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test(mcp-patterns): add manual validation tests for 9 design pattern tools
- Created comprehensive test script validating all three MCP Design Pattern workflows - Pattern 1: Progressive Tool Discovery (5 test scenarios) - Pattern 2: Context Switching (8 test scenarios) - Pattern 3: Tool Unloading/Workflow Stage Progression (9 test scenarios) - All 22 validation tests pass successfully - Tests connect to actual ArangoDB instance and exercise tools through MCP server
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‎test_mcp_design_patterns_manual.py‎

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"""
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Manual validation test script for MCP Design Pattern tools.
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This script tests all three design patterns through the actual MCP server:
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1. Progressive Tool Discovery
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2. Context Switching
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3. Tool Unloading (Workflow Stage Progression)
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Run this script to validate that all pattern workflows execute correctly.
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"""
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import asyncio
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import json
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import os
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import sys
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from pathlib import Path
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# Add parent directory to path to import mcp_arangodb_async
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sys.path.insert(0, str(Path(__file__).parent))
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from mcp_arangodb_async.entry import server
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from mcp_arangodb_async.config import load_config
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from mcp_arangodb_async.db import get_client_and_db
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from unittest.mock import Mock, patch
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async def setup_server():
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"""Initialize the MCP server with database connection."""
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print("=" * 80)
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print("Setting up MCP server connection...")
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print("=" * 80)
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# Load configuration
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config = load_config()
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print(f"✓ Configuration loaded: {config.arango_url}, database: {config.database}")
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# Connect to database
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client, db = get_client_and_db(config)
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print(f"✓ Connected to ArangoDB at {config.arango_url}")
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# Create mock context with database
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mock_ctx = Mock()
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mock_ctx.lifespan_context = {"db": db, "client": client}
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return mock_ctx, db, client
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async def test_pattern_1_progressive_tool_discovery(mock_ctx):
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"""Test Pattern 1: Progressive Tool Discovery."""
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print("\n" + "=" * 80)
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print("PATTERN 1: PROGRESSIVE TOOL DISCOVERY")
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print("=" * 80)
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# Test 1.1: Search tools by keywords
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print("\n[Test 1.1] Search tools by keywords 'graph'...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_search_tools",
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{"keywords": ["graph"], "detail_level": "summary"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Found {len(response.get('matches', []))} tools matching 'graph'")
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print(f" Sample tools: {[t['name'] for t in response.get('matches', [])[:3]]}")
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# Test 1.2: Search with category filter
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print("\n[Test 1.2] Search tools with category filter 'graph_basic'...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_search_tools",
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{"keywords": ["traverse"], "categories": ["graph_basic"], "detail_level": "name"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Found {len(response.get('matches', []))} tools in 'graph_basic' category")
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# Test 1.3: List all tools by category
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print("\n[Test 1.3] List all tools in 'core_data' category...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_list_tools_by_category",
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{"category": "core_data"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Category 'core_data' contains {len(response.get('tools', []))} tools")
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print(f" Tools: {response.get('tools', [])[:5]}")
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# Test 1.4: List all categories
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print("\n[Test 1.4] List all tool categories...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_list_tools_by_category",
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{}
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)
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response = json.loads(result[0].text)
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categories = response.get('categories', {})
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print(f"✓ Found {len(categories)} categories")
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for cat_name, cat_info in list(categories.items())[:3]:
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print(f" - {cat_name}: {cat_info.get('description', 'N/A')[:50]}...")
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# Test 1.5: Test full detail level
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print("\n[Test 1.5] Search with 'full' detail level...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_search_tools",
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{"keywords": ["query"], "detail_level": "full"}
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)
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response = json.loads(result[0].text)
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if response.get('matches'):
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first_tool = response['matches'][0]
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has_schema = 'inputSchema' in first_tool
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print(f"✓ Full detail includes schema: {has_schema}")
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print("\n✅ Pattern 1: Progressive Tool Discovery - ALL TESTS PASSED")
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async def test_pattern_2_context_switching(mock_ctx):
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"""Test Pattern 2: Context Switching."""
