Add tests

test/KeyedLockingFileMutexTest.php

@@ -0,0 +1,27 @@
+<?php declare(strict_types=1);
+
+namespace Amp\File\Test;
+
+use Amp\File\KeyedLockingFileMutex;
+use Amp\Sync\AbstractKeyedMutexTest;
+use Amp\Sync\KeyedMutex;
+
+final class KeyedLockingFileMutexTest extends AbstractKeyedMutexTest
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+        Fixture::init();
+    }
+
+    protected function tearDown(): void
+    {
+        parent::tearDown();
+        Fixture::clear();
+    }
+
+    public function createMutex(): KeyedMutex
+    {
+        return new KeyedLockingFileMutex(Fixture::path());
+    }
+}

test/LockingFileMutexTest.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace Amp\File\Test;
+
+use Amp\File\LockingFileMutex;
+use Amp\Sync\AbstractMutexTest;
+use Amp\Sync\Mutex;
+
+final class LockingFileMutexTest extends AbstractMutexTest
+{
+    public function createMutex(): Mutex
+    {
+        return new LockingFileMutex(\tempnam(\sys_get_temp_dir(), 'mutex-') . '.lock');
+    }
+}