OSDN Git Service

add free gas (#295)
[bytom/vapor.git] / protocol / validation / tx_test.go
index 874ce60..60b34ab 100644 (file)
@@ -34,7 +34,7 @@ func TestGasStatus(t *testing.T) {
                                BTMValue: 0,
                        },
                        output: &GasState{
-                               GasLeft:  10000 / consensus.VMGasRate,
+                               GasLeft:  10000/consensus.ActiveNetParams.VMGasRate + consensus.ActiveNetParams.DefaultGasCredit,
                                GasUsed:  0,
                                BTMValue: 10000,
                        },
@@ -61,7 +61,7 @@ func TestGasStatus(t *testing.T) {
                },
                {
                        input: &GasState{
-                               GasLeft:  consensus.DefaultGasCredit,
+                               GasLeft:  consensus.ActiveNetParams.DefaultGasCredit,
                                GasUsed:  0,
                                BTMValue: 0,
                        },
@@ -77,7 +77,7 @@ func TestGasStatus(t *testing.T) {
                },
                {
                        input: &GasState{
-                               GasLeft:  consensus.DefaultGasCredit,
+                               GasLeft:  consensus.ActiveNetParams.DefaultGasCredit,
                                GasUsed:  0,
                                BTMValue: 0,
                        },
@@ -231,13 +231,13 @@ func TestOverflow(t *testing.T) {
                txInputs := make([]*types.TxInput, 0, len(inputs))
                txOutputs := make([]*types.TxOutput, 0, len(outputs))
 
-               for _, amount := range inputs {
-                       txInput := types.NewSpendInput(nil, *sourceID, *consensus.BTMAssetID, amount, 0, ctrlProgram)
+               for i, amount := range inputs {
+                       txInput := types.NewSpendInput(nil, *sourceID, *consensus.BTMAssetID, amount, uint64(i), ctrlProgram)
                        txInputs = append(txInputs, txInput)
                }
 
                for _, amount := range outputs {
-                       txOutput := types.NewTxOutput(*consensus.BTMAssetID, amount, ctrlProgram)
+                       txOutput := types.NewIntraChainOutput(*consensus.BTMAssetID, amount, ctrlProgram)
                        txOutputs = append(txOutputs, txOutput)
                }
 
@@ -323,24 +323,25 @@ func TestTxValidation(t *testing.T) {
 
        addCoinbase := func(assetID *bc.AssetID, amount uint64, arbitrary []byte) {
                coinbase := bc.NewCoinbase(arbitrary)
-               txOutput := types.NewTxOutput(*assetID, amount, []byte{byte(vm.OP_TRUE)})
+               txOutput := types.NewIntraChainOutput(*assetID, amount, []byte{byte(vm.OP_TRUE)})
+               assetAmount := txOutput.AssetAmount()
                muxID := getMuxID(tx)
-               coinbase.SetDestination(muxID, &txOutput.AssetAmount, uint64(len(mux.Sources)))
+               coinbase.SetDestination(muxID, &assetAmount, uint64(len(mux.Sources)))
                coinbaseID := bc.EntryID(coinbase)
                tx.Entries[coinbaseID] = coinbase
 
                mux.Sources = append(mux.Sources, &bc.ValueSource{
                        Ref:   &coinbaseID,
-                       Value: &txOutput.AssetAmount,
+                       Value: &assetAmount,
                })
 
                src := &bc.ValueSource{
                        Ref:      muxID,
-                       Value:    &txOutput.AssetAmount,
+                       Value:    &assetAmount,
                        Position: uint64(len(tx.ResultIds)),
                }
-               prog := &bc.Program{txOutput.VMVersion, txOutput.ControlProgram}
-               output := bc.NewOutput(src, prog, uint64(len(tx.ResultIds)))
+               prog := &bc.Program{txOutput.VMVersion(), txOutput.ControlProgram()}
+               output := bc.NewIntraChainOutput(src, prog, uint64(len(tx.ResultIds)))
                outputID := bc.EntryID(output)
                tx.Entries[outputID] = output
 
