added index store key and basic test case

Signed-off-by: Lorenz Herzberger <lorenzherzberger@gmail.com>

app/app.go

@@ -515,6 +515,7 @@ func New(
 	app.MachineKeeper = *machinemodulekeeper.NewKeeper(
 		appCodec,
 		keys[machinemoduletypes.StoreKey],
+		keys[machinemoduletypes.IndexKey],
 		keys[machinemoduletypes.MemStoreKey],
 		app.GetSubspace(machinemoduletypes.ModuleName),
 	)

testutil/keeper/machine.go

@@ -3,6 +3,9 @@ package keeper
 import (
 	"testing"
 
+	"planetmint-go/x/machine/keeper"
+	"planetmint-go/x/machine/types"
+
 	"github.com/cosmos/cosmos-sdk/codec"
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	"github.com/cosmos/cosmos-sdk/store"
@@ -13,17 +16,17 @@ import (
 	"github.com/tendermint/tendermint/libs/log"
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
 	tmdb "github.com/tendermint/tm-db"
-	"planetmint-go/x/machine/keeper"
-	"planetmint-go/x/machine/types"
 )
 
 func MachineKeeper(t testing.TB) (*keeper.Keeper, sdk.Context) {
 	storeKey := sdk.NewKVStoreKey(types.StoreKey)
+	indexStoreKey := sdk.NewKVStoreKey(types.IndexKey)
 	memStoreKey := storetypes.NewMemoryStoreKey(types.MemStoreKey)
 
 	db := tmdb.NewMemDB()
 	stateStore := store.NewCommitMultiStore(db)
 	stateStore.MountStoreWithDB(storeKey, storetypes.StoreTypeIAVL, db)
+	stateStore.MountStoreWithDB(indexStoreKey, storetypes.StoreTypeIAVL, db)
 	stateStore.MountStoreWithDB(memStoreKey, storetypes.StoreTypeMemory, nil)
 	require.NoError(t, stateStore.LoadLatestVersion())
 
@@ -39,6 +42,7 @@ func MachineKeeper(t testing.TB) (*keeper.Keeper, sdk.Context) {
 	k := keeper.NewKeeper(
 		cdc,
 		storeKey,
+		indexStoreKey,
 		memStoreKey,
 		paramsSubspace,
 	)

x/machine/keeper/keeper.go

@@ -16,6 +16,7 @@ type (
 	Keeper struct {
 		cdc           codec.BinaryCodec
 		storeKey      storetypes.StoreKey
+		indexStoreKey storetypes.StoreKey
 		memKey        storetypes.StoreKey
 		paramstore    paramtypes.Subspace
 	}
@@ -24,6 +25,7 @@ type (
 func NewKeeper(
 	cdc codec.BinaryCodec,
 	storeKey,
+	indexStoreKey,
 	memKey storetypes.StoreKey,
 	ps paramtypes.Subspace,
 
@@ -36,6 +38,7 @@ func NewKeeper(
 	return &Keeper{
 		cdc:           cdc,
 		storeKey:      storeKey,
+		indexStoreKey: indexStoreKey,
 		memKey:        memKey,
 		paramstore:    ps,
 	}

x/machine/keeper/machine_test.go

@@ -0,0 +1,33 @@
+package keeper_test
+
+import (
+	"testing"
+
+	keepertest "planetmint-go/testutil/keeper"
+	"planetmint-go/x/machine/keeper"
+	"planetmint-go/x/machine/types"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/stretchr/testify/assert"
+)
+
+func createNMachine(keeper *keeper.Keeper, ctx sdk.Context, n int) []types.Machine {
+	items := make([]types.Machine, n)
+	for i := range items {
+		// fill out machine
+		items[i].IssuerPlanetmint = "asd"
+		items[i].IssuerLiquid = "dsa"
+		keeper.StoreMachine(ctx, items[i])
+	}
+	return items
+}
+
+func TestGetMachine(t *testing.T) {
+	keeper, ctx := keepertest.MachineKeeper(t)
+	items := createNMachine(keeper, ctx, 10)
+	for _, item := range items {
+		machineById, found := keeper.GetMachine(ctx, item.IssuerPlanetmint)
+		assert.True(t, found)
+		assert.Equal(t, item, machineById)
+	}
+}

x/machine/types/keys.go

@@ -14,6 +14,8 @@ const (
 	MemStoreKey = "mem_machine"
 
 	MachineKey = "Machine/value/"
+
+	IndexKey = "Machine/index/"
 )
 
 func KeyPrefix(p string) []byte {