feat(x/ecocredit): add Basket query (#753)

* feat(x/ecocredit): add Basket query

* pulsar to proto

* fix test

* Update x/ecocredit/server/basket/query_basket_test.go

Co-authored-by: Tyler <48813565+technicallyty@users.noreply.github.com>

Co-authored-by: Aaron Craelius <aaron@regen.network>
Co-authored-by: Tyler <48813565+technicallyty@users.noreply.github.com>

x/ecocredit/server/basket/query_basket.go

@@ -2,11 +2,27 @@ package basket
 
 import (
 	"context"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
 
 	baskettypes "github.com/regen-network/regen-ledger/x/ecocredit/basket"
 )
 
 func (k Keeper) Basket(ctx context.Context, request *baskettypes.QueryBasketRequest) (*baskettypes.QueryBasketResponse, error) {
-	//TODO implement me
-	panic("implement me")
+	if request == nil {
+		return nil, status.Errorf(codes.InvalidArgument, "empty request")
+	}
+
+	basket, err := k.stateStore.BasketStore().GetByBasketDenom(ctx, request.BasketDenom)
+	if err != nil {
+		return nil, err
+	}
+
+	basketGogo := &baskettypes.Basket{}
+	err = PulsarToGogoSlow(basket, basketGogo)
+	if err != nil {
+		return nil, err
+	}
+
+	return &baskettypes.QueryBasketResponse{Basket: basketGogo}, nil
 }

x/ecocredit/server/basket/query_basket_test.go

@@ -0,0 +1,55 @@
+package basket_test
+
+import (
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	"github.com/stretchr/testify/require"
+
+	"github.com/cosmos/cosmos-sdk/orm/model/ormdb"
+	"github.com/cosmos/cosmos-sdk/orm/model/ormtable"
+	"github.com/cosmos/cosmos-sdk/orm/testing/ormtest"
+
+	basketv1 "github.com/regen-network/regen-ledger/api/regen/ecocredit/basket/v1"
+	baskettypes "github.com/regen-network/regen-ledger/x/ecocredit/basket"
+	"github.com/regen-network/regen-ledger/x/ecocredit/server"
+	"github.com/regen-network/regen-ledger/x/ecocredit/server/basket"
+	"github.com/regen-network/regen-ledger/x/ecocredit/server/basket/mocks"
+)
+
+func TestKeeper_Basket(t *testing.T) {
+	ctx := ormtable.WrapContextDefault(ormtest.NewMemoryBackend())
+
+	// prepare database
+	db, err := ormdb.NewModuleDB(server.ModuleSchema, ormdb.ModuleDBOptions{})
+	stateStore, err := basketv1.NewStateStore(db)
+	require.NoError(t, err)
+
+	// setup test keeper
+	ctrl := gomock.NewController(t)
+	require.NoError(t, err)
+	bankKeeper := mocks.NewMockBankKeeper(ctrl)
+	ecocreditKeeper := mocks.NewMockEcocreditKeeper(ctrl)
+	k := basket.NewKeeper(db, ecocreditKeeper, bankKeeper)
+
+	// add a basket
+	basketDenom := "foo"
+	batchDenom := "bar"
+	err = stateStore.BasketStore().Insert(ctx, &basketv1.Basket{
+		BasketDenom: basketDenom,
+	})
+	require.NoError(t, err)
+
+	// query
+	res, err := k.Basket(ctx, &baskettypes.QueryBasketRequest{
+		BasketDenom: basketDenom,
+	})
+	require.NoError(t, err)
+	require.Equal(t, basketDenom, res.Basket.BasketDenom)
+
+	// bad query
+	res, err = k.Basket(ctx, &baskettypes.QueryBasketRequest{
+		BasketDenom: batchDenom,
+	})
+	require.Error(t, err)
+}