Basic testable Silex application with travis, phpunit, composer and gitignore files.

.gitignore

/composer.lock
/vendor

.travis.yml

language: php

php:
  - 5.5
  - 5.4
  - 5.3

before_script:
  - composer install

script: vendor/bin/phpunit

app.php

<?php
// src/app.php

require_once __DIR__.'/../vendor/autoload.php';

$app = new Silex\Application();

$app->get('/', function () use ($app) {
    return '<a href="/hello/world">Link to hello world</a>';
});

$app->get('/hello/{name}', function ($name) use ($app) {
    return 'Hello '.$app->escape($name);
});

return $app;

composer.json

{
    "require": {
        "silex/silex": "1.*"
    },
    "require-dev": {
        "phpunit/phpunit": "*",
        "symfony/browser-kit": "*"
    },
    "autoload": {
        "psr-0": {"APP_NAMESPACE_HERE\\": "src/"}
    }
}

index.php

<?php
// web/index.php

$app = require_once __DIR__ . '/../src/app.php';

$app->run();

phpunit.xml.dist

<?xml version="1.0" encoding="UTF-8"?>
<phpunit backupGlobals="false"
         backupStaticAttributes="false"
         convertErrorsToExceptions="true"
         convertNoticesToExceptions="true"
         convertWarningsToExceptions="true"
         processIsolation="false"
         stopOnFailure="false"
         syntaxCheck="false"
>
    <testsuites>
        <testsuite name="NAME HERE !!! Test Suite">
            <directory>./tests/</directory>
        </testsuite>
    </testsuites>
</phpunit>

server.sh

#command line for php 5.4+ integrated server
php -S 127.0.0.1:8080 web/index.php -t web