added tax support for de_DE

src/Faker/Provider/de_DE/Payment.php

@@ -53,4 +53,24 @@ public static function bank()
  {
  return static::randomElement(static::$banks);
  }
+
+ /**
+ * Value Added Tax (VAT)
+ *
+ * @example 'DE123456789', ('spaced') 'DE 123456789'
+ *
+ * @see http://ec.europa.eu/taxation_customs/vies/faq.html?locale=en#item_11
+ * @see http://www.iecomputersystems.com/ordering/eu_vat_numbers.htm
+ * @see http://en.wikipedia.org/wiki/VAT_identification_number
+ *
+ * @param bool $spacedNationalPrefix
+ *
+ * @return string VAT Number
+ */
+ public static function vat($spacedNationalPrefix = false)
+ {
+ $prefix = $spacedNationalPrefix ? "DE " : "DE";
+
+ return sprintf("%s%d", $prefix, self::randomNumber(9, true));
+ }
 }

src/Faker/Provider/de_DE/Person.php

@@ -126,4 +126,36 @@ public static function suffix()
  {
  return static::randomElement(static::$suffix);
  }
+
+ /**
+ * Tax Identification Number (TIN)
+ *
+ * @example '76334701345'
+ *
+ * @see https://ec.europa.eu/taxation_customs/tin/pdf/de/TIN_-_country_sheet_DE_de.pdf
+ *
+ * @return string TIN Number
+ */
+ public function tin()
+ {
+ $tin = $this->randomDigitNot(0).$this->randomNumber(9);
+
+ $product = 0;
+ for($i = 0; $i < strlen($tin); $i++) {
+ $sum = ($tin[$i] + $product) % 10;
+
+ if ($sum == 0) {
+ $sum = 10;
+ }
+
+ $product = ($sum * 2) % 11;
+ }
+
+ $checkDigit = 11 - $product;
+ if ($checkDigit == 10) {
+ $checkDigit = 0;
+ }
+
+ return $tin . $checkDigit;
+ }
 }

test/Faker/Provider/de_DE/PaymentTest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Faker\Test\Provider\de_DE;
+
+use Faker\Generator;
+use Faker\Provider\de_DE\Payment;
+use PHPUnit\Framework\TestCase;
+
+final class PaymentTest extends TestCase
+{
+
+ /**
+ * @var Generator
+ */
+ private $faker;
+
+ protected function setUp()
+ {
+ $faker = new Generator();
+ $faker->addProvider(new Payment($faker));
+ $this->faker = $faker;
+ }
+
+ public function testVatIsValid()
+ {
+ $unspacedVat = $this->faker->vat();
+ $vat = $this->faker->vat(true);
+ $this->assertRegExp('/^(DE \d{9})$/', $vat);
+ $this->assertRegExp('/^(DE\d{9})$/', $unspacedVat);
+ }
+}

test/Faker/Provider/de_DE/PersonTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Faker\Test\Provider\de_DE;
+
+use Faker\Generator;
+use Faker\Provider\de_DE\Person;
+use PHPUnit\Framework\TestCase;
+
+final class PersonTest extends TestCase
+{
+
+ /**
+ * @var Generator
+ */
+ private $faker;
+
+ protected function setUp()
+ {
+ $faker = new Generator();
+ $faker->addProvider(new Person($faker));
+ $this->faker = $faker;
+ }
+
+ public function testTinIsValid()
+ {
+ $tin = $this->faker->tin();
+ $this->assertRegExp('/^(\d{11})$/', $tin);
+ }
+}