From 5043f31adf16c0433a26d917323e4883ab20608f Mon Sep 17 00:00:00 2001
From: vyzo <vyzo@hackzen.org>
Date: Thu, 26 Nov 2020 18:58:03 +0200
Subject: [PATCH] liveset unit test

---
 chain/store/splitstore/liveset.go      |   2 +-
 chain/store/splitstore/liveset_test.go | 145 +++++++++++++++++++++++++
 2 files changed, 146 insertions(+), 1 deletion(-)
 create mode 100644 chain/store/splitstore/liveset_test.go

diff --git a/chain/store/splitstore/liveset.go b/chain/store/splitstore/liveset.go
index f55053fe5..f8d57ea14 100644
--- a/chain/store/splitstore/liveset.go
+++ b/chain/store/splitstore/liveset.go
@@ -17,7 +17,7 @@ type liveSet struct {
 	db  lmdb.DBI
 }
 
-var markBytes = []byte{1}
+var markBytes = []byte{}
 
 func NewLiveSet(env *lmdb.Env, name string) (LiveSet, error) {
 	var db lmdb.DBI
diff --git a/chain/store/splitstore/liveset_test.go b/chain/store/splitstore/liveset_test.go
new file mode 100644
index 000000000..7c3a8ca4f
--- /dev/null
+++ b/chain/store/splitstore/liveset_test.go
@@ -0,0 +1,145 @@
+package splitstore
+
+import (
+	"os"
+	"testing"
+
+	"github.com/bmatsuo/lmdb-go/lmdb"
+
+	cid "github.com/ipfs/go-cid"
+	"github.com/multiformats/go-multihash"
+)
+
+func TestLiveSet(t *testing.T) {
+	env, err := lmdb.NewEnv()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer env.Close() //nolint:errcheck
+
+	if err = env.SetMapSize(1 << 30); err != nil {
+		t.Fatal(err)
+	}
+	if err = env.SetMaxDBs(2); err != nil {
+		t.Fatal(err)
+	}
+	if err = env.SetMaxReaders(1); err != nil {
+		t.Fatal(err)
+	}
+
+	err = os.MkdirAll("/tmp/liveset-test", 0777)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = env.Open("/tmp/liveset-test", lmdb.NoSync|lmdb.WriteMap|lmdb.MapAsync|lmdb.NoReadahead, 0777)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	hotSet, err := NewLiveSet(env, "hot")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	coldSet, err := NewLiveSet(env, "cold")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	makeCid := func(key string) cid.Cid {
+		h, err := multihash.Sum([]byte(key), multihash.SHA2_256, -1)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return cid.NewCidV1(cid.Raw, h)
+	}
+
+	mustHave := func(s LiveSet, cid cid.Cid) {
+		has, err := s.Has(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if !has {
+			t.Fatal("mark not found")
+		}
+	}
+
+	mustNotHave := func(s LiveSet, cid cid.Cid) {
+		has, err := s.Has(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if has {
+			t.Fatal("unexpected mark")
+		}
+	}
+
+	k1 := makeCid("a")
+	k2 := makeCid("b")
+	k3 := makeCid("c")
+	k4 := makeCid("d")
+
+	hotSet.Mark(k1)
+	hotSet.Mark(k2)
+	coldSet.Mark(k3)
+
+	mustHave(hotSet, k1)
+	mustHave(hotSet, k2)
+	mustNotHave(hotSet, k3)
+	mustNotHave(hotSet, k4)
+
+	mustNotHave(coldSet, k1)
+	mustNotHave(coldSet, k2)
+	mustHave(coldSet, k3)
+	mustNotHave(coldSet, k4)
+
+	// close them and reopen to redo the dance
+
+	err = hotSet.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = coldSet.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	hotSet, err = NewLiveSet(env, "hot")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	coldSet, err = NewLiveSet(env, "cold")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	hotSet.Mark(k3)
+	hotSet.Mark(k4)
+	coldSet.Mark(k1)
+
+	mustNotHave(hotSet, k1)
+	mustNotHave(hotSet, k2)
+	mustHave(hotSet, k3)
+	mustHave(hotSet, k4)
+
+	mustHave(coldSet, k1)
+	mustNotHave(coldSet, k2)
+	mustNotHave(coldSet, k3)
+	mustNotHave(coldSet, k4)
+
+	err = hotSet.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = coldSet.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+}