Add ExternalTaskManager class

tests/units/Core/ExternalTask/ExternalTaskManagerTest.php

@@ -0,0 +1,44 @@
+<?php
+
+use Kanboard\Core\ExternalTask\ExternalTaskManager;
+
+require_once __DIR__.'/../../Base.php';
+
+class ExternalTaskManagerTest extends Base
+{
+    public function testProviderNotFound()
+    {
+        $this->setExpectedException('Kanboard\Core\ExternalTask\ProviderNotFoundException');
+
+        $manager = new ExternalTaskManager();
+        $manager->getProvider('foobar');
+    }
+
+    public function testRegister()
+    {
+        $provider = $this->getMock('Kanboard\Core\ExternalTask\ExternalTaskProviderInterface');
+        $provider->expects($this->any())->method('getName')->willReturn('MyProvider');
+
+        $manager = new ExternalTaskManager();
+        $manager->register($provider);
+
+        $this->assertInstanceOf('Kanboard\Core\ExternalTask\ExternalTaskProviderInterface', $manager->getProvider('MyProvider'));
+    }
+
+    public function testGetList()
+    {
+        $provider1 = $this->getMock('Kanboard\Core\ExternalTask\ExternalTaskProviderInterface');
+        $provider1->expects($this->any())->method('getName')->willReturn('MyProvider1');
+
+        $provider2 = $this->getMock('Kanboard\Core\ExternalTask\ExternalTaskProviderInterface');
+        $provider2->expects($this->any())->method('getName')->willReturn('MyProvider2');
+
+        $manager = new ExternalTaskManager();
+        $manager->register($provider1);
+        $manager->register($provider2);
+        $providers = $manager->getProvidersList();
+
+        $expected = array('MyProvider1' => 'MyProvider1', 'MyProvider2' => 'MyProvider2');
+        $this->assertEquals($expected, $providers);
+    }
+}