# bf-3uxou: Verify pdftract-cli TH-05 test compilation

## Summary
Verified that `crates/pdftract-cli/tests/TH-05-ssrf-block.rs` compiles without errors or warnings.

## Acceptance Criteria Status

✅ **PASS**: `cargo check --package pdftract-cli --tests` succeeded
- No compilation errors
- No compiler warnings

✅ **PASS**: `cargo test --test TH-05-ssrf-block --package pdftract-cli --no-run` succeeded
- All test functions compiled successfully
- Test binary generated successfully

✅ **PASS**: `assert_ssrf_blocked_error` helper compiles
- Function signature and implementation both valid
- Proper error checking for SSRF_BLOCKED responses

✅ **PASS**: `SSRF_BLOCKED_CODE` constant properly defined
- Constant value: `-32001` (i32)
- Used correctly in assertion helpers

## Test Functions Compiled

All 7 test functions compiled successfully:
1. `test_ipv4_loopback_blocked` - Tests 127.0.0.1 rejection
2. `test_ipv4_wildcard_blocked` - Tests 0.0.0.0 rejection
3. `test_cloud_metadata_blocked` - Tests 169.254.169.254 rejection
4. `test_rfc1918_private_blocked` - Tests 10.0.0.1 rejection
5. `test_ipv6_loopback_blocked` - Tests [::1] rejection
6. `test_http_scheme_rejected` - Tests http:// scheme rejection
7. `test_no_network_connection_attempted` - Tests no network connection made

## Helper Functions Compiled

All helper functions and RAII guards compiled successfully:
- `McpServerGuard` - RAII process cleanup guard
- `spawn_mcp_server()` - Server spawn function
- `write_framed_message()` - JSON-RPC framing
- `read_framed_response()` - JSON-RPC response parsing
- `make_extract_call_request()` - Request construction
- `extract_error_message()` - Error message extraction
- `assert_ssrf_blocked_or_stub()` - Flexible assertion helper
- `assert_ssrf_blocked_error()` - Strict SSRF assertion

## Implementation Details Verified

- Proper use of `Stdio::null()` for stderr (prevents pipe buffer blocking)
- Bounded timeouts in all wait loops (prevents test hangs)
- RAII guard pattern ensures cleanup even on panics
- JSON-RPC framing correctly implemented (Content-Length header + \r\n\r\n)
- Error handling covers both SSRF_BLOCKED errors and stub responses

## Compilation Commands Used

```bash
# Check all tests in pdftract-cli
cargo check --package pdftract-cli --tests

# Compile TH-05-ssrf-block test without running
cargo test --test TH-05-ssrf-block --package pdftract-cli --no-run
```

## Results

✅ **All acceptance criteria PASSED**
- Test file compiles without errors
- No compiler warnings generated
- All test functions successfully compiled
- Helper functions and constants properly defined

## Related Work

- Parent bead: `bf-6bej3`
- Depends on: `bf-67uai` (Verify pdftract-core TH-05 test compilation)