Appium常用断言

红太狼 2023-01-16 09:57 165阅读 0赞

在编写自动化脚本，一般常用的断言场景有两种：

*  元素是否存在：`find_elements`
 *  元素属性是否正确：`get_attribute`

## pytest assert ##

appium引入pytest之后，就可以直接使用pytest的断言语法

### 元素是否存在 ###

assert len(self.driver.find_elements_by_xpath('//*[@text="Edit"]')) == 1
    
    assert 'Clicked popup menu item Search' in self.driver.find_element_by_xpath('//*[@class="android.widget.Toast"]').text

### 元素属性是否正确 ###

UI层展示：如客户端展示的数据精度，UI测试是配合着接口测试来进行的

assert len(self.driver.find_element_by_xpath('//*[@class="android.widget.Toast"]').text) > 10

toast = self.driver.find_element_by_xpath('//*[@class="android.widget.Toast"]')
    toast.get_attribute()

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assert len(toast.text) > 10  
    assert 'Clicked popup menu item Search' in toast.get_attribute('text')

## hamcrest断言方式 ##

除了传统的`xUnit`风格的`assertXXX()`系列断言，[hamcrest][]断言是基于更灵活的matchers断言方式，如数值是否接近，范围等

python：https://github.com/hamcrest/PyHamcrest

assert_that(toast.get_attribute('text'), equal_to('Clicked popup menu item Search'))

## 示例 ##

from appium import webdriver
    from hamcrest import *
    
    """ demo下载： - https://github.com/appium/java-client/blob/master/src/test/resources/apps/ApiDemos-debug.apk """
    
    
    class TestDemo:
        def setup(self):
            caps = { }
            caps['platformName'] = 'Android'
            caps['appPackage'] = 'io.appium.android.apis'
            caps['appActivity'] = '.ApiDemos'
            caps['noReset'] = True
    
            self.driver = webdriver.Remote('http://127.0.0.1:4723/wd/hub', caps)
            self.driver.implicitly_wait(10)
    
        def test_demo_pytest_assert(self):
            # 点击Views
            self.driver.find_element_by_android_uiautomator('new UiSelector().text("Views")').click()
            # 点击Popup Menu
            self.driver.find_element_by_android_uiautomator(
                'new UiScrollable(new UiSelector().scrollable(true).instance(0)).scrollIntoView(new UiSelector().text("Popup Menu").instance(0));').click()
    
            self.driver.find_element_by_accessibility_id('Make a Popup!').click()
            assert len(self.driver.find_elements_by_xpath('//*[@text="Edit"]')) == 1  # 断言是否存在'Edit'文案
    
            self.driver.find_element_by_xpath('//*[@text="Search"]').click()
    
            toast = self.driver.find_element_by_xpath('//*[@class="android.widget.Toast"]')
            assert 'Clicked popup menu item Search' in toast.text  # 断言toast文案是否为'Clicked popup menu item Search'
    
            assert len(toast.text) > 10  # 断言toast文案长度大于10
            assert 'Clicked popup menu item Search' in toast.get_attribute(
                'text')  # 断言toast的text属性为'Clicked popup menu item Search'
    
            assert_that(toast.get_attribute('text'), equal_to('Clicked popup menu item Search'))  # hamcrest形式的断言
    
        def teardown(self):
            self.driver.quit()

[hamcrest]: http://hamcrest.org/