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build/node_modules/jpegtran-bin/test/test.js

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+'use strict';
+/* eslint-env mocha */
+var assert = require('assert');
+var execFile = require('child_process').execFile;
+var fs = require('fs');
+var path = require('path');
+var BinBuild = require('bin-build');
+var binCheck = require('bin-check');
+var compareSize = require('compare-size');
+var mkdirp = require('mkdirp');
+var rimraf = require('rimraf');
+
+var tmp = path.join(__dirname, 'tmp');
+
+beforeEach(function () {
+	mkdirp.sync(tmp);
+});
+
+afterEach(function () {
+	rimraf.sync(tmp);
+});
+
+it('rebuild the jpegtran binaries', function (cb) {
+	var cfg = [
+		'./configure --disable-shared',
+		'--prefix="' + tmp + '" --bindir="' + tmp + '"'
+	].join(' ');
+
+	new BinBuild()
+		.src('https://downloads.sourceforge.net/project/libjpeg-turbo/1.5.1/libjpeg-turbo-1.5.1.tar.gz')
+		.cmd(cfg)
+		.cmd('make install')
+		.run(function (err) {
+			if (err) {
+				cb(err);
+				return;
+			}
+
+			assert(fs.statSync(path.join(tmp, 'jpegtran')).isFile());
+			cb();
+		});
+});
+
+it('return path to binary and verify that it is working', function () {
+	var args = [
+		'-outfile', path.join(tmp, 'test.jpg'),
+		path.join(__dirname, 'fixtures/test.jpg')
+	];
+
+	return binCheck(require('../'), args).then(assert);
+});
+
+it('minify a JPG', function (cb) {
+	var src = path.join(__dirname, 'fixtures/test.jpg');
+	var dest = path.join(tmp, 'test.jpg');
+	var args = [
+		'-outfile', dest,
+		src
+	];
+
+	execFile(require('../'), args, function (err) {
+		if (err) {
+			cb(err);
+			return;
+		}
+
+		compareSize(src, dest, function (err, res) {
+			if (err) {
+				cb(err);
+				return;
+			}
+
+			assert(res[dest] < res[src]);
+			cb();
+		});
+	});
+});