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hotp_test.go
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hotp_test.go
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// SPDX-FileCopyrightText: 2021 Oleksiy Voronin <me@ovoronin.info>
// SPDX-License-Identifier: MIT
package gotp
import (
"crypto"
_ "crypto/sha512"
"reflect"
"testing"
)
func TestHOTPGenerate(t *testing.T) {
key := []byte("12345678901234567890")
otp := NewHOTPDigits(key, 0, DefaultDigits)
expected := []string{
"755224",
"287082",
"359152",
"969429",
"338314",
"254676",
"287922",
"162583",
"399871",
"520489",
}
for i := range expected {
actual := otp.CurrentOTP()
if actual != expected[i] {
t.Errorf("Counter: %d, Expected '%s', got '%s'", i, expected[i], actual)
}
}
}
func TestHOTPGenerateSHA512(t *testing.T) {
key := []byte("12345678901234567890")
otp := NewHOTPHash(key, 0, DefaultDigits, -1, crypto.SHA512)
actual := otp.GenerateOTP(1000)
expected := "796611"
if actual != expected {
t.Errorf("Failed to generate code using SHA-512.\nExpected: %s\n Actual: %s", expected, actual)
}
}
func TestHOTPCounter(t *testing.T) {
key := []byte("12345678901234567890")
otp := NewHOTPDigits(key, 100, DefaultDigits)
code1 := otp.CurrentOTP()
if otp.GetCounter() != 101 {
t.Errorf("Internal counter failed to increment")
}
code2 := otp.CurrentOTP()
if otp.GetCounter() != 102 {
t.Errorf("Internal counter failed to increment")
}
if code1 == code2 {
t.Errorf("Subsequent calls to CurrentOTP() must produce different results")
}
}
func TestHOTPVerify(t *testing.T) {
key := []byte("12345678901234567890")
otp := NewHOTPDigits(key, 0, DefaultDigits)
expectedTrue := otp.Verify("338314", 4)
if expectedTrue != true {
t.Errorf("Failed to correctly validate code '338314' at couner 4")
}
expectedFalse := otp.Verify("542321", 12)
if expectedFalse == true {
t.Errorf("Falsely validated code '543321' at couner 12 as correct")
}
}
func TestHotpUrlGenerator(t *testing.T) {
hotp := NewHOTPDigits([]byte("key"), 342, 8)
url := hotp.ProvisioningUri("test@example.com", "Issuer")
expected := "otpauth://hotp/Issuer:test@example.com?counter=342&digits=8&issuer=Issuer&secret=NNSXS"
if url != expected {
t.Errorf("Invalid url generated.\nExpected: %s\n Actual: %s", expected, url)
}
hotp = NewDefaultHOTP([]byte("key"), 2342)
url = hotp.ProvisioningUri("test@example.com", "Issuer")
expected = "otpauth://hotp/Issuer:test@example.com?counter=2342&issuer=Issuer&secret=NNSXS"
if url != expected {
t.Errorf("Invalid url generated.\nExpected: %s\n Actual: %s", expected, url)
}
hotp = NewHOTPHash([]byte("key"), 2342, DefaultDigits, -1, crypto.SHA512)
url = hotp.ProvisioningUri("test@example.com", "Issuer")
expected = "otpauth://hotp/Issuer:test@example.com?algorithm=SHA512&counter=2342&issuer=Issuer&secret=NNSXS"
if url != expected {
t.Errorf("Invalid url generated.\nExpected: %s\n Actual: %s", expected, url)
}
}
func TestHotpUrlParser(t *testing.T) {
data, err := NewHOTPFromUri("otpauth://hotp/test1@example.com?digits=8&issuer=Issuer&secret=NNSXS&counter=10")
if err != nil {
t.Error(err)
}
otp := data.OTP.(*HOTP)
if data.Issuer != "Issuer" {
t.Errorf("Error parsing label from URL")
}
if data.Account != "test1@example.com" {
t.Errorf("Error parsing issuer from URL")
}
if !reflect.DeepEqual(otp.Secret, []byte("key")) {
t.Errorf("Error parsing secret from URL")
}
if otp.Digits != 8 {
t.Errorf("Error parsing digits from URL")
}
if otp.counter != 10 {
t.Errorf("Error setting counter from URL")
}
data, err = NewHOTPFromUri("otpauth://hotp/Issuer:test@example.com:Example?issuer=Overriden&counter=45&secret=NNSXS")
if err != nil {
t.Error(err)
}
otp = data.OTP.(*HOTP)
if otp.Digits != 6 {
t.Errorf("Error setting default digits")
}
if otp.GetCounter() != 45 {
t.Errorf("Error parsing counter from URL")
}
if data.Issuer != "Overriden" {
t.Errorf("Error parsing label from URL")
}
data, err = NewHOTPFromUri("otpauth://hotp/Issuer:test@example.com?algorithm=SHA512&counter=10&secret=NNSXS")
if err != nil {
t.Error(err)
}
otp = data.OTP.(*HOTP)
if data.Issuer != "Issuer" {
t.Errorf("Error parsing label from URL")
}
if otp.GetHash() != crypto.SHA512 {
t.Errorf("Error parsing time step from URL")
}
}
func TestHotpUrlParserErrors(t *testing.T) {
_, err := NewHOTPFromUri("otpauth://totp/test@example.com:Example?digits=8&issuer=test%40example.com&secret=NNSXS&counter=1")
if err == nil {
t.Errorf("Expected to fail because of invalid otp type")
}
_, err = NewHOTPFromUri("not_otpauth://hotp/test@example.com:Example?digits=8&issuer=test%40example.com&secret=NNSXS&counter=1")
if err == nil {
t.Errorf("Expected to fail because of invalid URI schema")
}
_, err = NewHOTPFromUri("otpauth://hotp/test@example.com:Example?digits=8&issuer=test%40example.com&counter=1")
if err == nil {
t.Errorf("Expected to fail because of missing secret")
}
_, err = NewTOTPFromUri("otpauth://hotp/test@example.com:Example?digits=8&issuer=test%40example.com&secret=NNSXS0X&counter=1")
if err == nil {
t.Errorf("Expected to fail because of invalid secret")
}
_, err = NewHOTPFromUri("otpauth://hotp/test@example.com:Example?digits=8&issuer=test%40example.com&secret=NNSXS")
if err == nil {
t.Errorf("Expected to fail because of missing counter")
}
}