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// Copyright 2016 Google LLC. All Rights Reserved.
//
// 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
//
// http://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 x509util_test
import (
"encoding/pem"
"testing"
"github.com/google/certificate-transparency-go/x509"
"github.com/google/certificate-transparency-go/x509util"
)
func TestLoadSingleCertFromPEMs(t *testing.T) {
for _, p := range []string{pemCACert, pemCACertWithOtherStuff, pemCACertDuplicated} {
pool := x509util.NewPEMCertPool()
ok := pool.AppendCertsFromPEM([]byte(p))
if !ok {
t.Fatal("Expected to append a certificate ok")
}
if got, want := len(pool.Subjects()), 1; got != want {
t.Fatalf("Got %d cert(s) in the pool, expected %d", got, want)
}
}
}
func TestBadOrEmptyCertificateRejected(t *testing.T) {
for _, p := range []string{pemUnknownBlockType, pemCACertBad} {
pool := x509util.NewPEMCertPool()
ok := pool.AppendCertsFromPEM([]byte(p))
if ok {
t.Fatal("Expected appending no certs")
}
if got, want := len(pool.Subjects()), 0; got != want {
t.Fatalf("Got %d cert(s) in pool, expected %d", got, want)
}
}
}
func TestLoadMultipleCertsFromPEM(t *testing.T) {
pool := x509util.NewPEMCertPool()
ok := pool.AppendCertsFromPEM([]byte(pemCACertMultiple))
if !ok {
t.Fatal("Rejected valid multiple certs")
}
if got, want := len(pool.Subjects()), 2; got != want {
t.Fatalf("Got %d certs in pool, expected %d", got, want)
}
}
func TestIncluded(t *testing.T) {
certs := [2]*x509.Certificate{parsePEM(t, pemCACert), parsePEM(t, pemFakeCACert)}
// Note: tests are cumulative
tests := []struct {
cert *x509.Certificate
want [2]bool
}{
{cert: nil, want: [2]bool{false, false}},
{cert: nil, want: [2]bool{false, false}},
{cert: certs[0], want: [2]bool{true, false}},
{cert: nil, want: [2]bool{true, false}},
{cert: certs[0], want: [2]bool{true, false}},
{cert: certs[1], want: [2]bool{true, true}},
{cert: nil, want: [2]bool{true, true}},
{cert: certs[1], want: [2]bool{true, true}},
}
pool := x509util.NewPEMCertPool()
for _, test := range tests {
if test.cert != nil {
pool.AddCert(test.cert)
}
for i, cert := range certs {
got := pool.Included(cert)
if got != test.want[i] {
t.Errorf("pool.Included(cert[%d])=%v, want %v", i, got, test.want[i])
}
}
}
}
func parsePEM(t *testing.T, pemCert string) *x509.Certificate {
var block *pem.Block
block, _ = pem.Decode([]byte(pemCert))
if block == nil || block.Type != "CERTIFICATE" || len(block.Headers) != 0 {
t.Fatal("No PEM data found")
}
cert, err := x509.ParseCertificate(block.Bytes)
if x509.IsFatal(err) {
t.Fatalf("Failed to parse PEM certificate: %v", err)
}
return cert
}
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