Add Faker::Finance.vat_number

CHANGELOG.md

@@ -19,6 +19,7 @@
 - [PR #1329](https://github.com/stympy/faker/pull/1329) Update docs on behavior of price [@softwaregravy](https://github.com/softwaregravy)
 
 ### Feature Request
+- [PR #1348](https://github.com/stympy/faker/pull/1348) Add Faker::Finance.vat_number [@vbrazo](https://github.com/vbrazo)
 - [PR #1342](https://github.com/stympy/faker/pull/1342) Added Faker::CryptoCoin scope [@jacksonpires](https://github.com/jacksonpires)
 - [PR #1338](https://github.com/stympy/faker/pull/1338) Add new translations to the en-ZA locale [@bradleymarques](https://github.com/bradleymarques)
 - [PR #1341](https://github.com/stympy/faker/pull/1341) Add Faker::Construction [@benwyrosdick](https://github.com/benwyrosdick)

doc/finance.md

@@ -5,4 +5,8 @@
 Faker::Finance.credit_card #=> "3018-348979-1853"
 Faker::Finance.credit_card(:mastercard) #=> "6771-8921-2291-6236"
 Faker::Finance.credit_card(:mastercard, :visa) #=> "4448-8934-1277-7195"
+
+# Random vat_number
+Faker::Finance.vat_number #=> "BR38.395.329/2471-83"
+Faker::Finance.vat_number('DE') #=> "DE593306671"
 ```

lib/faker/finance.rb

@@ -18,12 +18,23 @@ def credit_card(*types)
           multiplier = (multiplier == 2 ? 1 : 2)
           sum + (digit * multiplier).to_s.split('').map(&:to_i).inject(0) { |digit_sum, cur| digit_sum + cur }
         end
+
         # the sum plus whatever the last digit is must be a multiple of 10. So, the
         # last digit must be 10 - the last digit of the sum.
         luhn_digit = (10 - (luhn_sum % 10)) % 10
 
         template.gsub('L', luhn_digit.to_s)
       end
+
+      def vat_number(country = 'BR')
+        numerify(fetch("finance.vat_number.#{country}"))
+      rescue I18n::MissingTranslationData
+        raise ArgumentError, "Could not find vat number for #{country}"
+      end
+
+      def vat_number_keys
+        translate('faker.finance.vat_number').keys
+      end
     end
   end
 end

lib/locales/en/finance.yml

@@ -48,3 +48,63 @@ en:
         - /6706#########{5,6}L/
         - /6771#########{5,6}L/
         - /6709#########{5,6}L/
+      vat_number:
+        AT: "ATU########"
+        AR: "AR###########"
+        AU: "AU###########"
+        BR: "BR##.###.###/####-##"
+        BY: "УНП #########"        
+        BE: "BE0#########"
+        BG:
+        - "BG#########"
+        - "BG##########"
+        CH: "CH######"
+        CL: "CL########-#"
+        CZ:
+        - "CZ########"
+        - "CZ#########"
+        - "CZ##########"
+        DK: "DK## ## ## ##"
+        EC: "EC#############"
+        EE: "EE#########"
+        FI: "FI########"
+        DE: "DE#########"
+        GB:
+        - "GB### #### ##"
+        - "GB### #### ## ###"
+        - "GBGD###"
+        - "GBHA###"
+        - "GB888 8### ##"
+        GR: "EL#########"
+        HR: "HR### ### ### ##"
+        "NO": "NO#########"
+        HU: "HU########"
+        IT: "IT##########"
+        LT:
+        - "LT#########"
+        - "LT############"
+        LU: "LU########"
+        LV: "LV###########"
+        MT: "MT########"
+        MX: "MX#### ###### ###"
+        PH: "PH### ### ### ###"
+        PL: "PL##########"
+        PT: "PT#########"
+        RO:
+        - "RO##"
+        - "RO###"
+        - "RO####"
+        - "RO#####"
+        - "RO######"
+        - "RO#######"
+        - "RO########"
+        - "RO#########"
+        - "RO##########"
+        RU:
+        - "RU##########"
+        - "RU############"
+        SE: "SE##########01"
+        SI: "SI########"
+        SK: "SK##########"
+        SM: "SM#####"
+        UA: "UA##########"

test/test_faker_finance.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require_relative 'test_helper'
+
+class TestFakerFinance < Test::Unit::TestCase
+  def setup
+    Faker::Config.locale = nil
+  end
+
+  def test_vat_number
+    assert Faker::Finance.vat_number.match(/\w+/)
+  end
+
+  def test_vat_number_with_invalid_params
+    assert_raise ArgumentError do
+      Faker::Finance.vat_number(Faker::Lorem.word)
+    end
+  end
+
+  def test_vat_number_with_valid_params
+    Faker::Finance.vat_number_keys.each do |country|
+      assert Faker::Finance.vat_number(country).match(/\w+/)
+    end
+  end
+end

test/test_helper.rb

@@ -3,7 +3,7 @@
 require 'simplecov'
 SimpleCov.formatter = SimpleCov::Formatter::HTMLFormatter
 SimpleCov.start do
-  add_filter ['.bundle', 'test', 'lib/extensions']
+  add_filter ['.bundle', 'lib/extensions', 'test']
 end
 
 require 'test/unit'