356 lines
7.9 KiB
Go
356 lines
7.9 KiB
Go
// Copyright (C) 2018 Storj Labs, Inc.
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// See LICENSE for copying information.
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package overlay
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import (
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"context"
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"net"
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"testing"
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"github.com/golang/protobuf/proto"
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"github.com/stretchr/testify/assert"
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"google.golang.org/grpc"
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"storj.io/storj/internal/testcontext"
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"storj.io/storj/pkg/dht"
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"storj.io/storj/pkg/node"
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"storj.io/storj/pkg/pb"
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"storj.io/storj/pkg/provider"
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"storj.io/storj/storage"
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"storj.io/storj/storage/teststore"
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)
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type mockNodeID struct {
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}
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func (m mockNodeID) String() string {
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return "foobar"
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}
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func (m mockNodeID) Bytes() []byte {
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return []byte("foobar")
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}
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func TestNewOverlayClient(t *testing.T) {
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ctx := testcontext.New(t)
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defer ctx.Cleanup()
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cases := []struct {
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address string
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}{
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{
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address: "127.0.0.1:8080",
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},
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}
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for _, v := range cases {
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ca, err := provider.NewTestCA(ctx)
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assert.NoError(t, err)
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identity, err := ca.NewIdentity()
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assert.NoError(t, err)
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oc, err := NewOverlayClient(identity, v.address)
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assert.NoError(t, err)
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assert.NotNil(t, oc)
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overlay, ok := oc.(*Overlay)
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assert.True(t, ok)
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assert.NotEmpty(t, overlay.client)
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}
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}
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func TestChoose(t *testing.T) {
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ctx := testcontext.New(t)
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defer ctx.Cleanup()
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cases := []struct {
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limit int
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space int64
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allNodes []*pb.Node
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excluded []dht.NodeID
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}{
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{
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limit: 4,
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space: 0,
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allNodes: func() []*pb.Node {
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n1 := &pb.Node{Id: "n1"}
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n2 := &pb.Node{Id: "n2"}
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n3 := &pb.Node{Id: "n3"}
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n4 := &pb.Node{Id: "n4"}
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n5 := &pb.Node{Id: "n5"}
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n6 := &pb.Node{Id: "n6"}
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n7 := &pb.Node{Id: "n7"}
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n8 := &pb.Node{Id: "n8"}
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return []*pb.Node{n1, n2, n3, n4, n5, n6, n7, n8}
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}(),
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excluded: func() []dht.NodeID {
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id1 := node.IDFromString("n1")
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id2 := node.IDFromString("n2")
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id3 := node.IDFromString("n3")
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id4 := node.IDFromString("n4")
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return []dht.NodeID{id1, id2, id3, id4}
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}(),
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},
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}
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for _, v := range cases {
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lis, err := net.Listen("tcp", "127.0.0.1:0")
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assert.NoError(t, err)
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var listItems []storage.ListItem
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for _, n := range v.allNodes {
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data, err := proto.Marshal(n)
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assert.NoError(t, err)
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listItems = append(listItems, storage.ListItem{
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Key: storage.Key(n.Id),
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Value: data,
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})
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}
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ca, err := provider.NewTestCA(ctx)
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assert.NoError(t, err)
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identity, err := ca.NewIdentity()
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assert.NoError(t, err)
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srv := NewMockServer(listItems, func() grpc.ServerOption {
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opt, err := identity.ServerOption()
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assert.NoError(t, err)
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return opt
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}())
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go func() { assert.NoError(t, srv.Serve(lis)) }()
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defer srv.Stop()
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oc, err := NewOverlayClient(identity, lis.Addr().String())
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assert.NoError(t, err)
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assert.NotNil(t, oc)
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overlay, ok := oc.(*Overlay)
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assert.True(t, ok)
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assert.NotEmpty(t, overlay.client)
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newNodes, err := oc.Choose(ctx, Options{Amount: v.limit, Space: v.space, Excluded: v.excluded})
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assert.NoError(t, err)
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for _, new := range newNodes {
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for _, ex := range v.excluded {
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assert.NotEqual(t, ex.String(), new.Id)
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}
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}
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}
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}
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func TestLookup(t *testing.T) {
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ctx := testcontext.New(t)
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defer ctx.Cleanup()
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cases := []struct {
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nodeID dht.NodeID
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expectedCalls int
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}{
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{
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nodeID: mockNodeID{},
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expectedCalls: 1,
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},
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}
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for _, v := range cases {
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lis, err := net.Listen("tcp", "127.0.0.1:0")
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assert.NoError(t, err)
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srv, mock, err := newTestServer(ctx)
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assert.NoError(t, err)
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go func() { assert.NoError(t, srv.Serve(lis)) }()
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defer srv.Stop()
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ca, err := provider.NewTestCA(ctx)
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assert.NoError(t, err)
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identity, err := ca.NewIdentity()
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assert.NoError(t, err)
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oc, err := NewOverlayClient(identity, lis.Addr().String())
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assert.NoError(t, err)
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assert.NotNil(t, oc)
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overlay, ok := oc.(*Overlay)
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assert.True(t, ok)
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assert.NotEmpty(t, overlay.client)
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_, err = oc.Lookup(ctx, v.nodeID)
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assert.NoError(t, err)
