diff --git a/tests/cases/TestArsse.php b/tests/cases/TestArsse.php
new file mode 100644
index 0000000..179f399
--- /dev/null
+++ b/tests/cases/TestArsse.php
@@ -0,0 +1,47 @@
+<?php
+/** @license MIT
+ * Copyright 2017 J. King, Dustin Wilson et al.
+ * See LICENSE and AUTHORS files for details */
+
+declare(strict_types=1);
+namespace JKingWeb\Arsse\TestCase;
+
+use JKingWeb\Arsse\Arsse;
+use JKingWeb\Arsse\Conf;
+use JKingWeb\Arsse\Lang;
+use JKingWeb\Arsse\User;
+use JKingWeb\Arsse\Database;
+use JKingWeb\Arsse\Service;
+
+/** @covers \JKingWeb\Arsse\Arsse */
+class TestArsse extends \JKingWeb\Arsse\Test\AbstractTest {
+    public function setUp() {
+        self::clearData(false);
+    }
+    public function tearDown() {
+        self::clearData();
+    }
+
+    public function testLoadExistingData() {
+        $lang = Arsse::$lang = \Phake::mock(Lang::class);
+        $db = Arsse::$db = \Phake::mock(Database::class);
+        $user = Arsse::$user = \Phake::mock(User::class);
+        $conf1 = Arsse::$conf = \Phake::mock(Conf::class);
+        $conf2 = (new Conf)->import(['lang' => "test"]);
+        Arsse::load($conf2);
+        $this->assertSame($conf2, Arsse::$conf);
+        $this->assertSame($lang, Arsse::$lang);
+        $this->assertSame($db, Arsse::$db);
+        $this->assertSame($user, Arsse::$user);
+        \Phake::verify($lang)->set("test");
+    }
+
+    public function testLoadNewData() {
+        $conf = (new Conf)->import(['dbSQLite3File' => ":memory:"]);
+        Arsse::load($conf);
+        $this->assertInstanceOf(Conf::class, Arsse::$conf);
+        $this->assertInstanceOf(Lang::class, Arsse::$lang);
+        $this->assertInstanceOf(Database::class, Arsse::$db);
+        $this->assertInstanceOf(User::class, Arsse::$user);
+    }
+}
diff --git a/tests/phpunit.dist.xml b/tests/phpunit.dist.xml
index e24e0d0..dd2ba50 100644
--- a/tests/phpunit.dist.xml
+++ b/tests/phpunit.dist.xml
@@ -129,6 +129,7 @@
     <testsuite name="Admin tools">
         <file>cases/Service/TestService.php</file>
         <file>cases/CLI/TestCLI.php</file>
+        <file>cases/TestArsse.php</file>
     </testsuite>
     <testsuite name="Import/Export">
         <file>cases/ImportExport/TestFile.php</file>