@@ -365,15 +366,6 @@ func TestTxValidation(t *testing.T) {
                {
                        desc: "unbalanced mux amounts",
                        f: func() {
-                               mux.Sources[0].Value.Amount++
-                               iss := tx.Entries[*mux.Sources[0].Ref].(*bc.Issuance)
-                               iss.WitnessDestination.Value.Amount++
-                       },
-                       err: ErrUnbalanced,
-               },
-               {
-                       desc: "unbalanced mux amounts",
-                       f: func() {
                                mux.WitnessDestinations[0].Value.Amount++
                        },
                        err: ErrUnbalanced,
@@ -387,22 +379,13 @@ func TestTxValidation(t *testing.T) {
                        err: nil,
                },
                {
-                       desc: "overflowing mux source amounts",
-                       f: func() {
-                               mux.Sources[0].Value.Amount = math.MaxInt64
-                               iss := tx.Entries[*mux.Sources[0].Ref].(*bc.Issuance)
-                               iss.WitnessDestination.Value.Amount = math.MaxInt64
-                       },
-                       err: ErrOverflow,
-               },
-               {
                        desc: "underflowing mux destination amounts",
                        f: func() {
                                mux.WitnessDestinations[0].Value.Amount = math.MaxInt64
-                               out := tx.Entries[*mux.WitnessDestinations[0].Ref].(*bc.Output)
+                               out := tx.Entries[*mux.WitnessDestinations[0].Ref].(*bc.IntraChainOutput)
                                out.Source.Value.Amount = math.MaxInt64
                                mux.WitnessDestinations[1].Value.Amount = math.MaxInt64
-                               out = tx.Entries[*mux.WitnessDestinations[1].Ref].(*bc.Output)
+                               out = tx.Entries[*mux.WitnessDestinations[1].Ref].(*bc.IntraChainOutput)
                                out.Source.Value.Amount = math.MaxInt64
                        },
                        err: ErrOverflow,
@@ -419,7 +402,7 @@ func TestTxValidation(t *testing.T) {
                {
                        desc: "mismatched output source / mux dest position",
                        f: func() {
-                               tx.Entries[*tx.ResultIds[0]].(*bc.Output).Source.Position = 1
+                               tx.Entries[*tx.ResultIds[0]].(*bc.IntraChainOutput).Source.Position = 1
                        },
                        err: ErrMismatchedPosition,
                },
@@ -440,28 +423,13 @@ func TestTxValidation(t *testing.T) {
                                fixture2 := sample(t, fixture)
                                tx2 := types.NewTx(*fixture2.tx).Tx
                                out2ID := tx2.ResultIds[0]
-                               out2 := tx2.Entries[*out2ID].(*bc.Output)
+                               out2 := tx2.Entries[*out2ID].(*bc.IntraChainOutput)
                                tx.Entries[*out2ID] = out2
                                mux.WitnessDestinations[0].Ref = out2ID
                        },
                        err: ErrMismatchedReference,
                },
                {
-                       desc: "mismatched input dest and mux source",
-                       f: func() {
-                               fixture2 := sample(t, fixture)
-                               tx2 := types.NewTx(*fixture2.tx).Tx
-                               input2ID := tx2.InputIDs[2]
-                               input2 := tx2.Entries[input2ID].(*bc.Spend)
-                               dest2Ref := input2.WitnessDestination.Ref
-                               dest2 := tx2.Entries[*dest2Ref].(*bc.Mux)
-                               tx.Entries[*dest2Ref] = dest2
-                               tx.Entries[input2ID] = input2
-                               mux.Sources[0].Ref = &input2ID
-                       },
-                       err: ErrMismatchedReference,
-               },
-               {
                        desc: "invalid mux destination position",
                        f: func() {
                                mux.WitnessDestinations[0].Position = 1
@@ -472,7 +440,7 @@ func TestTxValidation(t *testing.T) {
                        desc: "mismatched mux dest value / output source value",
                        f: func() {
                                outID := tx.ResultIds[0]
-                               out := tx.Entries[*outID].(*bc.Output)
+                               out := tx.Entries[*outID].(*bc.IntraChainOutput)
                                mux.WitnessDestinations[0].Value = &bc.AssetAmount{
                                        AssetId: out.Source.Value.AssetId,
                                        Amount:  out.Source.Value.Amount + 1,
@@ -496,14 +464,6 @@ func TestTxValidation(t *testing.T) {
                        },
                },
                {
-                       desc: "issuance program failure",
-                       f: func() {
-                               iss := txIssuance(t, tx, 0)
-                               iss.WitnessArguments[0] = []byte{}
-                       },
-                       err: vm.ErrFalseVMResult,
-               },
-               {
                        desc: "spend control program failure",
                        f: func() {
                                spend := txSpend(t, tx, 1)
@@ -515,7 +475,7 @@ func TestTxValidation(t *testing.T) {
                        desc: "mismatched spent source/witness value",
                        f: func() {
                                spend := txSpend(t, tx, 1)
-                               spentOutput := tx.Entries[*spend.SpentOutputId].(*bc.Output)
+                               spentOutput := tx.Entries[*spend.SpentOutputId].(*bc.IntraChainOutput)
                                spentOutput.Source.Value = &bc.AssetAmount{
                                        AssetId: spend.WitnessDestination.Value.AssetId,
                                        Amount:  spend.WitnessDestination.Value.Amount + 1,
@@ -540,7 +500,7 @@ func TestTxValidation(t *testing.T) {
                        err: bc.ErrMissingEntry,
                },
                {
-                       desc: "no gas spend input",
+                       desc: "normal check with no gas spend input",
                        f: func() {
                                spendID := mux.Sources[len(mux.Sources)-1].Ref
                                delete(tx.Entries, *spendID)
@@ -548,7 +508,7 @@ func TestTxValidation(t *testing.T) {
                                tx.GasInputIDs = nil
                                vs.gasStatus.GasLeft = 0
                        },
-                       err: vm.ErrRunLimitExceeded,
+                       err: nil,
                },
                {
                        desc: "no gas spend input, but set gas left, so it's ok",
@@ -573,24 +533,6 @@ func TestTxValidation(t *testing.T) {
                        err: ErrMismatchedValue,
                },
                {
-                       desc: "mismatched witness asset destination",
-                       f: func() {
-                               issuanceID := mux.Sources[0].Ref
-                               issuance := tx.Entries[*issuanceID].(*bc.Issuance)
-                               issuance.WitnessAssetDefinition.Data = &bc.Hash{V0: 9999}
-                       },
-                       err: ErrMismatchedAssetID,
-               },
-               {
-                       desc: "issuance witness position greater than length of mux sources",
-                       f: func() {
-                               issuanceID := mux.Sources[0].Ref
-                               issuance := tx.Entries[*issuanceID].(*bc.Issuance)
-                               issuance.WitnessDestination.Position = uint64(len(mux.Sources) + 1)
-                       },
-                       err: ErrPosition,
-               },
-               {
                        desc: "normal coinbase tx",
                        f: func() {
                                addCoinbase(consensus.BTMAssetID, 100000, nil)
@@ -615,7 +557,7 @@ func TestTxValidation(t *testing.T) {
                {
                        desc: "coinbase arbitrary size out of limit",
                        f: func() {
-                               arbitrary := make([]byte, consensus.CoinbaseArbitrarySizeLimit+1)
+                               arbitrary := make([]byte, consensus.ActiveNetParams.CoinbaseArbitrarySizeLimit+1)
                                addCoinbase(consensus.BTMAssetID, 100000, arbitrary)
                        },
                        err: ErrCoinbaseArbitraryOversize,
@@ -624,7 +566,7 @@ func TestTxValidation(t *testing.T) {
                        desc: "normal retirement output",
                        f: func() {
                                outputID := tx.ResultIds[0]
-                               output := tx.Entries[*outputID].(*bc.Output)
+                               output := tx.Entries[*outputID].(*bc.IntraChainOutput)
                                retirement := bc.NewRetirement(output.Source, output.Ordinal)
                                retirementID := bc.EntryID(retirement)
                                tx.Entries[retirementID] = retirement
@@ -638,8 +580,8 @@ func TestTxValidation(t *testing.T) {
                        desc: "ordinal doesn't matter for prevouts",
                        f: func() {
                                spend := txSpend(t, tx, 1)
-                               prevout := tx.Entries[*spend.SpentOutputId].(*bc.Output)
-                               newPrevout := bc.NewOutput(prevout.Source, prevout.ControlProgram, 10)
+                               prevout := tx.Entries[*spend.SpentOutputId].(*bc.IntraChainOutput)
+                               newPrevout := bc.NewIntraChainOutput(prevout.Source, prevout.ControlProgram, 10)
                                hash := bc.EntryID(newPrevout)
                                spend.SpentOutputId = &hash
                        },
@@ -701,7 +643,7 @@ func TestCoinbase(t *testing.T) {
                        types.NewCoinbaseInput(nil),
                },
                Outputs: []*types.TxOutput{
-                       types.NewTxOutput(*consensus.BTMAssetID, 888, cp),
+                       types.NewIntraChainOutput(*consensus.BTMAssetID, 888, cp),
                },
        })
 
