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definition_test.go
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definition_test.go
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package reign
import (
"encoding/json"
"errors"
"io/ioutil"
"os"
"strings"
"testing"
)
func jsonbytes(b []byte) string {
return strings.Replace(string(b), "\n", "\\n", -1)
}
func TestJSONSpecification(t *testing.T) {
defer setConnections(nil)
validJSON := []byte(`
{
"nodes": [
{
"id": 0,
"address": "localhost:80"
},
{ "id": 1,
"address": "10.2.8.33:90",
"listen_address": "192.18.28.22:90"
}
],
"node_cert_pem": "` + jsonbytes(node1_1Cert) + `",
"node_key_pem": "` + jsonbytes(node1_1Key) + `",
"cluster_cert_pem": "` + jsonbytes(signing1Cert) + `"
}`)
cluster, _, err := createFromJSON(validJSON, 1, NullLogger)
if err != nil {
t.Fatal("Got error constructing valid cluster:", err)
}
if cluster.hash == 0 {
t.Fatal("Cluster hash not set")
}
cluster.Terminate()
// Test validation of certificate's common name.
_, _, err = createFromJSON(validJSON, 0, NullLogger)
if err == nil {
t.Fatal("Expected an error creating the cluster.")
}
// Test the alternative creation methods
specFile, cleanup := tmpFile("spec_tmp_file", validJSON)
defer cleanup()
// Can we create from a good spec file?
service, _, err := CreateFromSpecFile(specFile, 1, NullLogger)
if err != nil || service == nil {
t.Fatal("Error using CreateFromSpecFile:", err)
}
service.Terminate()
_, _, err = CreateFromSpecFile("doesnotexist", 1, NullLogger)
if err == nil {
t.Fatal("Can somehow successfully create a cluster from nonexistant file")
}
// Can we create from a reader containing a good spec file?
goodReader, err := os.Open(specFile)
if err != nil {
t.Fatal(err)
}
defer func() {
if cErr := goodReader.Close(); cErr != nil {
t.Log(cErr)
}
}()
service, _, err = CreateFromReader(goodReader, 1, NullLogger)
if service == nil || err != nil {
t.Fatal("Can't create from reader properly")
}
service.Terminate()
// and does that fail properly?
badReader := FakeReader{errors.New("a wacky error")}
_, _, err = createFromReader(badReader, 1, NullLogger)
if err == nil || connections != nil {
t.Fatal("bad reader still somehow yielded a cluster")
}
// can we create from arbitrarily-sourced JSON?
_, _, err = createFromJSON([]byte("mogglegoogly!"), 1, NullLogger)
if err == nil {
t.Fatal("Lunatic JSON still somehow produced a cluster.")
}
// can we just make up our own specification?
legalSpec := &ClusterSpec{}
err = json.Unmarshal(validJSON, legalSpec)
if err != nil {
t.Fatal("Unexpected marshaling problem")
}
service, _, err = CreateFromSpec(legalSpec, 1, NullLogger)
if err != nil {
t.Fatal("Can't create straight from a spec")
}
service.Terminate()
legalSpec.Nodes = []*NodeDefinition{}
_, _, err = CreateFromSpec(legalSpec, 1, NullLogger)
if err == nil {
t.Fatal("Can construct illegal cluster from illegal spec")
}
}
// to see if this catches all errors, examine the coverage graph
func TestJSONSpecErrors(t *testing.T) {
defer setConnections(nil)
noNodes := []byte(`{}`)
cluster, _, err := createFromJSON(noNodes, 1, NullLogger)
if cluster != nil || err == nil {
t.Fatal("No nodes still loaded just fine.")
