Move group related functions to group.go

app/group.go

@@ -1,25 +1,31 @@
 package app
 
 import (
+	"context"
+
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/group"
-	groupkeeper "github.com/cosmos/cosmos-sdk/x/group/keeper"
 )
 
 // GroupCheckerFunc convenient type to match the GroupChecker interface.
 type GroupCheckerFunc func(sdk.Context, sdk.AccAddress) bool
 
+// GroupPolicyQuerier provides functionality to query group policies.
+type GroupPolicyQuerier interface {
+	GroupPolicyInfo(goCtx context.Context, request *group.QueryGroupPolicyInfoRequest) (*group.QueryGroupPolicyInfoResponse, error)
+}
+
 // IsGroupAddress checks if the account is a group address.
 func (t GroupCheckerFunc) IsGroupAddress(ctx sdk.Context, account sdk.AccAddress) bool {
 	return t(ctx, account)
 }
 
 // NewGroupChecker creates a new GroupChecker function for checking if an account is in a group.
-func NewGroupCheckerFunc(keeper groupkeeper.Keeper) GroupCheckerFunc {
+func NewGroupCheckerFunc(querier GroupPolicyQuerier) GroupCheckerFunc {
 	return GroupCheckerFunc(func(ctx sdk.Context, account sdk.AccAddress) bool {
 		msg := &group.QueryGroupPolicyInfoRequest{Address: account.String()}
 		goCtx := sdk.WrapSDKContext(ctx)
-		_, err := keeper.GroupPolicyInfo(goCtx, msg)
+		_, err := querier.GroupPolicyInfo(goCtx, msg)
 		return err == nil
 	})
 }

app/group_test.go

@@ -0,0 +1,14 @@
+package app
+
+import "testing"
+
+type MockGroupPolicyQuerier struct {
+}
+
+func TestNewGroupCheckerFunc(t *testing.T) {
+
+}
+
+func TestIsGroupAddress(t *testing.T) {
+
+}