element-x-ada/docs/build-logs/e2e-test-result.md

Element X ADA End-to-End Test Report

Date: 2026-03-28 Commit: 9613a1e6fc (on phase1-dev branch) Tester: Kayos (subagent)

Test Environment

• Emulator: Android emulator (android-emulator container on Lucy)
• ADB: Connected at emulator-5554
• Network: Cardano Preprod Testnet
• Test Account: @testbot-elementx:sulkta.com at mas.sulkta.com
• APK: app-gplay-x86_64-debug.apk

Test Results

✅ Sign In

• OIDC login to Matrix Authentication Service works
• App launches and connects to homeserver
• Chat list displays correctly

✅ Wallet Creation (Previously Tested)

• Wallet was already created in a prior session
• Wallet Address: addr_test1qz57gfnua79ajquraf9v86h4kc8zugeszpmnujd7ktqqkk7nupfaelycr785nh2jnh87jv6ehcfnnve78tfrmxxrm5gseddjqc
• Mnemonic stored without biometric auth requirement (fix from commit 9e9192dd3b)

✅ Payment Flow Entry

• /pay slash command recognized and displayed in suggestions
• Pressing send triggers the payment flow
• Payment flow UI opens correctly with:
  • Testnet transaction warning
  • Available balance display (shows "0 ADA")
  • Amount input field
  • Recipient input field
  • Continue button

✅ Koios API Integration

• Fixed: Trailing slash added to Koios base URLs (required by Retrofit)
• Fixed: Empty response handling for unfunded addresses
  • API returns [] for addresses with no history
  • Previously failed with "Response Body is Empty"
  • Now correctly returns 0 balance / empty UTXO list
• Balance queries work correctly
• Log shows: "Address has no history, returning 0 balance"

⚠️ Funding (Blocked)

• Cardano preprod faucet requires captcha or API key
• Unable to fund the test wallet programmatically
• Manual action needed: Fund wallet via https://docs.cardano.org/cardano-testnets/tools/faucet/

❓ Send ADA (Not Tested)

• Cannot test without funds in wallet
• Transaction building and signing flow untested
• Payment card in Matrix timeline untested

❓ Wallet Icon in Top Bar (Known Issue)

• isDM=false for the test room (Cobbert)
• Wallet icon not showing in DM room top bar
• Workaround: Use /pay slash command instead

Bugs Fixed This Session

1. Koios Base URL Missing Trailing Slash

File: CardanoNetworkConfig.kt

// Before:
const val KOIOS_BASE_URL = "https://preprod.koios.rest/api/v1"
// After:
const val KOIOS_BASE_URL = "https://preprod.koios.rest/api/v1/"

This caused IllegalArgumentException: baseUrl must end in /

2. Empty Response Handling in KoiosCardanoClient

File: KoiosCardanoClient.kt

For unfunded addresses, Koios returns [] which the Java client interprets as empty/error. Added handling to return 0 balance instead of failing:

result.response?.contains("Empty") == true -> {
    Result.success(0L)  // 0 balance for unfunded address
}

Known Issues

1. Wallet icon not appearing in DM rooms - isDM flag not being set correctly for some rooms
2. Testnet faucet requires manual funding - No programmatic access without API key
3. Transaction flow untested - Blocked by lack of funds

Recommendations

1. For complete testing: Manually fund the wallet using the web faucet with captcha
2. For isDM fix: Investigate why the "Cobbert" room has isDM=false
3. For automated testing: Consider using a pre-funded testnet wallet or obtaining a faucet API key

Commits

• 9e9192dd3b - Remove biometric requirement for mnemonic storage
• 9613a1e6fc - Fix Koios API integration for unfunded addresses

What Works

• ✅ App launch and login
• ✅ Matrix sync and room list
• ✅ Wallet creation (mnemonic generation, address derivation)
• ✅ Payment flow entry via /pay command
• ✅ Balance display (showing 0 ADA)
• ✅ Koios API calls to preprod testnet
• ✅ Error handling for unfunded addresses

What Needs Testing

• ❓ Transaction building with actual UTXOs
• ❓ Transaction signing
• ❓ Transaction submission to Cardano network
• ❓ Payment card rendering in Matrix timeline
• ❓ Balance updates after transaction