88 lines
1.5 KiB
Go
88 lines
1.5 KiB
Go
package card
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import (
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"errors"
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"testing"
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)
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func TestValidate(t *testing.T) {
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tests := []struct {
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name string
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number string
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wantErr error
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}{
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{
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name: "empty card number",
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number: "",
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wantErr: ErrCardRequired,
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},
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{
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name: "card number is too short",
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number: "123456789",
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wantErr: ErrCardLength,
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},
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{
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name: "card number is too long",
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number: "12345678901234567",
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wantErr: ErrCardLength,
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},
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{
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name: "card number contains letters",
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number: "603799ABC4567890",
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wantErr: ErrCardNumeric,
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},
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{
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name: "card number contains spaces",
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number: "6037 912 3456 78",
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wantErr: ErrCardNumeric,
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},
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{
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name: "valid card number structure",
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number: "6037991234567890",
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wantErr: nil,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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err := Validate(tt.number)
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if !errors.Is(err, tt.wantErr) {
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t.Errorf("Validate() error = %v, want %v", err, tt.wantErr)
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}
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})
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}
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}
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func TestMask(t *testing.T) {
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tests := []struct {
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name string
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number string
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want string
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}{
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{
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name: "valid card number",
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number: "6037997512345678",
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want: "603799******5678",
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},
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{
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name: "invalid card number",
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number: "603799",
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want: "",
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},
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{
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name: "non numeric card number",
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number: "603799ABC2345678",
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want: "",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := Mask(tt.number); got != tt.want {
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t.Errorf("Mask() = %q, want %q", got, tt.want)
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}
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})
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}
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}
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