tests: Add a basic test for ActivityStreams

This is just a basic test that parses a specific object, and tests that
all the referenced objects are fetched from the originating servers.

1 files changed, 136 insertions, 0 deletions

diff --git a/tests/unit/Lib/ActivityStreamsTest.php b/tests/unit/Lib/ActivityStreamsTest.php
new file mode 100644
index 000000000..38be1792e
--- /dev/null
+++ b/tests/unit/Lib/ActivityStreamsTest.php
@@ -0,0 +1,136 @@
+<?php
+/**
+ * Unit tests for Zotlabs\Lib\ActivityStreams.
+ *
+ * SPDX-FileCopyrightText: 2024 Hubzilla Community
+ * SPDX-FileContributor: Harald Eilertsen
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+namespace Zotlabs\Tests\Unit\Lib;
+
+use phpmock\phpunit\PHPMock;
+use Zotlabs\Lib\ActivityStreams;
+use Zotlabs\Tests\Unit\UnitTestCase;
+
+class ActivityStreamsTest extends UnitTestCase {
+
+	// Import PHPMock methods into this class
+	use PHPMock;
+
+	/**
+	 * Test parsing an announce activity of a like from a remote server of
+	 * a note from a third server.
+	 *
+	 * Also test that we fetch the referenced objects when the received
+	 * activity is parsed,
+	 */
+	public function test_parse_announce_of_like(): void {
+		$payload = <<<JSON
+			{
+			  "actor": "https://lemmy.test/c/technology",
+			  "to": [
+				"https://www.w3.org/ns/activitystreams#Public"
+			  ],
+			  "object": {
+				"id": "https://lemmy.test/activities/like/e6e38c8b-beee-406f-9523-9da7ec97a823",
+				"actor": "https://lemmy.test/u/SomePerson",
+				"object": "https://somesite.test/post/1197552",
+				"type": "Like",
+				"audience": "https://lemmy.test/c/technology"
+			  },
+			  "cc": [
+				"https://lemmy.test/c/technology/followers"
+			  ],
+			  "type": "Announce",
+			  "id": "https://lemmy.test/activities/announce/like/9e583a54-e4e0-4436-9726-975a14f923ed"
+			}
+			JSON;
+
+		//
+		// Mock z_fetch_url to prevent us from spamming real servers during test runs
+		//
+		// We just create some sample ActivityStreams objects to return for the various
+		// URL's to make it a somewhat realistic test. Each object will have it's URL as
+		// it's id and only specify the object type as laid out in the $urlmap below.
+
+		$urlmap = [
+			'https://lemmy.test/c/technology' => [ 'type' => 'Group' ],
+			'https://lemmy.test/u/SomePerson' => [ 'type' => 'Person' ],
+			'https://somesite.test/post/1197552' => [ 'type' => 'Note' ],
+		];
+
+		$z_fetch_url_stub = $this->getFunctionMock('Zotlabs\Lib', 'z_fetch_url');
+		$z_fetch_url_stub
+			->expects($this->any())
+			->willReturnCallback(function ($url) use ($urlmap) {
+				if (isset($urlmap[$url])) {
+					$body = json_encode(
+						array_merge([ 'id' => $url ], $urlmap[$url]),
+						JSON_FORCE_OBJECT,
+					);
+
+					return [
+						'success' => true,
+						'body' => $body,
+					];
+				} else {
+					// We should perhaps throw an error here to fail the test,
+					// as we're receiving an unexpected URL.
+					return [
+						'success' => false,
+					];
+				}
+			});
+
+		// Make sure we have a sys channel before we start
+		create_sys_channel();
+
+		$as = new ActivityStreams($payload);
+
+		$this->assertTrue($as->valid);
+
+		$this->assertEquals(
+			'https://lemmy.test/activities/announce/like/9e583a54-e4e0-4436-9726-975a14f923ed',
+			$as->id
+		);
+
+		$this->assertEquals('Announce', $as->type);
+
+		$this->assertIsArray($as->actor);
+		$this->assertArrayHasKey('id', $as->actor);
+		$this->assertEquals('https://lemmy.test/c/technology', $as->actor['id']);
+		$this->assertArrayHasKey('type', $as->actor);
+		$this->assertEquals('Group', $as->actor['type']);
+
+		$this->assertIsArray($as->recips);
+		$this->assertContains('https://www.w3.org/ns/activitystreams#Public', $as->recips);
+		$this->assertContains('https://lemmy.test/c/technology/followers', $as->recips);
+		$this->assertContains('https://lemmy.test/c/technology', $as->recips);
+
+		$this->assertIsArray($as->obj);
+		$this->assertArrayHasKey('id', $as->obj);
+		$this->assertEquals(
+			'https://lemmy.test/activities/like/e6e38c8b-beee-406f-9523-9da7ec97a823',
+			$as->obj['id']
+		);
+		$this->assertArrayHasKey('type', $as->obj);
+		$this->assertEquals('Like', $as->obj['type']);
+		$this->assertArrayHasKey('object', $as->obj);
+
+		$this->assertIsArray($as->obj['object']);
+
+		$this->assertArrayHasKey('id', $as->obj['object']);
+		$this->assertEquals('https://somesite.test/post/1197552', $as->obj['object']['id']);
+
+		$this->assertArrayHasKey('type', $as->obj['object']);
+		$this->assertEquals('Note', $as->obj['object']['type']);
+
+		$this->assertIsArray($as->obj['actor']);
+		$this->assertArrayHasKey('id', $as->obj['actor']);
+		$this->assertEquals('https://lemmy.test/u/SomePerson', $as->obj['actor']['id']);
+		$this->assertArrayHasKey('type', $as->obj['actor']);
+		$this->assertEquals('Person', $as->obj['actor']['type']);
+	}
+}