postman 接口参数化操作

最近一直忙于AI模型的准确率任务中，这种操作需要大量的数据才能计算出模型的准确率。所以这里问遇到的问题和之前数据随机参数化有点不同，之前的参数比如说用户姓名或用户身份证号，这样数据可以在postman中直接用代码随机生成，可以参考postman接口测试系列：基本操作总结，但是此处采用的是本地文件参数化，和jmeter的csv参数化比较类似。

先来看一下单个食物识别的接口信息：

https://api.ty.com/food_detect

而参数主要是

msg:西红柿鸡蛋面

响应结果如下：

[
    {
        "properties": {
            "cal_name": "鸡",
            "e_type": "food",
            "end_index": 1,
            "food_id": 6014,
            "kcal_unit_weight": 167.0,
            "name": "鸡",
            "start_index": 0,
            "time_stamp": 1567236416
        },
        "sub_properties": {
            "grams": 150.0,
            "is_default": true,
            "quantifier_id": 35,
            "quantity": 1.0,
            "unit": "盘"
        },
        "type": "Entity"
    }
]

这里断言的主要是响应结果中的cal_name和name名称一致，则响应结果正确；参考代码如下：

if(responseCode.code === 200 & responseBody !== null & responseBody.has("cal_name") ){
    // 判断是否存在 'success' 值
    tests["Body matches cal_name"] = responseBody.has("cal_name");
    var jsonData = JSON.parse(responseBody);
    //保存食物AI名称
    pm.globals.set("ai_cal_name", jsonData[0].properties.cal_name);
    pm.globals.get("ai_cal_name")
    console.log(pm.globals.get("ai_cal_name"))
    //保存食物输入名称
    pm.globals.set("ai_name", jsonData[0].properties.name);
    pm.globals.get("ai_name")
    console.log(pm.globals.get("ai_name"))
    if(pm.globals.get("ai_cal_name")===pm.globals.get("ai_name")){
        console.log("success")
    }else{
        console.log("false")    }
    tests["名称是否一致"]=pm.globals.get("ai_cal_name")===pm.globals.get("ai_name")
    //postman.setGlobalVariable("bk_id",jsonData.id);
    tests[`[INFO] Request params: ${JSON.stringify(request.id)}`] = true;
    //tests["have result "]=jsonData.hasOwnProperty("error")!==true;
    //tests["have cal_name "]=jsonData.hasOwnProperty("cal_name")===true;
    tests[`[INFO] Response timeout: ${responseTime}`] = responseTime < 6000;
}else{
    //接口请求失败
    tests["Waring：Request Failed. Please Fix!"] = false;
}

单独一个食物，接口测试就这样操作完成了，但是如果需要N个食物，那么该如何操作呢？所以这里就用到了类似jmeter中的csv的参数化的方式，可以直接把需要的食物名称保存在本地文件中，格式如下

[
{"msg":"干煸四季豆"},
{"msg":"红油蒜泥肘花"},
{"msg":"铁板豆腐"},
{"msg":"口水猪肝"},
{"msg":"魔芋鸭子"},
{"msg":"麻辣鱼"},
{"msg":"魔芋烧鸭"},
{"msg":"鱼香杏鲍菇"},
{"msg":"重庆豆花鱼"},
{"msg":"麻婆豆腐"},
{"msg":"四川泡菜鱼"},
{"msg":"四川烧白"},
{"msg":"姜爆鸭子"},
{"msg":"麻辣冷吃兔"},
{"msg":"香辣豉香干锅花菜"},
{"msg":"口水鸡"},
{"msg":"重庆酸菜鱼"},
{"msg":"豆花鸡"},
{"msg":"什锦凤爪"},
{"msg":"海鲜粉丝煲"},
{"msg":"金针菇培根卷"},
{"msg":"糖醋里脊"},
{"msg":"糖醋荷包蛋"},
{"msg":"椒麻鸡"},
{"msg":"芝麻酱秋葵"},
{"msg":"干锅辣子鸡"},
{"msg":"清蒸多宝鱼"},
{"msg":"丝瓜木耳炒鸡蛋"},
{"msg":"土豆炖大排"},
{"msg":"肉末番茄豆腐"},
{"msg":"豇豆炒肉丝"},
{"msg":"拔丝地瓜"},
{"msg":"红烧茄子"},
{"msg":"香辣土豆丝"},
{"msg":"鸡丝青瓜凉面"},
{"msg":"白灼秋葵"},
{"msg":"土豆红烧肉"},
{"msg":"三文鱼南瓜米粉"},
{"msg":"宫保鸡丁"},
{"msg":"可乐鸡翅"},
{"msg":"五香毛豆"},
{"msg":"肉丝焖面"},
{"msg":"剁椒鱼头"},
{"msg":"蒜香香菇"},
{"msg":"芙蓉虾仁"},
{"msg":"白灼牛肉"},
{"msg":"白切鸡"},
{"msg":"腊肠煲仔饭"},
{"msg":"鸡肉河粉"},
{"msg":"椰子炖鸡"},
{"msg":"炒黄豆芽"},
{"msg":"白灼虾"},
{"msg":"三蔬超意大利面"},
{"msg":"蒸酿苦瓜"},
{"msg":"韭菜炒鸡蛋"},
{"msg":"土豆炖大白菜"},
{"msg":"麻辣鸡腿"},
{"msg":"山楂糖葫芦"},
{"msg":"冷面"},
{"msg":"茄子炖豆角"},
{"msg":"地三鲜"},
{"msg":"炸酱面"},
{"msg":"西红柿炖羊排"},
{"msg":"烧饼"},
{"msg":"五花肉炖四季豆"},
{"msg":"酸辣土豆丝"},
{"msg":"蚝油排骨"},
{"msg":"香菇土豆炖鸡腿"},
{"msg":"酸菜猪肉饺子"},
{"msg":"蜂蜜麻花"},
{"msg":"四喜丸子"},
{"msg":"小鸡炖蘑菇"},
{"msg":"锅包肉"},
{"msg":"红烧肉"},
{"msg":"猪肉炖粉条"},
{"msg":"水晶鲑鱼"},
{"msg":"白豆腐"},
{"msg":"红烧鹿肉"},
{"msg":"五香酱牛肉"},
{"msg":"糖醋苦瓜"},
{"msg":"西红柿焖牛肉"},
{"msg":"火腿白菜"}
]