gradient-parser/spec/gradient-parser.spec.js
2014-09-06 13:28:43 +02:00

152 lines
4 KiB
JavaScript

'use strict';
var expect = require('expect.js');
var gradientParser = require('gradient-parser');
// [
// {
// type: 'linear-gradient',
// orientation: {
// type: 'directional',
// value: 'right'
// },
// colorStops: [
// {
// type: 'literal',
// value: 'transparent',
// length: {
// value: '10',
// type: 'px'
// }
// },
// {
// type: 'hex',
// value: 'c2c2c2',
// length: {
// value: '10',
// type: 'px'
// }
// }
// ]
// }
// ]
describe('gradient-parser.js', function () {
var ast,
subject;
it('should exist', function () {
expect(typeof gradientParser).to.equal('function');
});
describe('when parsing wrong definition should throw an error', function() {
it('when there\'s one more comma in definitions', function() {
expect(function() {
gradientParser('linear-gradient(red, blue),');
}).to.throwException(/One extra comma/);
});
it('when there\'s one more comma in colors', function() {
expect(function() {
gradientParser('linear-gradient(red, blue,)');
}).to.throwException(/Expected color definition/);
});
it('when there\'s invalid input', function() {
expect(function() {
gradientParser('linear-gradient(red, blue) aaa');
}).to.throwException(/Invalid input not EOF/);
});
it('when there\'s missing open call', function() {
expect(function() {
gradientParser('linear-gradient red, blue');
}).to.throwException(/Missing \(/);
});
it('when there\'s missing comma before color stops', function() {
expect(function() {
gradientParser('linear-gradient(to right red, blue)');
}).to.throwException(/Missing comma before color stops/);
});
it('when there\'s missing color stops', function() {
expect(function() {
gradientParser('linear-gradient(to right, )');
}).to.throwException(/Expected color definition/);
});
it('when there\'s missing closing call', function() {
expect(function() {
gradientParser('linear-gradient(to right, red, blue aaa');
}).to.throwException(/Missing \)/);
});
});
describe('when parsing a simple definition', function() {
beforeEach(function() {
ast = gradientParser('linear-gradient(red, blue)');
subject = ast[0];
});
it('should get the gradient type', function () {
expect(subject.type).to.equal('linear-gradient');
});
it('should get the orientation', function() {
expect(subject.orientation).to.be(undefined);
});
describe('colors', function() {
it('should get all colors', function() {
expect(subject.colorStops).to.have.length(2);
});
describe('first color', function() {
beforeEach(function() {
subject = subject.colorStops[0];
});
it('should get literal type', function() {
expect(subject.type).to.equal('literal');
});
it('should get the right color', function() {
expect(subject.value).to.equal('red');
});
});
describe('second color', function() {
beforeEach(function() {
subject = subject.colorStops[1];
});
it('should get literal type', function() {
expect(subject.type).to.equal('literal');
});
it('should get the right color', function() {
expect(subject.value).to.equal('blue');
});
});
});
});
describe('parse an definition with full color stop', function() {
beforeEach(function() {
ast = gradientParser('linear-gradient(blue 10px, transparent)');
subject = ast[0];
});
describe('the first color', function() {
beforeEach(function() {
subject = subject.colorStops[0];
});
it('should have the length', function() {
expect(subject.length.type).to.equal('px');
expect(subject.length.value).to.equal('10');
});
});
});
});