Initial Release

tests/Clock/UTCClockTest.php

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Beste\Clock\Tests;
+
+use Beste\Clock\UTCClock;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @internal
+ * @coversDefaultClass \Beste\Clock\UTCClock
+ */
+final class UTCClockTest extends TestCase
+{
+    private string $defaultTimeZone;
+
+    protected function setUp(): void
+    {
+        $this->defaultTimeZone = date_default_timezone_get();
+    }
+
+    protected function tearDown(): void
+    {
+        date_default_timezone_set($this->defaultTimeZone);
+    }
+
+    /**
+     * @test
+     *
+     * @covers ::__construct
+     * @covers ::create
+     * @covers ::now
+     */
+    public function itUsesUTCRegardlessOfTheSystemTimeZone(): void
+    {
+        date_default_timezone_set('Europe/Berlin');
+
+        $clock = UTCClock::create();
+        $now = $clock->now();
+
+        self::assertSame('UTC', $now->getTimezone()->getName());
+    }
+}