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Allow exporting state during e2e tests #7860

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Jan 17, 2020
Merged

Allow exporting state during e2e tests #7860

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4 changes: 4 additions & 0 deletions app/scripts/background.js
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,10 @@ const localStore = inTest
: new LocalStore()
let versionedData

if (inTest || process.env.METAMASK_DEBUG) {
global.metamaskGetState = localStore.get.bind(localStore)
}

// initialization flow
initialize().catch(log.error)

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27 changes: 7 additions & 20 deletions test/e2e/fixtures/README.md
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Expand Up @@ -7,30 +7,17 @@ one thing:

## Generating fixture data

Fixture data can be generated by loading the unpacked extension, inspecting the background context,
dumping `chrome.storage.local`, and using [`copy`][1] to copy it to the clipboard, and manually pasting the contents into
a file on disk.
Fixture data can be generated by following these steps:

```js
// Step 1:
chrome.storage.local.get(null, (x) => console.log(x))
// Should print something like:
// > temp1
// > {data: {…}, meta: {…}}
1. Load the unpacked extension in development or test mode
2. Inspecting the background context of the extension
3. Call `metamaskGetState`, then call [`copy`][1] on the results

// Step 2:
// Store the value as a global via the 'Store as global variable' option in context menu (shown below)
You can then paste the contents directly in your fixture file.

// Step 3:
copy(temp1)
```js
copy(await metamaskGetState())
```

Store the value as a global variable:

<img
width="840"
alt="Store as global variable"
src="https://user-images.githubusercontent.com/1623628/60987884-1a2c4a00-a31d-11e9-932e-b7fab452e6bd.png"
/>

[1]:https://developers.google.com/web/tools/chrome-devtools/console/utilities