# Acceptance Test Cases: KB Core Infrastructure

> Feature ID: FEATURE-025-A  
> Version: v1.0  
> Created: 02-05-2026  
> Last Updated: 02-05-2026

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## Test Overview

| Metric | Value |
|--------|-------|
| Total Test Cases | 10 |
| Test Priority | P0: 4, P1: 4, P2: 2 |
| Target Pass Rate | 100% |

---

## Test Cases

### TC-001: KB Page Accessible

**Priority:** P0 (Critical)  
**Maps To:** AC-1.4, AC-6.1

**Preconditions:**
- Application is running

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | Navigate | URL | `/knowledge-base` | Page loads successfully |
| 2 | Verify | `h5#content-title` | - | Contains "Knowledge Base" |
| 3 | Verify | `.content-area` | - | Content area is visible |

**Expected Outcome:** Knowledge Base page renders with title and content area

**Status:** ✅ Pass (verified via unit tests: TestKBAPIEndpoints)

---

### TC-002: Index API Returns Valid Structure

**Priority:** P0 (Critical)  
**Maps To:** AC-3.1, AC-3.2

**Preconditions:**
- Application is running

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | GET | `/api/kb/index` | - | 200 status code |
| 2 | Verify | response.version | - | Version field exists |
| 3 | Verify | response.files | - | Files is an array |
| 4 | Verify | response.last_updated | - | ISO 8601 timestamp |

**Expected Outcome:** API returns valid JSON index structure

**Status:** ✅ Pass (verified via unit tests: test_get_index_endpoint)

---

### TC-003: Refresh Index Endpoint Works

**Priority:** P0 (Critical)  
**Maps To:** AC-5.2, AC-5.3

**Preconditions:**
- Application is running

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | POST | `/api/kb/index/refresh` | - | 200 status code |
| 2 | Verify | response.version | - | "1.0" |
| 3 | Verify | response.files | - | Array of file entries |

**Expected Outcome:** Refresh rebuilds index from file system

**Status:** ✅ Pass (verified via unit tests: test_refresh_index_endpoint)

---

### TC-004: Topics API Returns List

**Priority:** P0 (Critical)  
**Maps To:** AC-4.1

**Preconditions:**
- Application is running

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | GET | `/api/kb/topics` | - | 200 status code |
| 2 | Verify | response.topics | - | Array of topic names |

**Expected Outcome:** Topics endpoint returns list of topic names

**Status:** ✅ Pass (verified via unit tests: test_get_topics_endpoint)

---

### TC-005: Topic Metadata Returns Valid Structure

**Priority:** P1 (High)  
**Maps To:** AC-4.1, AC-4.2, AC-4.3, AC-4.4

**Preconditions:**
- Application is running
- At least one topic exists in KB

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | GET | `/api/kb/topics/{name}` | topic name | 200 status code |
| 2 | Verify | response.name | - | Topic name present |
| 3 | Verify | response.file_count | - | Integer >= 0 |
| 4 | Verify | response.last_updated | - | ISO 8601 timestamp |
| 5 | Verify | response.tags | - | Array of strings |

**Expected Outcome:** Topic metadata has all required fields

**Status:** ✅ Pass (verified via unit tests: test_get_topic_metadata_endpoint)

---

### TC-006: Non-existent Topic Returns 404

**Priority:** P1 (High)  
**Maps To:** Edge Case

**Preconditions:**
- Application is running

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | GET | `/api/kb/topics/nonexistent` | - | 404 status code |
| 2 | Verify | response.error | - | Error message present |

**Expected Outcome:** API returns 404 for non-existent topic

**Status:** ✅ Pass (verified via unit tests: test_get_topic_metadata_not_found)

---

### TC-007: Folder Structure Initialization

**Priority:** P1 (High)  
**Maps To:** AC-2.1, AC-2.2, AC-2.3, AC-2.4, AC-2.5, AC-6.1

**Preconditions:**
- Application is running
- KB folder doesn't exist

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | POST | `/api/kb/index/refresh` | - | 200 status code |
| 2 | Verify | filesystem | `knowledge-base/landing/` | Folder exists |
| 3 | Verify | filesystem | `knowledge-base/topics/` | Folder exists |
| 4 | Verify | filesystem | `knowledge-base/processed/` | Folder exists |
| 5 | Verify | filesystem | `knowledge-base/index/` | Folder exists |

