What is the best method to verify chrome.runtime.onInstalled in Chrome extension testing?

Is there a way to test the chrome.runtime.onInstalled handler? I am developing a Chrome extension that utilizes chrome storage to store specific data. In my upcoming release, I plan on making changes to the data model in chrome storage. To do this effectively, I believe I need to create a migration file that triggers when the old version is updated to the new Chrome version and migrates the data accordingly.

chrome.runtime.onInstalled.addListener((details => {
  if (details.reason === 'update') {
    console.debug(`Upgrading from version ${details.previousVersion}`)
    const previousVersion = parseVersion(details.previousVersion || '0.0.0')
    if (compareVersions(previousVersion, [1, 1, 0]) <= 0) {
      upgradeFrom1_1_0()
    }
  }
}))

I intend to employ onInstalled for this purpose as outlined above, but I am keen to explore testing possibilities. Any thoughts or suggestions on how to properly test this functionality would be greatly appreciated. Thanks!

javascriptgoogle-chromegoogle-chrome-extension

Answer №1

In order to proceed, you must generate two unique crx files. Follow these steps:

  1. Firstly, create the .crx file for the older version and save the .pem file separately.
  2. Next, drag the .crx file onto the chrome://extensions/ page and confirm the installation.
  3. Then, generate the .crx file for the newer version using the previously saved .pem file.
  4. Finally, drag this new .crx file onto the chrome://extensions/ page and open the devtool console to verify the update.

Note: It is important to remember that certain browsers no longer support installations from crx files. However, there are solutions to this issue. One quick option is to install the SRWare Iron browser, which still allows crx file installations.

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