Python Lettuce BDD 功能文件不会运行 - 我如何运行

Question

我刚开始学习 BDD，因为我想将我的 Python Webdriver 回归测试用例转换为使用 BDD。我想获得BDD，因为它现在在行业中被广泛使用。

我正在学习一个带有功能和步骤文件的简单计算器教程。当我运行来自 Python 控制台的功能文件时，我收到以下错误：运行从 PyCharm i select 查看 -> 工具 Windows -> I select Python 控制台。 Python 控制台 window 打开然后我输入 PythonBDD/tests/features/calculator_feature.feature

        >> PythonBDD/tests/features/calculator_feature.feature
Traceback (most recent call last):
  File "<input>", line 1, in <module>
NameError: name 'PythonBDD' is not defined
>>> tests/features/calculator_feature.feature
Traceback (most recent call last):
  File "<input>", line 1, in <module>
NameError: name 'tests' is not defined
>>> $ lettuce
  File "<input>", line 1
    $ lettuce
    ^
SyntaxError: invalid syntax
>>> $lettuce
  File "<input>", line 1
    $lettuce
    ^
SyntaxError: invalid syntax
>>> cd pythonbdd
  File "<input>", line 1
    cd pythonbdd
               ^
SyntaxError: invalid syntax
>>> calculator_feature.feature$ lettuce
  File "<input>", line 1
    calculator_feature.feature$ lettuce
                              ^
SyntaxError: invalid syntax
>>> calculator_feature.feature lettuce
  File "<input>", line 1
    calculator_feature.feature lettuce
                                     ^
SyntaxError: invalid syntax
>>> calculator_feature.feature
Traceback (most recent call last):
  File "<input>", line 1, in <module>
NameError: name 'calculator_feature' is not defined
>>> lettuce calculator_feature.feature
  File "<input>", line 1
    lettuce calculator_feature.feature
                             ^
SyntaxError: invalid syntax
>>> PythonBDD/tests/features/calculator_feature.feature
Traceback (most recent call last):
  File "<input>", line 1, in <module>
NameError: name 'PythonBDD' is not defined

如何运行功能文件？

我的代码树结构如下：

PythonBDD
    -- app
        --_init_.py
        -- calculator.py
    -- tests
        -- features
            -- calculator_feature.features
            -- calculator_steps.py

calculator_steps.py

from lettuce import *
from nose.tools import assert_equals
from app.calculator import Calculator


@step(u'I am using the calculator')
def select_calc(step):
    print ('Attempting to use calculator...')
    world.calc = Calculator()


@step(u'I input "([^"]*)" add "([^"]*)"')
def given_i_input_group1_add_group1(step, x, y):
    world.result = world.calc.add(int(x), int(y))


@step(u'I should see "([^"]+)"')
def result(step, expected_result):
    actual_result = world.result
    assert_equals(int(expected_result), actual_result)

calculator_feature.feature

Feature: As a writer for NetTuts
  I wish to demonstrate
  How easy writing Acceptance Tests
  In Python really is.

  Background:
    Given I am using the calculator

  Scenario: Calculate 2 plus 2 on our calculator
    Given I input "2" add "2"
    Then I should see "4"

Answer 1

只需运行 lettuce 在您的测试目录中。

另请注意树结构中 calculator_feature.features 文件名中的拼写错误。

请注意 PyCharm 对于 Behave 和 Lettuce 流行的 BDD 框架都有 built-in support。

Python Lettuce BDD 功能文件不会运行 - 我如何运行

Python Lettuce BDD feature file will not run - How do i run it

python-2.7

selenium

selenium-webdriver

bdd

Python Lettuce BDD 功能文件不会 运行 - 我如何 运行

Python Lettuce BDD feature file will not run - How do i run it

python-2.7

selenium

selenium-webdriver

bdd

Python Lettuce BDD 功能文件不会运行 - 我如何运行