snabbdom-chai
Flexible chai matchers for snabbdom
Usage
Basics:
expect(tree).to.have.tag('div');
expect(tree).to.have.text('hello');
expect(tree).to.have.class('foo');
expect(tree).to.have.classes(['foo', 'bar', 'baz']);
expect(tree).to.have.styles({ left: '10px', top: '0px', width: '20px' });
expect(tree).to.have.children(3);
expect(tree).to.have.attribute('src', 'http://first-image.png');Subtree expectations:
expect(tree).to.have.a.subtree.with.tag('div').inside;
expect(tree).to.have.a.subtree.with.text('hello').inside;
expect(tree).to.have.a.subtree.with.class('foo').inside;
expect(tree).to.have.a.subtree.with.classes(['foo', 'bar', 'baz']).inside
expect(tree).to.have.a.subtree.with.styles({ left: '10px', top: '0px', width: '20px' }).inside;Important! To use subtree expectations you must end your chai matchers with '
inside'. If you fail to do this, no assertion will be made by chai, and the expectation will always pass (the value oftreewill be ignored).
Chaining:
expect(tree).to.have.tag('div').and.text('world');
expect(tree).to.have.class('foo').and.text('world').and.style({ display: 'none' });
expect(tree).to.have.a.subtree.with.tag('div').with.class('foo').inside;
expect(tree).to.have.a.subtree.with.tag('h1').class('bar').style({ color: 'red' }).and.text('world').inside;Locating:
expect(tree).at.root('some-class').to.have.tag('div');
expect(tree).at.root('some-class').to.have.a.subtree.with.tag('h1').inside;Delegating to core chai:
expect(tree).to.have.children.below(3);
expect(tree).to.have.classes.that.include.members(['hide', 'clearfix']);
expect(tree).to.have.text.that.has.length.within(2,4);
expect(tree).to.have.styles.that.have.all.keys('left', 'display', 'background');Installation
npm install snabbdom-chai --save-dev
var chai = require('chai');
chai.use(require('snabbdom-chai'));License
MIT License.
Copyright © 2016 James Lawson