return an event channel for the test engine

This reverts commit 188cb573dd.

cmd/africastalking/main.go

@@ -17,6 +17,7 @@ import (
 	"git.defalsify.org/vise.git/resource"
 
 	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/handlers/server"
 	httpserver "git.grassecon.net/urdt/ussd/internal/http"
 	"git.grassecon.net/urdt/ussd/internal/storage"
 )
@@ -127,7 +128,8 @@ func main() {
 		os.Exit(1)
 	}
 
-	hl, err := lhs.GetHandler()
+	accountService := server.AccountService{}
+	hl, err := lhs.GetHandler(&accountService)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)

cmd/async/main.go

@@ -14,6 +14,7 @@ import (
 	"git.defalsify.org/vise.git/resource"
 
 	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/handlers/server"
 	"git.grassecon.net/urdt/ussd/internal/storage"
 )
 
@@ -95,7 +96,9 @@ func main() {
 	lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs)
 	lhs.SetDataStore(&userdataStore)
 
-	hl, err := lhs.GetHandler()
+	accountService := server.AccountService{}
+
+	hl, err := lhs.GetHandler(&accountService)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)

cmd/http/main.go

@@ -16,6 +16,7 @@ import (
 	"git.defalsify.org/vise.git/resource"
 
 	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/handlers/server"
 	httpserver "git.grassecon.net/urdt/ussd/internal/http"
 	"git.grassecon.net/urdt/ussd/internal/storage"
 )
@@ -88,7 +89,8 @@ func main() {
 		os.Exit(1)
 	}
 
-	hl, err := lhs.GetHandler()
+	accountService := server.AccountService{}
+	hl, err := lhs.GetHandler(&accountService)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)

cmd/main.go

@@ -11,6 +11,7 @@ import (
 	"git.defalsify.org/vise.git/logging"
 	"git.defalsify.org/vise.git/resource"
 	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/handlers/server"
 	"git.grassecon.net/urdt/ussd/internal/storage"
 )
 
@@ -84,8 +85,8 @@ func main() {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
-
-	hl, err := lhs.GetHandler()
+	accountService := server.AccountService{}
+	hl, err := lhs.GetHandler(&accountService)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)

driver/testdriver.go

@@ -0,0 +1,111 @@
+package driver
+
+import (
+	"encoding/json"
+	"log"
+	"os"
+	"regexp"
+)
+
+type Step struct {
+	Input           string `json:"input"`
+	ExpectedContent string `json:"expectedContent"`
+}
+
+func (s *Step) MatchesExpectedContent(content []byte) (bool, error) {
+	pattern := `.*\?.*|.*`
+	re, err := regexp.Compile(pattern)
+	if err != nil {
+		return false, err
+	}
+	// Check if the content matches the regex pattern
+	if re.Match(content) {
+		return true, nil
+	}
+	return false, nil
+}
+
+// Group represents a group of steps
+type Group struct {
+	Name  string `json:"name"`
+	Steps []Step `json:"steps"`
+}
+
+type TestCase struct {
+	Name            string
+	Input           string
+	ExpectedContent string
+}
+
+func (s *TestCase) MatchesExpectedContent(content []byte) (bool, error) {
+	re, err := regexp.Compile(s.ExpectedContent)
+	if err != nil {
+		return false, err
+	}
+	// Check if the content matches the regex pattern
+	if re.Match(content) {
+		return true, nil
+	}
+	return false, nil
+}
+
+// DataGroup represents the overall structure of the JSON.
+type DataGroup struct {
+	Groups []Group `json:"groups"`
+}
+
+type Session struct {
+	Name   string  `json:"name"`
+	Groups []Group `json:"groups"`
+}
+
+func ReadData() []Session {
+	data, err := os.ReadFile("test_setup.json")
+	if err != nil {
+		log.Fatalf("Failed to read file: %v", err)
+	}
+	// Unmarshal JSON data
+	var sessions []Session
+	err = json.Unmarshal(data, &sessions)
+	if err != nil {
+		log.Fatalf("Failed to unmarshal JSON: %v", err)
+	}
+
+	return sessions
+}
+
+func FilterGroupsByName(groups []Group, name string) []Group {
+	var filteredGroups []Group
+	for _, group := range groups {
+		if group.Name == name {
+			filteredGroups = append(filteredGroups, group)
+		}
+	}
+	return filteredGroups
+}
+
+func LoadTestGroups(filePath string) (DataGroup, error) {
+	var sessionsData DataGroup
+	data, err := os.ReadFile(filePath)
+	if err != nil {
+		return sessionsData, err
+	}
+	err = json.Unmarshal(data, &sessionsData)
+	return sessionsData, err
+}
+
+func CreateTestCases(group DataGroup) []TestCase {
+	var tests []TestCase
+	for _, group := range group.Groups {
+		for _, step := range group.Steps {
+			// Create a test case for each group
+			tests = append(tests, TestCase{
+				Name:            group.Name,
+				Input:           step.Input,
+				ExpectedContent: step.ExpectedContent,
+			})
+		}
+	}
+
+	return tests
+}

