basecoin/tests: send real tx, check balances (#471)

examples/basecoin/app/app_test.go

@@ -2,6 +2,7 @@ package app
 
 import (
 	"encoding/json"
+	"fmt"
 	"os"
 	"testing"
 
@@ -28,7 +29,7 @@ func newBasecoinApp() *BasecoinApp {
 func TestSendMsg(t *testing.T) {
 	bapp := newBasecoinApp()
 
-	// Construct a SendMsg.
+	// Construct a SendMsg
 	var msg = bank.SendMsg{
 		Inputs: []bank.Input{
 			{
@@ -65,7 +66,7 @@ func TestSendMsg(t *testing.T) {
 func TestGenesis(t *testing.T) {
 	bapp := newBasecoinApp()
 
-	// construct some genesis bytes to reflect basecoin/types/AppAccount
+	// Construct some genesis bytes to reflect basecoin/types/AppAccount
 	pk := crypto.GenPrivKeyEd25519().PubKey()
 	addr := pk.Address()
 	coins, err := sdk.ParseCoins("77foocoin,99barcoin")
@@ -86,9 +87,93 @@ func TestGenesis(t *testing.T) {
 	vals := []abci.Validator{}
 	bapp.InitChain(abci.RequestInitChain{vals, stateBytes})
 
-	// a checkTx context
+	// A checkTx context
 	ctx := bapp.BaseApp.NewContext(true, abci.Header{})
 
 	res1 := bapp.accountMapper.GetAccount(ctx, baseAcc.Address)
 	assert.Equal(t, acc, res1)
 }
+
+func TestSendMsgWithAccounts(t *testing.T) {
+	bapp := newBasecoinApp()
+
+	// Construct some genesis bytes to reflect basecoin/types/AppAccount
+	// First key goes in genesis, used for sending
+	priv1 := crypto.GenPrivKeyEd25519()
+	pk1 := priv1.PubKey()
+	addr1 := pk1.Address()
+
+	// Second key receies
+	pk2 := crypto.GenPrivKeyEd25519().PubKey()
+	addr2 := pk2.Address()
+
+	// Give 77 foocoin to the first key
+	coins, err := sdk.ParseCoins("77foocoin")
+	require.Nil(t, err)
+	baseAcc := auth.BaseAccount{
+		Address: addr1,
+		Coins:   coins,
+	}
+	acc1 := &types.AppAccount{baseAcc, "foobart"}
+
+	// Construct genesis state
+	genesisState := types.GenesisState{
+		Accounts: []*types.GenesisAccount{
+			types.NewGenesisAccount(acc1),
+		},
+	}
+	stateBytes, err := json.MarshalIndent(genesisState, "", "\t")
+
+	// Initialize the chain
+	vals := []abci.Validator{}
+	bapp.InitChain(abci.RequestInitChain{vals, stateBytes})
+
+	// A checkTx context (true)
+	ctxCheck := bapp.BaseApp.NewContext(true, abci.Header{})
+
+	res1 := bapp.accountMapper.GetAccount(ctxCheck, addr1)
+	assert.Equal(t, acc1, res1)
+
+	// Construct a SendMsg
+	var msg = bank.SendMsg{
+		Inputs: []bank.Input{
+			{
+				Address:  crypto.Address(addr1),
+				Coins:    sdk.Coins{{"foocoin", 10}},
+				Sequence: 1,
+			},
+		},
+		Outputs: []bank.Output{
+			{
+				Address: crypto.Address(addr2),
+				Coins:   sdk.Coins{{"foocoin", 10}},
+			},
+		},
+	}
+
+	// Sign the tx
+	sig := priv1.Sign(msg.GetSignBytes())
+	tx := sdk.NewStdTx(msg, []sdk.StdSignature{{
+		PubKey:    priv1.PubKey(),
+		Signature: sig,
+	}})
+
+	// Run a Check
+	res := bapp.Check(tx)
+	assert.Equal(t, sdk.CodeOK, res.Code, res.Log)
+
+	// Simulate a Block
+	bapp.BeginBlock(abci.RequestBeginBlock{})
+	res = bapp.Deliver(tx)
+	assert.Equal(t, sdk.CodeOK, res.Code, res.Log)
+
+	// A deliverTx context
+	ctxDeliver := bapp.BaseApp.NewContext(false, abci.Header{})
+
+	// Check balances
+	res2 := bapp.accountMapper.GetAccount(ctxDeliver, addr1)
+	res3 := bapp.accountMapper.GetAccount(ctxDeliver, addr2)
+
+	assert.Equal(t, fmt.Sprintf("%v", res2.GetCoins()), "67foocoin")
+	assert.Equal(t, fmt.Sprintf("%v", res3.GetCoins()), "10foocoin")
+}