Submit customer identity proofs and show reviewed limits

backend/product/identity/verification_test.go

@@ -0,0 +1,84 @@
+package identity
+
+import (
+	"bytes"
+	"context"
+	"image"
+	"image/png"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+type proofProvider struct {
+	*providerStub
+	subject, key string
+	profile      Profile
+	facts        Facts
+	calls        int
+}
+
+func (p *proofProvider) Verification(_ context.Context, subject string) (Verification, error) {
+	p.subject = subject
+	return Verification{Status: "unverified"}, nil
+}
+func (p *proofProvider) SubmitVerification(_ context.Context, subject, key string, profile Profile, facts Facts, _, _ []byte) (Verification, error) {
+	p.subject = subject
+	p.key = key
+	p.profile = profile
+	p.facts = facts
+	p.calls++
+	return Verification{Status: "pending", SubmissionID: "receipt"}, nil
+}
+func proofImage(t *testing.T, width, height int) []byte {
+	t.Helper()
+	var body bytes.Buffer
+	require.NoError(t, png.Encode(&body, image.NewNRGBA(image.Rect(0, 0, width, height))))
+	return body.Bytes()
+}
+func TestVerificationUsesBoundSubjectAndStableCustomerKey(t *testing.T) {
+	s, _, base, a := fixture()
+	p := &proofProvider{providerStub: base}
+	s.Provider = p
+	ctx := t.Context()
+	result, err := s.Verification(ctx, a)
+	require.NoError(t, err)
+	require.Equal(t, a.Name, result.Profile.FullName)
+	require.Equal(t, "subject-1", p.subject)
+	photo := proofImage(t, 600, 600)
+	profile := Profile{FullName: "Legal Customer Name", DateOfBirth: "1990-04-23", ResidenceCountry: "PL"}
+	_, err = s.SubmitVerification(ctx, a, "0123456789012345", profile, photo, photo)
+	require.NoError(t, err)
+	key := p.key
+	require.Equal(t, a.ID.Hex(), p.facts.CustomerRef)
+	require.Equal(t, a.Login, p.facts.Email)
+	require.Equal(t, profile, p.profile)
+	_, err = s.SubmitVerification(ctx, a, "0123456789012345", profile, photo, photo)
+	require.NoError(t, err)
+	require.Equal(t, key, p.key)
+	require.Equal(t, 1, base.registrations)
+	other := a.Copy()
+	other.ID[0]++
+	_, err = s.SubmitVerification(ctx, other, "0123456789012345", profile, photo, photo)
+	require.NoError(t, err)
+	require.NotEqual(t, key, p.key)
+}
+func TestVerificationValidationBeforeExternalHandoff(t *testing.T) {
+	s, _, base, a := fixture()
+	p := &proofProvider{providerStub: base}
+	s.Provider = p
+	photo := proofImage(t, 600, 600)
+	for _, profile := range []Profile{{}, {FullName: "Name", DateOfBirth: "1990-02-30", ResidenceCountry: "PL"}, {FullName: "Name", DateOfBirth: "2990-04-23", ResidenceCountry: "PL"}, {FullName: "Name", DateOfBirth: "1990-04-23", ResidenceCountry: "USA"}} {
+		_, err := s.SubmitVerification(t.Context(), a, "0123456789012345", profile, photo, photo)
+		require.Error(t, err)
+	}
+	require.Zero(t, p.calls)
+	require.Zero(t, base.registrations)
+	require.Error(t, ValidatePhoto([]byte("not an image")))
+	require.Error(t, ValidatePhoto(proofImage(t, 599, 600)))
+	require.Error(t, ValidatePhoto(photo[:len(photo)-20]))
+	require.Error(t, ValidatePhoto(make([]byte, MaxPhotoBytes+1)))
+	var unavailableService *Service
+	_, err := unavailableService.Verification(t.Context(), a)
+	require.Error(t, err)
+}