go.mod

@@ -15,6 +15,7 @@ require (
 	github.com/barbashov/iso639-3 v0.0.0-20211020172741-1f4ffb2d8d1c // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fxamacker/cbor/v2 v2.4.0 // indirect
+	github.com/gofrs/uuid v4.4.0+incompatible
 	github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4 // indirect
 	github.com/hexops/gotextdiff v1.0.3 // indirect
 	github.com/mattn/kinako v0.0.0-20170717041458-332c0a7e205a // indirect

go.sum

@@ -12,6 +12,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fxamacker/cbor/v2 v2.4.0 h1:ri0ArlOR+5XunOP8CRUowT0pSJOwhW098ZCUyskZD88=
 github.com/fxamacker/cbor/v2 v2.4.0/go.mod h1:TA1xS00nchWmaBnEIxPSE5oHLuJBAVvqrtAnWBwBCVo=
+github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1YrTJupqA=
+github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4 h1:U4kkNYryi/qfbBF8gh7Vsbuz+cVmhf5kt6pE9bYYyLo=
 github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4/go.mod h1:zpZDgZFzeq9s0MIeB1P50NIEWDFFHSFBohI/NbaTD/Y=
 github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=

internal/handlers/handlerservice.go

@@ -6,6 +6,7 @@ import (
 	"git.defalsify.org/vise.git/engine"
 	"git.defalsify.org/vise.git/persist"
 	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/urdt/ussd/internal/handlers/server"
 	"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
 )
 
@@ -52,8 +53,8 @@ func (ls *LocalHandlerService) SetDataStore(db *db.Db) {
 	ls.UserdataStore = db
 }
 
-func (ls *LocalHandlerService) GetHandler() (*ussd.Handlers, error) {
-	ussdHandlers, err := ussd.NewHandlers(ls.Parser, *ls.UserdataStore)
+func (ls *LocalHandlerService) GetHandler(accountService server.AccountServiceInterface) (*ussd.Handlers, error) {
+	ussdHandlers, err := ussd.NewHandlers(ls.Parser, *ls.UserdataStore, accountService)
 	if err != nil {
 		return nil, err
 	}

internal/handlers/server/accountservice.go

@@ -18,7 +18,8 @@ type AccountServiceInterface interface {
 type AccountService struct {
 }
 
-
+type MockAccountService struct {
+}
 
 // CheckAccountStatus retrieves the status of an account transaction based on the provided tracking ID.
 //
@@ -27,12 +28,10 @@ type AccountService struct {
 //     CreateAccount or a similar function that returns an AccountResponse. The `trackingId` field in the
 //     AccountResponse struct can be used here to check the account status during a transaction.
 //
-//
 // Returns:
 //   - string: The status of the transaction as a string. If there is an error during the request or processing, this will be an empty string.
 //   - error: An error if any occurred during the HTTP request, reading the response, or unmarshalling the JSON data.
 //     If no error occurs, this will be nil.
-//
 func (as *AccountService) CheckAccountStatus(trackingId string) (string, error) {
 	resp, err := http.Get(config.TrackStatusURL + trackingId)
 	if err != nil {
@@ -56,7 +55,6 @@ func (as *AccountService) CheckAccountStatus(trackingId string) (string, error)
 	return status, nil
 }
 
-
 // CheckBalance retrieves the balance for a given public key from the custodial balance API endpoint.
 // Parameters:
 //   - publicKey: The public key associated with the account whose balance needs to be checked.
@@ -83,8 +81,7 @@ func (as *AccountService) CheckBalance(publicKey string) (string, error) {
 	return balance, nil
 }
 