@@ -731,7 +673,7 @@ func TestCoinbase(t *testing.T) {
                                                        types.NewCoinbaseInput(nil),
                                                },
                                                Outputs: []*types.TxOutput{
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 888, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 888, cp),
                                                },
                                        }),
                                },
@@ -752,8 +694,8 @@ func TestCoinbase(t *testing.T) {
                                                        types.NewSpendInput([][]byte{}, *newHash(8), *consensus.BTMAssetID, 100000000, 0, cp),
                                                },
                                                Outputs: []*types.TxOutput{
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 888, cp),
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 90000000, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 888, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 90000000, cp),
                                                },
                                        }),
                                },
@@ -770,12 +712,12 @@ func TestCoinbase(t *testing.T) {
                                        types.MapTx(&types.TxData{
                                                SerializedSize: 1,
                                                Inputs: []*types.TxInput{
-                                                       types.NewSpendInput([][]byte{}, *newHash(8), *consensus.BTMAssetID, 100000000, 0, cp),
                                                        types.NewCoinbaseInput(nil),
+                                                       types.NewSpendInput([][]byte{}, *newHash(8), *consensus.BTMAssetID, 100000000, 0, cp),
                                                },
                                                Outputs: []*types.TxOutput{
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 888, cp),
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 90000000, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 888, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 90000000, cp),
                                                },
                                        }),
                                },
@@ -795,8 +737,8 @@ func TestCoinbase(t *testing.T) {
                                                        types.NewSpendInput([][]byte{}, *newHash(8), *consensus.BTMAssetID, 100000000, 0, cp),
                                                },
                                                Outputs: []*types.TxOutput{
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 888, cp),
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 90000000, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 888, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 90000000, cp),
                                                },
                                        }),
                                },
@@ -816,8 +758,8 @@ func TestCoinbase(t *testing.T) {
                                                        types.NewSpendInput([][]byte{}, *newHash(8), *consensus.BTMAssetID, 100000000, 0, retire),
                                                },
                                                Outputs: []*types.TxOutput{
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 888, cp),
-                                                       types.NewTxOutput(*consensus.BTMAssetID, 90000000, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 888, cp),
+                                                       types.NewIntraChainOutput(*consensus.BTMAssetID, 90000000, cp),
                                                },
                                        }),
                                },
@@ -840,50 +782,6 @@ func TestCoinbase(t *testing.T) {
        }
 }
 
