/**
  * test toNumberFormat
  * expected string
  */
 public function testToNumberFormat()
 {
     $locale = new Zend_Locale('de_AT');
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(0), '0', "string 0 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(0, 'de'), '0', "string 0 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(0, $locale), '0', "string 0 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(-1234567, 'de_AT'), '-1.234.567', "string -1.234.567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567, 'de_AT'), '1.234.567', "string 1.234.567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(0.1234567, 'de_AT'), '0,1234567', "string 0,1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(-1234567.12345, 'de_AT'), '-1.234.567,12345', "string -1.234.567,12345 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, 'de_AT'), '1.234.567,12345', "value 1.234.567,12345 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '##0', 'de_AT'), '1234567', "value 1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '#,#0', 'de_AT'), '1.23.45.67', "value 1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '##0.00', 'de_AT'), '1234567,12', "value 1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '##0.###', 'de_AT'), '1234567,12345', "value 1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '#,#0', 'de_AT'), '1.23.45.67', "value 1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '#,##,##0', 'de_AT'), '12.34.567', "value 1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '#,##0.00', 'de_AT'), '1.234.567,12', "value 1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '#,#0.00', 'de_AT'), '1.23.45.67,12', "value 1234567 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(-1234567.12345, '##0;##0-', 'de_AT'), '1234567-', "string -1.234.567,12345 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567.12345, '##0;##0-', 'de_AT'), '1234567', "string -1.234.567,12345 expected");
     $this->assertEquals(Zend_Locale_Format::toNumberFormat(1234567, '#,##0.00', 'de_AT'), '1.234.567,00', "value 1234567,00 expected");
 }