1 files changed, 65 insertions, 0 deletions
diff --git a/tests/unit/CallHooksTest.php b/tests/unit/CallHooksTest.php
new file mode 100644
index 000000000..0170f31d0
--- /dev/null
+++ b/tests/unit/CallHooksTest.php
@@ -0,0 +1,65 @@
+<?php
+/**
+ * Unit tests for the `call_hooks` function, located in include/plugin.php.
+ *
+ * SPDX-FileCopyrightText: 2024 Hubzilla Community
+ * SPDX-FileContributor: Harald Eilertsen
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+namespace Zotlabs\Tests\Unit;
+
+use PHPUnit\Framework\Attributes\BackupStaticProperties;
+use App;
+
+#[BackupStaticProperties(App::class)]
+class CallHooksTest extends UnitTestCase {
+
+	/**
+	 * Test using a freestanding function as callback.
+	 *
+	 * @SuppressWarnings(PHPMD.EvalExpression)
+	 */
+	public function test_freestanding_function_as_string(): void {
+		eval('function hook_test_function(array &$args): void { $args["called"] = true; }');
+		insert_hook('test_hook', 'hook_test_function');
+		$this->assertHookInvoked();
+	}
+
+	public function test_static_class_function_as_string(): void {
+		insert_hook('test_hook', 'Zotlabs\Tests\Unit\CallHooksTest::static_test_hook');
+		$this->assertHookInvoked();
+	}
+
+	public function test_static_class_function_as_array(): void {
+		insert_hook('test_hook', ['Zotlabs\Tests\Unit\CallHooksTest', 'static_test_hook']);
+		$this->assertHookInvoked();
+	}
+
+	public function test_static_class_function_as_serialized_array(): void {
+		insert_hook('test_hook', serialize(['Zotlabs\Tests\Unit\CallHooksTest', 'static_test_hook']));
+		$this->assertHookInvoked();
+	}
+
+	public function test_instance_function_as_array(): void {
+		insert_hook('test_hook', [$this, 'instance_test_hook']);
+		$this->assertHookInvoked();
+	}
+
+
+	public function assertHookInvoked(): void {
+		$test_hook_args = ['called' => false];
+		call_hooks('test_hook', $test_hook_args);
+
+		$this->assertTrue($test_hook_args['called']);
+	}
+
+	public function instance_test_hook(array &$args): void {
+		$args['called'] = true;
+	}
+	public static function static_test_hook(array &$args): void {
+		$args['called'] = true;
+	}
+}
+