-
-//CreateAccount creates a new account in the custodial system.
+// CreateAccount creates a new account in the custodial system.
 // Returns:
 //   - *models.AccountResponse: A pointer to an AccountResponse struct containing the details of the created account.
 //     If there is an error during the request or processing, this will be nil.
@@ -110,3 +107,38 @@ func (as *AccountService) CreateAccount() (*models.AccountResponse, error) {
 
 	return &accountResp, nil
 }
+
+func (mas *MockAccountService) CreateAccount() (*models.AccountResponse, error) {
+	return &models.AccountResponse{
+		Ok: true,
+		Result: struct {
+			CustodialId json.Number `json:"custodialId"`
+			PublicKey   string      `json:"publicKey"`
+			TrackingId  string      `json:"trackingId"`
+		}{
+			CustodialId: json.Number("182"),
+			PublicKey:   "0x48ADca309b5085852207FAaf2816eD72B52F527C",
+			TrackingId:  "28ebe84d-b925-472c-87ae-bbdfa1fb97be",
+		},
+	}, nil
+}
+
+func (mas *MockAccountService) CheckBalance(publicKey string) (string, error) {
+
+	balanceResponse := &models.BalanceResponse{
+		Ok: true,
+		Result: struct {
+			Balance string      `json:"balance"`
+			Nonce   json.Number `json:"nonce"`
+		}{
+			Balance: "0.003 CELO",
+			Nonce:   json.Number("0"),
+		},
+	}
+
+	return balanceResponse.Result.Balance, nil
+}
+
+func (mas *MockAccountService) CheckAccountStatus(trackingId string) (string, error) {
+	return "SUCCESS", nil
+}

internal/handlers/ussd/menuhandler.go

@@ -61,7 +61,7 @@ type Handlers struct {
 	accountService server.AccountServiceInterface
 }
 
-func NewHandlers(appFlags *asm.FlagParser, userdataStore db.Db) (*Handlers, error) {
+func NewHandlers(appFlags *asm.FlagParser, userdataStore db.Db, accountService server.AccountServiceInterface) (*Handlers, error) {
 	if userdataStore == nil {
 		return nil, fmt.Errorf("cannot create handler with nil userdata store")
 	}
@@ -71,7 +71,7 @@ func NewHandlers(appFlags *asm.FlagParser, userdataStore db.Db) (*Handlers, erro
 	h := &Handlers{
 		userdataStore:  userDb,
 		flagManager:    appFlags,
-		accountService: &server.AccountService{},
+		accountService: accountService,
 	}
 	return h, nil
 }
@@ -502,7 +502,7 @@ func (h *Handlers) Authorize(ctx context.Context, sym string, input []byte) (res
 	if err != nil {
 		return res, err
 	}
-	if len(input) == 4 {
+	if len(input) > 1 {
 		if bytes.Equal(input, AccountPin) {
 			if h.st.MatchFlag(flag_account_authorized, false) {
 				res.FlagReset = append(res.FlagReset, flag_incorrect_pin)

internal/handlers/ussd/menuhandler_test.go

@@ -836,7 +836,10 @@ func TestAuthorize(t *testing.T) {
 		{
 			name:           "Test with pin that is not a 4 digit",
 			input:          []byte("1235aqds"),
-			expectedResult: resource.Result{},
+			expectedResult: resource.Result{
+				FlagReset: []uint32{flag_account_authorized},
+				FlagSet:   []uint32{flag_incorrect_pin},
+			},
 		},
 	}
 

internal/storage/gdbm.go

@@ -109,6 +109,7 @@ func(tdb *ThreadGdbmDb) Get(ctx context.Context, key []byte) ([]byte, error) {
 func(tdb *ThreadGdbmDb) Close() error {
 	tdb.reserve()
 	close(dbC[tdb.connStr])
+	delete(dbC, tdb.connStr)
 	err := tdb.db.Close()
 	tdb.db = nil
 	return err

