eth/downloader: update tests for reliability (#15337)

Updated use of Parallel and added some subtests to help isolate
them. Increased timeout in RequestHeadersByNumber so it
doesn't time out and causes other tests to break.
release/1.8
Rob 7 years ago committed by Felix Lange
parent 20fe928914
commit d927c67f9d
  1. 61
      eth/downloader/downloader_test.go

@ -704,6 +704,7 @@ func TestThrottling64Full(t *testing.T) { testThrottling(t, 64, FullSync) }
func TestThrottling64Fast(t *testing.T) { testThrottling(t, 64, FastSync) }
func testThrottling(t *testing.T, protocol int, mode SyncMode) {
t.Parallel()
tester := newTester()
defer tester.terminate()
@ -1166,6 +1167,8 @@ func TestShiftedHeaderAttack64Fast(t *testing.T) { testShiftedHeaderAttack(t, 6
func TestShiftedHeaderAttack64Light(t *testing.T) { testShiftedHeaderAttack(t, 64, LightSync) }
func testShiftedHeaderAttack(t *testing.T, protocol int, mode SyncMode) {
t.Parallel()
tester := newTester()
defer tester.terminate()
@ -1198,6 +1201,8 @@ func TestInvalidHeaderRollback64Fast(t *testing.T) { testInvalidHeaderRollback(
func TestInvalidHeaderRollback64Light(t *testing.T) { testInvalidHeaderRollback(t, 64, LightSync) }
func testInvalidHeaderRollback(t *testing.T, protocol int, mode SyncMode) {
t.Parallel()
tester := newTester()
defer tester.terminate()
@ -1310,6 +1315,8 @@ func TestBlockHeaderAttackerDropping63(t *testing.T) { testBlockHeaderAttackerDr
func TestBlockHeaderAttackerDropping64(t *testing.T) { testBlockHeaderAttackerDropping(t, 64) }
func testBlockHeaderAttackerDropping(t *testing.T, protocol int) {
t.Parallel()
// Define the disconnection requirement for individual hash fetch errors
tests := []struct {
result error
@ -1665,12 +1672,26 @@ func testFakedSyncProgress(t *testing.T, protocol int, mode SyncMode) {
// This test reproduces an issue where unexpected deliveries would
// block indefinitely if they arrived at the right time.
func TestDeliverHeadersHang62(t *testing.T) { testDeliverHeadersHang(t, 62, FullSync) }
func TestDeliverHeadersHang63Full(t *testing.T) { testDeliverHeadersHang(t, 63, FullSync) }
func TestDeliverHeadersHang63Fast(t *testing.T) { testDeliverHeadersHang(t, 63, FastSync) }
func TestDeliverHeadersHang64Full(t *testing.T) { testDeliverHeadersHang(t, 64, FullSync) }
func TestDeliverHeadersHang64Fast(t *testing.T) { testDeliverHeadersHang(t, 64, FastSync) }
func TestDeliverHeadersHang64Light(t *testing.T) { testDeliverHeadersHang(t, 64, LightSync) }
// We use data driven subtests to manage this so that it will be parallel on its own
// and not with the other tests, avoiding intermittent failures.
func TestDeliverHeadersHang(t *testing.T) {
testCases := []struct {
protocol int
syncMode SyncMode
}{
{62, FullSync},
{63, FullSync},
{63, FastSync},
{64, FullSync},
{64, FastSync},
{64, LightSync},
}
for _, tc := range testCases {
t.Run(fmt.Sprintf("protocol %d mode %v", tc.protocol, tc.syncMode), func(t *testing.T) {
testDeliverHeadersHang(t, tc.protocol, tc.syncMode)
})
}
}
type floodingTestPeer struct {
peer Peer
@ -1703,7 +1724,7 @@ func (ftp *floodingTestPeer) RequestHeadersByNumber(from uint64, count, skip int
// Deliver the actual requested headers.
go ftp.peer.RequestHeadersByNumber(from, count, skip, reverse)
// None of the extra deliveries should block.
timeout := time.After(15 * time.Second)
timeout := time.After(60 * time.Second)
for i := 0; i < cap(deliveriesDone); i++ {
select {
case <-deliveriesDone:
@ -1732,7 +1753,6 @@ func testDeliverHeadersHang(t *testing.T, protocol int, mode SyncMode) {
tester.downloader.peers.peers["peer"].peer,
tester,
}
if err := tester.sync("peer", nil, mode); err != nil {
t.Errorf("sync failed: %v", err)
}
@ -1742,12 +1762,28 @@ func testDeliverHeadersHang(t *testing.T, protocol int, mode SyncMode) {
// Tests that if fast sync aborts in the critical section, it can restart a few
// times before giving up.
func TestFastCriticalRestartsFail63(t *testing.T) { testFastCriticalRestarts(t, 63, false) }
func TestFastCriticalRestartsFail64(t *testing.T) { testFastCriticalRestarts(t, 64, false) }
func TestFastCriticalRestartsCont63(t *testing.T) { testFastCriticalRestarts(t, 63, true) }
func TestFastCriticalRestartsCont64(t *testing.T) { testFastCriticalRestarts(t, 64, true) }
// We use data driven subtests to manage this so that it will be parallel on its own
// and not with the other tests, avoiding intermittent failures.
func TestFastCriticalRestarts(t *testing.T) {
testCases := []struct {
protocol int
progress bool
}{
{63, false},
{64, false},
{63, true},
{64, true},
}
for _, tc := range testCases {
t.Run(fmt.Sprintf("protocol %d progress %v", tc.protocol, tc.progress), func(t *testing.T) {
testFastCriticalRestarts(t, tc.protocol, tc.progress)
})
}
}
func testFastCriticalRestarts(t *testing.T, protocol int, progress bool) {
t.Parallel()
tester := newTester()
defer tester.terminate()
@ -1776,6 +1812,7 @@ func testFastCriticalRestarts(t *testing.T, protocol int, progress bool) {
// If it's the first failure, pivot should be locked => reenable all others to detect pivot changes
if i == 0 {
time.Sleep(150 * time.Millisecond) // Make sure no in-flight requests remain
if tester.downloader.fsPivotLock == nil {
time.Sleep(400 * time.Millisecond) // Make sure the first huge timeout expires too
t.Fatalf("pivot block not locked in after critical section failure")

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