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+# MistDemo Integration Tests - Issue #199
+
+This document describes the comprehensive integration test suite for the three new CloudKit operations added in issue #199: `lookupZones`, `fetchRecordChanges`, and `uploadAssets`.
+
+## Overview
+
+MistDemo has been enhanced with a proper CLI subcommand architecture and comprehensive integration tests that demonstrate all three new operations working together in realistic workflows.
+
+## Available Commands
+
+```bash
+# Show all available subcommands
+mistdemo --help
+
+# Get help for a specific command
+mistdemo test-integration --help
+mistdemo upload-asset --help
+mistdemo lookup-zones --help
+mistdemo fetch-changes --help
+```
+
+## Quick Start
+
+### 1. Deploy CloudKit Schema (One-Time Setup)
+
+Before running integration tests, deploy the schema to CloudKit:
+
+```bash
+# Save your CloudKit management token
+xcrun cktool save-token
+
+# Import the schema to development environment
+xcrun cktool import-schema \
+  --team-id YOUR_TEAM_ID \
+  --container-id iCloud.com.brightdigit.MistDemo \
+  --environment development \
+  --file schema.ckdb
+```
+
+### 2. Run Integration Tests
+
+```bash
+# Basic integration test
+swift run mistdemo test-integration --api-token YOUR_TOKEN
+
+# Verbose mode with more records
+swift run mistdemo test-integration \
+  --api-token YOUR_TOKEN \
+  --record-count 20 \
+  --verbose
+
+# Skip cleanup to inspect records in CloudKit Console
+swift run mistdemo test-integration \
+  --api-token YOUR_TOKEN \
+  --skip-cleanup
+```
+
+## Individual Operation Commands
+
+### Upload Asset
+
+Upload a binary file to CloudKit:
+
+```bash
+# Upload a file
+swift run mistdemo upload-asset photo.jpg --api-token YOUR_TOKEN
+
+# Upload and create a record
+swift run mistdemo upload-asset document.pdf \
+  --create-record Document \
+  --api-token YOUR_TOKEN
+```
+
+**Features:**
+- Validates file existence
+- Displays upload progress
+- Returns asset tokens
+- Optionally creates a record with the asset
+
+### Lookup Zones
+
+Fetch detailed information about specific zones:
+
+```bash
+# Lookup default zone
+swift run mistdemo lookup-zones "_defaultZone" --api-token YOUR_TOKEN
+
+# Lookup multiple zones
+swift run mistdemo lookup-zones "Photos,Documents,Articles" --api-token YOUR_TOKEN
+```
+
+**Features:**
+- Supports comma-separated zone names
+- Displays zone capabilities
+- Shows owner information
+
+### Fetch Changes
+
+Fetch record changes with incremental sync:
+
+```bash
+# Initial fetch
+swift run mistdemo fetch-changes --api-token YOUR_TOKEN
+
+# Incremental fetch with sync token
+swift run mistdemo fetch-changes \
+  --sync-token "abc123..." \
+  --api-token YOUR_TOKEN
+
+# Fetch all with automatic pagination
+swift run mistdemo fetch-changes --fetch-all --api-token YOUR_TOKEN
+
+# Custom zone and limit
+swift run mistdemo fetch-changes \
+  --zone MyZone \
+  --limit 50 \
+  --api-token YOUR_TOKEN
+```
+
+**Features:**
+- Supports sync tokens for incremental sync
+- Automatic pagination with `--fetch-all`
+- Displays sync tokens for next fetch
+- Shows `moreComing` flag
+
+## Integration Test Suite
+
+The `test-integration` command runs a comprehensive 8-phase workflow:
+
+### Phase 1: Zone Verification
+- Uses `lookupZones(zoneIDs: [.defaultZone])`
+- Verifies zone exists before testing
+- Displays zone capabilities
+
+### Phase 2: Asset Upload
