fix(f3): test API during inactive-F3 modes and make consistent and safe

Closes: #12772

api/api_errors.go

@@ -98,7 +98,7 @@ func (ErrActorNotFound) Error() string { return "actor not found" }
 
 type errF3Disabled struct{}
 
-func (errF3Disabled) Error() string { return "f3 is disabled" }
+func (errF3Disabled) Error() string { return "F3 is disabled" }
 
 type errF3ParticipationTicketInvalid struct{}
 
@@ -124,7 +124,7 @@ func (errF3ParticipationTicketStartBeforeExisting) Error() string {
 
 type errF3NotReady struct{}
 
-func (errF3NotReady) Error() string { return "f3 isn't yet ready to participate" }
+func (errF3NotReady) Error() string { return "F3 isn't yet ready to participate" }
 
 // ErrExecutionReverted is used to return execution reverted with a reason for a revert in the `data` field.
 type ErrExecutionReverted struct {

chain/lf3/f3.go

@@ -184,20 +184,23 @@ func (fff *F3) GetLatestCert(ctx context.Context) (*certs.FinalityCertificate, e
 	return fff.inner.GetLatestCert(ctx)
 }
 
-func (fff *F3) GetManifest(ctx context.Context) *manifest.Manifest {
+func (fff *F3) GetManifest(ctx context.Context) (*manifest.Manifest, error) {
 	m := fff.inner.Manifest()
+	if m == nil {
+		return nil, xerrors.Errorf("no known network manifest")
+	}
 	if m.InitialPowerTable.Defined() {
-		return m
+		return m, nil
 	}
 	cert0, err := fff.inner.GetCert(ctx, 0)
 	if err != nil {
-		return m
+		return m, xerrors.Errorf("getting certificate for instance 0: %w", err)
 	}
 
 	var mCopy = *m
 	m = &mCopy
 	m.InitialPowerTable = cert0.ECChain.Base().PowerTable
-	return m
+	return m, nil
 }
 
 func (fff *F3) GetPowerTable(ctx context.Context, tsk types.TipSetKey) (gpbft.PowerEntries, error) {

itests/f3_test.go

@@ -2,6 +2,7 @@ package itests
 
 import (
 	"context"
+	"reflect"
 	"sync"
 	"testing"
 	"time"
@@ -14,10 +15,12 @@ import (
 	"golang.org/x/sync/errgroup"
 
 	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-f3/certs"
 	"github.com/filecoin-project/go-f3/gpbft"
 	"github.com/filecoin-project/go-f3/manifest"
 	"github.com/filecoin-project/go-state-types/abi"
 
+	"github.com/filecoin-project/lotus/api"
 	lotus_api "github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/lf3"
 	"github.com/filecoin-project/lotus/chain/types"
@@ -57,6 +60,128 @@ func TestF3_Enabled(t *testing.T) {
 	e.requireAllMinersParticipate()
 }
 
