NFC test SDK comparison

A comparison of the SDKs exposed to manage NFC tags on Android IOs and Python module PyNFC.

• NFC test SDK comparison
• Overview
• Comparison
  • IOS (objective C)
  • Android (Java)
  • pynfc (python)
• Observe

Overview

A comparison which analyses NFC use cases on mobile, as background to the test case design/implementation in the commissioning workflow :NFC-Bluetooth-pairing application.

• Analyse the Apple API
• Analyse the Android API
• Python test pynfc modules

Comparison

From the lowest level, each programmer interface has a definition for Errors, Link, NDEF, Tags and Sessions. Note: Comparisons are high level and use past experience and old docs.

IOS (objective C)

1. Errors: are a struct with 3 members:
   int:value,
   struct:string:usererror
   struct:string:localized
2. isodep:not supported
3. NDEF support parameters withpayload
   and Typename,
4. Tags:Are an Object representing tag
5. Sessions are managed using Delegate &callbacks

Android (Java)

1. Errors:thrown as IOException with cause and message, there are no returned error datas
2. isodep:get/set communication parameters and RAW.
3. NDEF: Includes SNEP
4. Tags :(3)A,(3)B,(4)F,V and isoDep layer
5. Sessions Intents and Actions, runtime registration of PendingIntent() allows hooking using tag filters

pynfc (python)

1. Errors :raises Exceptions nfc.clf.Error and others per class
2. isodep:get/set communication parameters and RAW.
3. NDEF: full implementation and types. Includes SNEP
4. Tags :1,2,(3)A,(3)B,(4)F isoDep layer
5. Sessions :using delegate class callbacks

Observe

Negative test cases would be better designed around the user cases, than around the implementations, base error conditions at the API layer look more like

• UnsupportedTarget
• Communication
• Protocol
• (w) Transmission
• (w) Timeout
• (w) BrokenLink
• ValueError

Valuable test data cases shall be for valid and boundary cases for the smartposter NDEF record:

• uri – URI string ASCII only
• title – Smart poster title(s), (additional internationalizations with IANA codes not tested)
• icons – omitted
• action – The recommended action , a string