public function test_of_Locale()
 {
     $loc1 = DecimalStyle::of(Locale::CANADA());
     $this->assertEquals($loc1->getZeroDigit(), '0');
     $this->assertEquals($loc1->getPositiveSign(), '+');
     $this->assertEquals($loc1->getNegativeSign(), '-');
     $this->assertEquals($loc1->getDecimalSeparator(), '.');
 }