From 6973cf86901af4f81693ed6b64200a574906500f Mon Sep 17 00:00:00 2001
From: Matias Benedetto <matias.benedetto@gmail.com>
Date: Tue, 3 Sep 2024 08:39:21 -0300
Subject: [PATCH] Update escaping function (#683)

* Update escaping function

* update tests

* add method specific for attributes

* update tests

* Updates to only use wp_kses_post when strings contain html

* remove wp_kses_post as escaping function

* update tests

---------

Co-authored-by: Grant Kinney <hi@grant.mk>
---
 includes/create-theme/theme-locale.php        | 40 +++++++++++--
 includes/create-theme/theme-patterns.php      |  2 +-
 tests/CbtThemeLocale/escapeAttribute.php      | 58 +++++++++++++++++++
 tests/CbtThemeLocale/escapeString.php         | 48 ---------------
 tests/CbtThemeLocale/escapeTextContent.php    | 56 ++++++++++++++++++
 .../escapeTextContentOfBlocks.php             | 10 +---
 tests/test-theme-templates.php                | 43 ++++++++++----
 7 files changed, 185 insertions(+), 72 deletions(-)
 create mode 100644 tests/CbtThemeLocale/escapeAttribute.php
 delete mode 100644 tests/CbtThemeLocale/escapeString.php
 create mode 100644 tests/CbtThemeLocale/escapeTextContent.php

diff --git a/includes/create-theme/theme-locale.php b/includes/create-theme/theme-locale.php
index 343b855e..783d8715 100644
--- a/includes/create-theme/theme-locale.php
+++ b/includes/create-theme/theme-locale.php
@@ -5,26 +5,58 @@
 class CBT_Theme_Locale {
 
 	/**
-	 * Escape a string for localization.
+	 * Escape text for localization.
 	 *
 	 * @param string $string The string to escape.
 	 * @return string The escaped string.
 	 */
-	public static function escape_string( $string ) {
+	private static function escape_text_content( $string ) {
 		// Avoid escaping if the text is not a string.
 		if ( ! is_string( $string ) ) {
 			return $string;
 		}
 
+		// Check if string is empty.
+		if ( '' === $string ) {
+			return $string;
+		}
+
 		// Check if the text is already escaped.
 		if ( str_starts_with( $string, '<?php' ) ) {
 			return $string;
 		}
 
 		$string = addcslashes( $string, "'" );
+
 		return "<?php esc_html_e('" . $string . "', '" . wp_get_theme()->get( 'TextDomain' ) . "');?>";
 	}
 
+	/**
+	 * Escape an html element attribute for localization.
+	 *
+	 * @param string $string The string to escape.
+	 * @return string The escaped string.
+	 */
+	private static function escape_attribute( $string ) {
+		// Avoid escaping if the text is not a string.
+		if ( ! is_string( $string ) ) {
+			return $string;
+		}
+
+		// Check if string is empty.
+		if ( '' === $string ) {
+			return $string;
+		}
+
+		// Check if the text is already escaped.
+		if ( str_starts_with( $string, '<?php' ) ) {
+			return $string;
+		}
+
+		$string = addcslashes( $string, "'" );
+		return "<?php esc_attr_e('" . $string . "', '" . wp_get_theme()->get( 'TextDomain' ) . "');?>";
+	}
+
 	/**
 	 * Get a replacement pattern for escaping the text from the html content of a block.
 	 *
@@ -109,7 +141,7 @@ public static function escape_text_content_of_blocks( $blocks ) {
 						return preg_replace_callback(
 							$pattern,
 							function( $matches ) {
-								return $matches[1] . self::escape_string( $matches[2] ) . $matches[3];
+								return $matches[1] . self::escape_text_content( $matches[2] ) . $matches[3];
 							},
 							$content
 						);
@@ -125,7 +157,7 @@ function( $matches ) {
 						return preg_replace_callback(
 							$pattern,
 							function( $matches ) {
-								return 'alt="' . self::escape_string( $matches[1] ) . '"';
+								return 'alt="' . self::escape_attribute( $matches[1] ) . '"';
 							},
 							$content
 						);
diff --git a/includes/create-theme/theme-patterns.php b/includes/create-theme/theme-patterns.php
index e7de4890..23224c2d 100644
--- a/includes/create-theme/theme-patterns.php
+++ b/includes/create-theme/theme-patterns.php
@@ -38,7 +38,7 @@ public static function escape_alt_for_pattern( $html ) {
 	public static function escape_text_for_pattern( $text ) {
 		if ( $text && trim( $text ) !== '' ) {
 			$escaped_text = addslashes( $text );
-			return "<?php echo esc_attr_e( '" . $escaped_text . "', '" . wp_get_theme()->get( 'Name' ) . "' ); ?>";
+			return "<?php esc_attr_e('" . $escaped_text . "', '" . wp_get_theme()->get( 'Name' ) . "');?>";
 		}
 	}
 
