--- /dev/null
+<?php
+
+/*
+ * This file is part of the Behat Testwork.
+ * (c) Konstantin Kudryashov <ever.zet@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Behat\Testwork\EventDispatcher\Tester;
+
+use Behat\Testwork\EventDispatcher\Event\AfterExerciseCompleted;
+use Behat\Testwork\EventDispatcher\Event\AfterExerciseSetup;
+use Behat\Testwork\EventDispatcher\Event\BeforeExerciseCompleted;
+use Behat\Testwork\EventDispatcher\Event\BeforeExerciseTeardown;
+use Behat\Testwork\Tester\Exercise;
+use Behat\Testwork\Tester\Result\TestResult;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+
+/**
+ * Exercise dispatching BEFORE/AFTER events during its execution.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+final class EventDispatchingExercise implements Exercise
+{
+ /**
+ * @var Exercise
+ */
+ private $baseExercise;
+ /**
+ * @var EventDispatcherInterface
+ */
+ private $eventDispatcher;
+
+ /**
+ * Initializes exercise.
+ *
+ * @param Exercise $baseExercise
+ * @param EventDispatcherInterface $eventDispatcher
+ */
+ public function __construct(Exercise $baseExercise, EventDispatcherInterface $eventDispatcher)
+ {
+ $this->baseExercise = $baseExercise;
+ $this->eventDispatcher = $eventDispatcher;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setUp(array $iterators, $skip)
+ {
+ $event = new BeforeExerciseCompleted($iterators);
+ $this->eventDispatcher->dispatch($event::BEFORE, $event);
+
+ $setup = $this->baseExercise->setUp($iterators, $skip);
+
+ $event = new AfterExerciseSetup($iterators, $setup);
+ $this->eventDispatcher->dispatch($event::AFTER_SETUP, $event);
+
+ return $setup;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function test(array $iterators, $skip = false)
+ {
+ return $this->baseExercise->test($iterators, $skip);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function tearDown(array $iterators, $skip, TestResult $result)
+ {
+ $event = new BeforeExerciseTeardown($iterators, $result);
+ $this->eventDispatcher->dispatch($event::BEFORE_TEARDOWN, $event);
+
+ $teardown = $this->baseExercise->tearDown($iterators, $skip, $result);
+
+ $event = new AfterExerciseCompleted($iterators, $result, $teardown);
+ $this->eventDispatcher->dispatch($event::AFTER, $event);
+
+ return $teardown;
+ }
+}