From bee02810f696477adaa92d23c7fab5058abf15f1 Mon Sep 17 00:00:00 2001
From: Michael Wirth <michael.wirth@mimacom.com>
Date: Mon, 1 Apr 2019 21:03:41 +0200
Subject: [PATCH] #971 - Only expand templated links with Traverson when
 requested.

---
 .../springframework/hateoas/client/Server.java  |  6 ++++++
 .../hateoas/client/TraversonTest.java           | 17 +++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/src/test/java/org/springframework/hateoas/client/Server.java b/src/test/java/org/springframework/hateoas/client/Server.java
index 2b788a93..bde0961e 100644
--- a/src/test/java/org/springframework/hateoas/client/Server.java
+++ b/src/test/java/org/springframework/hateoas/client/Server.java
@@ -100,6 +100,12 @@ public class Server implements Closeable {
 				withBody("{ \"_links\" : { \"self\" : { \"href\" : \"/{?template}\" }}}"). //
 				withContentType(MediaTypes.HAL_JSON.toString());
 
+		onRequest(). //
+				havingPathEqualTo("/github-with-template"). //
+				respond(). //
+				withBody("{ \"foo_url_templated\" : \"" + rootResource() + "/github/{issue}\"}"). //
+				withContentType(MediaTypes.HAL_JSON.toString());
+
 		// Sample traversal of HAL docs based on Spring-a-Gram showcase
 		ResourceLoader resourceLoader = new DefaultResourceLoader();
 		org.springframework.core.io.Resource springagramRoot = resourceLoader
diff --git a/src/test/java/org/springframework/hateoas/client/TraversonTest.java b/src/test/java/org/springframework/hateoas/client/TraversonTest.java
index 98cd5fdf..ac25340a 100755
--- a/src/test/java/org/springframework/hateoas/client/TraversonTest.java
+++ b/src/test/java/org/springframework/hateoas/client/TraversonTest.java
@@ -247,6 +247,23 @@ public class TraversonTest {
 		assertThat(link.isTemplated()).isFalse();
 	}
 
+	@Test
+	public void returnsTemplatedRequiredLinkIfRequested() {
+
+		TraversalBuilder follow = new Traverson(URI.create(server.rootResource().concat("/github-with-template")), MediaTypes.HAL_JSON)
+				.follow("foo_url_templated");
+
+		Link link = follow.asTemplatedLink();
+
+		assertThat(link.isTemplated()).isTrue();
+		assertThat(link.getVariableNames()).contains("template");
+
+		link = follow.asLink();
+
+		assertThat(link.isTemplated()).isFalse();
+	}
+
+
 	/**
 	 * @see #258
 	 */