diff --git a/tests/CbtThemeLocale/escapeAttribute.php b/tests/CbtThemeLocale/escapeAttribute.php
new file mode 100644
index 00000000..9f511d06
--- /dev/null
+++ b/tests/CbtThemeLocale/escapeAttribute.php
@@ -0,0 +1,58 @@
+<?php
+require_once __DIR__ . '/base.php';
+
+/**
+ * Tests for the CBT_Theme_Locale::escape_attribute method.
+ *
+ * @package Create_Block_Theme
+ * @covers CBT_Theme_Locale::escape_attribute
+ * @group locale
+ */
+class CBT_Theme_Locale_EscapeAttribute extends CBT_Theme_Locale_UnitTestCase {
+
+	protected function call_private_method( $method_name, $args = array() ) {
+		$reflection = new ReflectionClass( 'CBT_Theme_Locale' );
+		$method     = $reflection->getMethod( $method_name );
+		$method->setAccessible( true );
+		return $method->invokeArgs( null, $args );
+	}
+
+	public function test_escape_attribute() {
+		$string          = 'This is a test attribute.';
+		$escaped_string  = $this->call_private_method( 'escape_attribute', array( $string ) );
+		$expected_string = "<?php esc_attr_e('This is a test attribute.', '" . wp_get_theme()->get( 'TextDomain' ) . "');?>";
+		$this->assertEquals( $expected_string, $escaped_string );
+	}
+
+	public function test_escape_attribute_with_single_quote() {
+		$string          = "This is a test attribute with a single quote '";
+		$escaped_string  = $this->call_private_method( 'escape_attribute', array( $string ) );
+		$expected_string = "<?php esc_attr_e('This is a test attribute with a single quote \\'', '" . wp_get_theme()->get( 'TextDomain' ) . "');?>";
+		$this->assertEquals( $expected_string, $escaped_string );
+	}
+
+	public function test_escape_attribute_with_double_quote() {
+		$string          = 'This is a test attribute with a double quote "';
+		$escaped_string  = $this->call_private_method( 'escape_attribute', array( $string ) );
+		$expected_string = "<?php esc_attr_e('This is a test attribute with a double quote \"', '" . wp_get_theme()->get( 'TextDomain' ) . "');?>";
+		$this->assertEquals( $expected_string, $escaped_string );
+	}
+
+	public function test_escape_attribute_with_empty_string() {
+		$string         = '';
+		$escaped_string = $this->call_private_method( 'escape_attribute', array( $string ) );
+		$this->assertEquals( $string, $escaped_string );
+	}
+
+	public function test_escape_attribute_with_already_escaped_string() {
+		$string         = "<?php esc_attr_e('This is already escaped.', '" . wp_get_theme()->get( 'TextDomain' ) . "');?>";
+		$escaped_string = $this->call_private_method( 'escape_attribute', array( $string ) );
+		$this->assertEquals( $string, $escaped_string );
+	}
+
+	public function test_escape_attribute_with_non_string() {
+		$string         = null;
+		$escaped_string = $this->call_private_method( 'escape_attribute', array( $string ) );
+		$this->assertEquals( $string, $escaped_string );
+	}
+}
diff --git a/tests/CbtThemeLocale/escapeString.php b/tests/CbtThemeLocale/escapeString.php
deleted file mode 100644
index b9ff7361..00000000
--- a/tests/CbtThemeLocale/escapeString.php
+++ /dev/null
@@ -1,48 +0,0 @@
-<?php
-
-require_once __DIR__ . '/base.php';
-
-/**
- * Tests for the CBT_Theme_Locale::escape_string method.
- *
- * @package Create_Block_Theme
- * @covers CBT_Theme_Locale::escape_string
- * @group locale
- */
-class CBT_Theme_Locale_EscapeString extends CBT_Theme_Locale_UnitTestCase {
-	public function test_escape_string() {
-		$string         = 'This is a test text.';
-		$escaped_string = CBT_Theme_Locale::escape_string( $string );
-		$this->assertEquals( "<?php esc_html_e('This is a test text.', 'test-locale-theme');?>", $escaped_string );
-	}
-
-	public function test_escape_string_with_single_quote() {
-		$string         = "This is a test text with a single quote '";
-		$escaped_string = CBT_Theme_Locale::escape_string( $string );
-		$this->assertEquals( "<?php esc_html_e('This is a test text with a single quote \\'', 'test-locale-theme');?>", $escaped_string );
-	}
-
-	public function test_escape_string_with_double_quote() {
-		$string         = 'This is a test text with a double quote "';
-		$escaped_string = CBT_Theme_Locale::escape_string( $string );
-		$this->assertEquals( "<?php esc_html_e('This is a test text with a double quote \"', 'test-locale-theme');?>", $escaped_string );
-	}
-
-	public function test_escape_string_with_html() {
-		$string         = '<p>This is a test text with HTML.</p>';
-		$escaped_string = CBT_Theme_Locale::escape_string( $string );