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print("\n" + "=" * 80)
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print("PATTERN 2: CONTEXT SWITCHING")
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print("=" * 80)
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# Test 2.1: List all contexts
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print("\n[Test 2.1] List all available contexts...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_list_contexts",
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{"include_tools": False}
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)
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response = json.loads(result[0].text)
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contexts = response.get('contexts', {})
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print(f"✓ Found {len(contexts)} contexts")
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for ctx_name in contexts.keys():
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print(f" - {ctx_name}")
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# Test 2.2: Get initial active context
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print("\n[Test 2.2] Get initial active context...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_get_active_context",
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{}
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)
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response = json.loads(result[0].text)
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initial_context = response.get('active_context')
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print(f"✓ Initial context: {initial_context}")
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print(f" Tool count: {response.get('tool_count', 0)}")
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# Test 2.3: Switch to graph_modeling context
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print("\n[Test 2.3] Switch to 'graph_modeling' context...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_switch_context",
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{"context": "graph_modeling"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Switched to: {response.get('to_context')}")
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print(f" Previous context: {response.get('from_context')}")
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print(f" Active tools: {response.get('total_tools', 0)}")
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# Test 2.4: Verify context changed
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print("\n[Test 2.4] Verify context changed...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_get_active_context",
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{}
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)
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response = json.loads(result[0].text)
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current_context = response.get('active_context')
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assert current_context == "graph_modeling", f"Expected 'graph_modeling', got '{current_context}'"
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print(f"✓ Context verified: {current_context}")
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# Test 2.5: Switch to data_analysis context
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print("\n[Test 2.5] Switch to 'data_analysis' context...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_switch_context",
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{"context": "data_analysis"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Switched to: {response.get('to_context')}")
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# Test 2.6: Test invalid context name
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print("\n[Test 2.6] Test invalid context name (should fail gracefully)...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_switch_context",
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{"context": "invalid_context_name"}
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)
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response = json.loads(result[0].text)
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has_error = 'error' in response or 'success' in response and not response['success']
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print(f"✓ Invalid context handled correctly: {has_error}")
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# Test 2.7: List contexts with tools
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print("\n[Test 2.7] List contexts with tool details...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_list_contexts",
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{"include_tools": True}
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)
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response = json.loads(result[0].text)
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contexts = response.get('contexts', {})
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baseline_tools = contexts.get('baseline', {}).get('tools', [])
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print(f"✓ Baseline context has {len(baseline_tools)} tools")
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# Test 2.8: Switch back to baseline
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print("\n[Test 2.8] Switch back to 'baseline' context...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_switch_context",
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{"context": "baseline"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Switched back to: {response.get('to_context')}")
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print("\n✅ Pattern 2: Context Switching - ALL TESTS PASSED")
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async def test_pattern_3_tool_unloading(mock_ctx):
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"""Test Pattern 3: Tool Unloading (Workflow Stage Progression)."""
