node-lwip
Version:
Comprehensive, fast, and simple image processing and manipulation
56 lines (43 loc) • 1.56 kB
JavaScript
// methods should throw errors when arguments are invalid
var should = require("should"),
lwip = require('../../'),
imgs = require('../imgs');
describe('batch.writeFile arguments validation', function() {
var batch;
before(function(done) {
lwip.open(imgs.jpg.rgb, function(err, img) {
batch = img.batch().blur(2);
done(err);
});
});
describe('invalid encoding format', function() {
it('should throw an error', function() {
batch.writeFile.bind(batch, 'res.jpg', 'jjpeg').should.throwError();
});
});
describe('JPEG params', function() {
describe('invalid quality', function() {
it('should throw an error', function() {
batch.writeFile.bind(batch, 'res.jpg', 'jpeg', {
quality: 'foo'
}).should.throwError();
});
});
});
describe('PNG params', function() {
describe('invalid compression', function() {
it('should throw an error', function() {
batch.writeFile.bind(batch, 'res.png', 'png', {
compression: 'foo'
}, function() {}).should.throwError();
});
});
describe('invalid interlaced', function() {
it('should throw an error', function() {
batch.writeFile.bind(batch, 'res.png', 'png', {
interlaced: 'foo'
}, function() {}).should.throwError();
});
});
});
});