-		$this->assertEquals( "<?php esc_html_e('<p>This is a test text with HTML.</p>', 'test-locale-theme');?>", $escaped_string );
-	}
-
-	public function test_escape_string_with_already_escaped_string() {
-		$string         = "<?php esc_html_e('This is a test text.', 'test-locale-theme');?>";
-		$escaped_string = CBT_Theme_Locale::escape_string( $string );
-		$this->assertEquals( $string, $escaped_string );
-	}
-
-	public function test_escape_string_with_non_string() {
-		$string         = null;
-		$escaped_string = CBT_Theme_Locale::escape_string( $string );
-		$this->assertEquals( $string, $escaped_string );
-	}
-}
diff --git a/tests/CbtThemeLocale/escapeTextContent.php b/tests/CbtThemeLocale/escapeTextContent.php
new file mode 100644
index 00000000..32609243
--- /dev/null
+++ b/tests/CbtThemeLocale/escapeTextContent.php
@@ -0,0 +1,56 @@
+<?php
+
+require_once __DIR__ . '/base.php';
+
+/**
+ * Tests for the CBT_Theme_Locale::escape_text_content method.
+ *
+ * @package Create_Block_Theme
+ * @covers CBT_Theme_Locale::escape_text_content
+ * @group locale
+ */
+class CBT_Theme_Locale_EscapeTextContent extends CBT_Theme_Locale_UnitTestCase {
+
+	protected function call_private_method( $method_name, $args = array() ) {
+		$reflection = new ReflectionClass( 'CBT_Theme_Locale' );
+		$method     = $reflection->getMethod( $method_name );
+		$method->setAccessible( true );
+		return $method->invokeArgs( null, $args );
+	}
+
+	public function test_escape_text_content() {
+		$string         = 'This is a test text.';
+		$escaped_string = $this->call_private_method( 'escape_text_content', array( $string ) );
+		$this->assertEquals( "<?php esc_html_e('This is a test text.', 'test-locale-theme');?>", $escaped_string );
+	}
+
+	public function test_escape_text_content_with_single_quote() {
+		$string         = "This is a test text with a single quote '";
+		$escaped_string = $this->call_private_method( 'escape_text_content', array( $string ) );
+		$this->assertEquals( "<?php esc_html_e('This is a test text with a single quote \\'', 'test-locale-theme');?>", $escaped_string );
+	}
+
+	public function test_escape_text_content_with_double_quote() {
+		$string         = 'This is a test text with a double quote "';
+		$escaped_string = $this->call_private_method( 'escape_text_content', array( $string ) );
+		$this->assertEquals( "<?php esc_html_e('This is a test text with a double quote \"', 'test-locale-theme');?>", $escaped_string );
+	}
+
+	public function test_escape_text_content_with_html() {
+		$string         = '<p>This is a test text with HTML.</p>';
+		$escaped_string = $this->call_private_method( 'escape_text_content', array( $string ) );
+		$this->assertEquals( "<?php esc_html_e('<p>This is a test text with HTML.</p>', 'test-locale-theme');?>", $escaped_string );
+	}
+
+	public function test_escape_text_content_with_already_escaped_string() {
+		$string         = "<?php esc_html_e('This is a test text.', 'test-locale-theme');?>";
+		$escaped_string = $this->call_private_method( 'escape_text_content', array( $string ) );
+		$this->assertEquals( $string, $escaped_string );
+	}
+
+	public function test_escape_text_content_with_non_string() {
+		$string         = null;
+		$escaped_string = $this->call_private_method( 'escape_text_content', array( $string ) );
+		$this->assertEquals( $string, $escaped_string );
+	}
+}
diff --git a/tests/CbtThemeLocale/escapeTextContentOfBlocks.php b/tests/CbtThemeLocale/escapeTextContentOfBlocks.php
index 7df7b62f..2fee4adf 100644
--- a/tests/CbtThemeLocale/escapeTextContentOfBlocks.php
+++ b/tests/CbtThemeLocale/escapeTextContentOfBlocks.php
@@ -130,7 +130,7 @@ public function data_test_escape_text_content_of_blocks() {
                     <!-- /wp:image -->',
 				'expected_markup' =>
 					'<!-- wp:image {"sizeSlug":"large","linkDestination":"none","className":"is-style-rounded"} -->
-                    <figure class="wp-block-image size-large is-style-rounded"><img src="http://localhost/wp1/wp-content/themes/twentytwentyfour/assets/images/windows.webp" alt="<?php esc_html_e(\'Windows of a building in Nuremberg, Germany\', \'test-locale-theme\');?>"/></figure>
+                    <figure class="wp-block-image size-large is-style-rounded"><img src="http://localhost/wp1/wp-content/themes/twentytwentyfour/assets/images/windows.webp" alt="<?php esc_attr_e(\'Windows of a building in Nuremberg, Germany\', \'test-locale-theme\');?>"/></figure>
                     <!-- /wp:image -->',
 			),
 
