接口测试工具

目标：降低接口测试难度、帮助开发人员快速测试接口。
目前已支持dubbo接口测试（需要借助Edge将dubbo接口以http形式发布），后期可以经过简单修改就能支持rest接口测试。 测试人员通过json、js语言编写用例文件，通过maven插件执行用例，并生成报告；

与Edge比较
Edge擅长的是以可视化的方式、实时的对接口进行测试，测试结果返回后需要人为的check。比较适合在开发、联调阶段使用。
interface-test将用例以脚本的方式保存下来，通过脚本自定义check规则，程序自动判断接口测试结果，用例可以回放执行。比较适合用在服务重构后接口的兼容检查、版本上线前的接口检测。
测试dubbo接口时，interface-test工具依赖Edge工具的测试接口。

使用介绍

添加依赖

<dependencies>
    <dependency>
        <groupId>com.qianmi</groupId>
        <artifactId>interface-test</artifactId>
        <version>1.0.5-RELEASE</version>
        <scope>runtime</scope>
    </dependency>
</dependencies>

指定build plugin

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.5.0</version>
    <executions>
        <execution>
            <id>run-testcase</id>
            <goals>
                <goal>java</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <classpathScope>runtime</classpathScope>
        <mainClass>org.springframework.boot.loader.JarLauncher</mainClass>
        <arguments>
            <argument>-Dspring.config.location=${basedir}/application.properties</argument> <!--指定运行配置文件-->
        </arguments>
    </configuration>
</plugin>

application.properties

logging.level.root=info
logging.level.com.qianmi=debug
logging.level.com.qianmi.tda.report=info

## 测试用例根目录
test-suit-home=${user.dir}/testcase/com/qianmi/pc/stock/api
## 测试用例文件扩展名
test-case-file-extensions=.ts.json, .ts.js
## 测试报告根目录
test-reports-home=${user.dir}/reports
## 默认dubbo测试服务器地址(Edge服务地址)
default-test-server-url=http://172.19.65.96:8080/executeTest.do

http.client.connection-manager-default-max-per-route=1000
http.client.request-connect-timeout=2000
http.client.connection-manager-max-total=1000
http.client.request-read-timeout=100000

使用demo: interface-test-demo

创建测试套（TestSuit）

TestCase模板：

   {
      "name": "case1",
      "params": [],
      "expects": [
        {
          "operator": "=",
          "path": "$",
          "value": {}
        }
      ]
    }

Field	Type	Description
name	String	用例名称，建议根据测试场景命名，不可为空
params	Object[]	参数列表，待测接口的JSON格式
expects	Expect[]	断言数组。

operator: 期待值与真实值的比较操作符，支持“=、!=、<、<=、>、>=、contains、!contains、match、!match”;
path: 从接口返回结果取值的路径，参见 JsonPath表达式;
value: 期待值

TestSuit模板：

{
  "dubboServiceURL": "dubbo://172.19.65.199:20880",
  "execOrder": 1,
  "intfName": "com.qianmi.pc.api.app.AppProductProvider:1.0.0@addFromOwner",
  "testCases": [{}],
  "testServerURL": null
}

Field	Type	Description
dubboServiceURL	String	dubbo服务地址，可为空，未指定时从dubbo注册中心上自动查找
execOrder	Number	测试套执行顺序，默认为1，值越小优先级越高
intfName	String	待测接口名，不填写时将根据文件名猜测
testCases	TestCase[]	测试用例数组，参见TestCase模板
testServerURL	String	测试目标服务器地址，测试dubbo接口时，此处配置Edge服务器代理地址

intfName为空时，系统会根绝文件路径与文件名进行猜测。例如：在%TEST_SUIT_HOME%目录下放置"com/qianmi/pc/api/app/AppProductProvider#1.0.0@addFromOwner.ts.json"文件，intfName将会自动猜测为："com.qianmi.pc.api.app.AppProductProvider:1.0.0@addFromOwner"

