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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package piv
import (
"errors"
"strings"
"testing"
)
func runContextTest(t *testing.T, f func(t *testing.T, c *scContext)) {
ctx, err := newSCContext()
if err != nil {
t.Fatalf("creating context: %v", err)
}
defer func() {
if err := ctx.Close(); err != nil {
t.Errorf("closing context: %v", err)
}
}()
f(t, ctx)
}
func TestContextClose(t *testing.T) {
runContextTest(t, func(t *testing.T, c *scContext) {})
}
func TestContextListReaders(t *testing.T) {
runContextTest(t, testContextListReaders)
}
func testContextListReaders(t *testing.T, c *scContext) {
if _, err := c.ListReaders(); err != nil {
t.Errorf("listing readers: %v", err)
}
}
func runHandleTest(t *testing.T, f func(t *testing.T, h *scHandle)) {
runContextTest(t, func(t *testing.T, c *scContext) {
readers, err := c.ListReaders()
if err != nil {
t.Fatalf("listing smartcard readers: %v", err)
}
reader := ""
for _, r := range readers {
if strings.Contains(strings.ToLower(r), "yubikey") {
reader = r
break
}
}
if reader == "" {
t.Skip("could not find yubikey, skipping testing")
}
h, err := c.Connect(reader)
if err != nil {
t.Fatalf("connecting to %s: %v", reader, err)
}
defer func() {
if err := h.Close(); err != nil {
t.Errorf("disconnecting from handle: %v", err)
}
}()
f(t, h)
})
}
func TestHandle(t *testing.T) {
runHandleTest(t, func(t *testing.T, h *scHandle) {})
}
func TestTransaction(t *testing.T) {
runHandleTest(t, func(t *testing.T, h *scHandle) {
tx, err := h.Begin()
if err != nil {
t.Fatalf("beginning transaction: %v", err)
}
if err := tx.Close(); err != nil {
t.Fatalf("closing transaction: %v", err)
}
})
}
func TestErrors(t *testing.T) {
var tests = []struct {
sw1, sw2 byte
isErrNotFound bool
isAuthErr bool
retries int
desc string
}{
{0x68, 0x82, false, false, 0, "secure messaging not supported"},
{0x63, 0x00, false, true, 0, "verification failed"},
{0x63, 0xc0, false, true, 0, "verification failed (0 retries remaining)"},
{0x63, 0xc1, false, true, 1, "verification failed (1 retry remaining)"},
{0x63, 0xcf, false, true, 15, "verification failed (15 retries remaining)"},
{0x63, 0x01, false, true, 1, "verification failed (1 retry remaining)"},
{0x63, 0x0f, false, true, 15, "verification failed (15 retries remaining)"},
{0x69, 0x83, false, true, 0, "authentication method blocked"},
{0x6a, 0x82, true, false, 0, "data object or application not found"},
}
for _, tc := range tests {
err := &apduErr{tc.sw1, tc.sw2}
if errors.Is(err, ErrNotFound) != tc.isErrNotFound {
var s string
if !tc.isErrNotFound {
s = " not"
}
t.Errorf("%q should%s be ErrNotFound", tc.desc, s)
}
var authErr AuthErr
if errors.As(err, &authErr) != tc.isAuthErr {
var s string
if !tc.isAuthErr {
s = " not"
}
t.Errorf("%q should%s be AuthErr", tc.desc, s)
}
if authErr.Retries != tc.retries {
t.Errorf("%q retries should be %d, got %d", tc.desc, tc.retries, authErr.Retries)
}
if !strings.Contains(err.Error(), tc.desc) {
t.Errorf("Error %v should contain text %v", err, tc.desc)
}
}
}
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