@@ -143,7 +143,7 @@ public function data_test_escape_text_content_of_blocks() {
                     <!-- /wp:cover -->',
 				'expected_markup' =>
 					'<!-- wp:cover {"url":"http://localhost/wp1/wp-content/uploads/2024/05/image.jpeg","id":39,"alt":"Alternative text for cover image","dimRatio":50,"customOverlayColor":"#1d2b2f","layout":{"type":"constrained"}} -->
-                    <div class="wp-block-cover"><span aria-hidden="true" class="wp-block-cover__background has-background-dim" style="background-color:#1d2b2f"></span><img class="wp-block-cover__image-background wp-image-39" alt="<?php esc_html_e(\'Alternative text for cover image\', \'test-locale-theme\');?>" src="http://localhost/wp1/wp-content/uploads/2024/05/image.jpeg" data-object-fit="cover"/><div class="wp-block-cover__inner-container"><!-- wp:paragraph {"align":"center","placeholder":"Write title…","fontSize":"large"} -->
+                    <div class="wp-block-cover"><span aria-hidden="true" class="wp-block-cover__background has-background-dim" style="background-color:#1d2b2f"></span><img class="wp-block-cover__image-background wp-image-39" alt="<?php esc_attr_e(\'Alternative text for cover image\', \'test-locale-theme\');?>" src="http://localhost/wp1/wp-content/uploads/2024/05/image.jpeg" data-object-fit="cover"/><div class="wp-block-cover__inner-container"><!-- wp:paragraph {"align":"center","placeholder":"Write title…","fontSize":"large"} -->
                     <p class="has-text-align-center has-large-font-size"><?php esc_html_e(\'This is a cover caption\', \'test-locale-theme\');?></p>
                     <!-- /wp:paragraph --></div></div>
                     <!-- /wp:cover -->',
@@ -158,7 +158,7 @@ public function data_test_escape_text_content_of_blocks() {
                     <!-- /wp:media-text -->',
 				'expected_markup' =>
 					'<!-- wp:media-text {"mediaId":39,"mediaLink":"http://localhost/wp1/image/","mediaType":"image"} -->
-                    <div class="wp-block-media-text is-stacked-on-mobile"><figure class="wp-block-media-text__media"><img src="http://localhost/wp1/wp-content/uploads/2024/05/image.jpeg" alt="<?php esc_html_e(\'This is alt text\', \'test-locale-theme\');?>" class="wp-image-39 size-full"/></figure><div class="wp-block-media-text__content"><!-- wp:paragraph {"placeholder":"Content…"} -->
+                    <div class="wp-block-media-text is-stacked-on-mobile"><figure class="wp-block-media-text__media"><img src="http://localhost/wp1/wp-content/uploads/2024/05/image.jpeg" alt="<?php esc_attr_e(\'This is alt text\', \'test-locale-theme\');?>" class="wp-image-39 size-full"/></figure><div class="wp-block-media-text__content"><!-- wp:paragraph {"placeholder":"Content…"} -->
                     <p><?php esc_html_e(\'Media text content test.\', \'test-locale-theme\');?></p>
                     <!-- /wp:paragraph --></div></div>
                     <!-- /wp:media-text -->',
@@ -189,7 +189,3 @@ public function data_test_escape_text_content_of_blocks() {
 		);
 	}
 }
-
-
-
-
diff --git a/tests/test-theme-templates.php b/tests/test-theme-templates.php
index 8ed6f10b..e2842800 100644
--- a/tests/test-theme-templates.php
+++ b/tests/test-theme-templates.php
@@ -6,7 +6,7 @@
 class Test_Create_Block_Theme_Templates extends WP_UnitTestCase {
 
