add test for ASCache::isCacheable()

tests/unit/Lib/ASCacheTest.php

@@ -0,0 +1,46 @@
+<?php
+namespace Zotlabs\Tests\Unit\Lib;
+
+error_reporting(E_ALL);
+
+use Zotlabs\Tests\Unit\UnitTestCase;
+use Zotlabs\Lib\ASCache;
+
+class ASCacheTest extends UnitTestCase {
+
+	/**
+	 * @dataProvider isCacheableProvider
+	 */
+	public function testIsCacheable(array $obj, bool $expected)
+	{
+		$result = ASCache::isCacheable($obj);
+		$this->assertSame($expected, $result);
+	}
+
+	public static function isCacheableProvider(): array
+	{
+		return [
+			'to field as:public' => [
+				['to' => [ACTIVITY_PUBLIC_INBOX]],
+				true
+			],
+			'cc field as:public' => [
+				['to' => ['https://example.com/channel/test'], 'cc' => [ACTIVITY_PUBLIC_INBOX]],
+				true
+			],
+			'fields are strings' => [
+				['to' => 'https://example.com/channel/test', 'cc' => ACTIVITY_PUBLIC_INBOX],
+				true
+			],
+			'none  as:public' => [
+				['to' => ['https://example.com/channel/test'], 'cc' => ['https://example.com/channel/test/followers']],
+				false
+			],
+			'no  addressing' => [
+				['type' => ['Person'], 'url' => ['https://example.com/channel/test']],
+				true
+			],
+		];
+	}
+
+}