Tests: Add unit tests for wp_ajax_get_permalink()

tests/phpunit/tests/admin/includes/ajax-actions/getPermalink.php

@@ -0,0 +1,108 @@
+<?php
+
+/**
+ * Admin Ajax functions to be tested.
+ */
+require_once ABSPATH . 'wp-admin/includes/ajax-actions.php';
+
+/**
+ * Testing wp_ajax_get_permalink() functionality.
+ *
+ * @package WordPress
+ * @subpackage UnitTests
+ * @since 3.1.0
+ *
+ * @group ajax
+ *
+ * @covers ::wp_ajax_get_permalink
+ */
+class Tests_wp_ajax_get_permalink extends WP_Ajax_UnitTestCase {
+
+	/**
+	 * Administrator user ID.
+	 *
+	 * @var int
+	 */
+	protected static $admin_id;
+
+	/**
+	 * Setup test fixtures.
+	 *
+	 * @param WP_UnitTest_Factory $factory
+	 */
+	public static function wpSetUpBeforeClass( WP_UnitTest_Factory $factory ): void {
+		self::$admin_id = $factory->user->create( array( 'role' => 'administrator' ) );
+	}
+
+	/**
+	 * Tests successful retrieval of a post permalink.
+	 *
+	 * @ticket 65252
+	 */
+	public function test_get_permalink_success(): void {
+		wp_set_current_user( self::$admin_id );
+
+		$post_id = self::factory()->post->create(
+			array(
+				'post_title' => 'Test Post',
+			)
+		);
+
+		$_POST = array(
+			'action'            => 'get-permalink',
+			'post_id'           => $post_id,
+			'getpermalinknonce' => wp_create_nonce( 'getpermalink' ),
+		);
+
+		try {
+			$this->_handleAjax( 'get-permalink' );
+		} catch ( WPAjaxDieContinueException $e ) {
+			// Expect success.
+		}
+
+		$this->assertStringContainsString( 'p=' . $post_id, $this->_last_response );
+		$this->assertStringContainsString( 'preview=true', $this->_last_response );
+	}
+
+	/**
+	 * Tests failure due to invalid nonce.
+	 *
+	 * @ticket 65252
+	 */
+	public function test_get_permalink_invalid_nonce(): void {
+		wp_set_current_user( self::$admin_id );
+
+		$_POST = array(
+			'action'            => 'get-permalink',
+			'post_id'           => 123,
+			'getpermalinknonce' => 'invalid-nonce',
+		);
+
+		$this->expectException( WPAjaxDieContinueException::class );
+		$this->expectExceptionMessage( '-1' );
+
+		$this->_handleAjax( 'get-permalink' );
+	}
+
+	/**
+	 * Tests behavior with missing post ID.
+	 *
+	 * @ticket 65252
+	 */
+	public function test_get_permalink_missing_post_id(): void {
+		wp_set_current_user( self::$admin_id );
+
+		$_POST = array(
+			'action'            => 'get-permalink',
+			'getpermalinknonce' => wp_create_nonce( 'getpermalink' ),
+		);
+
+		try {
+			$this->_handleAjax( 'get-permalink' );
+		} catch ( WPAjaxDieContinueException $e ) {
+			// Expect success (it will return a link for post ID 0, which is usually home or a generic preview link).
+		}
+
+		$this->assertNotEmpty( $this->_last_response );
+	}
+}