internal/testutil/TestEngine.go

@@ -0,0 +1,119 @@
+package testutil
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path"
+	"time"
+
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/logging"
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/handlers/server"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	testdataloader "github.com/peteole/testdata-loader"
+)
+
+var (
+	baseDir   = testdataloader.GetBasePath()
+	logg      = logging.NewVanilla()
+	scriptDir = path.Join(baseDir, "services", "registration")
+)
+
+func TestEngine(sessionId string) (engine.Engine, func(), chan bool) {
+	ctx := context.Background()
+	ctx = context.WithValue(ctx, "SessionId", sessionId)
+	pfp := path.Join(scriptDir, "pp.csv")
+
+	var eventChannel = make(chan bool)
+
+	cfg := engine.Config{
+		Root:       "root",
+		SessionId:  sessionId,
+		OutputSize: uint32(160),
+		FlagCount:  uint32(16),
+	}
+
+	dbDir := ".test_state"
+	resourceDir := scriptDir
+	menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
+
+	err := menuStorageService.EnsureDbDir()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	rs, err := menuStorageService.GetResource(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	pe, err := menuStorageService.GetPersister(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	userDataStore, err := menuStorageService.GetUserdataDb(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	dbResource, ok := rs.(*resource.DbResource)
+	if !ok {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs)
+	lhs.SetDataStore(&userDataStore)
+	lhs.SetPersister(pe)
+
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	switch AccountService.(type) {
+	case *server.MockAccountService:
+		go func() {
+			eventChannel <- false
+		}()
+	case *server.AccountService:
+		go func() {
+			time.Sleep(5 * time.Second) // Wait for 5 seconds
+			eventChannel <- true
+		}()
+	default:
+		panic("Unknown account service type")
+	}
+
+	hl, err := lhs.GetHandler(AccountService)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	en := lhs.GetEngine()
+	en = en.WithFirst(hl.Init)
+	cleanFn := func() {
+		err := en.Finish()
+		if err != nil {
+			logg.Errorf(err.Error())
+		}
+
+		err = menuStorageService.Close()
+		if err != nil {
+			logg.Errorf(err.Error())
+		}
+		logg.Infof("testengine storage closed")
+	}
+
+	//en = en.WithDebug(nil)
+	return en, cleanFn, eventChannel
+}

internal/testutil/tag_offline.go

@@ -0,0 +1,13 @@
+// +build !online
+
+package testutil
+
+import (
+	"git.grassecon.net/urdt/ussd/internal/handlers/server"
+)
+
+var AccountService server.AccountServiceInterface
+
+func init() {
+	AccountService = &server.MockAccountService{}
+}

internal/testutil/tag_online.go

@@ -0,0 +1,12 @@
+//go:build online
+// +build online
+
+package testutil
+
+import "git.grassecon.net/urdt/ussd/internal/handlers/server"
+
+var AccountService server.AccountServiceInterface
+
+func init() {
+	AccountService = &server.AccountService{}
+}

services/registration/confirm_pin_change.vis

@@ -2,6 +2,4 @@ CATCH invalid_pin flag_valid_pin 0
 MOUT back 0
 HALT
 INCMP _ 0
-INCMP * pin_reset_success
-
-
+INCMP pin_reset_success * 

services/registration/edit_profile.vis

@@ -1,4 +1,5 @@
 LOAD reset_account_authorized 16
+RELOAD reset_account_authorized
 LOAD reset_allow_update 0
 RELOAD reset_allow_update
 MOUT edit_name 1

services/registration/enter_name.vis

@@ -7,6 +7,3 @@ HALT
 RELOAD save_firstname
 INCMP _ 0
 INCMP pin_entry *
-
-
-

services/registration/invalid_pin_swa

@@ -1 +1,2 @@
-PIN mpya na udhibitisho wa pin mpya hazilingani.Tafadhali jaribu tena.Kwa usaidizi piga simu +254757628885.
+PIN mpya na udhibitisho wa PIN mpya hazilingani. Tafadhali jaribu tena. 
+Kwa usaidizi piga simu +254757628885.

services/registration/language_changed.vis

@@ -1,3 +1,4 @@
+RELOAD reset_account_authorized
 MOUT back 0
 MOUT quit 9
 HALT

services/registration/my_vouchers

@@ -0,0 +1 @@
+My vouchers

services/registration/my_vouchers.vis

@@ -0,0 +1,6 @@
+MOUT select_voucher 1
+MOUT voucher_details 2
+MOUT back 0
+HALT
+INCMP _ 0
+INCMP select_voucher 1

services/registration/new_pin

@@ -1 +1 @@
-Enter a new four number pin
+Enter a new four number PIN:

