diff --git a/src/Relationship.php b/src/Relationship.php
index 087571f..35b0123 100644
--- a/src/Relationship.php
+++ b/src/Relationship.php
@@ -85,13 +85,6 @@ class Relationship implements RelationshipInterface {
   /**
    * {@inheritdoc}
    */
-  public function setValues(array $values = []) {
-    $this->values = $values;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function getTargetResourceConfig() {
     return $this->targetResourceConfig;
   }
diff --git a/src/RelationshipInterface.php b/src/RelationshipInterface.php
index 162c69c..80643e1 100644
--- a/src/RelationshipInterface.php
+++ b/src/RelationshipInterface.php
@@ -22,13 +22,6 @@ interface RelationshipInterface extends AccessibleInterface {
   public function getValues();
 
   /**
-   * Sets the values.
-   *
-   * @param array $values
-   */
-  public function setValues(array $values = []);
-
-  /**
    * Gets the targetResourceConfig.
    *
    * @return mixed
diff --git a/tests/src/Kernel/Normalizer/DocumentRootNormalizerTest.php b/tests/src/Kernel/Normalizer/DocumentRootNormalizerTest.php
index d0d9964..7b542bc 100644
--- a/tests/src/Kernel/Normalizer/DocumentRootNormalizerTest.php
+++ b/tests/src/Kernel/Normalizer/DocumentRootNormalizerTest.php
@@ -121,11 +121,11 @@ class DocumentRootNormalizerTest extends KernelTestBase {
     $query->get('include')->willReturn('uid');
     $query->getIterator()->willReturn(new \ArrayIterator());
     $request->query = $query->reveal();
-    $route = $this->prophesize(Route::class);
-    $route->getPath()->willReturn('/node/article/{node}');
-    $route->getRequirement('_entity_type')->willReturn('node');
-    $route->getRequirement('_bundle')->willReturn('article');
-    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route->reveal());
+    $route = new Route('/node/article/{node}', [], [
+      '_entity_type' => 'node',
+      '_bundle' => 'article',
+    ]);
+    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route);
     $document_wrapper = $this->prophesize(DocumentWrapper::class);
     $document_wrapper->getData()->willReturn($this->node);
     $resource_config = $this->prophesize(ResourceConfigInterface::CLASS);
@@ -134,7 +134,7 @@ class DocumentRootNormalizerTest extends KernelTestBase {
 
     // Make sure the route contains the entity type and bundle.
     $current_context = $this->container->get('jsonapi.current_context');
-    $current_context->setCurrentRoute($route->reveal());
+    $current_context->setCurrentRoute($route);
 
     $this->container->set('jsonapi.current_context', $current_context);
     $this->container->get('serializer');
@@ -189,11 +189,8 @@ class DocumentRootNormalizerTest extends KernelTestBase {
     $query->get('include')->willReturn('bundle-resource');
     $query->getIterator()->willReturn(new \ArrayIterator());
     $request->query = $query->reveal();
-    $route = $this->prophesize(Route::class);
-    $route->getPath()->willReturn('/node/{node}');
-    $route->getRequirement('_entity_type')->willReturn('node');
-    $route->getRequirement('_bundle')->willReturn(NULL);
-    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route->reveal());
+    $route = new Route('/node/{node}', [], ['_entity_type' => 'node']);
+    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route);
     $document_wrapper = $this->prophesize(DocumentWrapper::class);
     $document_wrapper->getData()->willReturn($this->node);
     $resource_config = $this->prophesize(ResourceConfigInterface::CLASS);
@@ -202,7 +199,7 @@ class DocumentRootNormalizerTest extends KernelTestBase {
 
     // Make sure the route contains the entity type.
     $current_context = $this->container->get('jsonapi.current_context');
-    $current_context->setCurrentRoute($route->reveal());
+    $current_context->setCurrentRoute($route);
 
     $this->container->set('jsonapi.current_context', $current_context);
     $this->container->get('serializer');
@@ -260,11 +257,11 @@ class DocumentRootNormalizerTest extends KernelTestBase {
     $query->get('include')->willReturn(NULL);
     $query->getIterator()->willReturn(new \ArrayIterator());
     $request->query = $query->reveal();
-    $route = $this->prophesize(Route::class);
-    $route->getPath()->willReturn('/node_type/node_type/{node_type}');
-    $route->getRequirement('_entity_type')->willReturn('node');
-    $route->getRequirement('_bundle')->willReturn('article');
-    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route->reveal());
+    $route = new Route('/node_type/node_type/{node_type}', [], [
+      '_entity_type' => 'node_type',
+      '_bundle' => 'node_type',
+    ]);
+    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route);
     $document_wrapper = $this->prophesize(DocumentWrapper::class);
     $document_wrapper->getData()->willReturn($this->nodeType);
     $resource_config = $this->prophesize(ResourceConfigInterface::CLASS);
@@ -273,7 +270,7 @@ class DocumentRootNormalizerTest extends KernelTestBase {
 
     // Make sure the route contains the entity type and bundle.
     $current_context = $this->container->get('jsonapi.current_context');
-    $current_context->setCurrentRoute($route->reveal());
+    $current_context->setCurrentRoute($route);
 
     $this->container->set('jsonapi.current_context', $current_context);
     $this->container->get('serializer');
@@ -303,11 +300,8 @@ class DocumentRootNormalizerTest extends KernelTestBase {
     $query->get('include')->willReturn('bundle-resource');
     $query->getIterator()->willReturn(new \ArrayIterator());
     $request->query = $query->reveal();
-    $route = $this->prophesize(Route::class);
-    $route->getPath()->willReturn('/node_type/{node_type}');
-    $route->getRequirement('_entity_type')->willReturn('node');
-    $route->getRequirement('_bundle')->willReturn(NULL);
-    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route->reveal());
+    $route = new Route('/node_type/{node_type}', [], ['_entity_type' => 'node']);
+    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route);
     $document_wrapper = $this->prophesize(DocumentWrapper::class);
     $document_wrapper->getData()->willReturn($this->nodeType);
     $resource_config = $this->prophesize(ResourceConfigInterface::CLASS);
@@ -316,7 +310,7 @@ class DocumentRootNormalizerTest extends KernelTestBase {
 
     // Make sure the route contains the entity type and bundle.
     $current_context = $this->container->get('jsonapi.current_context');
-    $current_context->setCurrentRoute($route->reveal());
+    $current_context->setCurrentRoute($route);
 
     $this->container->set('jsonapi.current_context', $current_context);
     $this->container->get('serializer');
@@ -354,12 +348,11 @@ class DocumentRootNormalizerTest extends KernelTestBase {
   public function testDenormalize() {
     $payload = '{"type":"article", "data":{"attributes":{"title":"Testing article"}}}';
     $request = $this->prophesize(Request::class);
-    $route = $this->prophesize(Route::class);
-    $route->getPath()->willReturn('/node/article');
-    $route->getRequirement('_entity_type')->willReturn('node');
-    $route->getRequirement('_bundle')->willReturn('article');
-    $route->getDefault('_on_relationship')->willReturn(NULL);
-    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route->reveal());
+    $route = new Route('/node/article', ['_on_relationship' => NULL], [
+      '_entity_type' => 'node',
+      '_bundle' => 'article',
+    ]);
+    $request->get(RouteObjectInterface::ROUTE_OBJECT)->willReturn($route);
     $resource_config = $this->prophesize(ResourceConfigInterface::CLASS);
     $resource_config->getTypeName()->willReturn('node--article');
     $resource_config->getEntityTypeId()->willReturn('node');