Update sample with placeholders for oauth client

Author: mbhave

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/client/OAuth2ClientPropertiesRegistrationAdapterTests.java

@@ -110,7 +110,7 @@ public void getClientRegistrationsWhenUsingCommonProviderShouldAdapt()
 		assertThat(adapted.getAuthorizationGrantType()).isEqualTo(
 				org.springframework.security.oauth2.core.AuthorizationGrantType.AUTHORIZATION_CODE);
 		assertThat(adapted.getRedirectUri()).isEqualTo(
-				"{scheme}://{serverName}:{serverPort}{contextPath}/oauth2/authorize/code/{clientAlias}");
+				"{scheme}://{serverName}:{serverPort}{contextPath}/oauth2/authorize/code/{registrationId}");
 		assertThat(adapted.getScope()).containsExactly("openid", "profile", "email",
 				"address", "phone");
 		assertThat(adapted.getClientName()).isEqualTo("Google");

spring-boot-samples/spring-boot-sample-oauth2-client/src/main/resources/application.yml

@@ -4,15 +4,15 @@ spring:
       client:
         registration:
           github-client-1:
-            client-id: 1b4c6c2d23a2dbec8959
-            client-secret: 8bdb4047d98f37e1c6aeba9ffd2017bc31682e1b
+            client-id: ${APP-CLIENT-ID}
+            client-secret: ${APP-CLIENT-SECRET}
             client-name: Github user
             provider: github
             scope: user
             redirect_uri: http://localhost:8080/oauth2/authorize/code/github
           github-client-2:
-            client-id: 1b4c6c2d23a2dbec8959
-            client-secret: 8bdb4047d98f37e1c6aeba9ffd2017bc31682e1b
+            client-id: ${APP-CLIENT-ID}
+            client-secret: ${APP-CLIENT-SECRET}
             client-name: Github email
             provider: github
             scope: user:email

spring-boot-samples/spring-boot-sample-oauth2-client/src/test/main/java/sample/oauth2/client/SampleOAuth2ClientApplicationTests.java

@@ -22,7 +22,8 @@
  * @author Madhura Bhave
  */
 @RunWith(SpringRunner.class)
-@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, properties = {
+		"APP-CLIENT-ID=my-client-id", "APP-CLIENT-SECRET=my-client-secret" })
 @DirtiesContext
 public class SampleOAuth2ClientApplicationTests {