payments/internal/connectors/plugins/public/bankingcircle/accounts_test.go

package bankingcircle

import (
	"encoding/json"
	"errors"
	"fmt"
	"time"

	"github.com/formancehq/payments/internal/connectors/plugins/public/bankingcircle/client"
	"github.com/formancehq/payments/internal/models"
	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
	"go.uber.org/mock/gomock"
)

var _ = Describe("BankingCircle Plugin Accounts", func() {
	var (
		ctrl *gomock.Controller
		m    *client.MockClient
		plg  models.Plugin
	)

	BeforeEach(func() {
		ctrl = gomock.NewController(GinkgoT())
		m = client.NewMockClient(ctrl)
		plg = &Plugin{client: m}
	})

	AfterEach(func() {
		ctrl.Finish()
	})

	Context("fetching next accounts", func() {
		var (
			sampleAccounts []client.Account
			now            time.Time
		)

		BeforeEach(func() {
			now = time.Now().UTC()

			sampleAccounts = make([]client.Account, 0)
			for i := 0; i < 50; i++ {
				sampleAccounts = append(sampleAccounts, client.Account{
					AccountID:          fmt.Sprint(i),
					AccountDescription: fmt.Sprintf("Account %d", i),
					Currency:           "EUR",
					OpeningDate:        now.Add(-time.Duration(50-i) * time.Minute).UTC().Format("2006-01-02T15:04:05.999999999+00:00"),
				})
			}
		})

		It("should return an error - get accounts error", func(ctx SpecContext) {
			req := models.FetchNextAccountsRequest{
				State:    []byte(`{}`),
				PageSize: 60,
			}

			m.EXPECT().GetAccounts(gomock.Any(), 1, 60, time.Time{}).Return(
				[]client.Account{},
				errors.New("test error"),
			)

			resp, err := plg.FetchNextAccounts(ctx, req)
			Expect(err).ToNot(BeNil())
			Expect(err).To(MatchError("test error"))
			Expect(resp).To(Equal(models.FetchNextAccountsResponse{}))
		})

		It("should fetch next accounts - no state no results", func(ctx SpecContext) {
			req := models.FetchNextAccountsRequest{
				State:    []byte(`{}`),
				PageSize: 60,
			}

			m.EXPECT().GetAccounts(gomock.Any(), 1, 60, time.Time{}).Return(
				[]client.Account{},
				nil,
			)

			resp, err := plg.FetchNextAccounts(ctx, req)
			Expect(err).To(BeNil())
			Expect(resp.Accounts).To(HaveLen(0))
			Expect(resp.HasMore).To(BeFalse())
			Expect(resp.NewState).ToNot(BeNil())

			var state accountsState
			err = json.Unmarshal(resp.NewState, &state)
			Expect(err).To(BeNil())
			// We fetched everything, state should be resetted
			Expect(state.LastAccountID).To(BeEmpty())
			Expect(state.FromOpeningDate.IsZero()).To(BeTrue())
		})

		It("should fetch next accounts - no state pageSize > total accounts", func(ctx SpecContext) {
			req := models.FetchNextAccountsRequest{
				State:    []byte(`{}`),
				PageSize: 60,
			}

			m.EXPECT().GetAccounts(gomock.Any(), 1, 60, time.Time{}).Return(
				sampleAccounts,
				nil,
			)

			resp, err := plg.FetchNextAccounts(ctx, req)
			Expect(err).To(BeNil())
			Expect(resp.Accounts).To(HaveLen(50))
			Expect(resp.HasMore).To(BeFalse())
			Expect(resp.NewState).ToNot(BeNil())

			var state accountsState
			err = json.Unmarshal(resp.NewState, &state)
			Expect(err).To(BeNil())
			// We fetched everything, state should be resetted
			Expect(state.LastAccountID).To(Equal("49"))
			Expect(state.FromOpeningDate).To(Equal(now.Add(-time.Duration(1) * time.Minute).UTC()))
		})

		It("should fetch next accounts - no state pageSize < total accounts", func(ctx SpecContext) {
			req := models.FetchNextAccountsRequest{
				State:    []byte(`{}`),
				PageSize: 40,
			}

			m.EXPECT().GetAccounts(gomock.Any(), 1, 40, time.Time{}).Return(
				sampleAccounts[:40],
				nil,
			)

			resp, err := plg.FetchNextAccounts(ctx, req)
			Expect(err).To(BeNil())
			Expect(resp.Accounts).To(HaveLen(40))
			Expect(resp.HasMore).To(BeTrue())
			Expect(resp.NewState).ToNot(BeNil())

			var state accountsState
			err = json.Unmarshal(resp.NewState, &state)
			Expect(err).To(BeNil())
			Expect(state.LastAccountID).To(Equal("39"))
			Expect(state.FromOpeningDate).To(Equal(now.Add(-time.Duration(11) * time.Minute).UTC()))
		})

		It("should fetch next accounts - with state pageSize < total accounts", func(ctx SpecContext) {
			req := models.FetchNextAccountsRequest{
				State:    []byte(fmt.Sprintf(`{"lastAccountID": "%d", "fromOpeningDate": "%s"}`, 38, now.Add(-time.Duration(12)*time.Minute).UTC().Format(time.RFC3339Nano))),
				PageSize: 40,
			}

			m.EXPECT().GetAccounts(gomock.Any(), 1, 40, now.Add(-time.Duration(12)*time.Minute).UTC()).Return(
				sampleAccounts[:40],
				nil,
			)

			m.EXPECT().GetAccounts(gomock.Any(), 2, 40, now.Add(-time.Duration(12)*time.Minute).UTC()).Return(
				sampleAccounts[40:],
				nil,
			)

			resp, err := plg.FetchNextAccounts(ctx, req)
			Expect(err).To(BeNil())
			Expect(resp.Accounts).To(HaveLen(11))
			Expect(resp.HasMore).To(BeFalse())
			Expect(resp.NewState).ToNot(BeNil())

			var state accountsState
			err = json.Unmarshal(resp.NewState, &state)
			Expect(err).To(BeNil())
			// We fetched everything, state should be resetted
			Expect(state.LastAccountID).To(Equal("49"))
			Expect(state.FromOpeningDate).To(Equal(now.Add(-time.Duration(1) * time.Minute).UTC()))
		})
	})
})