From 8883200238466d30eb2d9ba5fa01a71c9d4c6608 Mon Sep 17 00:00:00 2001
From: Nilambar Sharma <nilambar@outlook.com>
Date: Thu, 7 Nov 2024 17:38:34 +0545
Subject: [PATCH] Add unit test for License_Utils

---
 .../tests/Traits/License_Utils_Tests.php      | 115 ++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 tests/phpunit/tests/Traits/License_Utils_Tests.php

diff --git a/tests/phpunit/tests/Traits/License_Utils_Tests.php b/tests/phpunit/tests/Traits/License_Utils_Tests.php
new file mode 100644
index 00000000..1fb25663
--- /dev/null
+++ b/tests/phpunit/tests/Traits/License_Utils_Tests.php
@@ -0,0 +1,115 @@
+<?php
+/**
+ * Tests for the License_Utils trait.
+ *
+ * @package plugin-check
+ */
+
+use WordPress\Plugin_Check\Traits\License_Utils;
+
+class License_Utils_Tests extends WP_UnitTestCase {
+
+	use License_Utils;
+
+	/**
+	 * @dataProvider data_licenses_for_normalization
+	 */
+	public function test_license_normalization( $raw, $normalized ) {
+		$result = $this->get_normalized_license( $raw );
+
+		$this->assertSame( $normalized, $result );
+	}
+
+	/**
+	 * @dataProvider data_license_identifiers
+	 */
+	public function test_license_identifier( $license, $validity ) {
+		$result = $this->is_license_valid_identifier( $license );
+
+		$this->assertSame( $validity, $result );
+	}
+
+	/**
+	 * @dataProvider data_license_gpl_compatibility
+	 */
+	public function test_license_gpl_compatibility( $license, $validity ) {
+		$result = $this->is_license_gpl_compatible( $license );
+
+		$this->assertSame( $validity, $result );
+	}
+
+	public function data_licenses_for_normalization() {
+		return array(
+			array( 'GPLv2', 'GPL2' ),
+			array( 'GPLv2 or later', 'GPL2' ),
+			array( 'GPLv2  or  later', 'GPL2' ),
+			array( 'GPLv2-or-later', 'GPL2' ),
+			array( 'GPL v2 or later', 'GPL2' ),
+			array( 'GPL-2.0', 'GPL2' ),
+			array( 'GPL-2.0-or-later', 'GPL2' ),
+			array( 'GNU General Public License v2.0 or later', 'GPL2' ),
+			array( 'GPL-2.0+', 'GPL2' ),
+			array( 'GNU General Public License (GPL) 2.0', 'GPL2' ),
+			array( 'GPL version 2', 'GPL2' ),
+			array( 'GPL version 2 or later', 'GPL2' ),
+
+			array( 'GPLv3', 'GPL3' ),
+			array( 'GPLv3 or later', 'GPL3' ),
+			array( 'GPLv3  or  later', 'GPL3' ),
+			array( 'GPLv3-or-later', 'GPL3' ),
+			array( 'GPL v3 or later', 'GPL3' ),
+			array( 'GPL-3.0', 'GPL3' ),
+			array( 'GPL-3.0-or-later', 'GPL3' ),
+			array( 'GNU General Public License v3.0 or later', 'GPL3' ),
+			array( 'GPL-3.0+', 'GPL3' ),
+			array( 'GNU General Public License (GPL) 3.0', 'GPL3' ),
+			array( 'GPL version 3', 'GPL3' ),
+			array( 'GPL version 3 or later', 'GPL3' ),
+
+			array( 'MPL-1.0', 'MPL10' ),
+			array( 'MPL-2.0', 'MPL20' ),
+		);
+	}
+
+	public function data_license_identifiers() {
+		return array(
+			array( 'GPLv2', true ),
+			array( 'GPL3', true ),
+			array( 'mpl-2.0', true ),
+			array( 'lgpl-3.0-or-later', true ),
+			array( 'artistic-license-2.0 or MIT', true ),
+			array( 'cc-by-sa-4.0 or cc-by-nc-4.0', true ),
+			array( 'public-domain or unlicense', true ),
+			array( 'eupl-1.1+', true ),
+			array( 'AGPL-3.0-only', true ),
+
+			array( 'MIT License', false ),
+			array( 'GPL (v3)', false ),
+			array( 'my_custom_license', false ),
+			array( 'LGPL 3.0 or later', false ),
+			array( 'GPL-2.0+ with font exception', false ),
+		);
+	}
+
+	public function data_license_gpl_compatibility() {
+		return array(
+			array( 'GPL2', true ),
+			array( 'GPL3', true ),
+			array( 'MPL20', true ),
+			array( 'MIT', true ),
+			array( 'Apache', true ),
+			array( 'FreeBSD', true ),
+			array( 'New BSD', true ),
+			array( 'BSD-3-Clause', true ),
+			array( 'BSD 3 Clause', true ),
+			array( 'OpenLDAP', true ),
+			array( 'Expat', true ),
+
+			array( 'EPL', false ),
+			array( 'EUPL', false ),
+			array( 'MPL10', false ),
+			array( 'YPL', false ),
+			array( 'ZPL', false ),
+		);
+	}
+}