Initial Release

src/Clock/FrozenClock.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Beste\Clock;
+
+use Beste\Clock;
+use DateTimeImmutable;
+use DateTimeZone;
+use Psr\Clock\ClockInterface;
+
+final class FrozenClock implements Clock
+{
+    private DateTimeImmutable $frozenAt;
+
+    private function __construct(DateTimeImmutable $frozenAt)
+    {
+        $this->frozenAt = $frozenAt;
+    }
+
+    public static function at(DateTimeImmutable $time): self
+    {
+        return new self($time);
+    }
+
+    public static function withNowFrom(ClockInterface $clock): self
+    {
+        return new self($clock->now());
+    }
+
+    public static function fromUTC(): self
+    {
+        return new self(new DateTimeImmutable('now', new DateTimeZone('UTC')));
+    }
+
+    public function setTo(DateTimeImmutable $time): self
+    {
+        $this->frozenAt = $time;
+
+        return $this;
+    }
+
+    public function now(): DateTimeImmutable
+    {
+        return clone $this->frozenAt;
+    }
+}