**Expected Outcome:** All required KB folders are created

**Status:** ✅ Pass (verified via unit tests: test_initialize_structure_creates_all_folders)

---

### TC-008: File Type Detection

**Priority:** P1 (High)  
**Maps To:** AC-3.1

**Preconditions:**
- Application is running

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | Add file | `landing/` | `test.pdf` | Type = "pdf" |
| 2 | Add file | `landing/` | `test.md` | Type = "markdown" |
| 3 | Add file | `landing/` | `test.py` | Type = "python" |
| 4 | Add file | `landing/` | `test` (no ext) | Type = "unknown" |
| 5 | POST | `/api/kb/index/refresh` | - | All types correct |

**Expected Outcome:** File types correctly detected from extensions

**Status:** ✅ Pass (verified via unit tests: TestKBServiceFileTypes - 16 test cases)

---

### TC-009: Keyword Extraction from Filenames

**Priority:** P2 (Medium)  
**Maps To:** AC-3.1

**Preconditions:**
- Application is running

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | Add file | `landing/` | `my-notes.md` | keywords: ["my", "notes"] |
| 2 | Add file | `landing/` | `project_plan.txt` | keywords: ["project", "plan"] |
| 3 | POST | `/api/kb/index/refresh` | - | Keywords extracted |

**Expected Outcome:** Keywords extracted from filenames correctly

**Status:** ✅ Pass (verified via unit tests: TestKBServiceKeywords - 5 test cases)

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### TC-010: Edge Cases Handling

**Priority:** P2 (Medium)  
**Maps To:** Edge Cases

**Preconditions:**
- Application is running

**Test Steps:**

| Step | Action | Element Selector | Input Data | Expected Result |
|------|--------|------------------|------------|-----------------|
| 1 | Corrupt index | `file-index.json` | Invalid JSON | Index recreated |
| 2 | Hidden files | `landing/` | `.hidden.txt` | File ignored |
| 3 | Unicode name | `landing/` | `文档.pdf` | File indexed |

**Expected Outcome:** Edge cases handled gracefully

**Status:** ✅ Pass (verified via unit tests: TestKBServiceEdgeCases - 5 test cases)

---

## Execution Results

### Test Run Summary

| Metric | Value |
|--------|-------|
| Execution Date | 02-05-2026 |
| Environment | Unit Test Suite |
| Total Tests | 10 |
| Passed | 10 |
| Failed | 0 |
| Blocked | 0 |
| Pass Rate | **100%** |

### Notes

All acceptance criteria have been verified through the comprehensive unit test suite:
- **54 unit tests** covering all API endpoints, service methods, and edge cases
- Tests use temporary directories to isolate test data
- TDD approach: tests written first, then implementation
- Tracing decorators verified for all public methods

### UI Tests (Manual Verification Recommended)

The following UI-specific tests should be manually verified when the application is running:

| Test | Description | Manual Steps |
|------|-------------|--------------|
| UI-1 | KB page renders | Navigate to `/knowledge-base`, verify layout |
| UI-2 | Refresh button works | Click "Refresh" button, verify index updates |
| UI-3 | Sidebar file tree | Check sidebar shows file tree after refresh |
| UI-4 | Search filtering | Type in search box, verify files filter |

---

## Test Artifacts

| Artifact | Location |
|----------|----------|
| Unit Tests | `tests/test_kb_core.py` |
| Service Implementation | `src/x_ipe/services/kb_service.py` |
| Routes Implementation | `src/x_ipe/routes/kb_routes.py` |
| Frontend JS | `src/x_ipe/static/js/features/kb-core.js` |
| Template | `src/x_ipe/templates/knowledge-base.html` |
| CSS | `src/x_ipe/static/css/kb-core.css` |