services/registration/new_pin.vis

@@ -1,13 +1,10 @@
-LOAD authorize_account 12
-RELOAD authorize_account
-CATCH incorrect_pin flag_incorrect_pin 1
-CATCH old_pin flag_allow_update 0
+CATCH _ flag_allow_update 0
 MOUT back 0
 HALT
 INCMP _ 0
 LOAD save_temporary_pin 6
-LOAD verify_new_pin 0
 RELOAD save_temporary_pin
+LOAD verify_new_pin 8
 RELOAD verify_new_pin
-INCMP * confirm_pin_change
-
+CATCH incorrect_pin flag_incorrect_pin 1
+INCMP confirm_pin_change * 

services/registration/new_pin_swa

@@ -1,2 +1 @@
 Weka PIN mpya ya nne nambari:
-

services/registration/old_pin.vis

@@ -1,7 +1,9 @@
 LOAD reset_allow_update 0
+RELOAD reset_allow_update
 MOUT back 0
 HALT
-RELOAD reset_allow_update
+LOAD authorize_account 12
+RELOAD authorize_account
+CATCH incorrect_pin flag_incorrect_pin 1
 INCMP _ 0
 INCMP new_pin *
-

services/registration/pin_management.vis

@@ -4,5 +4,4 @@ MOUT guard_pin 3
 MOUT back 0
 HALT
 INCMP _ 0
-INCMP old_pin  1
-
+INCMP old_pin 1

services/registration/pin_reset_mismatch.vis

@@ -3,4 +3,3 @@ MOUT quit 9
 HALT
 INCMP confirm_pin_change 1
 INCMP quit 9
-

services/registration/pin_reset_success.vis

@@ -1,10 +1,8 @@
 LOAD confirm_pin_change 0
 RELOAD confirm_pin_change
-CATCH pin_reset_mismatch  flag_pin_mismatch 1
+CATCH pin_reset_mismatch flag_pin_mismatch 1
 MOUT back 0
 MOUT quit 9
 HALT
 INCMP main 0
 INCMP quit 9
-
-

services/registration/select_voucher_menu

@@ -0,0 +1 @@
+Select voucher

services/registration/voucher_details_menu

@@ -0,0 +1 @@
+Voucher details

test_engine/group_test.json

@@ -0,0 +1,368 @@
+{
+    "groups": [
+        {
+            "name": "my_account_change_pin",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "5",
+                    "expectedContent": "PIN Management\n1:Change PIN\n2:Reset other's PIN\n3:Guard my PIN\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Enter your old PIN\n0:Back"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Enter a new four number PIN:\n0:Back"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Confirm your new PIN:\n0:Back"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Your PIN change request has been successful\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_language_change",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "2",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1235",
+                    "expectedContent": "Incorrect pin\n1:retry\n9:Quit"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Select language:\n0:english\n1:kiswahili"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Your language change request was successful.\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_firstname",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Enter your first names:\n0:Back"
+                },
+                {
+                    "input": "foo",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_familyname",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "2",
+                    "expectedContent": "Enter family name:\n0:Back"
+                },
+                {
+                    "input": "bar",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+               
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_gender",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "Select gender: \n1:Male\n2:Female\n3:Unspecified\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_yob",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "4",
+                    "expectedContent": "Enter your year of birth\n0:Back"
+                },
+                {
+                    "input": "1945",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_location",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "5",
+                    "expectedContent": "Enter your location:\n0:Back"
+                },
+                {
+                    "input": "Kilifi",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_offerings",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "6",
+                    "expectedContent": "Enter the services or goods you offer: \n0:Back"
+                },
+                {
+                    "input": "Bananas",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_view_profile",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "7",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "My profile:\nName: foo bar\nGender: male\nAge: 79\nLocation: Kilifi\nYou provide: Bananas\n\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        }
+    ]
+}
+      
+        
+       
+        
+    
+

