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

package modulr

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

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

var _ = Describe("Modulr 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{
					ID:          fmt.Sprintf("%d", i),
					Name:        fmt.Sprintf("Account %d", i),
					Currency:    "USD",
					CreatedDate: now.Add(-time.Duration(50-i) * time.Minute).UTC().Format("2006-01-02T15:04:05.999-0700"),
				})
			}
		})

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

			m.EXPECT().GetAccounts(gomock.Any(), 0, 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(), 0, 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.LastCreatedAt.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(), 0, 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
			createdTime, _ := time.Parse("2006-01-02T15:04:05.999-0700", sampleAccounts[49].CreatedDate)
			Expect(state.LastCreatedAt.UTC()).To(Equal(createdTime.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(), 0, 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())
			createdTime, _ := time.Parse("2006-01-02T15:04:05.999-0700", sampleAccounts[39].CreatedDate)
			Expect(state.LastCreatedAt.UTC()).To(Equal(createdTime.UTC()))
		})

		It("should fetch next accounts - with state pageSize < total accounts", func(ctx SpecContext) {
			lastCreatedAt, _ := time.Parse("2006-01-02T15:04:05.999-0700", sampleAccounts[38].CreatedDate)
			req := models.FetchNextAccountsRequest{
				State:    []byte(fmt.Sprintf(`{"lastCreatedAt": "%s"}`, lastCreatedAt.UTC().Format(time.RFC3339Nano))),
				PageSize: 40,
			}

			m.EXPECT().GetAccounts(gomock.Any(), 0, 40, lastCreatedAt.UTC()).Return(
				sampleAccounts[:40],
				nil,
			)

			m.EXPECT().GetAccounts(gomock.Any(), 1, 40, lastCreatedAt.UTC()).Return(
				sampleAccounts[41:],
				nil,
			)

			resp, err := plg.FetchNextAccounts(ctx, req)
			Expect(err).To(BeNil())
			Expect(resp.Accounts).To(HaveLen(10))
			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
			createdTime, _ := time.Parse("2006-01-02T15:04:05.999-0700", sampleAccounts[49].CreatedDate)
			Expect(state.LastCreatedAt.UTC()).To(Equal(createdTime.UTC()))
		})
	})
})