# Memory Tools Unit Tests Design Analysis

This document details the analysis of the 8 missing memory tools in `reversecore_mcp/tools/common/memory_tools.py` and provides a comprehensive design for their happy-path unit tests.

The proposed test implementations can be found in full under:
- Proposed File: `.agents/explorer_m5_1/proposed_test_memory_tools.py`
- Git Patch: `.agents/explorer_m5_1/test_memory_tools.patch`

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## 1. Summary of Analysis

Each of the memory tools interacts with a `MemoryStore` instance (obtained via `get_memory_store()`). The unit tests should mock this store to isolate the tool logic from actual SQLite/file system transactions.

To support all 8 tools, the `mock_store` fixture in `tests/unit/tools/common/test_memory_tools.py` should be expanded with these `AsyncMock` attributes:
- `get_session_context`
- `update_session`
- `find_latest_session`
- `save_pattern`
- `find_similar_patterns`
- `get_relevant_context`

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## 2. Tool-by-Tool Detailed Design

### 1. `list_memory_sessions`
* **Purpose**: List analysis sessions with optional status filtering.
* **Store Async Methods Called**:
  - `store.initialize()`
  - `store.list_sessions(status: str | None, limit: int)`
* **Mock Setup**:
  - `mock_store.list_sessions.return_value = [{"id": "session_123", "analysis_duration_seconds": 3660}]`
* **Test Case Assertions**:
  - Verify that `mock_store.list_sessions` is called once with the parameters `(status="in_progress", limit=5)`.
  - Verify that the tool response status is `"success"`.
  - Verify that `count` is `1`.
  - Verify that the timestamp is formatted correctly: `"analysis_duration_formatted"` must equal `"1h 1m"`.

### 2. `get_memory_session_detail`
* **Purpose**: Retrieve full session details including context, memories, and patterns.
* **Store Async Methods Called**:
  - `store.initialize()`
  - `store.get_session_context(session_id: str)`
* **Mock Setup**:
  - `mock_store.get_session_context.return_value = {"session": {"id": "session_123"}, "memories": [{"id": "m1"}], "patterns": [{"id": "p1"}], "memory_count": 1, "pattern_count": 1}`
* **Test Case Assertions**:
  - Verify that `mock_store.get_session_context` is called with `"session_123"`.
  - Verify that the tool response status is `"success"`.
  - Verify that the returned `session`, `memories`, `patterns`, and `summary` dictionaries match the mocked context.

### 3. `resume_memory_session`
* **Purpose**: Resume an analysis session. Supports fallback search by `binary_name` or latest session if `session_id` is omitted.
* **Store Async Methods Called**:
  - `store.initialize()`
  - EITHER `store.get_session(session_id: str)` OR `store.find_latest_session(binary_name: str | None)`
  - `store.update_session(session_id: str, status="in_progress")`
  - `store.get_session_context(session_id: str)`
* **Mock Setup**:
  - `mock_store.get_session.return_value = {"id": "session_123", "name": "test_session"}`
  - `mock_store.find_latest_session.return_value = {"id": "session_456", "name": "latest_session"}`
  - `mock_store.update_session.return_value = True`
  - `mock_store.get_session_context.return_value = {"session": {"id": "session_123"}, "memories": [{"memory_type": "instruction", "content": "inst"}, {"memory_type": "finding", "content": "finding"}], "patterns": [], "memory_count": 2}`
* **Test Case Assertions**:
  - **By ID**: Call with `session_id="session_123"`. Verify `store.get_session` is called. Verify `update_session` is called with `status="in_progress"`. Verify that the instructions returned contain only the instruction memory items (`len(result["instructions"]) == 1`).
  - **By Binary**: Call with `binary_name="test.exe"` and `session_id=None`. Verify `store.find_latest_session` is called with `"test.exe"`. Verify `update_session` is called.

### 4. `complete_memory_session`
* **Purpose**: Mark a session as completed and save an analysis summary.
* **Store Async Methods Called**:
  - `store.initialize()`
  - `store.update_session(session_id: str, status="completed", summary: str)`
* **Mock Setup**:
  - `mock_store.update_session.return_value = True`
* **Test Case Assertions**:
  - Verify that `mock_store.update_session` is called with `session_id="session_123"`, `status="completed"`, and `summary="analysis completed successfully"`.
  - Verify that the tool response status is `"success"`.
  - Verify that the summary matches the expected string.

### 5. `save_pattern`
* **Purpose**: Save a code/behavior pattern signature for cross-session correlation.
* **Store Async Methods Called**:
  - `store.initialize()`
  - `store.save_pattern(session_id: str, pattern_type: str, pattern_signature: str, description: str | None)`
* **Mock Setup**:
  - `mock_store.save_pattern.return_value = 101`
* **Test Case Assertions**:
  - Verify that `mock_store.save_pattern` is called with all provided parameters (`session_id`, `pattern_type`, `pattern_signature`, `description`).
  - Verify that the tool response status is `"success"` and contains the pattern ID `101`.

### 6. `find_similar_patterns`
* **Purpose**: Search for similar code/behavior patterns in other sessions.
* **Store Async Methods Called**:
  - `store.initialize()`
  - `store.find_similar_patterns(pattern_signature: str, pattern_type: str | None, exclude_session: str | None, limit: int)`
* **Mock Setup**:
  - `mock_store.find_similar_patterns.return_value = [{"id": 101, "pattern_signature": "VirtualAlloc,WriteProcessMemory"}]`
* **Test Case Assertions**:
  - Verify that `mock_store.find_similar_patterns` is called with `exclude_session="session_123"` (mapping `current_session_id`).
  - Verify that the tool response status is `"success"`.
  - Verify that the message includes the correct counts of found patterns.

### 7. `get_relevant_context`
* **Purpose**: Query semantic/historical context matching a given description.
* **Store Async Methods Called**:
  - `store.initialize()`
  - `store.get_relevant_context(current_analysis: str, current_session_id: str | None, limit: int)`
* **Mock Setup**:
  - `mock_store.get_relevant_context.return_value = [{"id": 1, "content": "relevant finding"}]`
* **Test Case Assertions**:
  - Verify that `mock_store.get_relevant_context` is called with parameters `(current_analysis="process hollowing analysis", current_session_id="session_123", limit=3)`.
  - Verify that the response status is `"success"` and `count` is `1`.

### 8. `update_memory_session_time`
* **Purpose**: Add active analysis duration to a session.
* **Store Async Methods Called**:
  - `store.initialize()`
  - `store.update_session(session_id: str, add_duration: float)`
* **Mock Setup**:
  - `mock_store.update_session.return_value = True`
* **Test Case Assertions**:
  - Verify that `mock_store.update_session` is called with `session_id="session_123"` and `add_duration=120.5`.
  - Verify that the response status is `"success"` and message contains `"Added 120.5s to analysis time"`.

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## 3. Recommended Test Suite Additions

The unit test suite additions have been written to `proposed_test_memory_tools.py` and are designed to fully exercise the success paths, error fallbacks (e.g. session not found, zero matches), and ensure that correct arguments are passed down to the underlying `MemoryStore`.
