/**
* Test basic usage works
*/
public function testGenerate()
{
$a = MWCryptHKDF::generateHex(64);
$b = MWCryptHKDF::generateHex(64);
$this->assertTrue(strlen($a) == 64, "MWCryptHKDF produced fewer bytes than expected");
$this->assertTrue(strlen($b) == 64, "MWCryptHKDF produced fewer bytes than expected");
$this->assertFalse($a == $b, "Two runs of MWCryptHKDF produced the same result.");
}