Ticket #47864: 47864.2.patch

src/js/_enqueues/admin/site-health.js

@@ -182 +182 @@
                                         ajaxurl,
                                         data,
                                         function( response ) {
-                                                AppendIssue( response.data );
+                                                /** This filter is documented in wp-admin/includes/class-wp-site-health.php */
+                                                AppendIssue( wp.hooks.applyFilters( 'site_status_test_result', response.data ) );
                                                 maybeRunNextAsyncTest();
                                         }
                                 );

src/wp-admin/includes/class-wp-site-health.php

@@ -96 +96 @@
                                         );
 
                                         if ( method_exists( $this, $test_function ) && is_callable( array( $this, $test_function ) ) ) {
-                                                $health_check_js_variables['site_status']['direct'][] = call_user_func( array( $this, $test_function ) );
+                                                /**
+                                                 * Filter the output of a finished Site Health test.
+                                                 *
+                                                 * @since 5.3.0
+                                                 *
+                                                 * @param array $test_result {
+                                                 *     An associated array of test result data.
+                                                 *
+                                                 *     @param string $label  A label describing the test, and is used as a header in the output.
+                                                 *     @param string $status The status of the test, which can be a value of `good`, `recommended` or `critical`.
+                                                 *     @param array  $badge {
+                                                 *         Tests are put into categories which have an associated badge shown, these can be modified and assigned here.
+                                                 *
+                                                 *         @param string $label The test label, for example `Performance`.
+                                                 *         @param string $color Default `blue`. A string representing a color to use for the label.
+                                                 *     }
+                                                 *     @param string $description A more descriptive explanation of what the test looks for, and why it is important for the end user.
+                                                 *     @param string $actions     An action to direct the user to where they can resolve the issue, if one exists.
+                                                 *     @param string $test        The name of the test being ran, used as a reference point.
+                                                 * }
+                                                 */
+                                                $health_check_js_variables['site_status']['direct'][] = apply_filters( 'site_status_test_result', call_user_func( array( $this, $test_function ) ) );
                                                 continue;
                                         }
                                 }
 
                                 if ( is_callable( $test['test'] ) ) {
-                                        $health_check_js_variables['site_status']['direct'][] = call_user_func( $test['test'] );
+                                        $health_check_js_variables['site_status']['direct'][] = apply_filters( 'site_status_test_result', call_user_func( $test['test'] ) );
                                 }
                         }