如何用Python解析Robot文件并提取库、关键字及对应参数

需求目标 #

解析Robot测试文件，完成两项任务：

1. 提取文件中声明的所有库（包含库的初始化参数）
2. 提取测试用例中的关键字及其对应的参数

原始Robot文件内容 #

*** Settings ***
Documentation     OpenGoogle
Library           SeleniumLibrary    timeout=10
Test Teardown     Close Browser

*** Test Cases ***
OpenGoogle Test
    Open Available Browser    https://www.google.com/
    Maximize Browser Window
    Input Text    /html/body/div[1]/div[3]/form/div[1]/div[1]/div[1]/div/div[2]/input    python tutorial
    Click Element    /html/body/div[1]/div[3]/form/div[1]/div[1]/div[4]/center/input[1]
    Sleep    3s

初始尝试的Python代码 #

from robot.api import TestSuiteBuilder


def parse_robot_file2(file_path):
    suite_builder = TestSuiteBuilder()
    suite = suite_builder.build(file_path)

    for testcase in suite.tests:
         
         print(f"{testcase}")
       
         for step in testcase.keywords:
             keyword = step.name
             arguments = step.args
             print(f"{keyword}({', '.join(arguments)})")

parse_robot_file2("robot_scriptt.robot")

初始代码运行输出 #

Open Available Browser(https://www.google.com/)
Maximize Browser Window()
Input Text(/html/body/div[1]/div[3]/form/div[1]/div[1]/div[1]/div/div[2]/input, python tutorial)
Click Element(/html/body/div[1]/div[3]/form/div[1]/div[1]/div[4]/center/input[1])
Sleep(3s)
Close Browser()

优化后的完整实现代码 #

初始代码仅提取了关键字信息，以下是补充库列表提取的完整代码：

from robot.api import TestSuiteBuilder


def parse_robot_file(file_path):
    suite_builder = TestSuiteBuilder()
    suite = suite_builder.build(file_path)

    # 提取并打印库列表
    print("=== 已加载的库 ===")
    for lib in suite.resource.imports:
        if lib.type == 'Library':
            lib_name = lib.name
            lib_args = ', '.join(lib.args)
            print(f"{lib_name}({lib_args})" if lib_args else lib_name)

    # 提取并打印测试用例的关键字与参数
    print("\n=== 测试用例关键字详情 ===")
    for testcase in suite.tests:
        print(f"\n测试用例：{testcase.name}")
        for step in testcase.keywords:
            keyword = step.name
            arguments = ', '.join(step.args)
            print(f"  {keyword}({arguments})")


parse_robot_file("robot_scriptt.robot")

优化代码的运行输出 #

=== 已加载的库 ===
SeleniumLibrary(timeout=10)

=== 测试用例关键字详情 ===

测试用例：OpenGoogle Test
  Open Available Browser(https://www.google.com/)
  Maximize Browser Window()
  Input Text(/html/body/div[1]/div[3]/form/div[1]/div[1]/div[1]/div/div[2]/input, python tutorial)
  Click Element(/html/body/div[1]/div[3]/form/div[1]/div[1]/div[4]/center/input[1])
  Sleep(3s)
  Close Browser()

内容的提问来源于stack exchange，提问作者Kuldeep