完整TestSuit示例：

{
  "dubboServiceURL": "dubbo://172.19.65.199:20880",
  "execOrder": 1,
  "intfName": "com.qianmi.pc.api.app.AppProductProvider:1.0.0@addFromOwner",
  "testCases": [
    {
      "name": "成功从供应商添加商品",
      "params": [
        {
          "chainMasterId": "A1295139",
          "commissionType": 1,
          "cost": 0,
          "optUserCode": null,
          "optUserName": null,
          "price": 0,
          "productId": "1300607",
          "shopStatus": 0,
          "stock": 0,
          "supplierId": "A1437887"
        }
      ],
      "expects": [
        {
          "operator": "=",
          "path": "$.sourceChainMasterId",
          "value": "A1295139"
        },{
          "operator": "=",
          "path": "$.productId",
          "value": "1300607"
        },{
          "operator": ">=",
          "path": "$.goodsIds.length()",
          "value": 1
        }
      ]
    }
  ],
  "testServerURL": "http://172.19.65.96:8080/executeTest.do"
}

TestSuit文件存放路径以及命名规则:
默认TEST_SUIT_HOME目录在System.getProperty("user.dir")下的testcase目录。
src/test/java/com/qianmi/tda/TestCaseGenerator.java提供了根据ES接口日志自动生成TestSuit的方法。

执行测试

打开com.qianmi.tda.InterfaceTestApplication，执行main方法即可。测试报告存放在TEST_SUIT_HOME下。

JsonPath表达式

JsonPath expressions can use the dot–notation

$.store.book[0].title

or the bracket–notation

$['store']['book'][0]['title']

Operators

Operator	Description
$	The root element to query. This starts all path expressions.
@	The current node being processed by a filter predicate.
*	Wildcard. Available anywhere a name or numeric are required.
..	Deep scan. Available anywhere a name is required.
.<name>	Dot-notated child
['<name>' (, '<name>')]	Bracket-notated child or children
[<number> (, <number>)]	Array index or indexes
[start:end]	Array slice operator
[?(<expression>)]	Filter expression. Expression must evaluate to a boolean value.

Functions

Functions can be invoked at the tail end of a path - the input to a function is the output of the path expression. The function output is dictated by the function itself.

Function	Description	Output
min()	Provides the min value of an array of numbers	Double
max()	Provides the max value of an array of numbers	Double
avg()	Provides the average value of an array of numbers	Double
stddev()	Provides the standard deviation value of an array of numbers	Double
length()	Provides the length of an array	Integer

Filter Operators

Filters are logical expressions used to filter arrays. A typical filter would be [?(@.age > 18)] where @ represents the current item being processed. More complex filters can be created with logical operators && and ||. String literals must be enclosed by single or double quotes ([?(@.color == 'blue')] or [?(@.color == "blue")]).

Operator	Description
==	left is equal to right (note that 1 is not equal to '1')
!=	left is not equal to right
<	left is less than right
<=	left is less or equal to right
>	left is greater than right
>=	left is greater than or equal to right
=~	left matches regular expression [?(@.name =~ /foo.*?/i)]
in	left exists in right [?(@.size in ['S', 'M'])]
nin	left does not exists in right
size	size of left (array or string) should match right
empty	left (array or string) should be empty

Path Examples

Given the json

{
    "store": {
        "book": [
            {
                "category": "reference",
                "author": "Nigel Rees",
                "title": "Sayings of the Century",
                "price": 8.95
            },
            {
                "category": "fiction",
                "author": "Evelyn Waugh",
                "title": "Sword of Honour",
                "price": 12.99
            },
            {
                "category": "fiction",
                "author": "Herman Melville",
                "title": "Moby Dick",
                "isbn": "0-553-21311-3",
                "price": 8.99
            },
            {
                "category": "fiction",
                "author": "J. R. R. Tolkien",
                "title": "The Lord of the Rings",
                "isbn": "0-395-19395-8",
                "price": 22.99
            }
        ],
        "bicycle": {
            "color": "red",
            "price": 19.95
        }
    },
    "expensive": 10
}

JsonPath (click link to try)	Result
$.store.book[*].author	The authors of all books
$..author	All authors
$.store.*	All things, both books and bicycles
$.store..price	The price of everything
$..book[2]	The third book
$..book[0,1]	The first two books
$..book[:2]	All books from index 0 (inclusive) until index 2 (exclusive)
$..book[1:2]	All books from index 1 (inclusive) until index 2 (exclusive)
$..book[-2:]	Last two books
$..book[2:]	Book number two from tail
$..book[?(@.isbn)]	All books with an ISBN number
$.store.book[?(@.price < 10)]	All books in store cheaper than 10
$..book[?(@.price <= $['expensive'])]	All books in store that are not "expensive"
$..book[?(@.author =~ /.*REES/i)]	All books matching regex (ignore case)
$..*	Give me every thing
$..book.length()	The number of books