thermometer

Concisely test Observable + virtual-dom components

thermometer constructs your components, renders them to the DOM, and updates the DOM whenever your state changes. This allows you to test components that interact with the DOM, such as listening on events. For simple components, you can make assertions directly on the vtree. But for things like testing DOM events (e.g. clicking a button), you'll need a DOM. In the browser, thermometer relies on the real DOM. In Node, it will use min-document, allowing you to test most DOM interactions without a browser.

It will also instantiate dom-delegator for you. This behavior depends on deduping your modules and works best with npm 3.

Install

$ npm install --save virtual-dom@~2.0.0 dom-delegator
$ npm install --save-dev thermometer

Usage

See the tests and the sample component for a full example.

API

thermometer.createComponent(Component, data, callback) -> undefined / function

When a callback is omitted, a partially applied function will be returned for the Component.

Component

Required
Type: function

A component constructor which is expected to return an observable state. It should also have a Component.render function that returns a vtree from virtual-dom.

data

Type: object
Default: undefined

Initial data to pass to the component.

callback

Type: function
Arguments: state, element, done

state

Type: function

The observable state returned by Component

element

Type: HTMLElement

The component's element in the DOM.

done

Type: function

A function that will remove the element from the DOM.

License

MIT © Ben Drucker