Command is not being run after && in npm script
<p>Here's my <strong>npm script</strong> (defined in my package.json of course) that I'm running:</p>

<pre><code>  "scripts": {
    "test": "gulp &amp;&amp; mocha-casperjs test/features/specs/*-spec.js"
  }
</code></pre>

<p>for some reason, all my gulp tasks run fine, but my mocha tests never run.  So what I see when gulp is completely done is this:</p>

<pre><code>$ npm test

&gt; someApp@0.0.0 test /Users/me/code/projects/we-do-tdd
&gt; gulp &amp;&amp; mocha-casperjs test/features/specs/*-spec.js

[17:34:50] Using gulpfile ~/code/projects/someApp/gulpfile.js
[17:34:50] Starting 'default'...
[17:34:50] Starting 'bundleApp'...
[17:34:50] Finished 'bundleApp' after 17 ms
[17:34:50] Starting 'watch'...
[17:34:50] Finished 'watch' after 7.33 ms
[17:34:50] Starting 'startApp'...
[17:34:50] Finished 'startApp' after 6.63 ms
[17:34:50] Finished 'default' after 34 ms
</code></pre>

<p><strong>gulpfile</strong></p>

<pre><code>"use strict";

var app = require('./server'),
    gulp = require('gulp'),
    runSequence = require('run-sequence'),
    browserify = require('browserify'),
    source = require('vinyl-source-stream'),
    gutil = require('gulp-util'),
    babelify = require('babelify');

var scriptsCount = 0;

gulp.task('default', function (cb){
    runSequence(['bundleApp','watch'], ['startApp'], cb)
});

gulp.task('watch', function () {
    gulp.watch(['./src/*.js'], ['scripts']);
});

gulp.task('startApp', function (cb) {
    app.listen(3000, cb).on('error', function(err) {
        console.log(err);
    });;
});

gulp.task('bundleApp', function () {
    bundleApp(false);
});

function bundleApp() {
    scriptsCount++;
    var appBundler = browserify({
        entries: './src/components/app.js',
        debug: true
    })

    appBundler
        .transform("babelify", {presets: ["es2015", "react"]})
        .bundle()
        .on('error', gutil.log)
        .pipe(source('bundle.js'))
        .pipe(gulp.dest('./build/app/js'));
}
</code></pre>