From 081aad9986449ad0136286a66a0dc79457c47425 Mon Sep 17 00:00:00 2001
From: John Okely <john@moodle.com>
Date: Fri, 12 May 2017 12:15:25 +0800
Subject: [PATCH] MDL-58898 oauth: Cover orphaned linked logins in unit tests

---
 auth/oauth2/tests/api_test.php | 101 +++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 auth/oauth2/tests/api_test.php

diff --git a/auth/oauth2/tests/api_test.php b/auth/oauth2/tests/api_test.php
new file mode 100644
index 0000000000000..817430ac8cde2
--- /dev/null
+++ b/auth/oauth2/tests/api_test.php
@@ -0,0 +1,101 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Auth oauth2 api functions tests.
+ *
+ * @package     auth_oauth2
+ * @copyright   2017 Damyon Wiese
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+global $CFG;
+
+/**
+ * External auth oauth2 API tests.
+ *
+ * @package     auth_oauth2
+ * @copyright   2017 Damyon Wiese
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class auth_oauth2_external_testcase extends advanced_testcase {
+
+    /**
+     * Test the cleaning of orphaned linked logins for all issuers.
+     */
+    public function test_clean_orphaned_linked_logins() {
+        $this->resetAfterTest();
+        $this->setAdminUser();
+
+        $issuer = \core\oauth2\api::create_standard_issuer('google');
+        \core\oauth2\api::create_standard_issuer('microsoft');
+
+        $user = $this->getDataGenerator()->create_user();
+        $info = [];
+        $info['username'] = 'banana';
+        $info['email'] = 'banana@example.com';
+        \auth_oauth2\api::link_login($info, $issuer, $user->id, false);
+
+        \core\oauth2\api::delete_issuer($issuer->get('id'));
+
+        $linkedlogins = \auth_oauth2\api::get_linked_logins($user->id, $issuer);
+        $this->assertCount(1, $linkedlogins);
+
+        \auth_oauth2\api::clean_orphaned_linked_logins();
+
+        $linkedlogins = \auth_oauth2\api::get_linked_logins($user->id, $issuer);
+        $this->assertCount(0, $linkedlogins);
+
+        $match = \auth_oauth2\api::match_username_to_user('banana', $issuer);
+        $this->assertFalse($match);
+    }
+
+    /**
+     * Test the cleaning of orphaned linked logins for a specific issuer.
+     */
+    public function test_clean_orphaned_linked_logins_with_issuer_id() {
+        $this->resetAfterTest();
+        $this->setAdminUser();
+
+        $issuer1 = \core\oauth2\api::create_standard_issuer('google');
+        $issuer2 = \core\oauth2\api::create_standard_issuer('microsoft');
+
+        $user1 = $this->getDataGenerator()->create_user();
+        $info = [];
+        $info['username'] = 'banana';
+        $info['email'] = 'banana@example.com';
+        \auth_oauth2\api::link_login($info, $issuer1, $user1->id, false);
+
+        $user2 = $this->getDataGenerator()->create_user();
+        $info = [];
+        $info['username'] = 'apple';
+        $info['email'] = 'apple@example.com';
+        \auth_oauth2\api::link_login($info, $issuer2, $user2->id, false);
+
+        \core\oauth2\api::delete_issuer($issuer1->get('id'));
+
+        \auth_oauth2\api::clean_orphaned_linked_logins($issuer1->get('id'));
+
+        $linkedlogins = \auth_oauth2\api::get_linked_logins($user1->id, $issuer1);
+        $this->assertCount(0, $linkedlogins);
+
+        $linkedlogins = \auth_oauth2\api::get_linked_logins($user2->id, $issuer2);
+        $this->assertCount(1, $linkedlogins);
+    }
+
+}