 	/**
-	 * Ensure that the string in a template is replaced with the appropraite PHP code
+	 * Ensure that the string in a template is replaced with the appropriate PHP code
 	 */
 	public function test_paragraphs_are_localized() {
 		$template          = new stdClass();
@@ -16,6 +16,14 @@ public function test_paragraphs_are_localized() {
 		$this->assertStringNotContainsString( '<p>This is text to localize</p>', $new_template->content );
 	}
 
+	public function test_empty_paragraphs_are_not_localized() {
+		$template          = new stdClass();
+		$template->content = '<!-- wp:paragraph --><p></p><!-- /wp:paragraph -->';
+		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
+		$this->assertStringContainsString( '<p></p>', $new_template->content );
+		$this->assertStringNotContainsString( 'esc_html_e', $new_template->content );
+	}
+
 	/**
 	 * Ensure that escape_text_in_template is not called when the localizeText flag is set to false
 	 */
@@ -37,7 +45,7 @@ public function test_paragraphs_in_groups_are_localized() {
 			</div>
 			<!-- /wp:group -->';
 		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
-		$this->assertStringContainsString( 'This is text to localize', $new_template->content );
+		$this->assertStringContainsString( "<?php esc_html_e('This is text to localize', '');?>", $new_template->content );
 		$this->assertStringNotContainsString( '<p>This is text to localize</p>', $new_template->content );
 	}
 
@@ -49,7 +57,7 @@ public function test_buttons_are_localized() {
 					</div>
 				<!-- /wp:button -->';
 		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
-		$this->assertStringContainsString( 'This is text to localize', $new_template->content );
+		$this->assertStringContainsString( "<?php esc_html_e('This is text to localize', '');?>", $new_template->content );
 		$this->assertStringNotContainsString( '<a class="wp-block-button__link wp-element-button">This is text to localize</a>', $new_template->content );
 	}
 
@@ -61,7 +69,7 @@ public function test_headings_are_localized() {
 			<!-- /wp:heading -->
 		';
 		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
-		$this->assertStringContainsString( 'This is a heading to localize.', $new_template->content );
+		$this->assertStringContainsString( "<?php esc_html_e('This is a heading to localize.', '');?>", $new_template->content );
 		$this->assertStringNotContainsString( '<h2 class="wp-block-heading">This is a heading to localize.</h2>', $new_template->content );
 	}
 
@@ -135,8 +143,8 @@ public function test_properly_encode_quotes_and_doublequotes() {
 		<!-- /wp:heading -->';
 		$escaped_template  = CBT_Theme_Templates::escape_text_in_template( $template );
 