-func TestRuleAA(t *testing.T) {
-       testData := "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"
-       tx := types.Tx{}
-       if err := tx.UnmarshalText([]byte(testData)); err != nil {
-               t.Errorf("fail on unmarshal txData: %s", err)
-       }
-
-       cases := []struct {
-               block    *bc.Block
-               GasValid bool
-               err      error
-       }{
-               {
-                       block: &bc.Block{
-                               BlockHeader: &bc.BlockHeader{
-                                       Height: ruleAA - 1,
-                               },
-                       },
-                       GasValid: true,
-                       err:      ErrMismatchedPosition,
-               },
-               {
-                       block: &bc.Block{
-                               BlockHeader: &bc.BlockHeader{
-                                       Height: ruleAA,
-                               },
-                       },
-                       GasValid: false,
-                       err:      ErrEmptyInputIDs,
-               },
-       }
-
-       for i, c := range cases {
-               gasStatus, err := ValidateTx(tx.Tx, c.block)
-               if rootErr(err) != c.err {
-                       t.Errorf("#%d got error %s, want %s", i, err, c.err)
-               }
-               if c.GasValid != gasStatus.GasValid {
-                       t.Errorf("#%d got GasValid %t, want %t", i, gasStatus.GasValid, c.GasValid)
-               }
-       }
-
-}
-
 // TestTimeRange test the checkTimeRange function (txtest#1004)
 func TestTimeRange(t *testing.T) {
        cases := []struct {
@@ -911,7 +809,7 @@ func TestTimeRange(t *testing.T) {
        block := &bc.Block{
                BlockHeader: &bc.BlockHeader{
                        Height:    333,
-                       Timestamp: 1521625823,
+                       Timestamp: 1521625823000,
                },
        }
 
@@ -922,7 +820,7 @@ func TestTimeRange(t *testing.T) {
                        mockGasTxInput(),
                },
                Outputs: []*types.TxOutput{
-                       types.NewTxOutput(*consensus.BTMAssetID, 1, []byte{0x6a}),
+                       types.NewIntraChainOutput(*consensus.BTMAssetID, 1, []byte{0x6a}),
                },
        })
 