test_engine/menu_traversal_test.go

@@ -0,0 +1,388 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"log"
+	"math/rand"
+	"os"
+	"regexp"
+	"testing"
+
+	"git.grassecon.net/urdt/ussd/driver"
+	"git.grassecon.net/urdt/ussd/internal/testutil"
+	"github.com/gofrs/uuid"
+)
+
+var (
+	testData      = driver.ReadData()
+	testStore     = ".test_state"
+	groupTestFile = "group_test.json"
+	sessionID     string
+	src           = rand.NewSource(42)
+	g             = rand.New(src)
+)
+
+func GenerateSessionId() string {
+	uu := uuid.NewGenWithOptions(uuid.WithRandomReader(g))
+	v, err := uu.NewV4()
+	if err != nil {
+		panic(err)
+	}
+	return v.String()
+}
+
+// Extract the public key from the engine response
+func extractPublicKey(response []byte) string {
+	// Regex pattern to match the public key starting with 0x and 40 characters
+	re := regexp.MustCompile(`0x[a-fA-F0-9]{40}`)
+	match := re.Find(response)
+	if match != nil {
+		return string(match)
+	}
+	return ""
+}
+
+func TestMain(m *testing.M) {
+	sessionID = GenerateSessionId()
+	defer func() {
+		if err := os.RemoveAll(testStore); err != nil {
+			log.Fatalf("Failed to delete state store %s: %v", testStore, err)
+		}
+	}()
+	m.Run()
+}
+
+func TestAccountCreationSuccessful(t *testing.T) {
+	en, fn, eventChannel := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "account_creation_successful")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				_, err = en.Flush(ctx, w)
+				if err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+				b := w.Bytes()
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+	<-eventChannel
+
+}
+
+func TestAccountRegistrationRejectTerms(t *testing.T) {
+	// Generate a new UUID for this edge case test
+	uu := uuid.NewGenWithOptions(uuid.WithRandomReader(g))
+	v, err := uu.NewV4()
+	if err != nil {
+		t.Fail()
+	}
+	edgeCaseSessionID := v.String()
+	en, fn, _ := testutil.TestEngine(edgeCaseSessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "account_creation_reject_terms")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+
+				b := w.Bytes()
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestSendWithInvalidInputs(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "send_with_invalid_inputs")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+
+				b := w.Bytes()
+
+				// Extract the dynamic public key from the output
+				publicKey := extractPublicKey(b)
+
+				// Replace placeholder {public_key} with the actual dynamic public key
+				expectedContent := bytes.Replace([]byte(step.ExpectedContent), []byte("{public_key}"), []byte(publicKey), -1)
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", expectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMyAccount_Check_My_Balance(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "menu_my_account_check_my_balance")
+		for _, group := range groups {
+			for index, step := range group.Steps {
+				t.Logf("step %v with input %v", index, step.Input)
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Errorf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Errorf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+				b := w.Bytes()
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMainMenuHelp(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "main_menu_help")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+
+				b := w.Bytes()
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMainMenuQuit(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "main_menu_quit")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+
+				b := w.Bytes()
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMyAccount_Check_Community_Balance(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "menu_my_account_check_community_balance")
+		for _, group := range groups {
+			for index, step := range group.Steps {
+				t.Logf("step %v with input %v", index, step.Input)
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Errorf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Errorf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+				b := w.Bytes()
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMyAccount_MyAddress(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "menu_my_account_my_address")
+		for _, group := range groups {
+			for index, step := range group.Steps {
+				t.Logf("step %v with input %v", index, step.Input)
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Errorf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Errorf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+				b := w.Bytes()
+
+				publicKey := extractPublicKey(b)
+				expectedContent := bytes.Replace([]byte(step.ExpectedContent), []byte("{public_key}"), []byte(publicKey), -1)
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", expectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestGroups(t *testing.T) {
+	groups, err := driver.LoadTestGroups(groupTestFile)
+	if err != nil {
+		log.Fatalf("Failed to load test groups: %v", err)
+	}
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	// Create test cases from loaded groups
+	tests := driver.CreateTestCases(groups)
+	for _, tt := range tests {
+		t.Run(tt.Name, func(t *testing.T) {
+			cont, err := en.Exec(ctx, []byte(tt.Input))
+			if err != nil {
+				t.Errorf("Test case '%s' failed at input '%s': %v", tt.Name, tt.Input, err)
+				return
+			}
+			if !cont {
+				return
+			}
+			w := bytes.NewBuffer(nil)
+			if _, err := en.Flush(ctx, w); err != nil {
+				t.Errorf("Test case '%s' failed during Flush: %v", tt.Name, err)
+			}
+			b := w.Bytes()
+			match, err := tt.MatchesExpectedContent(b)
+			if err != nil {
+				t.Fatalf("Error compiling regex for step '%s': %v", tt.Input, err)
+			}
+			if !match {
+				t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", tt.ExpectedContent, b)
+			}
+
+		})
+	}
+}

