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// Copyright (C) 2019-2023 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package catchup
import (
"context"
"fmt"
"net"
"net/http"
"testing"
"github.com/stretchr/testify/require"
"github.com/algorand/go-algorand/components/mocks"
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/ledger"
"github.com/algorand/go-algorand/logging"
"github.com/algorand/go-algorand/test/partitiontest"
)
type dummyLedgerFetcherReporter struct {
}
func (lf *dummyLedgerFetcherReporter) updateLedgerFetcherProgress(*ledger.CatchpointCatchupAccessorProgress) {
}
func TestNoPeersAvailable(t *testing.T) {
partitiontest.PartitionTest(t)
lf := makeLedgerFetcher(&mocks.MockNetwork{}, &mocks.MockCatchpointCatchupAccessor{}, logging.TestingLog(t), &dummyLedgerFetcherReporter{}, config.GetDefaultLocal())
peer := &lf // The peer is an opaque interface.. we can add anything as a Peer.
err := lf.downloadLedger(context.Background(), peer, basics.Round(0))
require.Equal(t, errNonHTTPPeer, err)
}
func TestNonParsableAddress(t *testing.T) {
partitiontest.PartitionTest(t)
lf := makeLedgerFetcher(&mocks.MockNetwork{}, &mocks.MockCatchpointCatchupAccessor{}, logging.TestingLog(t), &dummyLedgerFetcherReporter{}, config.GetDefaultLocal())
peer := testHTTPPeer(":def")
err := lf.getPeerLedger(context.Background(), &peer, basics.Round(0))
require.Error(t, err)
}
func TestLedgerFetcherErrorResponseHandling(t *testing.T) {
partitiontest.PartitionTest(t)
testcases := []struct {
name string
httpServerResponse int
contentTypes []string
err error
}{
{
name: "getPeerLedger 400 Response",
httpServerResponse: http.StatusNotFound,
contentTypes: make([]string, 0),
err: errNoLedgerForRound,
},
{
name: "getPeerLedger 500 Response",
httpServerResponse: http.StatusInternalServerError,
contentTypes: make([]string, 0),
err: fmt.Errorf("getPeerLedger error response status code %d", http.StatusInternalServerError),
},
{
name: "getPeerLedger No Content Type",
httpServerResponse: http.StatusOK,
contentTypes: make([]string, 0),
err: fmt.Errorf("getPeerLedger : http ledger fetcher invalid content type count %d", 0),
},
{
name: "getPeerLedger Too Many Content Types",
httpServerResponse: http.StatusOK,
contentTypes: []string{"applications/one", "applications/two"},
err: fmt.Errorf("getPeerLedger : http ledger fetcher invalid content type count %d", 2),
},
{
name: "getPeerLedger Invalid Content Type",
httpServerResponse: http.StatusOK,
contentTypes: []string{"applications/one"},
err: fmt.Errorf("getPeerLedger : http ledger fetcher response has an invalid content type : %s", "applications/one"),
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
// create a dummy server.
mux := http.NewServeMux()
s := &http.Server{
Handler: mux,
}
listener, err := net.Listen("tcp", "localhost:")
require.NoError(t, err)
go s.Serve(listener)
defer s.Close()
defer listener.Close()
mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
for _, contentType := range tc.contentTypes {
w.Header().Add("Content-Type", contentType)
}
w.WriteHeader(tc.httpServerResponse)
})
lf := makeLedgerFetcher(&mocks.MockNetwork{}, &mocks.MockCatchpointCatchupAccessor{}, logging.TestingLog(t), &dummyLedgerFetcherReporter{}, config.GetDefaultLocal())
peer := testHTTPPeer(listener.Addr().String())
err = lf.getPeerLedger(context.Background(), &peer, basics.Round(0))
require.Equal(t, tc.err, err)
})
}
}
func TestLedgerFetcherHeadLedger(t *testing.T) {
partitiontest.PartitionTest(t)
// create a dummy server.
mux := http.NewServeMux()
s := &http.Server{
Handler: mux,
}
listener, err := net.Listen("tcp", "localhost:")
var httpServerResponse = 0
var contentTypes = make([]string, 0)
require.NoError(t, err)
go s.Serve(listener)
defer s.Close()
defer listener.Close()
mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
for _, contentType := range contentTypes {
w.Header().Add("Content-Type", contentType)
}
w.WriteHeader(httpServerResponse)
})
successPeer := testHTTPPeer(listener.Addr().String())
lf := makeLedgerFetcher(&mocks.MockNetwork{}, &mocks.MockCatchpointCatchupAccessor{}, logging.TestingLog(t), &dummyLedgerFetcherReporter{}, config.GetDefaultLocal())
// headLedger non-http peer
err = lf.headLedger(context.Background(), nil, basics.Round(0))
require.Equal(t, errNonHTTPPeer, err)
// headLedger parseURL failure
parseFailurePeer := testHTTPPeer("foobar")
err = lf.headLedger(context.Background(), &parseFailurePeer, basics.Round(0))
require.Equal(t, fmt.Errorf("could not parse a host from url"), err)
// headLedger 404 response
httpServerResponse = http.StatusNotFound
err = lf.headLedger(context.Background(), &successPeer, basics.Round(0))
require.Equal(t, errNoLedgerForRound, err)
// headLedger 200 response
httpServerResponse = http.StatusOK
err = lf.headLedger(context.Background(), &successPeer, basics.Round(0))
require.NoError(t, err)
// headLedger 500 response
httpServerResponse = http.StatusInternalServerError
err = lf.headLedger(context.Background(), &successPeer, basics.Round(0))
require.Equal(t, fmt.Errorf("headLedger error response status code %d", http.StatusInternalServerError), err)
}
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