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// Sample rfc_6238 test data - should be of length "8"

const testDatas = [
  // ...
  { seconds: 3060, algorithm: 'sha1', expected_token: '00629694' },
  { seconds: 4620, algorithm: 'sha256', expected_token: '00836417' },
  { seconds: 5100, algorithm: 'sha512', expected_token: '00458766' }
]

Hotp.prototype.validate = function (data) {
    const expectedToken = data.token;
    const counter = data.counter;
    const secret = data.secret;
    const window = data.window;
    const num_digits = this.options.num_digits;
    **const algorithm = data.algorithm;**

let isValid = false;
let window_frame = counter + (window || 0);

let i = counter;
while(i <= window_frame && !isValid){
	let token = this.createToken({num_digits: num_digits,counter:i,secret: secret,encoding: data.encoding ,**algorithm: data.algorithm**});
	if (token.toString() === expectedToken) {
		isValid = true;
	}
	i++;
}
return isValid;