Fix WordPress Playground tests: update Cypress test URL, improve blueprints, enhance documentation

.wiki/Testing.md

@@ -6,6 +6,10 @@ This document explains how to use the testing framework for our plugin.
 
 Our testing framework uses:
 
+See also:
+* [.wiki/Architecture-Overview.md](Architecture-Overview.md) – high-level design
+* [.wiki/Multisite-Development.md](Multisite-Development.md) – deeper multisite guidance
+
 * **wp-env**: For setting up WordPress environments (both single site and multisite)
 * **WordPress Playground**: For browser-based testing without Docker
 * **Cypress**: For end-to-end testing
@@ -16,6 +20,8 @@ Our testing framework uses:
 1. **Node.js**: Version 16 or higher
 2. **npm**: For package management
 3. **Docker**: For running WordPress environments with wp-env (not needed for WordPress Playground)
+4. **PHP**: Version 7.4 or higher (for future PHPUnit tests)
+5. **Composer**: For managing PHP dependencies
 
 ## Testing Approaches
 
@@ -35,6 +41,9 @@ We provide scripts to easily set up test environments:
 ```bash
 # Set up a single site environment
 npm run setup:single
+
+# You can also use the unified setup script:
+bash bin/setup-test-env.sh single
 ```
 
 This will:
@@ -48,6 +57,9 @@ This will:
 ```bash
 # Set up a multisite environment
 npm run setup:multisite
+
+# Or via the setup script:
+bash bin/setup-test-env.sh multisite
 ```
 
 This will:
@@ -127,6 +139,7 @@ You can serve these files locally with a simple HTTP server:
 python -m http.server 8888 --directory playground
 
 # Then open http://localhost:8888/index.html in your browser
+# Or open http://localhost:8888/test.html for a unified single/multisite switcher
 ```
 
 ## Writing Tests

cypress/e2e/playground-single-site.cy.js

@@ -2,7 +2,7 @@
 describe('WordPress Playground Single Site Tests', () => {
   beforeEach(() => {
     // Visit the WordPress Playground page
-    cy.visit('/index.html');
+    cy.visit('/');
 
     // Wait for the iframe to load
     cy.get('iframe').should('be.visible');

playground/blueprint.json

@@ -27,8 +27,14 @@
       }
     },
     {
-      "step": "wp-cli",
-      "command": "wp plugin activate plugin-toggle kadence-blocks"
+      "step": "activatePlugin",
+      "pluginName": "Plugin Toggle",
+      "pluginPath": "/wordpress/wp-content/plugins/plugin-toggle"
+    },
+    {
+      "step": "activatePlugin",
+      "pluginName": "Kadence Blocks",
+      "pluginPath": "/wordpress/wp-content/plugins/kadence-blocks"
     }
   ]
 }

playground/multisite-blueprint.json

@@ -35,7 +35,11 @@
     },
     {
       "step": "wp-cli",
-      "command": "wp plugin activate plugin-toggle kadence-blocks --network"
+      "command": "wp plugin activate plugin-toggle --network"
+    },
+    {
+      "step": "wp-cli",
+      "command": "wp plugin activate kadence-blocks --network"
     }
   ]
 }