最近測試中用到postman，使用後就簡單總結下常用的斷言，下面帶圖的自己最常用的，其他的沒怎麼用。
postman斷言是JavaScript語言編寫的，在postman用戶端指定區域編寫即可。
斷言會在請求傳回之後，運作，并根據斷言的pass\fail情況展現在最終測試結果中。
1.設定環境變量--Setting an environment variable
postman.setEnvironmentVariable("key", "value");
2.設定全局變量--Set a global variable
postman.setGlobalVariable("key", "value");
3.檢查響應中**string--Check if response body contains a string
tests["Body matches string"] = responseBody.has("string_you_want_to_search");
4.轉化XML格式的響應成JSON對象---Convert XML body to a JSON object
var jsonObject = xml2Json(responseBody);
5.檢查響應body中等于指定string--Check if response body is equal to a string
tests["Body is correct"] = responseBody === "response_body_string";
6.檢查JSON某字段值--Check for a JSON value
var data = JSON.parse(responseBody);
tests["Your test name"] = data.value === 100;
7.檢查Content-Type是否**在header傳回（大小寫不敏感）--Content-Type is present (Case-insensitive checking)
tests["Content-Type is present"] = postman.getResponseHeader("Content-Type"); //Note: the getResponseHeader() method returns the header value, if it exists.
8.檢查Content-Type是否**在header傳回（大小寫敏感）--Content-Type is present (Case-sensitive)
tests["Content-Type is present"] = responseHeaders.hasOwnProperty("Content-Type");
9.檢查請求耗時時間小于200ms--Response time is less than 200ms
tests["Response time is less than 200ms"] = responseTime < 200;
10.檢查Status code為200--Status code is 200
tests["Status code is 200"] = responseCode.code === 200;
11.檢查Code name**指定string--Code name contains a string
tests["Status code name has string"] = responseCode.name.has("Created");
12.檢查成功post的請求status code--Succesful POST request status code
tests["Successful POST request"] = responseCode.code === 201 || responseCode.code === 202;
13.為JSON data使用微小驗證器--Use TinyValidator for JSON data
var schema = {
"items": {
"type": "boolean"
}
};
var data1 = [true, false];
var data2 = [true, 123];
console.log(tv4.error);
tests["Valid Data1"] = tv4.validate(data1, schema);
tests["Valid Data2"] = tv4.validate(data2, schema);
Sample data files
JSON files are composed of key/value pairs