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49 lines
1.2 KiB
Markdown
49 lines
1.2 KiB
Markdown
# Chrome Extensions
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Puppeteer can be used for testing Chrome Extensions.
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:::caution
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Extensions in Chrome/Chromium do not work in the old headless/`chrome-headless-shell`.
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:::
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The following is code for getting a handle to the
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[background page](https://developer.chrome.com/extensions/background_pages) of
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an extension whose source is located in `./my-extension`:
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```ts
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import puppeteer from 'puppeteer';
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import path from 'path';
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(async () => {
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const pathToExtension = path.join(process.cwd(), 'my-extension');
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const browser = await puppeteer.launch({
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headless: true,
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args: [
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`--disable-extensions-except=${pathToExtension}`,
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`--load-extension=${pathToExtension}`,
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],
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});
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const backgroundPageTarget = await browser.waitForTarget(
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target => target.type() === 'background_page'
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);
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const backgroundPage = await backgroundPageTarget.page();
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// Test the background page as you would any other page.
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await browser.close();
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})();
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```
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:::note
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Chrome Manifest V3 extensions have a background ServiceWorker of type
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'service_worker', instead of a page of type 'background_page'.
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:::
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:::note
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It is not yet possible to test extension popups or content scripts.
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:::
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