+- Generates test PNG image programmatically
+- Uploads using `uploadAssets(data:)`
+- Configurable size via `--asset-size` (default: 100 KB)
+
+### Phase 3: Create Records with Assets
+- Creates N test records (default: 10)
+- Each record includes: title, index, image asset, timestamp
+- Uses record type: `MistKitIntegrationTest`
+
+### Phase 4: Initial Sync
+- Fetches all records with `fetchRecordChanges()`
+- Saves sync token
+- Verifies test records are included
+
+### Phase 5: Modify Records
+- Updates first 3 records
+- Adds "modified" boolean field
+- Changes title field
+
+### Phase 6: Incremental Sync
+- Uses saved sync token
+- Fetches only modified records
+- Demonstrates incremental sync efficiency
+
+### Phase 7: Final Zone Verification
+- Re-verifies zone state
+- Ensures operations didn't corrupt zone
+
+### Phase 8: Cleanup
+- Deletes all test records
+- Skip with `--skip-cleanup` flag
+- Partial cleanup on errors
+
+## Command Options
+
+### Common Options
+
+All subcommands support:
+
+```bash
+--api-token <token>          # CloudKit API token (or set CLOUDKIT_API_TOKEN env var)
+--container-identifier <id>  # Container ID (default: iCloud.com.brightdigit.MistDemo)
+--environment <env>          # development or production (default: development)
+```
+
+### Test Integration Options
+
+```bash
+--record-count <N>    # Number of test records (default: 10)
+--asset-size <KB>     # Asset size in KB (default: 100)
+--skip-cleanup        # Leave test records in CloudKit
+--verbose             # Show detailed progress
+```
+
+## CloudKit Schema
+
+The integration tests use a custom record type defined in `schema.ckdb`:
+
+```
+RECORD TYPE MistKitIntegrationTest (
+    "title"      STRING QUERYABLE SORTABLE SEARCHABLE,
+    "index"      INT64 QUERYABLE SORTABLE,
+    "image"      ASSET,
+    "createdAt"  TIMESTAMP QUERYABLE SORTABLE,
+    "modified"   INT64 QUERYABLE,
+
+    GRANT READ, CREATE, WRITE TO "_creator",
+    GRANT READ, CREATE, WRITE TO "_icloud",
+    GRANT READ TO "_world"
+);
+```
+
+**Field Descriptions:**
+- `title` - Test record title
+- `index` - Sequential number for ordering
+- `image` - Uploaded test asset
+- `createdAt` - Record creation timestamp
+- `modified` - Boolean flag (0/1) set during updates
+
+## Example Output
+
+```
+================================================================================
+🧪 Integration Test Suite: CloudKit Operations
+================================================================================
+Container: iCloud.com.brightdigit.MistDemo
+Environment: development
+Database: public
+Record Count: 10
+Asset Size: 100 KB
+================================================================================
+
+📋 Phase 1: Verify zone exists
+✅ Found zone: _defaultZone
+
+📤 Phase 2: Upload test assets
+✅ Uploaded asset: 102400 bytes
+
+📝 Phase 3: Create records with assets
+✅ Created 10 records
+
+🔄 Phase 4: Initial sync (fetch all changes)
+✅ Fetched 45 records
+   Found 10 of our test records
+
+✏️  Phase 5: Modify some records
+✅ Updated 3 records
+
+🔄 Phase 6: Incremental sync (fetch only changes)
+✅ Fetched 3 changed records
+   Found 3 of our modified records
+
+🔍 Phase 7: Lookup zone details
+✅ Zone verification complete
+
+🧹 Phase 8: Cleanup test records
+✅ Deleted 10 test records
+
+================================================================================
+✅ Integration Test Complete!
