public function testToTimestamp()
 {
     CopixI18N::setLang('fr');
     $this->assertEquals(220316400, CopixDateTime::yyyymmddToTimestamp('19761225'));
     $this->assertEquals(880930800, CopixDateTime::yyyymmddToTimestamp('19971201'));
     $this->assertEquals(220316400, CopixDateTime::dateTotimestamp('25/12/1976'));
     CopixI18N::setLang('en');
     $this->assertEquals(220316400, CopixDateTime::dateTotimestamp('12/25/1976'));
     $this->assertEquals(220352466, CopixDateTime::yyyymmddhhiissToTimestamp('19761225100106'));
     $this->assertEquals(880930866, CopixDateTime::yyyymmddhhiissToTimestamp('19971201000106'));
     CopixI18N::setLang('fr');
     $this->assertEquals(CopixDateTime::dateTotimestamp(false), null);
     $this->assertFalse(CopixDateTime::dateTotimestamp('19761225100106'));
     /*
     $this->assertEquals ('19761225000000',CopixDateTime::DateTimeToyyyymmddhhiiss('25/12/1976'));
     timeStampToyyyymmddhhiiss
     yyyymmddhhiissToTimeStamp
     */
 }