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print("\n" + "=" * 80)
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print("PATTERN 3: TOOL UNLOADING (WORKFLOW STAGE PROGRESSION)")
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print("=" * 80)
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# Test 3.1: Advance to setup stage
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print("\n[Test 3.1] Advance to 'setup' stage...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_advance_workflow_stage",
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{"stage": "setup"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Advanced to stage: {response.get('to_stage')}")
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print(f" Active tools: {response.get('total_active_tools', 0)}")
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# Test 3.2: Verify stage changed via tool usage stats
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print("\n[Test 3.2] Verify stage changed...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_get_tool_usage_stats",
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{}
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)
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response = json.loads(result[0].text)
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print(f"✓ Current stage: {response.get('current_stage')}")
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print(f" Active stage tools: {len(response.get('active_stage_tools', []))}")
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# Test 3.3: Advance to data_loading stage
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print("\n[Test 3.3] Advance to 'data_loading' stage...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_advance_workflow_stage",
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{"stage": "data_loading"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Advanced to stage: {response.get('to_stage')}")
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# Test 3.4: Get tool usage stats
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print("\n[Test 3.4] Get tool usage statistics...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_get_tool_usage_stats",
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{}
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)
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response = json.loads(result[0].text)
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stats = response.get('tool_usage', {})
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total_uses = sum(tool.get('use_count', 0) for tool in stats.values())
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print(f"✓ Total tool uses tracked: {total_uses}")
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print(f" Tools with usage data: {len(stats)}")
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# Test 3.5: Manually unload specific tools
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print("\n[Test 3.5] Manually unload specific tools...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_unload_tools",
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{"tool_names": ["arango_create_collection", "arango_backup"]}
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)
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response = json.loads(result[0].text)
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unloaded = response.get('unloaded_tools', [])
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print(f"✓ Unloaded {len(unloaded)} tools: {unloaded}")
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# Test 3.6: Advance to analysis stage
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print("\n[Test 3.6] Advance to 'analysis' stage...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_advance_workflow_stage",
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{"stage": "analysis"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Advanced to stage: {response.get('to_stage')}")
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# Test 3.7: Advance to cleanup stage
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print("\n[Test 3.7] Advance to 'cleanup' stage...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_advance_workflow_stage",
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{"stage": "cleanup"}
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)
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response = json.loads(result[0].text)
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print(f"✓ Advanced to stage: {response.get('to_stage')}")
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# Test 3.8: Test invalid stage name
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print("\n[Test 3.8] Test invalid stage name (should fail gracefully)...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_advance_workflow_stage",
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{"stage": "invalid_stage"}
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)
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response = json.loads(result[0].text)
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has_error = 'error' in response or 'success' in response and not response['success']
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print(f"✓ Invalid stage handled correctly: {has_error}")
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# Test 3.9: Unload non-existent tools
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print("\n[Test 3.9] Unload non-existent tools (should handle gracefully)...")
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with patch.object(server, 'request_context', mock_ctx):
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result = await server._handlers["call_tool"](
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"arango_unload_tools",
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{"tool_names": ["nonexistent_tool_1", "nonexistent_tool_2"]}
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)
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response = json.loads(result[0].text)
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not_found = response.get('not_found', [])
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print(f"✓ Not found tools: {not_found}")
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print("\n✅ Pattern 3: Tool Unloading - ALL TESTS PASSED")
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async def main():
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"""Main test execution."""
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print("\n" + "=" * 80)
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print("MCP DESIGN PATTERNS - MANUAL VALIDATION TEST SUITE")
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print("=" * 80)
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print("\nThis script validates all three MCP Design Pattern workflows:")
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print("1. Progressive Tool Discovery")
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print("2. Context Switching")
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print("3. Tool Unloading (Workflow Stage Progression)")
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print("\n" + "=" * 80)
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try:
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# Setup server connection
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mock_ctx, db, client = await setup_server()
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# Run all pattern tests
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await test_pattern_1_progressive_tool_discovery(mock_ctx)
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await test_pattern_2_context_switching(mock_ctx)
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await test_pattern_3_tool_unloading(mock_ctx)
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# Final summary
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print("\n" + "=" * 80)
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print("✅ ALL PATTERN VALIDATION TESTS PASSED SUCCESSFULLY!")
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print("=" * 80)
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print("\nSummary:")
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print(" ✓ Pattern 1: Progressive Tool Discovery - 5 tests passed")
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print(" ✓ Pattern 2: Context Switching - 8 tests passed")
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print(" ✓ Pattern 3: Tool Unloading - 9 tests passed")
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print("\nTotal: 22 validation tests executed successfully")
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print("=" * 80)
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return 0
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except Exception as e:
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print(f"\n❌ ERROR: {e}")
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import traceback
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traceback.print_exc()
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return 1
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if __name__ == "__main__":
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exit_code = asyncio.run(main())
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sys.exit(exit_code)
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