplicationContext applicationContext;
+
+	@Test
+	public void freemarkerAutoConfigurationWasImported() {
+		assertThat(this.applicationContext)
+				.has(importedAutoConfiguration(FreeMarkerAutoConfiguration.class));
+	}
+
+	@Test
+	public void groovyTemplatesAutoConfigurationWasImported() {
+		assertThat(this.applicationContext)
+				.has(importedAutoConfiguration(GroovyTemplateAutoConfiguration.class));
+	}
+
+	@Test
+	public void mustacheAutoConfigurationWasImported() {
+		assertThat(this.applicationContext)
+				.has(importedAutoConfiguration(MustacheAutoConfiguration.class));
+	}
+
+	@Test
+	public void thymeleafAutoConfigurationWasImported() {
+		assertThat(this.applicationContext)
+				.has(importedAutoConfiguration(ThymeleafAutoConfiguration.class));
+	}
+
+}