lnd.xprv/channeldb/db_test.go

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package channeldb
import (
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/btcsuite/btcutil"
"github.com/lightningnetwork/lnd/lnwire"
)
func TestOpenWithCreate(t *testing.T) {
t.Parallel()
// First, create a temporary directory to be used for the duration of
// this test.
tempDirName, err := ioutil.TempDir("", "channeldb")
if err != nil {
t.Fatalf("unable to create temp dir: %v", err)
}
defer os.RemoveAll(tempDirName)
// Next, open thereby creating channeldb for the first time.
dbPath := filepath.Join(tempDirName, "cdb")
cdb, err := Open(dbPath)
if err != nil {
t.Fatalf("unable to create channeldb: %v", err)
}
if err := cdb.Close(); err != nil {
t.Fatalf("unable to close channeldb: %v", err)
}
// The path should have been successfully created.
if !fileExists(dbPath) {
t.Fatalf("channeldb failed to create data directory")
}
}
2018-09-26 18:27:30 +03:00
// TestWipe tests that the database wipe operation completes successfully
// and that the buckets are deleted. It also checks that attempts to fetch
// information while the buckets are not set return the correct errors.
func TestWipe(t *testing.T) {
t.Parallel()
// First, create a temporary directory to be used for the duration of
// this test.
tempDirName, err := ioutil.TempDir("", "channeldb")
if err != nil {
t.Fatalf("unable to create temp dir: %v", err)
}
defer os.RemoveAll(tempDirName)
// Next, open thereby creating channeldb for the first time.
dbPath := filepath.Join(tempDirName, "cdb")
cdb, err := Open(dbPath)
if err != nil {
t.Fatalf("unable to create channeldb: %v", err)
}
defer cdb.Close()
if err := cdb.Wipe(); err != nil {
t.Fatalf("unable to wipe channeldb: %v", err)
}
// Check correct errors are returned
_, err = cdb.FetchAllOpenChannels()
if err != ErrNoActiveChannels {
t.Fatalf("fetching open channels: expected '%v' instead got '%v'",
ErrNoActiveChannels, err)
}
_, err = cdb.FetchClosedChannels(false)
if err != ErrNoClosedChannels {
t.Fatalf("fetching closed channels: expected '%v' instead got '%v'",
ErrNoClosedChannels, err)
}
}
// TestFetchClosedChannelForID tests that we are able to properly retrieve a
// ChannelCloseSummary from the DB given a ChannelID.
func TestFetchClosedChannelForID(t *testing.T) {
t.Parallel()
const numChans = 101
cdb, cleanUp, err := makeTestDB()
if err != nil {
t.Fatalf("unable to make test database: %v", err)
}
defer cleanUp()
// Create the test channel state, that we will mutate the index of the
// funding point.
state, err := createTestChannelState(cdb)
if err != nil {
t.Fatalf("unable to create channel state: %v", err)
}
// Now run through the number of channels, and modify the outpoint index
// to create new channel IDs.
for i := uint32(0); i < numChans; i++ {
// Save the open channel to disk.
state.FundingOutpoint.Index = i
if err := state.FullSync(); err != nil {
t.Fatalf("unable to save and serialize channel "+
"state: %v", err)
}
// Close the channel. To make sure we retrieve the correct
// summary later, we make them differ in the SettledBalance.
closeSummary := &ChannelCloseSummary{
ChanPoint: state.FundingOutpoint,
RemotePub: state.IdentityPub,
SettledBalance: btcutil.Amount(500 + i),
}
if err := state.CloseChannel(closeSummary); err != nil {
t.Fatalf("unable to close channel: %v", err)
}
}
// Now run though them all again and make sure we are able to retrieve
// summaries from the DB.
for i := uint32(0); i < numChans; i++ {
state.FundingOutpoint.Index = i
// We calculate the ChannelID and use it to fetch the summary.
cid := lnwire.NewChanIDFromOutPoint(&state.FundingOutpoint)
fetchedSummary, err := cdb.FetchClosedChannelForID(cid)
if err != nil {
t.Fatalf("unable to fetch close summary: %v", err)
}
// Make sure we retrieved the correct one by checking the
// SettledBalance.
if fetchedSummary.SettledBalance != btcutil.Amount(500+i) {
t.Fatalf("summaries don't match: expected %v got %v",
btcutil.Amount(500+i),
fetchedSummary.SettledBalance)
}
}
// As a final test we make sure that we get ErrClosedChannelNotFound
// for a ChannelID we didn't add to the DB.
state.FundingOutpoint.Index++
cid := lnwire.NewChanIDFromOutPoint(&state.FundingOutpoint)
_, err = cdb.FetchClosedChannelForID(cid)
if err != ErrClosedChannelNotFound {
t.Fatalf("expected ErrClosedChannelNotFound, instead got: %v", err)
}
}