TestNG系列：
TestNG和Junit4的參數化測試對比
TestNG運行指定測試套件
TestNG整合ReportNG
TestNG參數化測試實戰(zhàn)
TestNG+Spring/Spring Boot整合

使用TestNG的參數化測試特性實現測試數據和用例的分離杀怠，測試參數保存在數據文件中（csv，json等格式）嫌褪，本次范例使用json格式

• 一捐腿、封裝BaseTest作為所有測試類的基類宪躯，定義并實現DataProvider方法
  這里DataProvider方法使用測試方法對象（Method Object）作為參數

@ContextConfiguration(locations = "classpath:oms-ci-spring.xml")
public class BaseTest extends AbstractTestNGSpringContextTests {

    @DataProvider(name = "readTestData")
    public Object[][] testData(Method testMethod) {

        if (testMethod.getName().equals("testChooseShift")) {
            return new Object[][]{new Object[]{135001}};
        }

        String className = testMethod.getDeclaringClass().getSimpleName();

        JSONObject paramJson = readParam(className);
        JSONArray paramArr = paramJson.getJSONArray("data");

        Object[][] param = new Object[paramArr.size()][];
        for (int i = 0; i < paramArr.size(); i++) {
            JSONArray childArr = paramArr.getJSONArray(i);
            param[i] = new Object[childArr.size()];
            for (int j = 0; j < childArr.size(); j++) {
                param[i][j] = childArr.get(j).toString();
            }
        }

        return param;
    }

    /**
     *
     * @param className
     * @return
     */
    public JSONObject readParam(String className) {
        String paramText = this.readParamFile(className);

        JSONObject paramJson = null;

        try {
            paramJson = (JSONObject) JSONObject.parse(paramText);
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        return paramJson;
    }

    /**
     *
     * @param fileName
     * @return
     */
    public String readParamFile(String fileName) {

        String fileUrl = String.join("/", "param", fileName + ".json");

        return this.readFile(fileUrl);
    }

    /**
     *
     * @param fileUrl
     * @return
     */
    public String readFile(String fileUrl) {
        InputStream fi = null;
        BufferedReader bo = null;
        try {
            fi = this.getClass().getClassLoader().getResourceAsStream(fileUrl);
            bo = new BufferedReader(new InputStreamReader(fi, "utf-8"));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        StringBuilder stB = new StringBuilder();
        try {
            String lineRead = "";
            while ((lineRead = bo.readLine()) != null) {
                stB.append(lineRead);
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        } finally {
            try {
                fi.close();
                bo.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return stB.toString();
    }
}

• 二、測試方法通過DataProvider引用參數讀取的方法

/**
     * @param calDate  indicator的date_Str
     * @param targetId xspace的servicerId
     * @param expect expectValue
     */
    @Test(dataProvider = "readTestData")
    public void calIndicatorTest(String calDate, String targetId, String expect) {
        ......
        }
    }

• 三膳汪、在test/resources/目錄下創(chuàng)建數據文件唯蝶，要求文件名稱和測試類名稱一致：

這里可以按照用例目錄的結構來組織數據文件
數據文件格式如下,param1~3對應用例需要參數

{
  "data": [
    [
      param1,
      param2,
      param3
    ]
  ]
}

舉例：第二步中public void calIndicatorTest(String calDate, String targetId, String expect)的實際參數如下：

{
  "data": [
    [
      "20170831",
      98000337284,
      {
        "1": "82.74",
        "2": "55.35",
        "3": "85.59",
        "4": "77.76",
        "5": "84.21",
        "6": "46.43",
        "7": "87.32",
        "8": "75.913",
        "10": "10.94",
        "12": "58.26",
        "14": "11.31",
        "15": "10.53"
      }
    ]
  ]
}

通過以上三步，就可以實現數據和用例分離原型