@@ -67,6 +67,7 @@
     * New: Add tests to verify filtered values output nothing when empty
     * New: Add test to check that the appropriate number of framework strings are translatable
     * Change: In bootstrap, add backcompat for PHPUnit pre-v6.0
+    * Fix: Update tests to handle deprecation of core's `print_inline_script()`
 * Change: Update copyright date (2025)
 * Change: Reduce number of tags defined in readme.txt
 
 
@@ -659,27 +659,42 @@ public function test_add_codemirror_adds_scripts() {
 		$this->fake_current_screen();
 		$this->obj->add_codemirror();
 
-		$expected = 'jQuery\.extend\( wp\.codeEditor\.defaultSettings, {"codemirror":.+wp\.codeEditor\.initialize\( "css".+\);';
+		$expected = 'jQuery\.extend\( wp\.codeEditor\.defaultSettings, {"codemirror":';
 
-		$this->expectOutputRegex( '~' . $expected . '~ims', wp_scripts()->print_inline_script( 'code-editor' ) );
+		if ( method_exists( 'WP_Scripts', 'get_inline_script_data' ) ) {
+			$this->assertMatchesRegularExpression( '~' . $expected . '~ims', wp_scripts()->get_inline_script_data( 'code-editor' ) );
+		} else {
+			// Pre WP-6.3
+			$this->expectOutputRegex( '~' . $expected . '~ims', wp_scripts()->print_inline_script( 'code-editor' ) );
+		}
 	}
 
 	public function test_add_codemirror_does_not_add_scripts_on_other_screen_ids() {
 		$this->fake_current_screen();
 		set_current_screen( 'another' );
 		$this->obj->add_codemirror();
 
-		$inline_script = wp_scripts()->print_inline_script( 'code-editor', 'after', false );
+		if ( method_exists( 'WP_Scripts', 'get_inline_script_data' ) ) {
+			$inline_script = wp_scripts()->get_inline_script_data( 'code-editor' );
+		} else {
+			// Pre WP-6.3
+			$inline_script = wp_scripts()->print_inline_script( 'code-editor', 'after', false );
+		}
 
-		$this->assertEquals( '', $inline_script );
+		$this->assertEmpty( $inline_script );
 	}
 
 	public function test_add_codemirror_does_not_add_scripts_if_code_editor_not_registered() {
 		$this->fake_current_screen();
 		wp_deregister_script( 'code-editor' );
 		$this->obj->add_codemirror();
 
-		$inline_script = wp_scripts()->print_inline_script( 'code-editor', 'after', false );
+		if ( method_exists( 'WP_Scripts', 'get_inline_script_data' ) ) {
+			$inline_script = wp_scripts()->get_inline_script_data( 'code-editor' );
+		} else {
+			// Pre WP-6.3
+			$inline_script = wp_scripts()->print_inline_script( 'code-editor', 'after', false );
+		}
 
 		$this->assertEmpty( $inline_script );
 	}