Migrate docs to Antora

Issue gh-1295

docs/src/test/java/sample/extgrant/CustomCodeGrantTests.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2020-2023 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.extgrant;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import sample.test.SpringTestContext;
+import sample.test.SpringTestContextExtension;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.http.HttpHeaders;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.oauth2.core.endpoint.OAuth2ParameterNames;
+import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
+import org.springframework.security.oauth2.server.authorization.client.RegisteredClientRepository;
+import org.springframework.test.web.servlet.MockMvc;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@ExtendWith(SpringTestContextExtension.class)
+public class CustomCodeGrantTests {
+
+	public final SpringTestContext spring = new SpringTestContext(this);
+
+	@Autowired
+	private RegisteredClientRepository registeredClientRepository;
+
+	@Autowired
+	private MockMvc mvc;
+
+	@Test
+	public void requestWhenTokenRequestValidThenTokenResponse() throws Exception {
+		this.spring.register(AuthorizationServerConfig.class).autowire();
+
+		RegisteredClient registeredClient = this.registeredClientRepository.findByClientId("messaging-client");
+
+		HttpHeaders headers = new HttpHeaders();
+		headers.setBasicAuth(registeredClient.getClientId(),
+				registeredClient.getClientSecret().replace("{noop}", ""));
+
+		// @formatter:off
+		this.mvc.perform(post("/oauth2/token")
+				.param(OAuth2ParameterNames.GRANT_TYPE, "urn:ietf:params:oauth:grant-type:custom_code")
+				.param(OAuth2ParameterNames.CODE, "7QR49T1W3")
+				.headers(headers))
+				.andExpect(status().isOk())
+				.andExpect(jsonPath("$.access_token").isNotEmpty());
+		// @formatter:on
+	}
+
+	@EnableWebSecurity
+	@EnableAutoConfiguration
+	@ComponentScan
+	static class AuthorizationServerConfig {
+	}
+
+}