implement email queue

core/nkode_api_test.go

@@ -25,14 +25,20 @@ func TestNKodeAPI(t *testing.T) {
 }
 
 func testNKodeAPI(t *testing.T, db DbAccessor) {
+	bufferSize := 100
+	emailsPerSec := 14
+	testClient := TestEmailClient{}
+	queue := NewEmailQueue(bufferSize, emailsPerSec, &testClient)
+	queue.Start()
+	defer queue.Stop()
 	attrsPerKey := 5
 	numbOfKeys := 4
 	for idx := 0; idx < 1; idx++ {
-		userEmail := Email("test_username" + util.GenerateRandomString(12) + "@example.com")
+		userEmail := UserEmail("test_username" + util.GenerateRandomString(12) + "@example.com")
 		passcodeLen := 4
 		nkodePolicy := NewDefaultNKodePolicy()
 		keypadSize := KeypadDimension{AttrsPerKey: attrsPerKey, NumbOfKeys: numbOfKeys}
-		nkodeApi := NewNKodeAPI(db)
+		nkodeApi := NewNKodeAPI(db, queue)
 		customerId, err := nkodeApi.CreateNewCustomer(nkodePolicy, nil)
 		assert.NoError(t, err)
 		signupResponse, err := nkodeApi.GenerateSignupResetInterface(userEmail, *customerId, keypadSize, false)