From 9fe0c3ec6848629a72e132cbf863d6d88bfe9720 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Magiera?= <magik6k@gmail.com>
Date: Tue, 1 Oct 2019 00:38:07 +0200
Subject: [PATCH] wip

---
 chain/events/tscache_test.go | 48 ++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 chain/events/tscache_test.go

diff --git a/chain/events/tscache_test.go b/chain/events/tscache_test.go
new file mode 100644
index 000000000..dffe97a42
--- /dev/null
+++ b/chain/events/tscache_test.go
@@ -0,0 +1,48 @@
+package events
+
+import (
+	"context"
+	"fmt"
+	"github.com/filecoin-project/go-lotus/chain/types"
+	"testing"
+)
+
+func TestTsCache(t *testing.T) {
+	tsc := newTSCache(50, func(context.Context, uint64, *types.TipSet) (*types.TipSet, error) {
+		t.Fatal("storage call")
+		return &types.TipSet{}, nil
+	})
+
+	h := uint64(75)
+
+	add := func() {
+		ts, err := types.NewTipSet([]*types.BlockHeader{{
+			Height:          h,
+			StateRoot:       dummyCid,
+			Messages:        dummyCid,
+			MessageReceipts: dummyCid,
+		}})
+		if err != nil {
+			t.Fatal(err)
+		}
+		if err := tsc.add(ts); err != nil {
+			t.Fatal(err)
+		}
+		h++
+	}
+
+	for i := 0; i < 9000; i++ {
+		fmt.Printf("i=%d; tl=%d; tcl=%d\n", i, tsc.len, len(tsc.cache))
+
+		if i%90 > 60 {
+			if err := tsc.revert(tsc.best()); err != nil {
+				t.Fatal(err, "; i:", i)
+				return
+			}
+			h--
+		} else {
+			add()
+		}
+	}
+
+}