From 4ab4ff3bd20d59366d6d9cf7928514ef605c545b Mon Sep 17 00:00:00 2001
From: Paul Bearne <pbearne@git.wordpress.org>
Date: Thu, 7 May 2026 11:34:56 -0400
Subject: [PATCH 1/4] Add unit tests for wp_admin_canonical_url() in
 wp-admin/includes/misc.php

---
 .../includes/misc/wpAdminCanonicalUrl.php     | 126 ++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php

diff --git a/tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php b/tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php
new file mode 100644
index 0000000000000..4e4daabaa4941
--- /dev/null
+++ b/tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php
@@ -0,0 +1,126 @@
+<?php
+/**
+ * Test wp_admin_canonical_url().
+ *
+ * @group admin
+ * @group misc
+ */
+class Tests_Admin_Includes_Misc_WpAdminCanonicalUrl extends WP_UnitTestCase {
+
+	/**
+	 * Original $_SERVER values.
+	 *
+	 * @var array
+	 */
+	private $server_orig;
+
+	public function set_up() {
+		parent::set_up();
+		$this->server_orig = $_SERVER;
+	}
+
+	public function tear_down() {
+		$_SERVER = $this->server_orig;
+		parent::tear_down();
+	}
+
+	/**
+	 * Tests wp_admin_canonical_url().
+	 *
+	 * @dataProvider data_wp_admin_canonical_url
+	 *
+	 * @param array  $server_vars $_SERVER variables to set.
+	 * @param string $expected    Expected output substring.
+	 */
+	public function test_wp_admin_canonical_url( array $server_vars, $expected ) {
+		foreach ( $server_vars as $key => $value ) {
+			$_SERVER[ $key ] = $value;
+		}
+
+		ob_start();
+		wp_admin_canonical_url();
+		$output = ob_get_clean();
+
+		$this->assertStringContainsString( $expected, $output );
+		$this->assertStringContainsString( '<script>', $output );
+	}
+
+	/**
+	 * Data provider for test_wp_admin_canonical_url.
+	 *
+	 * @return array<string, array{
+	 *     server_vars: array<string, string>,
+	 *     expected:    string
+	 * }>
+	 */
+	public function data_wp_admin_canonical_url(): array {
+		return array(
+			'no removable query args'            => array(
+				'server_vars' => array(
+					'HTTP_HOST'   => 'example.org',
+					'REQUEST_URI' => '/wp-admin/index.php',
+				),
+				'expected'    => 'href="http://example.org/wp-admin/index.php"',
+			),
+			'with removable query args'           => array(
+				'server_vars' => array(
+					'HTTP_HOST'   => 'example.org',
+					'REQUEST_URI' => '/wp-admin/index.php?settings-updated=true&other=arg',
+				),
+				'expected'    => 'href="http://example.org/wp-admin/index.php?other=arg"',
+			),
+			'with multiple removable query args'  => array(
+				'server_vars' => array(
+					'HTTP_HOST'   => 'example.org',
+					'REQUEST_URI' => '/wp-admin/edit.php?trashed=1&locked=1&paged=2',
+				),
+				'expected'    => 'href="http://example.org/wp-admin/edit.php?paged=2"',
+			),
+			'with https'                          => array(
+				'server_vars' => array(
+					'HTTP_HOST'   => 'example.org',
+					'REQUEST_URI' => '/wp-admin/index.php',
+					'HTTPS'       => 'on',
+				),
+				'expected'    => 'href="https://example.org/wp-admin/index.php"',
+			),
+		);
+	}
+
+	/**
+	 * Tests wp_admin_canonical_url() when removable query args are filtered to be empty.
+	 */
+	public function test_wp_admin_canonical_url_empty_removable_args() {
+		add_filter( 'removable_query_args', '__return_empty_array' );
+
+		ob_start();
+		wp_admin_canonical_url();
+		$output = ob_get_clean();
+
+		remove_filter( 'removable_query_args', '__return_empty_array' );
+
+		$this->assertEmpty( $output, 'Output should be empty when removable query args are filtered to be empty.' );
+	}
+
+	/**
+	 * Tests the wp_admin_canonical_url filter.
+	 */
+	public function test_wp_admin_canonical_url_filter() {
+		$_SERVER['HTTP_HOST']   = 'example.org';
+		$_SERVER['REQUEST_URI'] = '/wp-admin/index.php?settings-updated=true';
+
+		add_filter( 'wp_admin_canonical_url', array( $this, 'filter_canonical_url' ) );
+
+		ob_start();
+		wp_admin_canonical_url();
+		$output = ob_get_clean();
+
+		remove_filter( 'wp_admin_canonical_url', array( $this, 'filter_canonical_url' ) );
+
+		$this->assertStringContainsString( 'href="https://custom.example.org/canonical"', $output );
+	}
+
+	public function filter_canonical_url() {
+		return 'https://custom.example.org/canonical';
+	}
+}

