Merge pull request #18 from localheinz/feature/squid-cache

Enhancement: Add interface for Squid cache request methods

src/Method/Vendor/SquidCache.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2019 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * @see https://github.com/localheinz/http-method
+ */
+
+namespace Localheinz\Http\Method\Vendor;
+
+/**
+ * @see https://wiki.squid-cache.org/FrontPage
+ */
+interface SquidCache
+{
+    /**
+     * Safe: no
+     * Idempotent: ?
+     *
+     * @see https://wiki.squid-cache.org/SquidFaq/OperatingSquid#How_can_I_purge_an_object_from_my_cache.3F
+     * @see https://wiki.squid-cache.org/SquidFaq/OperatingSquid#How_can_I_purge_multiple_objects_from_my_cache.3F
+     */
+    public const PURGE = 'PURGE';
+}

test/Unit/Method/Vendor/SquidCacheTest.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2019 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * @see https://github.com/localheinz/http-method
+ */
+
+namespace Localheinz\Http\Test\Unit\Method\Vendor;
+
+use Localheinz\Http\Method\Vendor\SquidCache;
+use PHPUnit\Framework;
+
+/**
+ * @internal
+ *
+ * @covers \Localheinz\Http\Method\Vendor\SquidCache
+ */
+final class SquidCacheTest extends Framework\TestCase
+{
+    public function testConstants(): void
+    {
+        self::assertSame('PURGE', SquidCache::PURGE);
+    }
+}