Add test coverage and JUnit XML reporting to CI workflow

Co-authored-by: db2002dominic <db2002dominic@gmail.com>

.github/workflows/test.yml

@@ -40,7 +40,7 @@ jobs:
           UPSTREAM_BASE_URL: "http://test"
           UPSTREAM_API_KEY: "test"
         run: |
-          uv run pytest --verbose --tb=short
+          uv run pytest --verbose --tb=short --junit-xml=pytest.xml --cov=routstr --cov-report=term --cov-report=xml
 
       - name: Upload test results
         if: always()

pytest.xml

@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8"?><testsuites name="pytest tests"><testsuite name="pytest" errors="0" failures="0" skipped="0" tests="5" time="1.658" timestamp="2025-08-22T13:59:10.535484+00:00" hostname="cursor"><testcase classname="tests.unit.test_wallet" name="test_get_balance" time="0.004" /><testcase classname="tests.unit.test_wallet" name="test_recieve_token_valid" time="0.002" /><testcase classname="tests.unit.test_wallet" name="test_send_token" time="0.001" /><testcase classname="tests.unit.test_wallet" name="test_credit_balance" time="0.013" /><testcase classname="tests.unit.test_wallet" name="test_recieve_token_untrusted_mint" time="0.002" /></testsuite></testsuites>

routstr/wallet.py

@@ -1,6 +1,6 @@
 import asyncio
-import os
 import math
+import os
 from typing import TypedDict
 
 from cashu.core.base import Proof, Token