+================================================================================
+
+Phases Completed:
+  ✅ Zone verification with lookupZones
+  ✅ Asset upload with uploadAssets
+  ✅ Record creation with assets
+  ✅ Initial sync with fetchRecordChanges
+  ✅ Record modifications
+  ✅ Incremental sync with sync token
+  ✅ Final zone verification
+  ✅ Cleanup completed
+```
+
+## Troubleshooting
+
+### Schema Not Found
+
+If you see errors about `MistKitIntegrationTest` not existing:
+
+1. Verify schema was deployed: Check CloudKit Console → Schema
+2. Re-import schema using `cktool import-schema`
+3. Ensure you're using the correct environment (`--environment development`)
+
+### Authentication Failed
+
+If you see authentication errors:
+
+1. Verify your API token: https://icloud.developer.apple.com/dashboard/
+2. Check token has permissions for the container
+3. Ensure token hasn't expired
+4. Try setting `CLOUDKIT_API_TOKEN` environment variable
+
+### No Records Found
+
+If integration tests report no records found:
+
+1. Records may not be immediately available after creation
+2. Try running the test again
+3. Use `--skip-cleanup` and check CloudKit Console
+4. Verify you're using the correct database (public vs private)
+
+## Architecture
+
+### File Structure
+
+```
+Examples/MistDemo/
+├── schema.ckdb                           # CloudKit schema
+├── Sources/MistDemo/
+│   ├── MistDemo.swift                    # Command group + CloudKitCommand protocol
+│   ├── Commands/
+│   │   ├── Auth.swift                    # Legacy auth server
+│   │   ├── UploadAsset.swift            # Upload asset command
+│   │   ├── LookupZones.swift            # Lookup zones command
+│   │   ├── FetchChanges.swift           # Fetch changes command
+│   │   └── TestIntegration.swift        # Integration test command
+│   ├── Integration/
+│   │   ├── IntegrationTestRunner.swift  # 8-phase test orchestration
+│   │   ├── IntegrationTestData.swift    # Test data generation
+│   │   └── IntegrationTestError.swift   # Error types
+│   ├── Models/
+│   ├── Utilities/
+│   └── Resources/
+```
+
+### CloudKitCommand Protocol
+
+All subcommands conform to the `CloudKitCommand` protocol:
+
+```swift
+protocol CloudKitCommand {
+    var containerIdentifier: String { get }
+    var apiToken: String { get }
+    var environment: String { get }
+}
+
+extension CloudKitCommand {
+    func resolvedApiToken() -> String
+    func cloudKitEnvironment() -> MistKit.Environment
+}
+```
+
+## Testing with Live CloudKit
+
+To test against your own CloudKit container:
+
+1. Create a container at https://icloud.developer.apple.com/
+2. Generate an API token
+3. Deploy the schema to your container
+4. Update the default container ID or use `--container-identifier`
+5. Run tests:
+
+```bash
+swift run mistdemo test-integration \
+  --container-identifier iCloud.com.yourcompany.YourApp \
+  --api-token YOUR_TOKEN \
+  --environment development
+```
+
+## Future Enhancements
+
+Documented in the plan:
+
+1. **Custom Zone Support** - Add `modifyZones` wrapper to test multi-zone scenarios
+2. **Pagination Testing** - Create 50+ records to trigger pagination
+3. **Error Scenario Testing** - Test invalid zones, corrupted tokens, oversized assets
+4. **Concurrent Operations** - Test parallel uploads and modifications
+5. **Performance Metrics** - Track timing for each phase
+6. **JSON Output** - Machine-readable results for CI/CD integration
+
+## Contributing
+
+When adding new CloudKit operations:
+
+1. Create a subcommand in `Commands/`
+2. Implement the `CloudKitCommand` protocol
+3. Add to the `MistDemo.configuration.subcommands` array
+4. Update integration tests if needed
+5. Document usage in this README
+
+## References
+
+- Issue #199: CloudKit API Coverage
+- Commit: 1d0b348 - Add lookupZones, fetchRecordChanges, and uploadAssets operations
+- Plan: `/Users/leo/.claude/plans/eager-roaming-rainbow.md`