[SoapUI] 从上一个测试步骤获取ID list，通过Groovy脚本动态生成 Data Source 供后面的步骤使用

https://support.smartbear.com/readyapi/docs/testing/data-driven/types/groovy.html

从官网拷贝code到SoapUI里面，result那里一直报错，仔细看发现result的颜色不对，正常应该是黑色，显示却是紫色。

后来猜想是不是result前面有隐藏的什么黑暗字符，果断抹一遍，发现还真是，抹干净就运行成功了。

// Import required class
import groovy.io.FileType

// Get current row
def row = testRunner.testCase.testSteps["DataSource"].currentRow;

// Get the home user directory
def directoryName = System.getProperty("user.home");

// Declare an array that will contain file names
def fileNames = [];

// Get a list of files in the directory
new File(directoryName).eachFile(FileType.FILES)
{
    // Add the name of the file to the list
    file -> fileNames.add(file.name);
}

// Check that the current row number does not exceed the array size
if (row < fileNames.size) {
    // Return the name to data source's "File" property
    result["File"] = fileNames[row];
}