Add the DrupalUserContext. Thank you @mistermashu. Great job!

src/Palantirnet/PalantirBehatExtension/Context/DrupalUserContext.php

@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * @file
+ *
+ * @copyright Copyright (c) 2016 Palantir.net
+ */
+
+use Behat\Gherkin\Node\TableNode;
+use Palantirnet\PalantirBehatExtension\Context\SharedDrupalContext;
+
+class DrupalUserContext extends SharedDrupalContext {
+  /**
+   * Asserts a role has a list of permissions
+   *
+   * @Then the :role role should have the permission(s):
+   *
+   * @param String $role
+   * @param TableNode $perms
+   */
+  public function assertRoleHasPermission($role, TableNode $perms) {
+    // get the role storage object so we can query it for permissions
+    $roleStorage = \Drupal::entityManager()->getStorage('user_role');
+
+    // convert the single role given to an array for the isPermissionInRoles() function
+    $rids = array($role);
+
+    foreach($perms->getHash() as $row){
+      // grab the value out of the row. it will always be the first value
+      $perm = reset($row);
+
+      // check the permission against the role
+      if(!$roleStorage->isPermissionInRoles($perm, $rids)){
+        throw new Exception('Role '.$role.' does not have permission '.$perm);
+      }
+    }
+  }
+}