diff --git a/phpunit/class-wp-theme-json-test.php b/phpunit/class-wp-theme-json-test.php
index e0c11766eaaae3..07bec961553c9a 100644
--- a/phpunit/class-wp-theme-json-test.php
+++ b/phpunit/class-wp-theme-json-test.php
@@ -221,12 +221,19 @@ public function test_get_stylesheet() {
 					'typography' => array(
 						'fontFamilies' => array(
 							array(
-								'slug'       => 'small',
-								'fontFamily' => '14px',
+								'name'       => 'Arial',
+								'slug'       => 'arial',
+								'fontFamily' => 'Arial, serif',
+							),
+						),
+						'fontSizes'    => array(
+							array(
+								'slug' => 'small',
+								'size' => '14px',
 							),
 							array(
-								'slug'       => 'big',
-								'fontFamily' => '41px',
+								'slug' => 'big',
+								'size' => '41px',
 							),
 						),
 					),
@@ -329,10 +336,11 @@ public function test_get_stylesheet() {
 			)
 		);
 
-		$variables = 'body{--wp--preset--color--grey: grey;--wp--preset--font-family--small: 14px;--wp--preset--font-family--big: 41px;}.wp-block-group{--wp--custom--base-font: 16;--wp--custom--line-height--small: 1.2;--wp--custom--line-height--medium: 1.4;--wp--custom--line-height--large: 1.8;}';
+		$variables = 'body{--wp--preset--color--grey: grey;--wp--preset--font-size--small: 14px;--wp--preset--font-size--big: 41px;--wp--preset--font-family--arial: Arial, serif;}.wp-block-group{--wp--custom--base-font: 16;--wp--custom--line-height--small: 1.2;--wp--custom--line-height--medium: 1.4;--wp--custom--line-height--large: 1.8;}';
 		$styles    = 'body { margin: 0;}.wp-site-blocks > .alignleft { float: left; margin-right: 2em; }.wp-site-blocks > .alignright { float: right; margin-left: 2em; }.wp-site-blocks > .aligncenter { justify-content: center; margin-left: auto; margin-right: auto; }:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flow > .alignleft{float: left;margin-inline-start: 0;margin-inline-end: 2em;}body .is-layout-flow > .alignright{float: right;margin-inline-start: 2em;margin-inline-end: 0;}body .is-layout-flow > .aligncenter{margin-left: auto !important;margin-right: auto !important;}body .is-layout-constrained > .alignleft{float: left;margin-inline-start: 0;margin-inline-end: 2em;}body .is-layout-constrained > .alignright{float: right;margin-inline-start: 2em;margin-inline-end: 0;}body .is-layout-constrained > .aligncenter{margin-left: auto !important;margin-right: auto !important;}body .is-layout-constrained > :where(:not(.alignleft):not(.alignright):not(.alignfull)){max-width: var(--wp--style--global--content-size);margin-left: auto !important;margin-right: auto !important;}body .is-layout-constrained > .alignwide{max-width: var(--wp--style--global--wide-size);}body .is-layout-flex{display: flex;}body .is-layout-flex{flex-wrap: wrap;align-items: center;}body .is-layout-flex > *{margin: 0;}body .is-layout-grid{display: grid;}body .is-layout-grid > *{margin: 0;}body{color: var(--wp--preset--color--grey);}a:where(:not(.wp-element-button)){background-color: #333;color: #111;}.wp-block-group{border-radius: 10px;min-height: 50vh;padding: 24px;}.wp-block-group a:where(:not(.wp-element-button)){color: #111;}.wp-block-heading{color: #123456;}.wp-block-heading a:where(:not(.wp-element-button)){background-color: #333;color: #111;font-size: 60px;}.wp-block-post-date{color: #123456;}.wp-block-post-date a:where(:not(.wp-element-button)){background-color: #777;color: #555;}.wp-block-post-excerpt{column-count: 2;}.wp-block-image{margin-bottom: 30px;}.wp-block-image img, .wp-block-image .wp-block-image__crop-area, .wp-block-image .components-placeholder{border-top-left-radius: 10px;border-bottom-right-radius: 1em;}';
-		$presets   = '.has-grey-color{color: var(--wp--preset--color--grey) !important;}.has-grey-background-color{background-color: var(--wp--preset--color--grey) !important;}.has-grey-border-color{border-color: var(--wp--preset--color--grey) !important;}.has-small-font-family{font-family: var(--wp--preset--font-family--small) !important;}.has-big-font-family{font-family: var(--wp--preset--font-family--big) !important;}';
-		$all       = $variables . $styles . $presets;
+		$presets   = '.has-grey-color{color: var(--wp--preset--color--grey) !important;}.has-grey-background-color{background-color: var(--wp--preset--color--grey) !important;}.has-grey-border-color{border-color: var(--wp--preset--color--grey) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-big-font-size{font-size: var(--wp--preset--font-size--big) !important;}.has-arial-font-family{font-family: var(--wp--preset--font-family--arial) !important;}';
+
+		$all = $variables . $styles . $presets;
 
 		$this->assertEquals( $all, $theme_json->get_stylesheet() );
 		$this->assertEquals( $styles, $theme_json->get_stylesheet( array( 'styles' ) ) );