Question

我有一组鼻子测试用于测试一块硬件。例如，下面的测试涉及测试系统上每种模式的警报：

import target

modes = ("start","stop","restart","stage1","stage2")
max_alarm_time = 10

# generate tests for testing each mode
def test_generator():
    for m in modes:
        yield check_alarm, m, max_alarm_time 

# test alarm for a mode
def check_alarm(m, max_alarm_time):
    target.set_mode(m)
    assert target.alarm() < max_alarm_time

我的大多数测试都有这样的外观，我正在测试系统上所有modes的特定功能。

我现在希望使用同一组测试来测试一个新的硬件，它有两个额外的模式：

modes = ("start","stop","restart","stage1","stage2","stage3","stage4")

当然，我希望我的测试仍适用于旧硬件。运行自动化测试时，我需要为测试环境硬编码我连接的硬件。

我认为最好的方法是创建一个paramaters.py模块，如下所示：

def init(hardware):
    global max_alarm_time
    global modes
    max_alarm_time = 10
    if hardware == "old":
       modes = ("start","stop","restart","stage1","stage2")
    elif hardware == "new":
       modes = ("start","stop","restart","stage1","stage2","stage3","stage4")

test_alarms.py现在看起来像这样：

import target
import parameters

# generate tests for testing each mode
def test_generator():
    for m in parameters.modes:
        yield check_alarm, m, parameters.max_alarm_time 

# test alarm for a mode
def check_alarm(m, max_alarm_time):
    target.set_mode(m)
    assert target.alarm() < max_alarm_time

然后在我的主要内容中我有以下内容：

import nose
import parameters

parameters.init("new") 

nose.main()

您认为这是一种有效的方法吗？

Answer 1

解决类似问题的另一种方法是以下列方式滥用属性插件中的@attr装饰器：

from nose.plugins.attrib import attr

max_alarm_time = 10

# generate tests for testing each mode
@attr(hardware='old')
@attr(modes = ("start","stop","restart","stage1","stage2"))
def test_generator_old():
    for m in test_generator_old.__dict__['modes']:
        yield check_alarm, m, max_alarm_time 

@attr(hardware='new')
@attr(modes = ("start","stop","restart","stage1","stage2", "stage3","stage4"))
def test_generator_new():
    for m in test_generator_new.__dict__['modes']:
        yield check_alarm, m, max_alarm_time 


# test alarm for a mode
def check_alarm(m, max_alarm_time):
    print "mode=", m

您可以立即切换旧版＆＃39;和＆＃39; new＆＃39;，像这样：

$ nosetests modes_test.py -a hardware=new -v
modes_test.test_generator_new('start', 10) ... ok
modes_test.test_generator_new('stop', 10) ... ok
modes_test.test_generator_new('restart', 10) ... ok
modes_test.test_generator_new('stage1', 10) ... ok
modes_test.test_generator_new('stage2', 10) ... ok
modes_test.test_generator_new('stage3', 10) ... ok
modes_test.test_generator_new('stage4', 10) ... ok

----------------------------------------------------------------------
Ran 7 tests in 0.020s

OK

旧的： $ nosetests modes_test.py -a hardware = old -v

modes_test.test_generator_old('start', 10) ... ok
modes_test.test_generator_old('stop', 10) ... ok
modes_test.test_generator_old('restart', 10) ... ok
modes_test.test_generator_old('stage1', 10) ... ok
modes_test.test_generator_old('stage2', 10) ... ok

----------------------------------------------------------------------
Ran 5 tests in 0.015s

OK

此外，虽然我没有玩那么多，nose-testconfig可以帮助你做同样的伎俩。

为不同的测试目标配置鼻子测试

1 个答案: