test_batched.py incorrectly marks tests as passed when failure count ends in 0

[hua7450]

Bug

The test_batched.py script incorrectly reports test runs as "passed" when the number of failed tests ends in 0 (10, 20, 30, 40, etc.).

Root Cause

The current logic in policyengine_us/tests/test_batched.py (line 264):

if "failed" not in line or "0 failed" in line:
    test_passed = True

When pytest outputs "40 failed, 8261 passed...", the substring "0 failed" is found within "40 failed", causing the condition to evaluate to True.

Impact

• PR Implement Arizona TANF (cash assistance) program #7150 shows "Full Suite - States" as passing despite 40 test failures
• Any PR with 10, 20, 30, 40, 50... failures will incorrectly pass CI

Proposed Fix

Parse the actual failure count instead of substring matching:

import re

match = re.search(r'(\d+) failed', line)
if match:
    failed_count = int(match.group(1))
    test_passed = (failed_count == 0)
else:
    # No "X failed" in line means all passed
    test_passed = True

Test Cases

Pytest Output	Current (buggy)	Fixed
0 failed, 100 passed	pass	pass
1 failed, 99 passed	fail	fail
10 failed, 90 passed	pass	fail
40 failed, 8261 passed	pass	fail
100 passed (no failures)	pass	pass