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aimon-core Test Coverage Priority

Generated from ./gradlew :aimon-core:jacocoTestReport (report: modules/aimon-core/build/reports/jacoco/test/html/index.html).

Headline numbers

Counter Covered Total %
INSTRUCTION 80,835 104,484 77.4%
LINE 17,477 22,529 77.6%
BRANCH 5,515 8,406 65.6%
METHOD 4,534 5,800 78.2%
CLASS 713 822 86.7%

The 50% → 70% line-coverage goal in the architecture/QA plan is already met post-refactor (77.6%). Branch coverage at 65.6% is the next natural target (→ 70% would need ~370 more covered branches).

Priority list — packages dragging coverage down

Packages are sorted by missed lines × business criticality. Anything ≥ 80% is omitted; "in tier" rules are heuristics so the test author can pick one self-contained chunk per PR.

Tier 1 — large, untested, in critical paths

Package Covered Total % Notes
at.aimon.core.mcp 1 316 0.3% Top-level MCP client API. High value.
at.aimon.core.mcp.transport 0 106 0.0% Stdio/HTTP transports — needs fakes.
at.aimon.core.scheduling.scheduler 0 86 0.0% Quartz adapter glue.
at.aimon.core.tools.task 42 183 23.0% TaskTool / subagent dispatch.
at.aimon.core.llm.streaming 50 174 28.7% SSE / parts assembly.
at.aimon.core.agent.impl.orca.tool 41 127 32.3% Orca tool-provider plumbing.
at.aimon.core.scheduling 244 584 41.8% Engine + manager. Largest package on the list.

Tier 2 — small surface, easy wins

Package Covered Total % Notes
at.aimon.core.agent.impl.orca.environment 0 6 0.0% Trivial — env wiring.
at.aimon.core.agent.session.exception 0 12 0.0% Exception ctors only.
at.aimon.core.mcp.exception 0 12 0.0% Exception ctors.
at.aimon.core.subagent.permission 0 15 0.0% Permission DTOs / enums.
at.aimon.core.hook.exception 0 22 0.0% Exception ctors.
at.aimon.core.mcp.orca 0 25 0.0% OrcaMcpToolProvider.
at.aimon.core.scheduling.repository 0 28 0.0% In-memory store.
at.aimon.core.skill.permission 0 30 0.0% Skill permission DTOs.
at.aimon.core.subagent.context 0 36 0.0% Context wiring.
at.aimon.core.skill.validation 0 41 0.0% Static validators.
at.aimon.core.scheduling.quota 0 43 0.0% Per-agent quota.
at.aimon.core.agent.impl.orca.command 2 69 2.9% Slash-command dispatch.
at.aimon.core.filesystem.config 9 62 14.5% VFS root config builders.

Tier 3 — mid-coverage, fill gaps

at.aimon.core.subagent (60.2%), at.aimon.core.agent.stream (60.6%), at.aimon.core.skill.execution (63.6%), at.aimon.core.subagent.execution (65.0%), at.aimon.core.agent.impl.orca (70.7%). Existing tests cover the happy paths — gaps are mostly error branches and edge cases.

  1. mcp.exception / hook.exception / agent.session.exception / mcp.exception ctors — single test file exercising each constructor with cause / message overloads. ~20 mins, lifts 4 packages from 0% to 100%.
  2. scheduling.repository — InMemoryScheduledTaskRepository round-trip test (save/load/delete/list/findByAgent). ~30 mins.
  3. scheduling.quota — quota-counter behaviour at boundaries (under, at, over) for the in-memory implementation.
  4. mcp.transport — start with StdioMcpTransport using a piped Process stand-in; HTTP transport with a MockWebServer.
  5. llm.streaming — feed canned SSE chunks into the parts-aware reducer and assert the resulting LlmResponse parts.
  6. scheduling core — SchedulingEngineImpl + ScheduledTaskManagerImpl with a fake Scheduler. Largest absolute gain available.

Out of scope for this cycle

Per the plan, Stage 8 is "JaCoCo report + priority list" only. Implementation of the test PRs above is tracked separately.