From 48a9321e4a9de1dc9ef27c73fec39834fc398f06 Mon Sep 17 00:00:00 2001
From: Paul Bearne <pbearne@git.wordpress.org>
Date: Thu, 7 May 2026 11:50:46 -0400
Subject: [PATCH 2/4] Add unit tests for wp_page_reload_on_back_button_js() in
 wp-admin/includes/misc.php

---
 .../misc/wpPageReloadOnBackButtonJs.php       | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 tests/phpunit/tests/admin/includes/misc/wpPageReloadOnBackButtonJs.php

diff --git a/tests/phpunit/tests/admin/includes/misc/wpPageReloadOnBackButtonJs.php b/tests/phpunit/tests/admin/includes/misc/wpPageReloadOnBackButtonJs.php
new file mode 100644
index 0000000000000..55e7ad63e35bc
--- /dev/null
+++ b/tests/phpunit/tests/admin/includes/misc/wpPageReloadOnBackButtonJs.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * Test wp_page_reload_on_back_button_js().
+ *
+ * @group admin
+ * @group misc
+ */
+class Tests_Admin_Includes_Misc_WpPageReloadOnBackButtonJs extends WP_UnitTestCase {
+
+	/**
+	 * Tests wp_page_reload_on_back_button_js().
+	 */
+	public function test_wp_page_reload_on_back_button_js() {
+		ob_start();
+		wp_page_reload_on_back_button_js();
+		$output = ob_get_clean();
+
+		$this->assertStringContainsString( '<script>', $output );
+		$this->assertStringContainsString( 'performance.navigation.type === 2', $output );
+		$this->assertStringContainsString( 'document.location.reload( true )', $output );
+		$this->assertStringContainsString( '</script>', $output );
+	}
+}

From 7c4c1bde2bd39472dc433d87cdfbcbdcbb3dc45c Mon Sep 17 00:00:00 2001
From: Paul Bearne <pbearne@gmail.com>
Date: Thu, 7 May 2026 11:52:02 -0400
Subject: [PATCH 3/4] Delete
 tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php

---
 .../includes/misc/wpAdminCanonicalUrl.php     | 126 ------------------
 1 file changed, 126 deletions(-)
 delete mode 100644 tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php

