Consolidate PHPUnit tests into tests/phpunit directory

Move test-admin.php and test-core.php from tests/ to tests/phpunit/
to match phpunit.xml configuration which only scans tests/phpunit/.

This fixes PHPUnit test discovery issues where tests were being
skipped because they were in the wrong directory.

All test files now in: tests/phpunit/
- test-admin.php
- test-core.php
- test-multisite.php
- bootstrap.php

🤖 Generated with [Qoder][https://qoder.com]

tests/phpunit/test-admin.php

@@ -0,0 +1,146 @@
+<?php
+/**
+ * Class AdminTest
+ *
+ * @package WPALLSTARS\PluginStarterTemplate
+ */
+
+use WPALLSTARS\PluginStarterTemplate\Admin\Admin;
+use WPALLSTARS\PluginStarterTemplate\Core;
+
+/**
+ * Admin test case.
+ */
+class AdminTest extends \WP_Mock\Tools\TestCase {
+
+    /**
+     * Test instance
+     *
+     * @var Admin
+     */
+    private $admin;
+
+    /**
+     * Core mock
+     *
+     * @var Core
+     */
+    private $core;
+
+    /**
+     * Set up the test environment.
+     */
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        // Set up mocks
+        WP_Mock::setUp();
+
+        // Mock the Core class dependency using Mockery.
+        $this->core = \Mockery::mock( '\WPALLSTARS\PluginStarterTemplate\Core' );
+        // Add expectation for get_plugin_version BEFORE Admin is instantiated.
+        $this->core->shouldReceive( 'get_plugin_version' )->andReturn( '1.0.0' );
+
+        // Expect the action hook to be added BEFORE Admin is instantiated.
+        \WP_Mock::expectActionAdded( 'admin_enqueue_scripts', array( \Mockery::any(), 'enqueue_admin_assets' ) );
+
+        // Instantiate the Admin class (this triggers the constructor and add_hooks).
+        $this->admin = new Admin( $this->core );
+    }
+
+    /**
+     * Tear down test environment
+     */
+    public function tearDown(): void {
+        WP_Mock::tearDown();
+        parent::tearDown();
+    }
+
+    /**
+     * Test constructor
+     */
+    public function test_constructor() {
+        // Verify that the constructor initializes hooks
+        $this->assertInstanceOf(Admin::class, $this->admin);
+    }
+
+    /**
+     * Test the enqueue_admin_assets method.
+     */
+    public function test_enqueue_admin_assets(): void
+    {
+        // Define the PHPUNIT_RUNNING constant
+        if ( ! defined( 'PHPUNIT_RUNNING' ) ) {
+            define( 'PHPUNIT_RUNNING', true );
+        }
+
+        // Set up the superglobal for the test
+        $_GET['page'] = 'wp_plugin_starter_template_settings';
+
+        // Mock wp_unslash function
+        WP_Mock::userFunction('wp_unslash', [
+            'args' => ['wp_plugin_starter_template_settings'],
+            'return' => 'wp_plugin_starter_template_settings',
+        ]);
+
+        // Mock WordPress functions used in the method
+        WP_Mock::userFunction('plugin_dir_url', [
+            'return' => 'http://example.com/wp-content/plugins/wp-plugin-starter-template/includes/Admin/',
+        ]);
+
+        // Mock wp_enqueue_style
+        WP_Mock::userFunction('wp_enqueue_style', [
+            'times' => 1,
+            'args' => [
+                'wpst-admin-styles',
+                'http://example.com/wp-content/plugins/wp-plugin-starter-template/includes/Admin/../../admin/css/admin-styles.css',
+                [],
+                '1.0.0',
+            ],
+        ]);
+
+        // Mock wp_enqueue_script
+        WP_Mock::userFunction('wp_enqueue_script', [
+            'times' => 1,
+            'args' => [
+                'wpst-admin-script',
+                'http://example.com/wp-content/plugins/wp-plugin-starter-template/includes/Admin/../../admin/js/admin-scripts.js',
+                ['jquery'],
+                '1.0.0',
+                true,
+            ],
+        ]);
+
+        // Mock admin_url
+        WP_Mock::userFunction('admin_url', [
+            'args' => ['admin-ajax.php'],
+            'return' => 'http://example.com/wp-admin/admin-ajax.php',
+        ]);
+
+        // Mock wp_create_nonce
+        WP_Mock::userFunction('wp_create_nonce', [
+            'args' => ['wpst_admin_nonce'],
+            'return' => 'test_nonce_123',
+        ]);
+
+        // Mock wp_localize_script
+        WP_Mock::userFunction('wp_localize_script', [
+            'times' => 1,
+            'args' => [
+                'wpst-admin-script',
+                'wpst_admin_data',
+                [
+                    'ajax_url' => 'http://example.com/wp-admin/admin-ajax.php',
+                    'nonce' => 'test_nonce_123',
+                ],
+            ],
+        ]);
+
+        // Call the method
+        $this->admin->enqueue_admin_assets();
+
+        // If we get here without exceptions, the test passes
+        $this->assertTrue(true);
+    }
+}