Support full Electron API

[kevinsawicki]

When this library started, I was adding helper commands as I needed them to assert specific things for the tests I was trying to write.

This worked fine but isn't really a sustainable way to build this library going forward. To get 100% Electron API coverage via this approach would be tedious and it would be falling behind as the APIs were updated.

This pull request introduces support for the entire Electron API by dynamically generating it when the app is started. This is exposed through 5 new top-level properties:

• browserWindow which is an alias to require('electron').remote.getCurrentWindow()
• webContents which is an alias to require('electron').remote.getCurrentWebContents()
• electron which is an alias to require('electron')
• mainProcess which is an alias to require('electron').remote.process
• rendererProcess which is an alias to global.process in the browser window

Before

app.client.getWindowBounds()
app.client.setClipboardText('pasta')

After

app.browserWindow.getBounds()
app.electron.clipboard.readText('pasta')

This pull request will remove the old helper breaking backwards compatibility and so the major will be bumped in the next release after this is merged.

Remaining Tasks

• Remove old manually created command wrappers
• Update docs
• Update remaining specs

/cc @zeke

[zeke]

💃