'use strict'; var assert = require('assert'); var fixtures = require('../fixtures'); var sharp = require('../../index'); describe('Bandbool per-channel boolean operations', function() { [ sharp.bool.and, sharp.bool.or, sharp.bool.eor ] .forEach(function(op) { it(op + ' operation', function(done) { sharp(fixtures.inputPngBooleanNoAlpha) .bandbool(op) .toBuffer(function(err, data, info) { if (err) throw err; assert.strictEqual(200, info.width); assert.strictEqual(200, info.height); assert.strictEqual(1, info.channels); fixtures.assertSimilar(fixtures.expected('bandbool_' + op + '_result.png'), data, done); }); }); }); it('Invalid operation', function() { assert.throws(function() { sharp().bandbool('fail'); }); }); it('Missing operation', function() { assert.throws(function() { sharp().bandbool(); }); }); });