#### 断言测试实例
* * * * *
1.设置环境变量
~~~
postman.setEnvironmentVariable("key", "value");
~~~
例子： `postman.setEnvironmentVariable("url", "http://192.168.36.47/v2/api"); `
使用环境变量的格式：`{{url}}`
1.1清除环境变量
~~~
postman.clearEnvironmentVariable("variable_key");
~~~
例子：`postman.clearEnvironmentVariable("url");`
2.设置一个全局变量
~~~
postman.setGlobalVariable("key", "value");
~~~
例子：`postman.setGlobalVariable("username", "123@qq.com");`
使用全局变量格式：`{{variableName}}`
2.1清除一个全局变量
~~~
postman.clearGlobalVariable("key", "value");
~~~
例子：`postman.clearGlobalVariable("username", "123@qq.com"); `
3.检查响应体包含一个字符串
~~~
tests["Body matches string"] = responseBody.has("string_you_want_to_search");
~~~
例子：响应体包含以下字段 "path": "field is read-only",
~~~
tests["Body matches string"] = responseBody.has("field is read-only");
tests["Body matches string"] = responseBody.has("path");
~~~
4.转换XML身体JSON对象
~~~
var jsonObject = xml2Json(responseBody);
~~~
5.检查响应体等于一个字符串
~~~
tests["Body is correct"] = responseBody === "response_body_string";
~~~
6.检查一个JSON值字段
~~~
var data = JSON.parse(responseBody);
tests["Your test name"] = data.value === 100;
~~~
7.Content-Type的存在（不区分大小写检查）
~~~
tests["Content-Type is present"] = postman.getResponseHeader("Content-Type"); //Note: the getResponseHeader() method returns the header value, if it exists.
~~~
8.Content-Type的存在（区分大小写）
~~~
tests["Content-Type is present"] = responseHeaders.hasOwnProperty("Content-Type");
~~~
9.响应时间小于200ms的
~~~
tests["Response time is less than 200ms"] = responseTime < 200;
~~~
10.状态代码是
~~~
tests["Status code is 200"] = responseCode.code === 200;
tests["Status code is 404"] = responseCode.code === 404;
~~~
11.代号包含一个字符串
~~~
tests["Status code name has string"] = responseCode.name.has("Created");
~~~
例子：`Status：201 CREATED`
~~~
tests["Status code is 201"] = responseCode.code === 201;
tests["Status code name has string"] = responseCode.name.has("Created");
~~~
12.成功的POST请求的状态代码
~~~
tests["Successful POST request"] = responseCode.code === 201 || responseCode.code === 202;
~~~
13.使用TinyValidator的JSON数据
~~~
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);
