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21 lines
1.5 KiB
Markdown
21 lines
1.5 KiB
Markdown
### QA Migrations Guide
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Migrations are needed to change top-level state data, this can be found in the browser's storage. This can look like removing specific keys/value pairs from state, changing objects to an array of objects, changing the name of a controller, etc.
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Steps
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1. Create a new MetaMask directory\* folder locally with the source files before the migration, and load it as an unpacked extension in Chrome\*. If the migration is in a pull request, then build the `develop` branch to load. If the migration is already in `develop`, get a commit before the migration was added to build.
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##### \* For migrations targeting specific features behind a feature flag add them appropriately to the `.metamaskrc` file before building.
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##### \* In order for the "Load unpacked" button to be shown developer mode needs to be enabled.
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2. Once the build has been loaded and state data has been initialized, ensure that the data in question that the migration targets is present in the local storage data.
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3. To trigger the migration a build with the migration will need to replace the files in the directory where the extension is loaded from, and refresh the extension.
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4. Ensure that the data has been changed/deleted/etc.
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