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assert.Equal(t, mock.lookupCalled, v.expectedCalls)
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}
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}
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func TestBulkLookup(t *testing.T) {
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ctx := testcontext.New(t)
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defer ctx.Cleanup()
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cases := []struct {
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nodeIDs []dht.NodeID
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expectedCalls int
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}{
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{
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nodeIDs: []dht.NodeID{mockNodeID{}, mockNodeID{}, mockNodeID{}},
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expectedCalls: 1,
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},
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}
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for _, v := range cases {
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lis, err := net.Listen("tcp", "127.0.0.1:0")
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assert.NoError(t, err)
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srv, mock, err := newTestServer(ctx)
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assert.NoError(t, err)
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go func() { assert.NoError(t, srv.Serve(lis)) }()
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defer srv.Stop()
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ca, err := provider.NewTestCA(ctx)
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assert.NoError(t, err)
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identity, err := ca.NewIdentity()
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assert.NoError(t, err)
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oc, err := NewOverlayClient(identity, lis.Addr().String())
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assert.NoError(t, err)
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assert.NotNil(t, oc)
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overlay, ok := oc.(*Overlay)
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assert.True(t, ok)
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assert.NotEmpty(t, overlay.client)
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_, err = oc.BulkLookup(ctx, v.nodeIDs)
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assert.NoError(t, err)
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assert.Equal(t, mock.bulkLookupCalled, v.expectedCalls)
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}
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}
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func TestBulkLookupV2(t *testing.T) {
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ctx := testcontext.New(t)
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defer ctx.Cleanup()
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lis, err := net.Listen("tcp", "127.0.0.1:0")
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assert.NoError(t, err)
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srv, s, err := newServer(ctx)
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assert.NoError(t, err)
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go func() { assert.NoError(t, srv.Serve(lis)) }()
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defer srv.Stop()
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ca, err := provider.NewTestCA(ctx)
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assert.NoError(t, err)
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identity, err := ca.NewIdentity()
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assert.NoError(t, err)
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oc, err := NewOverlayClient(identity, lis.Addr().String())
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assert.NoError(t, err)
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assert.NotNil(t, oc)
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overlay, ok := oc.(*Overlay)
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assert.True(t, ok)
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assert.NotEmpty(t, overlay.client)
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n1 := &pb.Node{Id: "n1"}
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n2 := &pb.Node{Id: "n2"}
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n3 := &pb.Node{Id: "n3"}
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nodes := []*pb.Node{n1, n2, n3}
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for _, n := range nodes {
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assert.NoError(t, s.cache.Put(n.Id, *n))
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}
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nid1 := node.IDFromString("n1")
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nid2 := node.IDFromString("n2")
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nid3 := node.IDFromString("n3")
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nid4 := node.IDFromString("n4")
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nid5 := node.IDFromString("n5")
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{ // empty id
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_, err := oc.BulkLookup(ctx, []dht.NodeID{})
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assert.Error(t, err)
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}
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{ // valid ids
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ns, err := oc.BulkLookup(ctx, []dht.NodeID{nid1, nid2, nid3})
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assert.NoError(t, err)
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assert.Equal(t, nodes, ns)
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}
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{ // missing ids
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ns, err := oc.BulkLookup(ctx, []dht.NodeID{nid4, nid5})
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assert.NoError(t, err)
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assert.Equal(t, []*pb.Node{nil, nil}, ns)
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}
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{ // different order and missing
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ns, err := oc.BulkLookup(ctx, []dht.NodeID{nid3, nid4, nid1, nid2, nid5})
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assert.NoError(t, err)
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assert.Equal(t, []*pb.Node{n3, nil, n1, n2, nil}, ns)
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}
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}
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func newServer(ctx context.Context) (*grpc.Server, *Server, error) {
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ca, err := provider.NewTestCA(ctx)
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if err != nil {
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return nil, nil, err
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}
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identity, err := ca.NewIdentity()
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if err != nil {
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return nil, nil, err
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}
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identOpt, err := identity.ServerOption()
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if err != nil {
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return nil, nil, err
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}
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grpcServer := grpc.NewServer(identOpt)
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s := &Server{cache: NewOverlayCache(teststore.New(), nil)}
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pb.RegisterOverlayServer(grpcServer, s)
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return grpcServer, s, nil
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}
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func newTestServer(ctx context.Context) (*grpc.Server, *mockOverlayServer, error) {
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ca, err := provider.NewTestCA(ctx)
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if err != nil {
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return nil, nil, err
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}
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identity, err := ca.NewIdentity()
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if err != nil {
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return nil, nil, err
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}
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identOpt, err := identity.ServerOption()
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if err != nil {
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return nil, nil, err
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}
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grpcServer := grpc.NewServer(identOpt)
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mo := &mockOverlayServer{lookupCalled: 0, FindStorageNodesCalled: 0}
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pb.RegisterOverlayServer(grpcServer, mo)
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return grpcServer, mo, nil
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}
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type mockOverlayServer struct {
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lookupCalled int
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bulkLookupCalled int
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FindStorageNodesCalled int
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}
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func (o *mockOverlayServer) Lookup(ctx context.Context, req *pb.LookupRequest) (*pb.LookupResponse, error) {
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o.lookupCalled++
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return &pb.LookupResponse{}, nil
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}
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func (o *mockOverlayServer) FindStorageNodes(ctx context.Context, req *pb.FindStorageNodesRequest) (*pb.FindStorageNodesResponse, error) {
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o.FindStorageNodesCalled++
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return &pb.FindStorageNodesResponse{}, nil
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}
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func (o *mockOverlayServer) BulkLookup(ctx context.Context, reqs *pb.LookupRequests) (*pb.LookupResponses, error) {
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o.bulkLookupCalled++
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return &pb.LookupResponses{}, nil
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}
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