[pl_PL] Handle state.

src/Faker/Provider/pl_PL/Address.php

@@ -202,4 +202,9 @@ public function streetName()
     {
         return static::randomElement(static::$street);
     }
+
+    public function state()
+    {
+        return static::randomElement(static::$state);
+    }
 }

test/Faker/Provider/pl_PL/AddressTest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Faker\Provider\pl_PL;
+
+use Faker\Generator;
+
+class AddressTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var Generator
+     */
+    private $faker;
+
+    public function setUp()
+    {
+        $faker = new Generator();
+        $faker->addProvider(new Address($faker));
+        $this->faker = $faker;
+    }
+
+    /**
+     * Test the validity of state
+     */
+    public function testState()
+    {
+        $state = $this->faker->state();
+        $this->assertNotEmpty($state);
+        $this->assertInternalType('string', $state);
+        $this->assertRegExp('/[a-z]+/', $state);
+    }
+}