Added manager tests.

tests/Manager/Load_Order_ManagerTest.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Rarst\Laps\Tests\Manager;
+
+use Brain\Monkey\Functions;
+use Rarst\Laps\Manager\Load_Order_Manager;
+use Rarst\Laps\Tests\LapsTestCase;
+
+/**
+ * @coversDefaultClass Rarst\Laps\Manager\Load_Order_Manager
+ */
+class Load_Order_ManagerTest extends LapsTestCase {
+
+	/**
+	 * @covers ::__construct
+	 *
+	 * @return Load_Order_Manager
+	 */
+	public function test__construct() {
+
+		$manager = new Load_Order_Manager();
+
+		$this->assertTrue( has_action( 'pre_update_option_active_plugins', [ $manager, 'pre_update_option_active_plugins' ] ) );
+		$this->assertTrue( has_action( 'pre_update_site_option_active_sitewide_plugins', [ $manager, 'pre_update_option_active_plugins' ] ) );
+
+		return $manager;
+
+	}
+
+	/**
+	 * @covers ::pre_update_option_active_plugins
+	 * @depends test__construct
+	 */
+	public function testPre_update_option_active_plugins( Load_Order_Manager $manager ) {
+
+		$plugins = [
+			'foo/bar.php',
+			'laps/laps.php',
+			'baz/qux.php',
+		];
+
+		Functions\expect( 'plugin_basename' )->once()->andReturn( 'laps/laps.php' );
+
+		$plugins = $manager->pre_update_option_active_plugins( $plugins );
+
+		$this->assertInternalType( 'array', $plugins );
+		$this->assertCount( 3, $plugins );
+		$this->assertEquals( 'laps/laps.php', $plugins[0] );
+	}
+}