feat(cli): add module-account cli cmd and grpc get api (#13612)

x/auth/keeper/grpc_query.go

@@ -135,6 +135,31 @@ func (ak AccountKeeper) ModuleAccounts(c context.Context, req *types.QueryModule
 	return &types.QueryModuleAccountsResponse{Accounts: modAccounts}, nil
 }
 
+// ModuleAccountByName returns module account by module name
+func (ak AccountKeeper) ModuleAccountByName(c context.Context, req *types.QueryModuleAccountByNameRequest) (*types.QueryModuleAccountByNameResponse, error) {
+	if req == nil {
+		return nil, status.Errorf(codes.InvalidArgument, "empty request")
+	}
+
+	if len(req.Name) == 0 {
+		return nil, status.Error(codes.InvalidArgument, "module name is empty")
+	}
+
+	ctx := sdk.UnwrapSDKContext(c)
+	moduleName := req.Name
+
+	account := ak.GetModuleAccount(ctx, moduleName)
+	if account == nil {
+		return nil, status.Errorf(codes.NotFound, "account %s not found", moduleName)
+	}
+	any, err := codectypes.NewAnyWithValue(account)
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, err.Error())
+	}
+
+	return &types.QueryModuleAccountByNameResponse{Account: any}, nil
+}
+
 // Bech32Prefix returns the keeper internally stored bech32 prefix.
 func (ak AccountKeeper) Bech32Prefix(ctx context.Context, req *types.Bech32PrefixRequest) (*types.Bech32PrefixResponse, error) {
 	bech32Prefix, err := ak.getBech32Prefix()

x/auth/keeper/grpc_query_test.go

@@ -350,6 +350,61 @@ func (suite *KeeperTestSuite) TestGRPCQueryModuleAccounts() {
 	}
 }
 
+func (suite *KeeperTestSuite) TestGRPCQueryModuleAccountByName() {
+	var req *types.QueryModuleAccountByNameRequest
+
+	testCases := []struct {
+		msg       string
+		malleate  func()
+		expPass   bool
+		posttests func(res *types.QueryModuleAccountByNameResponse)
+	}{
+		{
+			"success",
+			func() {
+				req = &types.QueryModuleAccountByNameRequest{Name: "mint"}
+			},
+			true,
+			func(res *types.QueryModuleAccountByNameResponse) {
+				var account types.AccountI
+				err := suite.encCfg.InterfaceRegistry.UnpackAny(res.Account, &account)
+				suite.Require().NoError(err)
+
+				moduleAccount, ok := account.(types.ModuleAccountI)
+				suite.Require().True(ok)
+				suite.Require().Equal(moduleAccount.GetName(), "mint")
+			},
+		},
+		{
+			"invalid module name",
+			func() {
+				req = &types.QueryModuleAccountByNameRequest{Name: "gover"}
+			},
+			false,
+			func(res *types.QueryModuleAccountByNameResponse) {
+			},
+		},
+	}
+
+	for _, tc := range testCases {
+		suite.Run(fmt.Sprintf("Case %s", tc.msg), func() {
+			suite.SetupTest() // reset
+			tc.malleate()
+			ctx := sdk.WrapSDKContext(suite.ctx)
+			res, err := suite.queryClient.ModuleAccountByName(ctx, req)
+			if tc.expPass {
+				suite.Require().NoError(err)
+				suite.Require().NotNil(res)
+			} else {
+				suite.Require().Error(err)
+				suite.Require().Nil(res)
+			}
+
+			tc.posttests(res)
+		})
+	}
+}
+
 func (suite *KeeperTestSuite) TestBech32Prefix() {
 	suite.SetupTest() // reset
 	req := &types.Bech32PrefixRequest{}