在 运行 测试套件上动态创建机器人框架测试用例

create robot framework Test Case dynamically on running test suite

我有一个非常具体的场景,我将一些数据插入数据库(例如,假设 3 个插入,每个插入 returns 一些 ID)并基于 return 值 我想为那些 return 值创建动态测试用例 例如

*** Variables ***
@{result}    ${EMPTY}

*** Test Cases ***
Some dummy sql inserts
    ${result}    Insert sql statements    dt1    dt2    dt3 #e.g. return ['123', '456', '789']

Verify some ids
    # NOPE, sorry i can't use [Template] because each iteration is not marked on a report as a "TEST" but as a "VAR"
    Verify if ids exist somewhere ${result} #This keyword execution should create another 3 test cases, one for each item from ${result} list

*** Keywords ***
Insert sql statement
    [Arguments]    @{data}
    Create List    ${result}
    FOR    ${elem}    IN    @{data}
        ${return_id}    SomeLib.Execute SQL    INSERT INTO some_table(some_id) VALUES (${elem})
        Append To List    ${result}    ${return_id}
    END
    [Return]    ${result}

Verify if ids exist somewhere
    [Arguments]    ${some_list_of_ids}
    FOR    ${id}    IN    @{some_list_of_ids}
        So some stuff on ${id}
    END

我试图通过参考 robot API documentation 来弄清楚如何做到这一点,但没有成功。 如果可行的话,请 tell/advise 好吗?如果可行,我该如何实现。
到目前为止,我发现可能有两种方法可以做到这一点:

  1. 通过创建监听器
  2. 通过创建自己的关键字

在这两种情况下,我都必须将逻辑放在那里,但不知道如何即时创建测试用例。
请帮助? :)

P.S。一些例子非常受欢迎。提前致谢

有博客 post 为您解答: https://gerg.dev/2018/09/dynamically-create-test-cases-with-robot-framework/

正如您所建议的那样,解决方案是创建一个侦听器,以便您可以动态添加测试。请仔细阅读 post,因为有一些限制,例如何时可以和不能创建测试(在执行过程中)。 此外,post 用于 3.x 框架,而对于 4.x,您需要对 class 进行微小的更改,方法是替换: tc.keywords.create(名称=kwname, args=args) 和: tc.body.create_keyword(名称=kwname, args=args).

关于如何实现的示例:

demo.robot:

*** Settings ***
Library           DynamicTestCases.py

*** Test Cases ***
Create Dynamic Test Cases
    @{TestNamesList}    Create List    "Test 1"    "Test 2"    "Test 3"
    FOR    ${element}    IN    @{TestNamesList}
        Add Test Case    ${element}   Keyword To Execute
    END

*** Keywords ***
Keyword To Execute
    Log    This is executed for each test!

DynamicTestCases.py 内容(从 url 我 post 编辑的基本副本 + 更改后的行):

from __future__ import print_function
from robot.running.model import TestSuite


class DynamicTestCases(object):
    ROBOT_LISTENER_API_VERSION = 3
    ROBOT_LIBRARY_SCOPE = 'TEST SUITE'

    def __init__(self):
        self.ROBOT_LIBRARY_LISTENER = self
        self.current_suite = None

    def _start_suite(self, suite, result):
        # save current suite so that we can modify it later
        self.current_suite = suite

    def add_test_case(self, name, kwname, *args):
        """Adds a test case to the current suite

        'name' is the test case name
        'kwname' is the keyword to call
        '*args' are the arguments to pass to the keyword

        Example:
            add_test_case  Example Test Case  
            ...  log  hello, world  WARN
        """
        tc = self.current_suite.tests.create(name=name)
        #tc.keywords.create(name=kwname, args=args) #deprecated in 4.0
        tc.body.create_keyword(name=kwname, args=args)

# To get our class to load, the module needs to have a class
# with the same name of a module. This makes that happen:
globals()[__name__] = DynamicTestCases

这是一个如何让它工作的小例子。 例如,如果你想给关键字一个变量,只需添加参数:

*** Settings ***
Library           DynamicTestCases.py

*** Test Cases ***
Create Dynamic Test Cases
    @{TestNamesList}    Create List    "Test 1"    "Test 2"    "Test 3"
    FOR    ${element}    IN    @{TestNamesList}
        Add Test Case    ${element}   Keyword To Execute    ${element}
    END

*** Keywords ***
Keyword To Execute
    [Arguments]    ${variable}
    Log    The variable sent to the test was: ${variable}