完善保险端前后端和养殖端小程序

backend/simple-test.js

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+// 简化的测试脚本
+console.log('开始测试预警检测逻辑...');
+
+// 模拟前端判断函数
+function determineAlertType(record) {
+  const alerts = []
+  
+  // 检查电量预警
+  if (record.battery !== undefined && record.battery !== null && record.battery < 20) {
+    alerts.push('battery')
+  }
+  
+  // 检查脱落预警 (bandge_status为0)
+  if (record.bandge_status !== undefined && record.bandge_status !== null && record.bandge_status === 0) {
+    alerts.push('wear')
+  }
+  
+  // 检查离线预警 (is_connect为0)
+  if (record.is_connect !== undefined && record.is_connect !== null && record.is_connect === 0) {
+    alerts.push('offline')
+  }
+  
+  // 检查温度预警
+  if (record.temperature !== undefined && record.temperature !== null) {
+    if (record.temperature < 20) {
+      alerts.push('temperature_low')
+    } else if (record.temperature > 40) {
+      alerts.push('temperature_high')
+    }
+  }
+  
+  // 检查运动异常预警 (steps - y_steps为0)
+  if (record.steps !== undefined && record.y_steps !== undefined && 
+      record.steps !== null && record.y_steps !== null) {
+    const movementDiff = record.steps - record.y_steps
+    if (movementDiff === 0) {
+      alerts.push('movement')
+    }
+  }
+  
+  // 返回第一个预警类型，如果没有预警则返回null
+  return alerts.length > 0 ? alerts[0] : null
+}
+
+// 测试用例
+const testCases = [
+  {
+    name: '正常设备',
+    data: { battery: 85, temperature: 25, is_connect: 1, bandge_status: 1, steps: 1000, y_steps: 500 },
+    expected: null
+  },
+  {
+    name: '低电量预警',
+    data: { battery: 15, temperature: 25, is_connect: 1, bandge_status: 1, steps: 1000, y_steps: 500 },
+    expected: 'battery'
+  },
+  {
+    name: '离线预警',
+    data: { battery: 85, temperature: 25, is_connect: 0, bandge_status: 1, steps: 1000, y_steps: 500 },
+    expected: 'offline'
+  }
+];
+
+// 运行测试
+testCases.forEach((testCase, index) => {
+  const result = determineAlertType(testCase.data);
+  const success = result === testCase.expected;
+  console.log(`测试 ${index + 1}: ${testCase.name} - ${success ? '✅ 通过' : '❌ 失败'}`);
+  console.log(`  预期: ${testCase.expected}, 实际: ${result}`);
+});
+
+console.log('测试完成！');