Constructive description here

vendor/fzaninotto/faker/test/Faker/Provider/CompanyTest.php

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+<?php
+
+namespace Faker\Test\Provider;
+
+use Faker\Generator;
+use Faker\Provider\Company;
+use Faker\Provider\Lorem;
+
+class CompanyTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var Generator
+     */
+    private $faker;
+
+    public function setUp()
+    {
+        $faker = new Generator();
+        $faker->addProvider(new Company($faker));
+        $faker->addProvider(new Lorem($faker));
+        $this->faker = $faker;
+    }
+
+    public function testJobTitle()
+    {
+        $jobTitle = $this->faker->jobTitle();
+        $pattern = '/^[A-Za-z]+$/';
+        $this->assertRegExp($pattern, $jobTitle);
+    }
+}