diff --git a/tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php b/tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php
deleted file mode 100644
index 4e4daabaa4941..0000000000000
--- a/tests/phpunit/tests/admin/includes/misc/wpAdminCanonicalUrl.php
+++ /dev/null
@@ -1,126 +0,0 @@
-<?php
-/**
- * Test wp_admin_canonical_url().
- *
- * @group admin
- * @group misc
- */
-class Tests_Admin_Includes_Misc_WpAdminCanonicalUrl extends WP_UnitTestCase {
-
-	/**
-	 * Original $_SERVER values.
-	 *
-	 * @var array
-	 */
-	private $server_orig;
-
-	public function set_up() {
-		parent::set_up();
-		$this->server_orig = $_SERVER;
-	}
-
-	public function tear_down() {
-		$_SERVER = $this->server_orig;
-		parent::tear_down();
-	}
-
-	/**
-	 * Tests wp_admin_canonical_url().
-	 *
-	 * @dataProvider data_wp_admin_canonical_url
-	 *
-	 * @param array  $server_vars $_SERVER variables to set.
-	 * @param string $expected    Expected output substring.
-	 */
-	public function test_wp_admin_canonical_url( array $server_vars, $expected ) {
-		foreach ( $server_vars as $key => $value ) {
-			$_SERVER[ $key ] = $value;
-		}
-
-		ob_start();
-		wp_admin_canonical_url();
-		$output = ob_get_clean();
-
-		$this->assertStringContainsString( $expected, $output );
-		$this->assertStringContainsString( '<script>', $output );
-	}
-
-	/**
-	 * Data provider for test_wp_admin_canonical_url.
-	 *
-	 * @return array<string, array{
-	 *     server_vars: array<string, string>,
-	 *     expected:    string
-	 * }>
-	 */
-	public function data_wp_admin_canonical_url(): array {
-		return array(
-			'no removable query args'            => array(
-				'server_vars' => array(
-					'HTTP_HOST'   => 'example.org',
-					'REQUEST_URI' => '/wp-admin/index.php',
-				),
-				'expected'    => 'href="http://example.org/wp-admin/index.php"',
-			),
-			'with removable query args'           => array(
-				'server_vars' => array(
-					'HTTP_HOST'   => 'example.org',
-					'REQUEST_URI' => '/wp-admin/index.php?settings-updated=true&other=arg',
-				),
-				'expected'    => 'href="http://example.org/wp-admin/index.php?other=arg"',
-			),
-			'with multiple removable query args'  => array(
-				'server_vars' => array(
-					'HTTP_HOST'   => 'example.org',
-					'REQUEST_URI' => '/wp-admin/edit.php?trashed=1&locked=1&paged=2',
-				),
-				'expected'    => 'href="http://example.org/wp-admin/edit.php?paged=2"',
-			),
-			'with https'                          => array(
-				'server_vars' => array(
-					'HTTP_HOST'   => 'example.org',
-					'REQUEST_URI' => '/wp-admin/index.php',
-					'HTTPS'       => 'on',
-				),
-				'expected'    => 'href="https://example.org/wp-admin/index.php"',
-			),
-		);
-	}
-
-	/**
-	 * Tests wp_admin_canonical_url() when removable query args are filtered to be empty.
-	 */
-	public function test_wp_admin_canonical_url_empty_removable_args() {
-		add_filter( 'removable_query_args', '__return_empty_array' );
-
-		ob_start();
-		wp_admin_canonical_url();
-		$output = ob_get_clean();
-
-		remove_filter( 'removable_query_args', '__return_empty_array' );
-
-		$this->assertEmpty( $output, 'Output should be empty when removable query args are filtered to be empty.' );
-	}
-
-	/**
-	 * Tests the wp_admin_canonical_url filter.
-	 */
-	public function test_wp_admin_canonical_url_filter() {
-		$_SERVER['HTTP_HOST']   = 'example.org';
-		$_SERVER['REQUEST_URI'] = '/wp-admin/index.php?settings-updated=true';
-
-		add_filter( 'wp_admin_canonical_url', array( $this, 'filter_canonical_url' ) );
-
-		ob_start();
-		wp_admin_canonical_url();
-		$output = ob_get_clean();
-
-		remove_filter( 'wp_admin_canonical_url', array( $this, 'filter_canonical_url' ) );
-
-		$this->assertStringContainsString( 'href="https://custom.example.org/canonical"', $output );
-	}
-
-	public function filter_canonical_url() {
-		return 'https://custom.example.org/canonical';
-	}
-}

From 28ac76c17bfa17879f5a9697e6767f335c4943c5 Mon Sep 17 00:00:00 2001
From: Paul Bearne <pbearne@git.wordpress.org>
Date: Thu, 7 May 2026 11:50:46 -0400
Subject: [PATCH 4/4] Add unit tests for wp_page_reload_on_back_button_js() in
 wp-admin/includes/misc.php

---
 .../misc/wpPageReloadOnBackButtonJs.php       | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 tests/phpunit/tests/admin/includes/misc/wpPageReloadOnBackButtonJs.php

diff --git a/tests/phpunit/tests/admin/includes/misc/wpPageReloadOnBackButtonJs.php b/tests/phpunit/tests/admin/includes/misc/wpPageReloadOnBackButtonJs.php
new file mode 100644
index 0000000000000..e97e2ffec8e47
--- /dev/null
+++ b/tests/phpunit/tests/admin/includes/misc/wpPageReloadOnBackButtonJs.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Test wp_page_reload_on_back_button_js().
+ *
+ * @group admin
+ * @group misc
+ *
+ * @covers ::wp_page_reload_on_back_button_js
+ */
+class Tests_Admin_Includes_Misc_WpPageReloadOnBackButtonJs extends WP_UnitTestCase {
+
+	/**
+	 * Tests wp_page_reload_on_back_button_js().
+	 *
+	 * @ticket 65193
+	 */
+	public function test_wp_page_reload_on_back_button_js() {
+		ob_start();
+		wp_page_reload_on_back_button_js();
+		$output = ob_get_clean();
+
+		$this->assertStringContainsString( '<script>', $output );
+		$this->assertStringContainsString( 'performance.navigation.type === 2', $output );
+		$this->assertStringContainsString( 'document.location.reload( true )', $output );
+		$this->assertStringContainsString( '</script>', $output );
+	}
+}