+// TestF3_Disabled tests the return values and errors of the F3 API when F3 is
+// disabled or is not yet running.
+func TestF3_InactiveModes(t *testing.T) {
+	kit.QuietMiningLogs()
+
+	testCases := []struct {
+		mode                 string
+		expectedErrors       map[string]any
+		expectedValues       map[string]any
+		customValidateReturn map[string]func(t *testing.T, ret []reflect.Value)
+	}{
+		{
+			mode: "disabled",
+			expectedErrors: map[string]any{
+				"F3GetOrRenewParticipationTicket": lotus_api.ErrF3Disabled,
+				"F3Participate":                   lotus_api.ErrF3Disabled,
+				"F3GetCertificate":                lotus_api.ErrF3Disabled,
+				"F3GetLatestCertificate":          lotus_api.ErrF3Disabled,
+				"F3GetManifest":                   lotus_api.ErrF3Disabled,
+				"F3GetECPowerTable":               lotus_api.ErrF3Disabled,
+				"F3GetF3PowerTable":               lotus_api.ErrF3Disabled,
+				"F3IsRunning":                     lotus_api.ErrF3Disabled,
+			},
+			expectedValues: map[string]any{
+				"F3GetOrRenewParticipationTicket": (api.F3ParticipationTicket)(nil),
+				"F3Participate":                   api.F3ParticipationLease{},
+				"F3GetCertificate":                (*certs.FinalityCertificate)(nil),
+				"F3GetLatestCertificate":          (*certs.FinalityCertificate)(nil),
+				"F3GetManifest":                   (*manifest.Manifest)(nil),
+				"F3GetECPowerTable":               (gpbft.PowerEntries)(nil),
+				"F3GetF3PowerTable":               (gpbft.PowerEntries)(nil),
+				"F3IsRunning":                     false,
+			},
+		},
+		{
+			mode: "not running",
+			expectedErrors: map[string]any{
+				"F3GetOrRenewParticipationTicket": api.ErrF3NotReady,
+				"F3Participate":                   api.ErrF3NotReady,
+				"F3GetCertificate":                "F3 is not running",
+				"F3GetLatestCertificate":          "F3 is not running",
+				"F3GetManifest":                   "no known network manifest",
+				"F3GetF3PowerTable":               "no known network manifest",
+			},
+			expectedValues: map[string]any{
+				"F3GetOrRenewParticipationTicket": (api.F3ParticipationTicket)(nil),
+				"F3Participate":                   api.F3ParticipationLease{},
+				"F3GetCertificate":                (*certs.FinalityCertificate)(nil),
+				"F3GetLatestCertificate":          (*certs.FinalityCertificate)(nil),
+				"F3GetECPowerTable":               (gpbft.PowerEntries)(nil),
+				"F3IsRunning":                     false,
+			},
+			customValidateReturn: map[string]func(t *testing.T, ret []reflect.Value){
+				"F3GetECPowerTable": func(t *testing.T, ret []reflect.Value) {
+					// special case because it simply returns power table from EC which is not F3 dependent
+					require.NotNil(t, ret[0].Interface(), "unexpected return value")
+				},
+			},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.mode, func(t *testing.T) {
+			ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+			defer cancel()
+
+			opts := []any{kit.MockProofs()}
+			if tc.mode == "disabled" {
+				opts = append(opts, kit.F3Enabled(nil))
+			}
+
+			client, miner, ens := kit.EnsembleMinimal(t, opts...)
+			ens.InterconnectAll().BeginMining(2 * time.Millisecond)
+			ens.Start()
+
+			head := client.WaitTillChain(ctx, kit.HeightAtLeast(10))
+
+			rctx := reflect.ValueOf(ctx)
+			rtsk := reflect.ValueOf(head.Key())
+			rminer := reflect.ValueOf(miner.ActorAddr)
+			rticket := reflect.ValueOf([]byte("fish"))
+			rone := reflect.ValueOf(uint64(1))
+
+			calls := map[string][]reflect.Value{
+				"F3GetOrRenewParticipationTicket": {rctx, rminer, rticket, rone},
+				"F3Participate":                   {rctx, rticket},
+				"F3GetCertificate":                {rctx, rone},
+				"F3GetLatestCertificate":          {rctx},
+				"F3GetManifest":                   {rctx},
+				"F3GetECPowerTable":               {rctx, rtsk},
+				"F3GetF3PowerTable":               {rctx, rtsk},
+				"F3IsRunning":                     {rctx},
+			}
+
+			for fn, args := range calls {
+				t.Run(fn, func(t *testing.T) {
+					ret := reflect.ValueOf(client).MethodByName(fn).Call(args)
+
+					if expectedValue, hasExpectedValue := tc.expectedValues[fn]; hasExpectedValue {
+						require.Equal(t, expectedValue, ret[0].Interface(), "unexpected return value")
+					}
+
+					if expectedError, hasExpectedError := tc.expectedErrors[fn]; hasExpectedError {
+						switch err := expectedError.(type) {
+						case error:
+							require.ErrorIs(t, ret[1].Interface().(error), err, "unexpected error")
+						case string:
+							require.ErrorContains(t, ret[1].Interface().(error), err, "unexpected error")
+						}
+					} else {
+						require.Nil(t, ret[1].Interface(), "unexpected error")
+					}
+
+					if validate, hasValidate := tc.customValidateReturn[fn]; hasValidate {
+						validate(t, ret)
+					}
+				})
+			}
+		})
+	}
+}
+
 // TestF3_Rebootstrap tests F3 can be rebootsrapped by changing the manifest
 // without disrupting miner participation.
 func TestF3_Rebootstrap(t *testing.T) {

node/impl/full/f3.go

@@ -25,11 +25,11 @@ type F3API struct {
 func (f3api *F3API) F3GetOrRenewParticipationTicket(ctx context.Context, miner address.Address, previous api.F3ParticipationTicket, instances uint64) (api.F3ParticipationTicket, error) {
 	if f3api.F3 == nil {
 		log.Infof("F3GetParticipationTicket called for %v, F3 is disabled", miner)
-		return api.F3ParticipationTicket{}, api.ErrF3Disabled
+		return nil, api.ErrF3Disabled
 	}
 	minerID, err := address.IDFromAddress(miner)
 	if err != nil {
-		return api.F3ParticipationTicket{}, xerrors.Errorf("miner address is not of ID type: %v: %w", miner, err)
+		return nil, xerrors.Errorf("miner address is not of ID type: %v: %w", miner, err)
 	}
 	return f3api.F3.GetOrRenewParticipationTicket(ctx, minerID, previous, instances)
 }
@@ -61,7 +61,7 @@ func (f3api *F3API) F3GetManifest(ctx context.Context) (*manifest.Manifest, erro
 	if f3api.F3 == nil {
 		return nil, api.ErrF3Disabled
 	}
-	return f3api.F3.GetManifest(ctx), nil
+	return f3api.F3.GetManifest(ctx)
 }
 
 func (f3api *F3API) F3IsRunning(context.Context) (bool, error) {