Stub out new tests

tests/TalksBundle/TwigExtension/TalksExtensionTest.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Tests\FormatTalksBundle\TwigExtension;
+
+use DateTime;
+use TalksBundle\TwigExtension\TalksExtension;
+use Illuminate\Support\Collection;
+use PHPUnit\Framework\TestCase;
+
+class TalksExtensionTest extends TestCase
+{
+    /**
+     * @var TalksExtension
+     */
+    private $extension;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setUp()
+    {
+        $this->extension = new TalksExtension();
+    }
+
+    /** @test */
+    public function talks_given_multiple_times_are_only_returned_once()
+    {
+        $this->markTestIncomplete();
+    }
+
+    /** @test */
+    public function talks_are_ordered_by_the_most_recent_event_date()
+    {
+        $this->markTestIncomplete();
+    }
+
+    /** @test */
+    public function only_past_events_can_be_retrieved()
+    {
+        $this->markTestIncomplete();
+    }
+
+    /** @test */
+    public function only_future_events_can_be_retrieved()
+    {
+        $this->markTestIncomplete();
+    }
+}