checker/luhn_test.go
Onur Cinar bdb9c8ea9b
Version v2. (#158)
# Describe Request

Version v2.

# Change Type

New version.
2024-12-29 05:12:21 -08:00

83 lines
1.3 KiB
Go

// Copyright (c) 2023-2024 Onur Cinar.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
// https://github.com/cinar/checker
package v2_test
import (
"fmt"
"testing"
v2 "github.com/cinar/checker/v2"
)
func ExampleIsLUHN() {
_, err := v2.IsLUHN("4012888888881881")
if err != nil {
fmt.Println(err)
}
}
func TestIsLUHNInvalid(t *testing.T) {
_, err := v2.IsLUHN("123456789")
if err == nil {
t.Fatal("expected error")
}
}
func TestIsLUHNInvalidDigits(t *testing.T) {
_, err := v2.IsLUHN("ABCD")
if err == nil {
t.Fatal("expected error")
}
}
func TestIsLUHNValid(t *testing.T) {
_, err := v2.IsLUHN("4012888888881881")
if err != nil {
t.Fatal(err)
}
}
func TestCheckLUHNNonString(t *testing.T) {
defer FailIfNoPanic(t, "expected panic")
type Card struct {
Number int `checkers:"luhn"`
}
card := &Card{}
v2.CheckStruct(card)
}
func TestCheckLUHNInvalid(t *testing.T) {
type Card struct {
Number string `checkers:"luhn"`
}
card := &Card{
Number: "123456789",
}
_, ok := v2.CheckStruct(card)
if ok {
t.Fatal("expected error")
}
}
func TestCheckLUHNValid(t *testing.T) {
type Card struct {
Number string `checkers:"luhn"`
}
card := &Card{
Number: "79927398713",
}
_, ok := v2.CheckStruct(card)
if !ok {
t.Fatal("expected valid")
}
}