test_engine/test_setup.json

@@ -0,0 +1,219 @@
+[
+    {
+        "name": "session one",
+        "groups": [
+            {
+                "name": "account_creation_successful",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Welcome to Sarafu Network\nPlease select a language\n0:english\n1:kiswahili"
+                    },
+                    {
+                        "input": "0",
+                        "expectedContent": "Do you agree to terms and conditions?\n0:yes\n1:no"
+                    },
+                    {
+                        "input": "0",
+                        "expectedContent": "Please enter a new four number PIN for your account:\n0:Exit"
+                    },
+                    {
+                        "input": "1234",
+                        "expectedContent": "Enter your four number PIN again:"
+                    },
+                    {
+                        "input": "1111",
+                        "expectedContent": "The PIN is not a match. Try again\n1:retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Enter your four number PIN again:"
+                    },
+                    {
+                        "input": "1234",
+                        "expectedContent": "Your account is being created...Thank you for using Sarafu. Goodbye!"
+                    }
+                ]
+            },
+            {
+                "name": "account_creation_reject_terms",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Welcome to Sarafu Network\nPlease select a language\n0:english\n1:kiswahili"
+                    },
+                    {
+                        "input": "0",
+                        "expectedContent": "Do you agree to terms and conditions?\n0:yes\n1:no"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Thank you for using Sarafu. Goodbye!"
+                    }
+                ]
+            },
+            {
+                "name": "send_with_invalid_inputs",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Enter recipient's phone number:\n0:Back"
+                    },
+                    {
+                        "input": "000",
+                        "expectedContent": "000 is not registered or invalid, please try again:\n1:retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Enter recipient's phone number:\n0:Back"
+                    },
+                    {
+                        "input": "065656",
+                        "expectedContent": "Maximum amount: 0.003 CELO\nEnter amount:\n0:Back"
+                    },
+                    {
+                        "input": "0.1",
+                        "expectedContent": "Amount 0.1 is invalid, please try again:\n1:retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Maximum amount: 0.003 CELO\nEnter amount:\n0:Back"
+                    },
+                    {
+                        "input": "0.001",
+                        "expectedContent": "065656 will receive 0.001 from {public_key}\nPlease enter your PIN to confirm:\n0:Back\n9:Quit"
+                    },
+                    {
+                        "input": "1222",
+                        "expectedContent": "Incorrect pin\n1:retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "065656 will receive 0.001 from {public_key}\nPlease enter your PIN to confirm:\n0:Back\n9:Quit"
+                    },
+                    {
+                        "input": "1234",
+                        "expectedContent": "Your request has been sent. 065656 will receive 0.001 from {public_key}."
+                    }
+                ]
+            },
+            {
+                "name": "main_menu_help",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "4",
+                        "expectedContent": "For more help,please call: 0757628885"
+                    }
+                ]
+            },
+            {
+                "name": "main_menu_quit",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "9",
+                        "expectedContent": "Thank you for using Sarafu. Goodbye!"
+                    }
+                ]
+            },
+            {
+                "name": "menu_my_account_check_my_balance",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "3",
+                        "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                    },
+                    {
+                        "input": "3",
+                        "expectedContent": "Balances:\n1:My balance\n2:Community balance\n0:Back"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Please enter your PIN:"
+                    },
+                    {
+                        "input": "1235",
+                        "expectedContent": "Incorrect pin\n1:retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Please enter your PIN:"
+                    },
+                    {
+                        "input": "1234",
+                        "expectedContent": "Your balance is: 0.00 SRFYour account balance is 0.003 CELO"
+                    }
+                ]
+            },
+            {
+                "name": "menu_my_account_check_community_balance",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "3",
+                        "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                    },
+                    {
+                        "input": "3",
+                        "expectedContent": "Balances:\n1:My balance\n2:Community balance\n0:Back"
+                    },
+                    {
+                        "input": "2",
+                        "expectedContent": "Please enter your PIN:"
+                    },
+                    {
+                        "input": "1235",
+                        "expectedContent": "Incorrect pin\n1:retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Please enter your PIN:"
+                    },
+                    {
+                        "input": "1234",
+                        "expectedContent": "Your balance is: 0.00 SRFYour account balance is 0.003 CELO"
+                    }
+                ]
+            },
+            {
+                "name": "menu_my_account_my_address",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Balance: 0.003 CELO\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "3",
+                        "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                    },
+                    {
+                        "input": "6",
+                        "expectedContent": "Address: {public_key}\n9:Quit"
+                    },
+                    {
+                        "input": "9",
+                        "expectedContent": "Thank you for using Sarafu. Goodbye!"
+                    }
+                ]
+            }
+        ]
+    }
+]