test(tools): comprehensive test suites for search_exploit_db, search_packetstorm, and get_cwe_details (+125 tests)

[manus-use]

Summary

Adds comprehensive, fully-mocked test suites for three core security tools that previously had zero test coverage:

• search_exploit_db — Exploit-DB search tool (38 tests)
• search_packetstorm — Packet Storm Security search tool (41 tests)
• get_cwe_details — CWE weakness lookup tool (46 tests)

Total: +125 new tests (baseline 1158 → 1283, 0 failures)

What's tested

For each module, the test suite covers:

Category	Details
TOOL_SPEC validation	Schema structure, required fields, types
Input validation	Missing/empty/invalid inputs, type coercion errors
Successful operations	Result parsing, HTML extraction, field presence
No results	Empty responses, graceful "not found" handling
HTTP errors	Connection errors, timeouts, 4xx/5xx status codes
Unexpected exceptions	Generic RuntimeError, ValueError catch-all paths
HTML parsing edge cases	Malformed entries, missing markers, partial matches
Output logger integration	log_tool_output_size called on every code path
Module interface	Importability, **kwargs compatibility with Strands SDK

Why these three tools?

These are core security intelligence tools used by VulnerabilityIntelligenceAgent for exploit discovery and weakness classification. A regression in their HTML parsing (Exploit-DB/PacketStorm change their markup periodically) or error handling would go completely undetected without tests.

Checked against open PRs (no overlap)

Confirmed no overlap with any of the 50 open PRs (#123–#172):

• No existing PR covers search_exploit_db tests
• No existing PR covers search_packetstorm tests
• No existing PR covers get_cwe_details tests
• PR feat(cli): add manus-agent exploit-search subcommand for unified exploit database search #127 (feat(cli): exploit-search) adds a CLI wrapper but no tool-level tests
• PR feat(cli): add manus-agent cwe subcommand for CWE weakness lookup #124 (feat(cli): cwe) adds a CLI wrapper but no tool-level tests

Test results

1283 passed, 3 deselected, 0 failures
ruff check: All checks passed!