+ [misc] Add unit tests for systemZen::getCpuUsage() method

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

module/system/test/lib/zen.class.php

@@ -0,0 +1,24 @@
+<?php
+declare(strict_types = 1);
+
+require_once dirname(__FILE__, 5) . '/test/lib/test.class.php';
+
+class systemZenTest extends baseTest
+{
+    protected $moduleName = 'system';
+    protected $className  = 'zen';
+
+    /**
+     * Test getCpuUsage method.
+     *
+     * @param  object $metrics
+     * @access public
+     * @return mixed
+     */
+    public function getCpuUsageTest(object $metrics)
+    {
+        $result = $this->invokeArgs('getCpuUsage', [$metrics]);
+        if(dao::isError()) return dao::getError();
+        return $result;
+    }
+}

module/system/test/zen/getcpuusage.php

@@ -0,0 +1,54 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 systemZen::getCpuUsage();
+timeout=0
+cid=0
+
+- 执行systemTest模块的getCpuUsageTest方法，参数是$metrics1 属性color @gray
+- 执行systemTest模块的getCpuUsageTest方法，参数是$metrics2 属性color @var(--color-secondary-500)
+- 执行systemTest模块的getCpuUsageTest方法，参数是$metrics3 属性color @var(--color-warning-500)
+- 执行systemTest模块的getCpuUsageTest方法，参数是$metrics4 属性color @var(--color-important-500)
+- 执行systemTest模块的getCpuUsageTest方法，参数是$metrics5 属性color @var(--color-danger-500)
+
+*/
+
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/zen.class.php';
+
+su('admin');
+
+$systemTest = new systemZenTest();
+
+$metrics1 = new stdClass();
+$metrics1->rate = 0;
+$metrics1->usage = 0;
+$metrics1->capacity = 100;
+
+$metrics2 = new stdClass();
+$metrics2->rate = 30;
+$metrics2->usage = 30;
+$metrics2->capacity = 100;
+
+$metrics3 = new stdClass();
+$metrics3->rate = 60;
+$metrics3->usage = 60;
+$metrics3->capacity = 100;
+
+$metrics4 = new stdClass();
+$metrics4->rate = 75;
+$metrics4->usage = 75;
+$metrics4->capacity = 100;
+
+$metrics5 = new stdClass();
+$metrics5->rate = 90;
+$metrics5->usage = 90;
+$metrics5->capacity = 100;
+
+r($systemTest->getCpuUsageTest($metrics1)) && p('color') && e('gray');
+r($systemTest->getCpuUsageTest($metrics2)) && p('color') && e('var(--color-secondary-500)');
+r($systemTest->getCpuUsageTest($metrics3)) && p('color') && e('var(--color-warning-500)');
+r($systemTest->getCpuUsageTest($metrics4)) && p('color') && e('var(--color-important-500)');
+r($systemTest->getCpuUsageTest($metrics5)) && p('color') && e('var(--color-danger-500)');