Countries::isCountryCodeInEU(string ) should return false after Brexit transition period ends on Dec 31, 2020

Author: dannyvankooten

src/Countries.php

@@ -3,6 +3,8 @@
 
 namespace Ibericode\Vat;
 
+use DateTime;
+
 /**
  * Class Countries
  *
@@ -279,7 +281,12 @@ public function hasCountryCode(string $code) : bool
     public function isCountryCodeInEU(string $code) : bool
     {
         $eu = ['AT', 'BE', 'BG', 'CY', 'CZ', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'GR', 'HU', 'HR', 'IE', 'IT', 'LT', 'LU', 'LV', 'MT', 'NL', 'PL', 'PT', 'RO', 'SE', 'SI', 'SK'];
-        return in_array($code, $eu);
+
+        // Brexit transition period ends on Dec 31 23:59, so this method should return true only until then
+        if ((new DateTime('now')) < (new DateTime('2021-01-01 00:00:00'))) {
+            $eu[] = 'GB';
+        }
+        return in_array($code, $eu, true);
     }
 
 

tests/CountriesTest.php

@@ -2,6 +2,7 @@
 
 namespace Ibericode\Vat\Tests;
 
+use DateTime;
 use Ibericode\Vat\Countries;
 use Ibericode\Vat\Exception;
 use PHPUnit\Framework\TestCase;
@@ -60,5 +61,14 @@ public function testIsCodeInEU()
         $this->assertFalse($countries->isCountryCodeInEU('FOO'));
         $this->assertFalse($countries->isCountryCodeInEU('US'));
         $this->assertTrue($countries->isCountryCodeInEU('NL'));
+
+        // test for Brexit
+        $now = new DateTime('now');
+        $y2021 = new DateTime('2021-01-01 00:00:00');
+        if ($now > $y2021) {
+            $this->assertFalse($countries->isCountryCodeInEU('GB'));
+        } else {
+            $this->assertTrue($countries->isCountryCodeInEU('GB'));
+        }
     }
 }