From 68f0ace86d77faa90601ddad77f5631c66151467 Mon Sep 17 00:00:00 2001
From: Aaron Buchwald <aaron.buchwald56@gmail.com>
Date: Tue, 8 Dec 2020 19:45:16 -0500
Subject: Add unit tests for atomic tx issuance

---
 plugin/evm/vm_test.go | 125 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 124 insertions(+), 1 deletion(-)

(limited to 'plugin/evm/vm_test.go')

diff --git a/plugin/evm/vm_test.go b/plugin/evm/vm_test.go
index 0e9c102..ecdc991 100644
--- a/plugin/evm/vm_test.go
+++ b/plugin/evm/vm_test.go
@@ -13,10 +13,13 @@ import (
 	"github.com/ava-labs/avalanchego/database/prefixdb"
 	"github.com/ava-labs/avalanchego/ids"
 	"github.com/ava-labs/avalanchego/snow"
+	"github.com/ava-labs/avalanchego/snow/choices"
 	engCommon "github.com/ava-labs/avalanchego/snow/engine/common"
 	"github.com/ava-labs/avalanchego/utils/crypto"
 	"github.com/ava-labs/avalanchego/utils/formatting"
 	"github.com/ava-labs/avalanchego/utils/logging"
+	"github.com/ava-labs/avalanchego/vms/components/avax"
+	"github.com/ava-labs/avalanchego/vms/secp256k1fx"
 	"github.com/ava-labs/coreth/core"
 	"github.com/ethereum/go-ethereum/common"
 )
@@ -134,5 +137,125 @@ func GenesisVM(t *testing.T, finishBootstrapping bool) (chan engCommon.Message,
 }
 
 func TestVMGenesis(t *testing.T) {
-	_, _, _, _ = GenesisVM(t, true)
+	_, vm, _, _ := GenesisVM(t, true)
+
+	defer func() {
+		if err := vm.Shutdown(); err != nil {
+			t.Fatal(err)
+		}
+	}()
+}
+
+func TestIssueTxs(t *testing.T) {
+	issuer, vm, _, sharedMemory := GenesisVM(t, true)
+
+	defer func() {
+		if err := vm.Shutdown(); err != nil {
+			t.Fatal(err)
+		}
+	}()
+
+	importAmount := uint64(10000000)
+	utxoID := avax.UTXOID{
+		TxID: ids.ID{
+			0x0f, 0x2f, 0x4f, 0x6f, 0x8e, 0xae, 0xce, 0xee,
+			0x0d, 0x2d, 0x4d, 0x6d, 0x8c, 0xac, 0xcc, 0xec,
+			0x0b, 0x2b, 0x4b, 0x6b, 0x8a, 0xaa, 0xca, 0xea,
+			0x09, 0x29, 0x49, 0x69, 0x88, 0xa8, 0xc8, 0xe8,
+		},
+	}
+
+	utxo := &avax.UTXO{
+		UTXOID: utxoID,
+		Asset:  avax.Asset{ID: vm.ctx.AVAXAssetID},
+		Out: &secp256k1fx.TransferOutput{
+			Amt: importAmount,
+			OutputOwners: secp256k1fx.OutputOwners{
+				Threshold: 1,
+				Addrs:     []ids.ShortID{testKeys[0].PublicKey().Address()},
+			},
+		},
+	}
+	utxoBytes, err := vm.codec.Marshal(codecVersion, utxo)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	xChainSharedMemory := sharedMemory.NewSharedMemory(vm.ctx.XChainID)
+	inputID := utxo.InputID()
+	if err := xChainSharedMemory.Put(vm.ctx.ChainID, []*atomic.Element{{
+		Key:   inputID[:],
+		Value: utxoBytes,
+		Traits: [][]byte{
+			testKeys[0].PublicKey().Address().Bytes(),
+		},
+	}}); err != nil {
+		t.Fatal(err)
+	}
+
+	importTx, err := vm.newImportTx(vm.ctx.XChainID, testEthAddrs[0], []*crypto.PrivateKeySECP256K1R{testKeys[0]})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := vm.issueTx(importTx); err != nil {
+		t.Fatal(err)
+	}
+
+	<-issuer
+
+	blk, err := vm.BuildBlock()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if status := blk.Status(); status != choices.Processing {
+		t.Fatalf("Expected status of built block to be %s, but found %s", choices.Processing, status)
+	}
+
+	if err := blk.Accept(); err != nil {
+		t.Fatal(err)
+	}
+
+	if status := blk.Status(); status != choices.Accepted {
+		t.Fatalf("Expected status of accepted block to be %s, but found %s", choices.Accepted, status)
+	}
+
+	lastAcceptedID := vm.LastAccepted()
+	if lastAcceptedID != blk.ID() {
+		t.Fatalf("Expected last accepted blockID to be the accepted block: %s, but found %s", blk.ID(), lastAcceptedID)
+	}
+
+	exportTx, err := vm.newExportTx(vm.ctx.AVAXAssetID, importAmount-vm.txFee-1, vm.ctx.XChainID, testShortIDAddrs[0], []*crypto.PrivateKeySECP256K1R{testKeys[0]})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := vm.issueTx(exportTx); err != nil {
+		t.Fatal(err)
+	}
+
+	<-issuer
+
+	blk2, err := vm.BuildBlock()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if status := blk2.Status(); status != choices.Processing {
+		t.Fatalf("Expected status of built block to be %s, but found %s", choices.Processing, status)
+	}
+
+	if err := blk2.Accept(); err != nil {
+		t.Fatal(err)
+	}
+
+	if status := blk2.Status(); status != choices.Accepted {
+		t.Fatalf("Expected status of accepted block to be %s, but found %s", choices.Accepted, status)
+	}
+
+	lastAcceptedID = vm.LastAccepted()
+	if lastAcceptedID != blk2.ID() {
+		t.Fatalf("Expected last accepted blockID to be the accepted block: %s, but found %s", blk2.ID(), lastAcceptedID)
+	}
 }
-- 
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