Web自动化测试之playwright：设置浏览器语言

playwright支持基于Chromium内核的Google Chrome 和 Microsoft Edge浏览器, WebKit内核的Apple Safari 和 Mozilla Firefox浏览器，可以对浏览器的语言进行设置，可用来测试产品的语言自适应功能。

playwright设置浏览器语言比selenium更简洁，创建浏览器上下文时设置一下locale参数：

browser.new_context(locale="zh-CN")

chrome浏览器语言设置示例：

from playwright.sync_api import sync_playwrightclass TestBrowser():def setup(self):self.playwright = sync_playwright().start()def teardown(self):self.browser.close()def test_chrome(self):self.browser = self.playwright.chromium.launch(channel="chrome", headless=False)context = self.browser.new_context(locale="zh-CN") # zh-CN、en-GBpage = context.new_page()page.goto("/")lan = page.evaluate("window.navigator.language;")print(lan)assert lan == "zh-CN"

Edge，WebKit，Firefox浏览器类似：

def test_edge(self):self.browser = self.playwright.chromium.launch(channel="msedge", headless=False)context = self.browser.new_context(locale="de-DE")page = context.new_page()page.goto("/")lan = page.evaluate("window.navigator.language;")print(lan)assert lan == "de-DE"def test_firefox(self):self.browser = self.playwright.firefox.launch(headless=False)context = self.browser.new_context(locale="de-DE")page = context.new_page()page.goto("/")lan = page.evaluate("window.navigator.language;")print(lan)assert lan == "de-DE"def test_webkit(self):self.browser = self.playwright.webkit.launch(headless=False)context = self.browser.new_context(locale="de-DE")page = context.new_page()page.goto("/")lan = page.evaluate("window.navigator.language;")print(lan)assert lan == "de-DE"

上面是同步版本，也可以写成异步方式：

import asyncioimport timefrom playwright.async_api import async_playwrightasync def test_chrome():print('test_chrome start')async with async_playwright() as p:browser = await p.chromium.launch(headless=False)context = await browser.new_context(locale="en-US") # zh-CN、en-GBpage = await context.new_page()await page.goto("/")lan = await page.evaluate("window.navigator.language;")assert lan == "en-US"await browser.close()print('test_chrome done')async def test_edge():print('test_edge start')async with async_playwright() as p:browser = await p.chromium.launch(channel="msedge", headless=False)context = await browser.new_context(locale="en-US") # zh-CN、en-GBpage = await context.new_page()await page.goto("/")lan = await page.evaluate("window.navigator.language;")assert lan == "en-US"await browser.close()print('test_edge done')async def test_firefox():print('test_firefox start')async with async_playwright() as p:browser = await p.firefox.launch(headless=False)context = await browser.new_context(locale="en-US") # zh-CN、en-GBpage = await context.new_page()await page.goto("/")lan = await page.evaluate("window.navigator.language;")assert lan == "en-US"await browser.close()print('test_firefox done')async def test_webkit():print('test_webkit start')async with async_playwright() as p:browser = await p.webkit.launch(headless=False)context = await browser.new_context(locale="en-US") # zh-CN、en-GBpage = await context.new_page()await page.goto("/")lan = await page.evaluate("window.navigator.language;")assert lan == "en-US"await browser.close()print('test_webkit done')async def main():task1 = asyncio.create_task(test_chrome())task2 = asyncio.create_task(test_edge())task3 = asyncio.create_task(test_firefox())task4 = asyncio.create_task(test_webkit())tasks = [task1, task2, task3, task4]print('before await')await asyncio.gather(*tasks)start = time.time()asyncio.run(main())end = time.time()print('Running time: %s Seconds' % (end - start))

执行结果：

before awaittest_chrome starttest_edge starttest_firefox starttest_webkit starttest_chrome donetest_edge donetest_webkit donetest_firefox doneRunning time: 17.376961946487427 Seconds

不同国家的语言代码可参考：/admin-sdk/directory/v1/languages

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