{
    "path": "$OET_PATH/testcases/function_test/pkg_test/R/R-R.devices",
    "machine num": 1,
    "cases": [
        {
            "name": "test_R-devices_function_pdf",
            "desc": "测试pdf()函数，验证其能否成功创建PDF格式的图形输出文件。"
        },
        {
            "name": "test_R-devices_function_png",
            "desc": "测试png()函数，验证其能否成功创建PNG格式的图形输出文件。"
        },
        {
            "name": "test_R-devices_function_jpeg",
            "desc": "测试jpeg()函数，验证其能否成功创建JPEG格式的图形输出文件。"
        },
        {
            "name": "test_R-devices_function_dev_cur",
            "desc": "测试dev.cur()函数，验证其能否正确返回当前活动图形设备的编号。"
        },
        {
            "name": "test_R-devices_function_dev_list",
            "desc": "测试dev.list()函数，验证其能否正确列出所有已打开的图形设备。"
        },
        {
            "name": "test_R-devices_function_dev_set",
            "desc": "测试dev.set()函数，验证其能否将指定编号的图形设备设置为当前活动设备。"
        },
        {
            "name": "test_R-devices_function_dev_copy",
            "desc": "测试dev.copy()函数，验证其能否将当前图形复制到另一个设备。"
        }
    ]
}