func TestBackend(t *testing.T) {
etcd, err := clustertest.StartEtcd()
if err != nil {
t.Fatal(err)
}
if etcd == nil {
t.Fatal("etcd not available in PATH, can't test backend")
}
defer etcd.Shutdown()
dsn := *dsn
if env := os.Getenv("DSN"); env != "" {
// for running in CI container
dsn = env
}
db, err := sql.Open("postgres", dsn)
if err != nil {
t.Fatalf("sql.Open: %s", err)
}
// Drop all tables.
for _, item := range schema {
if _, err := db.Exec("DROP TABLE IF EXISTS " + item.Name + " CASCADE"); err != nil {
t.Fatalf("failed to drop table %s: %s", item.Name, err)
}
}
if _, err := db.Exec("DROP TABLE IF EXISTS gorp_migrations"); err != nil {
t.Fatal(err)
}
// Recreate all tables.
src := migrate.FileMigrationSource{"migrations"}
if _, err := migrate.Exec(db, "postgres", src, migrate.Up); err != nil {
t.Fatal(err)
}
// Start up backend.
c := etcd.Join("/test", "testcase", "era")
desc := &cluster.PeerDesc{
ID: "testcase",
Era: "era",
Version: "testver",
}
b, err := NewBackend(scope.New(), dsn, c, desc)
if err != nil {
t.Fatal(err)
}
defer b.Close()
// Run test suite.
backend.IntegrationTest(t, func() proto.Backend { return nonClosingBackend{b} })
}
func TestEtcdCluster(t *testing.T) {
s, err := clustertest.StartEtcd()
if err != nil {
t.Fatal(err)
}
if s == nil {
t.Skipf("etcd not in PATH, skipping tests")
}
defer s.Shutdown()
Convey("Observe peer departure", t, func() {
a := s.Join("/departure", "a", "0")
// no defer a.Part() because we'll do that explicitly
b := s.Join("/departure", "b", "0")
defer b.Part()
So(<-a.Watch(), ShouldResemble, &cluster.PeerJoinedEvent{cluster.PeerDesc{ID: "b", Era: "0"}})
a.Part()
So(<-b.Watch(), ShouldResemble, &cluster.PeerLostEvent{cluster.PeerDesc{ID: "a"}})
})
Convey("Observe initial peers upon joining", t, func() {
a := s.Join("/initial", "a", "0")
defer a.Part()
So(a.Peers(), ShouldResemble,
[]cluster.PeerDesc{
{ID: "a", Era: "0"},
})
b := s.Join("/initial", "b", "0")
defer b.Part()
So(b.Peers(), ShouldResemble,
[]cluster.PeerDesc{
{ID: "a", Era: "0"},
{ID: "b", Era: "0"},
})
})
Convey("Updates are seen", t, func() {
a := s.Join("/updates", "a", "0")
defer a.Part()
b := s.Join("/updates", "b", "0")
defer b.Part()
b.Update(&cluster.PeerDesc{ID: "b", Era: "1"})
b.Update(&cluster.PeerDesc{ID: "b", Era: "2"})
So(<-a.Watch(), ShouldResemble, &cluster.PeerJoinedEvent{cluster.PeerDesc{ID: "b", Era: "0"}})
So(<-a.Watch(), ShouldResemble, &cluster.PeerAliveEvent{cluster.PeerDesc{ID: "b", Era: "1"}})
So(<-a.Watch(), ShouldResemble, &cluster.PeerAliveEvent{cluster.PeerDesc{ID: "b", Era: "2"}})
})
Convey("Secrets are created if necessary", t, func() {
kms := security.LocalKMS()
a := s.Join("/secrets1", "a", "0")
defer a.Part()
secret, err := a.GetSecret(kms, "test1", 16)
So(err, ShouldBeNil)
So(len(secret), ShouldEqual, 16)
secretCopy, err := a.GetSecret(kms, "test1", 16)
So(err, ShouldBeNil)
So(string(secretCopy), ShouldEqual, string(secret))
})
Convey("Race to create secret is conceded gracefully", t, func() {
kms := &syncKMS{
KMS: security.LocalKMS(),
c: make(chan struct{}),
}
a := s.Join("/secrets1", "a", "0")
defer a.Part()
sc := make(chan []byte)
errc := make(chan error)
go func() {
s, err := a.GetSecret(kms, "test2", 16)
errc <- err
sc <- s
}()
// Synchronize with secret generation.
<-kms.c
// Set the secret before releasing the goroutine.
secret, err := a.GetSecret(kms.KMS, "test2", 16)
So(err, ShouldBeNil)
// Release the goroutine and verify it gets the secret that was set.
kms.c <- struct{}{}
So(<-errc, ShouldBeNil)
So(string(<-sc), ShouldEqual, string(secret))
})
}