-		/* That looks like a mess, but what it should look like for REAL is <?php echo esc_attr_e( '"This" is a \'test\'', '' ); ?> */
-		$this->assertStringContainsString( '<?php esc_html_e(\'"This" is a \\\'test\\\'\', \'\');?>', $escaped_template->content );
+		/* That looks like a mess, but what it should look like for REAL is <?php esc_html_e('"This" is a \'test\'', '');?> */
+		$this->assertStringContainsString( "<?php esc_html_e('\"This\" is a \\'test\\'', '');?>", $escaped_template->content );
 	}
 
 	public function test_properly_encode_lessthan_and_greaterthan() {
@@ -146,7 +154,7 @@ public function test_properly_encode_lessthan_and_greaterthan() {
 		<!-- /wp:heading -->';
 		$escaped_template  = CBT_Theme_Templates::escape_text_in_template( $template );
 
-		$this->assertStringContainsString( '<?php esc_html_e(\'&lt;This> is a &lt;test&gt;\', \'\');?>', $escaped_template->content );
+		$this->assertStringContainsString( "<?php esc_html_e('&lt;This> is a &lt;test&gt;', '');?>", $escaped_template->content );
 	}
 
 	public function test_properly_encode_html_markup() {
@@ -156,7 +164,18 @@ public function test_properly_encode_html_markup() {
 			<!-- /wp:paragraph -->';
 		$escaped_template  = CBT_Theme_Templates::escape_text_in_template( $template );
 
-		$this->assertStringContainsString( '<?php esc_html_e(\'<strong>Bold</strong> text has feelings &lt;&gt; TOO\', \'\');?>', $escaped_template->content );
+		$this->assertStringContainsString( "<?php esc_html_e('<strong>Bold</strong> text has feelings &lt;&gt; TOO', '');?>", $escaped_template->content );
+	}
+
+	public function test_empty_alt_text_is_not_localized() {
+		$template          = new stdClass();
+		$template->content = '
+			<!-- wp:image -->
+			<figure class="wp-block-image"><img src="http://example.com/file.jpg" alt="" /></figure>
+			<!-- /wp:image -->
+		';
+		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
+		$this->assertStringContainsString( 'alt=""', $new_template->content );
 	}
 
 	public function test_localize_alt_text_from_image() {
@@ -167,7 +186,7 @@ public function test_localize_alt_text_from_image() {
 			<!-- /wp:image -->
 		';
 		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
-		$this->assertStringContainsString( 'alt="<?php esc_html_e(\'This is alt text\', \'\');?>"', $new_template->content );
+		$this->assertStringContainsString( 'alt="<?php esc_attr_e(\'This is alt text\', \'\');?>"', $new_template->content );
 	}
 
 	public function test_localize_alt_text_from_cover() {
@@ -187,7 +206,7 @@ public function test_localize_alt_text_from_cover() {
 		';
 		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
 		// Check the markup attribute
-		$this->assertStringContainsString( 'alt="<?php esc_html_e(\'This is alt text\', \'\');?>"', $new_template->content );
+		$this->assertStringContainsString( 'alt="<?php esc_attr_e(\'This is alt text\', \'\');?>"', $new_template->content );
 	}
 
 	public function test_localize_quote() {
@@ -296,7 +315,7 @@ public function test_localize_media_text() {
 		<!-- /wp:media-text -->';
 		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
 		$this->assertStringContainsString( "<?php esc_html_e('Content to Localize', '');?>", $new_template->content );
-		$this->assertStringContainsString( "<?php esc_html_e('Alt Text Is Here', '');?>", $new_template->content );
+		$this->assertStringContainsString( "<?php esc_attr_e('Alt Text Is Here', '');?>", $new_template->content );
 	}
 
 	public function test_localize_cover_block_children() {
@@ -314,7 +333,7 @@ public function test_localize_cover_block_children() {
 		';
 		$new_template      = CBT_Theme_Templates::escape_text_in_template( $template );
 
-		$this->assertStringContainsString( '<p><?php esc_html_e(\'This is text to localize\', \'\');?></p>', $new_template->content );
+		$this->assertStringContainsString( "<p><?php esc_html_e('This is text to localize', '');?></p>", $new_template->content );
 	}
 
 	public function test_localize_nested_cover_block_children() {