Add integration test example using spring-boot-testjars

See https://github.com/spring-projects-experimental/spring-boot-testjars

Issue spring-projectsgh-258

Author: jgrandja

samples/demo-client/samples-demo-client.gradle

@@ -29,4 +29,14 @@ dependencies {
 	implementation "org.webjars:bootstrap:5.2.3"
 	implementation "org.webjars:popper.js:2.9.3"
 	implementation "org.webjars:jquery:3.6.4"
+
+	testImplementation "org.springframework.boot:spring-boot-starter-test"
+	testImplementation "org.springframework.boot:spring-boot-starter-oauth2-authorization-server"
+	testImplementation("org.springframework.experimental.boot:spring-boot-testjars:0.0.1") {
+		capabilities {
+			requireCapability("org.springframework.experimental.boot:spring-boot-testjars-maven")
+		}
+	}
+	testImplementation "org.springframework.boot:spring-boot-testcontainers"
+	testImplementation "org.apache.commons:commons-exec:1.3"
 }

samples/demo-client/src/test/java/sample/AuthorizationServerContainerConfig.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2020-2024 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 sample;
+
+import testjars.authorizationserver.TestAuthorizationServerApplication;
+
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.experimental.boot.server.exec.CommonsExecWebServerFactoryBean;
+import org.springframework.experimental.boot.server.exec.MavenClasspathEntry;
+import org.springframework.experimental.boot.test.context.EnableDynamicProperty;
+import org.springframework.experimental.boot.test.context.OAuth2ClientProviderIssuerUri;
+
+@EnableDynamicProperty
+@TestConfiguration(proxyBeanMethods = false)
+public class AuthorizationServerContainerConfig {
+
+	@Bean
+	@OAuth2ClientProviderIssuerUri
+	public CommonsExecWebServerFactoryBean authorizationServer() {
+		// @formatter:off
+		return CommonsExecWebServerFactoryBean.builder()
+			.mainClass(TestAuthorizationServerApplication.class.getName())
+			.classpath((classpath) -> classpath
+				.entries(MavenClasspathEntry.springBootStarter("oauth2-authorization-server"))
+				.recursive(TestAuthorizationServerApplication.class)
+			);
+		// @formatter:on
+	}
+
+}

samples/demo-client/src/test/java/sample/AuthorizationServerIntegrationTests.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2020-2024 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 sample;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.oauth2.core.AuthorizationGrantType;
+import org.springframework.security.oauth2.core.endpoint.OAuth2AccessTokenResponse;
+import org.springframework.security.oauth2.core.endpoint.OAuth2ParameterNames;
+import org.springframework.security.oauth2.core.http.converter.OAuth2AccessTokenResponseHttpMessageConverter;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestClient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Integration tests against a Spring Authorization Server using spring-boot-testjars.
+ *
+ * @see <a target="_blank" href="https://github.com/spring-projects-experimental/spring-boot-testjars">spring-boot-testjars</a>
+ */
+@SpringBootTest(classes = AuthorizationServerContainerConfig.class)
+public class AuthorizationServerIntegrationTests {
+
+	@Value("${spring.security.oauth2.client.provider.spring.issuer-uri}")
+	private String issuerUri;
+
+	// @formatter:off
+	private final RestClient restClient  = RestClient.builder()
+			.messageConverters(converters ->
+					converters.add(0, new OAuth2AccessTokenResponseHttpMessageConverter()))
+			.build();
+	// @formatter:on
+
+	@Test
+	public void requestWhenTokenRequestClientCredentialsGrantThenTokenResponse() {
+		MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
+		params.add(OAuth2ParameterNames.GRANT_TYPE, AuthorizationGrantType.CLIENT_CREDENTIALS.getValue());
+		params.add(OAuth2ParameterNames.SCOPE, "scope-1");
+
+		// @formatter:off
+		ResponseEntity<OAuth2AccessTokenResponse> tokenResponse = this.restClient.post()
+				.uri(this.issuerUri + "/oauth2/token")
+				.body(params)
+				.headers((headers) -> headers.setBasicAuth("client-1", "secret"))
+				.retrieve()
+				.toEntity(OAuth2AccessTokenResponse.class);
+		// @formatter:on
+
+		assertThat(tokenResponse.getStatusCode()).isEqualTo(HttpStatus.OK);
+		assertThat(tokenResponse.getBody().getAccessToken()).isNotNull();
+	}
+
+}

samples/demo-client/src/test/java/testjars/authorizationserver/AuthorizationServerConfig.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2020-2024 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 testjars.authorizationserver;
+
+import java.util.UUID;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.oauth2.core.AuthorizationGrantType;
+import org.springframework.security.oauth2.core.ClientAuthenticationMethod;
+import org.springframework.security.oauth2.server.authorization.client.InMemoryRegisteredClientRepository;
+import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
+import org.springframework.security.oauth2.server.authorization.client.RegisteredClientRepository;
+
+@EnableWebSecurity
+@Configuration(proxyBeanMethods = false)
+public class AuthorizationServerConfig {
+
+	@Bean
+	public RegisteredClientRepository registeredClientRepository() {
+		RegisteredClient registeredClient = RegisteredClient.withId(UUID.randomUUID().toString())
+				.clientId("client-1")
+				.clientSecret("{noop}secret")
+				.clientAuthenticationMethod(ClientAuthenticationMethod.CLIENT_SECRET_BASIC)
+				.authorizationGrantType(AuthorizationGrantType.CLIENT_CREDENTIALS)
+				.scope("scope-1")
+				.build();
+
+		return new InMemoryRegisteredClientRepository(registeredClient);
+	}
+
+}

samples/demo-client/src/test/java/testjars/authorizationserver/TestAuthorizationServerApplication.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2020-2024 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 testjars.authorizationserver;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class TestAuthorizationServerApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(TestAuthorizationServerApplication.class, args);
+	}
+
+}