public function testSPLIT_PATTERN_VALUENUMBER()
{
$pattern = Parser::SPLIT_PATTERN_VALUENUMBER;
$this->assertEquals(preg_match($pattern, ' 1'), 1, 'The SPLIT_PATTERN_VALUENUMBER pattern did not match a number with a space in front.');
$this->assertEquals(preg_match($pattern, '12221'), 1, 'The SPLIT_PATTERN_VALUENUMBER pattern did not match the number 12221.');
$this->assertEquals(preg_match($pattern, '-12'), 1, 'The SPLIT_PATTERN_VALUENUMBER pattern did not match a negative number.');
$this->assertEquals(preg_match($pattern, ' -42'), 1, 'The SPLIT_PATTERN_VALUENUMBER pattern did not match a negative number with a space in front.');
$this->assertEquals(preg_match($pattern, '-12.5'), 0, 'The SPLIT_PATTERN_VALUENUMBER pattern matched a negative float number.');
$this->assertEquals(preg_match($pattern, '42.5'), 0, 'The SPLIT_PATTERN_VALUENUMBER pattern matched a positive float number.');
}