}
node1_1CertFile, cleanup := tmpFile("test_node_cert", node1_1Cert)
defer cleanup()
node1_1KeyFile, cleanup := tmpFile("test_node_key", node1_1Key)
defer cleanup()
clusterCert, cleanup := tmpFile("test_cluster_cert", signing1Cert)
defer cleanup()
nodeErrors := []byte(`{
"nodes": {
"notint": {},
"1": {},
"2": {"address": "localhost", "local_address": "127.0.0.2:10000"},
"3": {"address": "localhost", "listen_address": "‽", "local_address": "‽"},
"4": {"address": "288.88.222.8888"}
},
"permitted_protocols": ["TLS_RSA_WITH_RC4_128_SHA", "TLS_SOMETHING_ACTUALLY_SECURE"],
"node_key_path": "` + node1_1KeyFile + `",
"node_cert_path": "` + node1_1CertFile + `",
"cluster_cert_path": "` + clusterCert + `"
}`)
cluster, _, err = createFromJSON(nodeErrors, 1, NullLogger)
if cluster != nil || err == nil {
t.Fatal("Bad data got all the errors")
}
// Clean up some final cert-based tests for errors: Files that don't exist
nodeErrors = []byte(`{
"nodes": {},
"node_key_path": "nopeidontexist",
"node_cert_path": "alsoidontexist",
"cluster_cert_path": "stillnotexisting"
}`)
cluster, _, err = createFromJSON(nodeErrors, 1, NullLogger)
if cluster != nil || err == nil {
t.Fatal("Unexpectedly successful cluster creation #1")
}
// check illegal pems
nodeErrors = []byte(`{
"node_key_pem": "mmommmo",
"node_cert_pem": "mmommmo",
"cluster_cert_pem": "not a legal pem"
}`)
cluster, _, err = createFromJSON(nodeErrors, 1, NullLogger)
if cluster != nil || err == nil {
t.Fatal("Unexpectedly successful cluster creation #1")
}
// cluster pems can fail in additional ways
nodeErrors = []byte(`{
"cluster_cert_pem": "` + jsonbytes(signing1Key) + `"
}`)
cluster, _, err = createFromJSON(nodeErrors, 1, NullLogger)
if cluster != nil || err == nil {
t.Fatal("Unexpectedly successful cluster creation #1")
}
// illegal cert
nodeErrors = []byte(`{
"cluster_cert_pem": "` + jsonbytes(signing1CertCorrupt) + `"
}`)
cluster, _, err = createFromJSON(nodeErrors, 1, NullLogger)
if cluster != nil || err == nil {
t.Fatal("Unexpectedly successful cluster creation #1")
}
nodeErrors = []byte(`{
"nodes": {"0": {}, "1": {}}
}`)
cluster, _, err = createFromJSON(nodeErrors, 1, NullLogger)
if cluster != nil || err == nil {
t.Fatal("Unexpectedly successful cluster creation #1")
}
}
func TestCoverNoClustering(t *testing.T) {
NoClustering(NullLogger)
connections.Terminate()
if connections != nil {
t.Fatal("connections were not reset as expected")
}
}
func TestResolveLog(t *testing.T) {
t.Parallel()
if resolveLog(nil) != StdLogger {
t.Fatal("Don't get StdLogger for nil")
}
if resolveLog(NullLogger) != NullLogger {
t.Fatal("resolveLog mangles logs")
}
}
type FakeReader struct {
err error
}
func (fr FakeReader) Read([]byte) (int, error) {
return 0, fr.err
}
func tmpFile(prefix string, contents []byte) (string, func()) {
tmpFile, err := ioutil.TempFile("", prefix)
if tmpFile == nil || err != nil {
panic("Could not create tmpFile properly. Please check permissions & stuff")
}
defer func() { _ = tmpFile.Close() }()
l, err := tmpFile.Write(contents)
if err != nil {
panic(err)
}
if l != len(contents) {
panic("Couldn't write whole file?")
}
return tmpFile.Name(), func() {
n := tmpFile.Name()
err := os.Remove(n)
if err != nil {
panic("Couldn't remove temporary file? " + err.Error())
}
}
}