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package acme
import (
"bytes"
"crypto/rand"
"crypto/rsa"
"testing"
"time"
)
func TestGeneratePrivateKey(t *testing.T) {
key, err := generatePrivateKey(RSA2048)
if err != nil {
t.Error("Error generating private key:", err)
}
if key == nil {
t.Error("Expected key to not be nil, but it was")
}
}
func TestGenerateCSR(t *testing.T) {
key, err := rsa.GenerateKey(rand.Reader, 512)
if err != nil {
t.Fatal("Error generating private key:", err)
}
csr, err := generateCsr(key, "fizz.buzz", nil)
if err != nil {
t.Error("Error generating CSR:", err)
}
if csr == nil || len(csr) == 0 {
t.Error("Expected CSR with data, but it was nil or length 0")
}
}
func TestPEMEncode(t *testing.T) {
buf := bytes.NewBufferString("TestingRSAIsSoMuchFun")
reader := MockRandReader{b: buf}
key, err := rsa.GenerateKey(reader, 32)
if err != nil {
t.Fatal("Error generating private key:", err)
}
data := pemEncode(key)
if data == nil {
t.Fatal("Expected result to not be nil, but it was")
}
if len(data) != 127 {
t.Errorf("Expected PEM encoding to be length 127, but it was %d", len(data))
}
}
func TestPEMCertExpiration(t *testing.T) {
privKey, err := generatePrivateKey(RSA2048)
if err != nil {
t.Fatal("Error generating private key:", err)
}
expiration := time.Now().Add(365)
expiration = expiration.Round(time.Second)
certBytes, err := generateDerCert(privKey.(*rsa.PrivateKey), expiration, "test.com")
if err != nil {
t.Fatal("Error generating cert:", err)
}
buf := bytes.NewBufferString("TestingRSAIsSoMuchFun")
// Some random string should return an error.
if ctime, err := GetPEMCertExpiration(buf.Bytes()); err == nil {
t.Errorf("Expected getCertExpiration to return an error for garbage string but returned %v", ctime)
}
// A DER encoded certificate should return an error.
if _, err := GetPEMCertExpiration(certBytes); err == nil {
t.Errorf("Expected getCertExpiration to return an error for DER certificates but returned none.")
}
// A PEM encoded certificate should work ok.
pemCert := pemEncode(derCertificateBytes(certBytes))
if ctime, err := GetPEMCertExpiration(pemCert); err != nil || !ctime.Equal(expiration.UTC()) {
t.Errorf("Expected getCertExpiration to return %v but returned %v. Error: %v", expiration, ctime, err)
}
}
type MockRandReader struct {
b *bytes.Buffer
}
func (r MockRandReader) Read(p []byte) (int, error) {
return r.b.Read(p)
}
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