Add mobileNumber() method for nb_NO

readme.md

@@ -1493,6 +1493,17 @@ echo $faker->btw; // "NL123456789B01" - Dutch Value Added Tax number (alias)
 echo $faker->idNumber; // "111222333" - Dutch Personal identification number (BSN)
 ```
 
+### `Faker\Provider\nb_NO\MobileNumber`
+
+```php
+<?php
+
+// Generates a random Norwegian mobile phone number
+echo $faker->mobileNumber; // "+4799988777"
+echo $faker->mobileNumber; // "999 88 777"
+echo $faker->mobileNumber; // "99988777"
+```
+
 ### `Faker\Provider\nb_NO\Payment`
 
 ```php

src/Faker/Provider/nb_NO/PhoneNumber.php

@@ -19,4 +19,23 @@ class PhoneNumber extends \Faker\Provider\PhoneNumber
         '9#######',
         '4#######',
     );
+
+    /**
+     * @var array Norweign mobile number formats
+     */
+    protected static $mobileFormats = array(
+        '+474#######',
+        '+479#######',
+        '9## ## ###',
+        '4## ## ###',
+        '9#######',
+        '4#######',
+    );
+
+    public function mobileNumber()
+    {
+        $format = static::randomElement(static::$mobileFormats);
+
+        return self::numerify($this->generator->parse($format));
+    }
 }

test/Faker/Provider/nb_NO/PhoneNumberTest.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Faker\Test\Provider\nb_NO;
+
+use Faker\Generator;
+use Faker\Provider\nb_NO\PhoneNumber;
+use PHPUnit\Framework\TestCase;
+
+class PhoneNumberTest extends TestCase
+{
+    private $faker;
+
+    public function setUp()
+    {
+        $faker = new Generator();
+        $faker->addProvider(new PhoneNumber($faker));
+        $this->faker = $faker;
+    }
+
+    public function testMobileNumber()
+    {
+        for ($i = 0; $i < 10; $i++) {
+            $number = $this->faker->mobileNumber;
+
+            // Check that number starts with 4 or 9 when country code is included
+            if (strlen($number) === 11) {
+                $testChar = substr($number, 3, 1);
+                $this->assertEquals(11, strlen($number));
+                $this->assertContains($testChar, array(4, 9));
+                $this->assertRegExp('/^\+47[49]{1}[0-9]{7}$/', $number);
+            }
+
+            // Check numbers start with 4 or 9 when no country code is included
+            if (strlen($number) === 10 || strlen($number) === 8) {
+                $testChar = substr($number, 0, 1);
+                $this->assertContains($testChar, array(4, 9));
+            }
+
+            if (strlen($number) === 10) {
+                $this->assertRegExp('/^[49]{1}[0-9]{2} [0-9]{2} [0-9]{3}$/', $number);
+            }
+
+            if (strlen($number) === 8) {
+                $this->assertRegExp('/^[49]{1}[0-9]{7}$/', $number);
+            }
+        }
+    }
+}