nebula/cmd/nebula-cert/keygen_test.go

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package main
import (
"bytes"
"io/ioutil"
"os"
"testing"
"github.com/slackhq/nebula/cert"
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"github.com/stretchr/testify/assert"
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)
//TODO: test file permissions
func Test_keygenSummary(t *testing.T) {
assert.Equal(t, "keygen <flags>: create a public/private key pair. the public key can be passed to `nebula-cert sign`", keygenSummary())
}
func Test_keygenHelp(t *testing.T) {
ob := &bytes.Buffer{}
keygenHelp(ob)
assert.Equal(
t,
"Usage of "+os.Args[0]+" keygen <flags>: create a public/private key pair. the public key can be passed to `nebula-cert sign`\n"+
" -out-key string\n"+
" \tRequired: path to write the private key to\n"+
" -out-pub string\n"+
" \tRequired: path to write the public key to\n",
ob.String(),
)
}
func Test_keygen(t *testing.T) {
ob := &bytes.Buffer{}
eb := &bytes.Buffer{}
// required args
assertHelpError(t, keygen([]string{"-out-pub", "nope"}, ob, eb), "-out-key is required")
assert.Equal(t, "", ob.String())
assert.Equal(t, "", eb.String())
assertHelpError(t, keygen([]string{"-out-key", "nope"}, ob, eb), "-out-pub is required")
assert.Equal(t, "", ob.String())
assert.Equal(t, "", eb.String())
// failed key write
ob.Reset()
eb.Reset()
args := []string{"-out-pub", "/do/not/write/pleasepub", "-out-key", "/do/not/write/pleasekey"}
assert.EqualError(t, keygen(args, ob, eb), "error while writing out-key: open /do/not/write/pleasekey: "+NoSuchDirError)
assert.Equal(t, "", ob.String())
assert.Equal(t, "", eb.String())
// create temp key file
keyF, err := ioutil.TempFile("", "test.key")
assert.Nil(t, err)
defer os.Remove(keyF.Name())
// failed pub write
ob.Reset()
eb.Reset()
args = []string{"-out-pub", "/do/not/write/pleasepub", "-out-key", keyF.Name()}
assert.EqualError(t, keygen(args, ob, eb), "error while writing out-pub: open /do/not/write/pleasepub: "+NoSuchDirError)
assert.Equal(t, "", ob.String())
assert.Equal(t, "", eb.String())
// create temp pub file
pubF, err := ioutil.TempFile("", "test.pub")
assert.Nil(t, err)
defer os.Remove(pubF.Name())
// test proper keygen
ob.Reset()
eb.Reset()
args = []string{"-out-pub", pubF.Name(), "-out-key", keyF.Name()}
assert.Nil(t, keygen(args, ob, eb))
assert.Equal(t, "", ob.String())
assert.Equal(t, "", eb.String())
// read cert and key files
rb, _ := ioutil.ReadFile(keyF.Name())
lKey, b, err := cert.UnmarshalX25519PrivateKey(rb)
assert.Len(t, b, 0)
assert.Nil(t, err)
assert.Len(t, lKey, 32)
rb, _ = ioutil.ReadFile(pubF.Name())
lPub, b, err := cert.UnmarshalX25519PublicKey(rb)
assert.Len(t, b, 0)
assert.Nil(t, err)
assert.Len(t, lPub, 32)
}