public function testGetRegionCodeForNumber()
 {
     $this->assertEquals(RegionCode::BS, $this->phoneUtil->getRegionCodeForNumber(self::$bsNumber));
     $this->assertEquals(RegionCode::US, $this->phoneUtil->getRegionCodeForNumber(self::$usNumber));
     $this->assertEquals(RegionCode::GB, $this->phoneUtil->getRegionCodeForNumber(self::$gbMobile));
     $this->assertEquals(RegionCode::UN001, $this->phoneUtil->getRegionCodeForNumber(self::$internationalTollFree));
 }