From 018a9a20be26b704abb27b19a22a4377624a9d5c Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Sun, 24 Jun 2018 23:55:27 -0700
Subject: [PATCH] add test for volume registeration at master

---
 weed/topology/topology_test.go | 96 ++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)

diff --git a/weed/topology/topology_test.go b/weed/topology/topology_test.go
index 9a0dbc6b8..06f506c37 100644
--- a/weed/topology/topology_test.go
+++ b/weed/topology/topology_test.go
@@ -2,6 +2,9 @@ package topology
 
 import (
 	"testing"
+	"github.com/chrislusf/seaweedfs/weed/sequence"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"github.com/chrislusf/seaweedfs/weed/storage"
 )
 
 func TestRemoveDataCenter(t *testing.T) {
@@ -15,3 +18,96 @@ func TestRemoveDataCenter(t *testing.T) {
 		t.Fail()
 	}
 }
+
+func TestHandlingVolumeServerHeartbeat(t *testing.T) {
+	topo := NewTopology("weedfs", sequence.NewMemorySequencer(), 32*1024, 5)
+
+	dc := topo.GetOrCreateDataCenter("dc1")
+	rack := dc.GetOrCreateRack("rack1")
+	dn := rack.GetOrCreateDataNode("127.0.0.1", 34534, "127.0.0.1", 25)
+
+	{
+		volumeCount := 700
+		var volumeMessages []*master_pb.VolumeInformationMessage
+		for k := 1; k <= volumeCount; k++ {
+			volumeMessage := &master_pb.VolumeInformationMessage{
+				Id:               uint32(k),
+				Size:             uint64(25432),
+				Collection:       "",
+				FileCount:        uint64(2343),
+				DeleteCount:      uint64(345),
+				DeletedByteCount: 34524,
+				ReadOnly:         false,
+				ReplicaPlacement: uint32(0),
+				Version:          uint32(1),
+				Ttl:              0,
+			}
+			volumeMessages = append(volumeMessages, volumeMessage)
+		}
+		var volumeInfos []storage.VolumeInfo
+		for _, v := range volumeMessages {
+			if vi, err := storage.NewVolumeInfo(v); err == nil {
+				volumeInfos = append(volumeInfos, vi)
+			}
+		}
+
+		deletedVolumes := dn.UpdateVolumes(volumeInfos)
+		for _, v := range volumeInfos {
+			topo.RegisterVolumeLayout(v, dn)
+		}
+		for _, v := range deletedVolumes {
+			topo.UnRegisterVolumeLayout(v, dn)
+		}
+
+		assert(t, "activeVolumeCount1", topo.activeVolumeCount, volumeCount)
+		assert(t, "volumeCount", topo.volumeCount, volumeCount)
+	}
+
+	{
+		volumeCount := 700 - 1
+		var volumeMessages []*master_pb.VolumeInformationMessage
+		for k := 1; k <= volumeCount; k++ {
+			volumeMessage := &master_pb.VolumeInformationMessage{
+				Id:               uint32(k),
+				Size:             uint64(254320),
+				Collection:       "",
+				FileCount:        uint64(2343),
+				DeleteCount:      uint64(345),
+				DeletedByteCount: 345240,
+				ReadOnly:         false,
+				ReplicaPlacement: uint32(0),
+				Version:          uint32(1),
+				Ttl:              0,
+			}
+			volumeMessages = append(volumeMessages, volumeMessage)
+		}
+		var volumeInfos []storage.VolumeInfo
+		for _, v := range volumeMessages {
+			if vi, err := storage.NewVolumeInfo(v); err == nil {
+				volumeInfos = append(volumeInfos, vi)
+			}
+		}
+
+		deletedVolumes := dn.UpdateVolumes(volumeInfos)
+		for _, v := range volumeInfos {
+			topo.RegisterVolumeLayout(v, dn)
+		}
+		for _, v := range deletedVolumes {
+			topo.UnRegisterVolumeLayout(v, dn)
+		}
+
+		assert(t, "activeVolumeCount1", topo.activeVolumeCount, volumeCount)
+		assert(t, "volumeCount", topo.volumeCount, volumeCount)
+	}
+
+	topo.UnRegisterDataNode(dn)
+
+	assert(t, "activeVolumeCount2", topo.activeVolumeCount, 0)
+
+}
+
+func assert(t *testing.T, message string, actual, expected int) {
+	if actual != expected {
+		t.Fatalf("unexpected %s: %d, expected: %d", message, actual, expected)
+	}
+}