@@ -934,53 +832,6 @@ func TestTimeRange(t *testing.T) {
        }
 }
 
-func TestStandardTx(t *testing.T) {
-       fixture := sample(t, nil)
-       tx := types.NewTx(*fixture.tx).Tx
-
-       cases := []struct {
-               desc string
-               f    func()
-               err  error
-       }{
-               {
-                       desc: "normal standard tx",
-                       err:  nil,
-               },
-               {
-                       desc: "not standard tx in spend input",
-                       f: func() {
-                               inputID := tx.GasInputIDs[0]
-                               spend := tx.Entries[inputID].(*bc.Spend)
-                               spentOutput, err := tx.Output(*spend.SpentOutputId)
-                               if err != nil {
-                                       t.Fatal(err)
-                               }
-                               spentOutput.ControlProgram = &bc.Program{Code: []byte{0}}
-                       },
-                       err: ErrNotStandardTx,
-               },
-               {
-                       desc: "not standard tx in output",
-                       f: func() {
-                               outputID := tx.ResultIds[0]
-                               output := tx.Entries[*outputID].(*bc.Output)
-                               output.ControlProgram = &bc.Program{Code: []byte{0}}
-                       },
-                       err: ErrNotStandardTx,
-               },
-       }
-
-       for i, c := range cases {
-               if c.f != nil {
-                       c.f()
-               }
-               if err := checkStandardTx(tx, 0); err != c.err {
-                       t.Errorf("case #%d (%s) got error %t, want %t", i, c.desc, err, c.err)
-               }
-       }
-}
-
 func TestValidateTxVersion(t *testing.T) {
        cases := []struct {
                desc  string
@@ -1084,8 +935,7 @@ func sample(tb testing.TB, in *txFixture) *txFixture {
                result.assetDef = []byte{2}
        }
        if result.assetID.IsZero() {
-               refdatahash := hashData(result.assetDef)
-               result.assetID = bc.ComputeAssetID(result.issuanceProg.Code, result.issuanceProg.VmVersion, &refdatahash)
+               result.assetID = bc.AssetID{V0: 9999}
        }
 
        if result.txVersion == 0 {
@@ -1105,7 +955,7 @@ func sample(tb testing.TB, in *txFixture) *txFixture {
                args2 := [][]byte{{6}, {7}}
 
                result.txInputs = []*types.TxInput{
-                       types.NewIssuanceInput([]byte{3}, 10, result.issuanceProg.Code, result.issuanceArgs, result.assetDef),
+                       types.NewSpendInput(nil, *newHash(9), result.assetID, 10, 0, []byte{byte(vm.OP_TRUE)}),
                        types.NewSpendInput(args1, *newHash(5), result.assetID, 20, 0, cp1),
                        types.NewSpendInput(args2, *newHash(8), result.assetID, 40, 0, cp2),
                }
@@ -1124,8 +974,8 @@ func sample(tb testing.TB, in *txFixture) *txFixture {
                }
 
                result.txOutputs = []*types.TxOutput{
-                       types.NewTxOutput(result.assetID, 25, cp1),
-                       types.NewTxOutput(result.assetID, 45, cp2),
+                       types.NewIntraChainOutput(result.assetID, 25, cp1),
+                       types.NewIntraChainOutput(result.assetID, 45, cp2),
                }
        }
 
@@ -1172,15 +1022,6 @@ func newAssetID(n byte) *bc.AssetID {
        return &a
 }
 
-func txIssuance(t *testing.T, tx *bc.Tx, index int) *bc.Issuance {
-       id := tx.InputIDs[index]
-       res, err := tx.Issuance(id)
-       if err != nil {
-               t.Fatal(err)
-       }
-       return res
-}
-
 func txSpend(t *testing.T, tx *bc.Tx, index int) *bc.Spend {
        id := tx.InputIDs[index]
        res, err := tx.Spend(id)
@@ -1193,7 +1034,7 @@ func txSpend(t *testing.T, tx *bc.Tx, index int) *bc.Spend {
 func getMuxID(tx *bc.Tx) *bc.Hash {
        out := tx.Entries[*tx.ResultIds[0]]
        switch result := out.(type) {
-       case *bc.Output:
+       case *bc.IntraChainOutput:
                return result.Source.Ref
        case *bc.Retirement:
                return result.Source.Ref