webext-schema

WebExtentions schemas and MailExtensions schemas fetched from hg.mozilla.org. Stubbed browser API is also available.

Install

npm i webext-schema

Usage

import { Schema } from 'webext-schema';

const schema = new Schema();

new Schema(channel, sinonConfig)

• @param {string} [channel] - release channel. one of "beta", "central", "release", "esr", "mail".
• @param {Object} [sinonConfig] - optional configuration for sinon.createSandbox(), see Sinon.JS for details.

Both arguments are optional.

const schema = new Schema("central", {
  useFakeTimers: true,
  useFakeServer: true,
});

schema.channel

"central", "beta", "release", "esr" for WebExtensions, and "mail" for MailExtensions are available. Channel defaults to "beta".

const schema = new Schema("central");

Also, you can set it afterwards.

const schema = new Schema();
schema.channel = "central";

schema.get(name)

• @param {string} name - API name or file name
• @returns {?Array} - schema

Get the schema for the specific API. Argument can be either an API name or a file name.

const schema = new Schema().get("browserAction");
// [{namespace: "browserAction", events: [...], ...}]

const schema = new Schema().get("browser_action.json");
// [{namespace: "browserAction", events: [...], ...}]

schema.getAll()

• @returns {Object} - all schemas

Get all schemas as a single object. Note that the key of the object is the file name and the value is the schema.

const schema = new Schema().getAll();
// {"alarms.json": [{...}], "bookmarks.json": [{...}], ...}

schema.list()

• @returns {Array} - file names

Get the list of schema files.

const list = new Schema().list();
// ["alarms.json", "bookmarks.json", ...]

schema.mock()

• @returns {Object} - stubbed browser api

Creates stubbed browser API.

• Functions are stubbed by sinon.sandbox.stub().
• You can access sandbox object via browser._sandbox. As an example of usage, call browser._sandbox.reset() before and/or after each test to initialize all the stubbed functions.
• Optionally, you can pass sinon configuration object as an argument when creating a schema instance.

See Sinon.JS for details of sinon.sandbox.

const browser = new Schema().mock();

// example of mocking runtime.connect()
const mockConnect = browser.runtime.connect.callsFake(({ name }) => {
  const port = Object.assign({}, browser.runtime.Port);
  port.name = name;
  return port;
});

const port1 = mockConnect({ name: "foo" });
const port2 = mockConnect({ name: "bar" });
assert.strictEqual(port1.name, "foo");
assert.isFunction(port1.onDisconnect.addListener);
assert.strictEqual(port2.name, "bar");
assert.isFunction(port2.onDisconnect.addListener);

// reset
browser._sandbox.reset();