Add loop tests

composer.json

@@ -13,6 +13,9 @@
     "require": {
         "async-interop/event-loop": "dev-master"
     },
+    "require-dev": {
+        "async-interop/event-loop-test": "dev-master"
+    },
     "provide": {
         "async-interop/event-loop-implementation": "dev-master"
     },

phpunit.xml.dist

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.1/phpunit.xsd"
+        backupGlobals="false"
+        backupStaticAttributes="false"
+        bootstrap="vendor/autoload.php"
+        colors="true"
+        convertErrorsToExceptions="true"
+        convertNoticesToExceptions="true"
+        convertWarningsToExceptions="true"
+        processIsolation="false"
+        stopOnFailure="false"
+>
+    <testsuites>
+        <testsuite name="Amp Loop">
+            <directory>test</directory>
+        </testsuite>
+    </testsuites>
+    <filter>
+        <whitelist>
+            <directory suffix=".php">lib</directory>
+        </whitelist>
+    </filter>
+    <logging>
+        <log type="coverage-html" target="build/coverage" title="Amp" highlight="true"/>
+        <log type="coverage-clover" target="build/logs/clover.xml"/>
+    </logging>
+</phpunit>

test/NativeLoopTest.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Amp\Test\Loop;
+
+use Amp\Loop\NativeLoop;
+use Interop\Async\Loop\DriverFactory;
+use Interop\Async\Loop\Test;
+
+class NativeLoopTest extends Test {
+    public function getFactory() {
+        $factory = $this->getMockBuilder(DriverFactory::class)->getMock();
+
+        $factory->method('create')
+            ->willReturn(new NativeLoop());
+
+        return $factory;
+    }
+}