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8c5bdf2 9e0a59f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 | """Unit tests for FastMCPOpenAPI server."""
import httpx
import pytest
from fastmcp.client import Client
from fastmcp.experimental.server.openapi import FastMCPOpenAPI
class TestFastMCPOpenAPIBasicFunctionality:
"""Test basic FastMCPOpenAPI server functionality."""
@pytest.fixture
def simple_openapi_spec(self):
"""Simple OpenAPI spec for testing."""
return {
"openapi": "3.0.0",
"info": {"title": "Test API", "version": "1.0.0"},
"servers": [{"url": "https://api.example.com"}],
"paths": {
"/users/{id}": {
"get": {
"operationId": "get_user",
"summary": "Get user by ID",
"parameters": [
{
"name": "id",
"in": "path",
"required": True,
"schema": {"type": "integer"},
}
],
"responses": {
"200": {
"description": "User retrieved successfully",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"id": {"type": "integer"},
"name": {"type": "string"},
"email": {"type": "string"},
},
}
}
},
}
},
}
},
"/users": {
"post": {
"operationId": "create_user",
"summary": "Create a new user",
"requestBody": {
"required": True,
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"name": {"type": "string"},
"email": {"type": "string"},
},
"required": ["name", "email"],
}
}
},
},
"responses": {
"201": {
"description": "User created successfully",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"id": {"type": "integer"},
"name": {"type": "string"},
"email": {"type": "string"},
},
}
}
},
}
},
}
},
},
}
def test_server_initialization(self, simple_openapi_spec):
"""Test server initialization with OpenAPI spec."""
client = httpx.AsyncClient(base_url="https://api.example.com")
server = FastMCPOpenAPI(
openapi_spec=simple_openapi_spec, client=client, name="Test Server"
)
assert server.name == "Test Server"
# Should have initialized RequestDirector successfully
assert hasattr(server, "_director")
assert hasattr(server, "_spec")
def test_server_initialization_with_custom_name(self, simple_openapi_spec):
"""Test server initialization with custom name."""
client = httpx.AsyncClient(base_url="https://api.example.com")
server = FastMCPOpenAPI(openapi_spec=simple_openapi_spec, client=client)
# Should use default name
assert server.name == "OpenAPI FastMCP"
@pytest.mark.asyncio
async def test_server_creates_tools_from_spec(self, simple_openapi_spec):
"""Test that server creates tools from OpenAPI spec."""
async with httpx.AsyncClient(base_url="https://api.example.com") as client:
server = FastMCPOpenAPI(
openapi_spec=simple_openapi_spec, client=client, name="Test Server"
)
# Test with in-memory client
async with Client(server) as mcp_client:
tools = await mcp_client.list_tools()
# Should have created tools for both operations
assert len(tools) == 2
tool_names = {tool.name for tool in tools}
assert "get_user" in tool_names
assert "create_user" in tool_names
@pytest.mark.asyncio
async def test_server_tool_execution_fallback_to_http(self, simple_openapi_spec):
"""Test tool execution falls back to HTTP when callables aren't available."""
# Use a mock client that will be used for HTTP fallback
mock_client = httpx.AsyncClient()
server = FastMCPOpenAPI(
openapi_spec=simple_openapi_spec, client=mock_client, name="Test Server"
)
# With new architecture, tools are always created using RequestDirector
async with Client(server) as mcp_client:
tools = await mcp_client.list_tools()
# Should still have tools even without callables
assert len(tools) == 2
# Tools should be OpenAPITool instances using RequestDirector
# We'll just verify they exist and are callable
get_user_tool = next(tool for tool in tools if tool.name == "get_user")
assert get_user_tool is not None
assert get_user_tool.description is not None
def test_server_request_director_initialization(self, simple_openapi_spec):
"""Test that server initializes RequestDirector successfully."""
client = httpx.AsyncClient(base_url="https://api.example.com")
# This should not raise an exception
server = FastMCPOpenAPI(
openapi_spec=simple_openapi_spec, client=client, name="Test Server"
)
# Server should be created successfully
assert server is not None
assert server.name == "Test Server"
# RequestDirector and Spec should be initialized
assert hasattr(server, "_director")
assert hasattr(server, "_spec")
def test_server_with_timeout(self, simple_openapi_spec):
"""Test server initialization with timeout setting."""
client = httpx.AsyncClient(base_url="https://api.example.com")
server = FastMCPOpenAPI(
openapi_spec=simple_openapi_spec,
client=client,
name="Test Server",
timeout=30.0,
)
assert server._timeout == 30.0
def test_server_with_empty_spec(self):
"""Test server with minimal OpenAPI spec."""
minimal_spec = {
"openapi": "3.0.0",
"info": {"title": "Empty API", "version": "1.0.0"},
"paths": {},
}
client = httpx.AsyncClient(base_url="https://api.example.com")
server = FastMCPOpenAPI(
openapi_spec=minimal_spec, client=client, name="Empty Server"
)
assert server.name == "Empty Server"
# Should handle empty paths gracefully
assert hasattr(server, "_director")
assert hasattr(server, "_spec")
@pytest.mark.asyncio
async def test_clean_schema_output_no_unused_defs(self):
"""Test that unused schema definitions are removed from tool schemas."""
# Create a spec with unused HTTPValidationError-like definitions
spec_with_unused_defs = {
"openapi": "3.0.0",
"info": {"title": "Test API", "version": "1.0.0"},
"servers": [{"url": "https://api.example.com"}],
"paths": {
"/users": {
"post": {
"operationId": "create_user",
"summary": "Create a new user",
"requestBody": {
"required": True,
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"name": {"type": "string", "title": "Name"},
"active": {
"type": "boolean",
"title": "Active",
},
},
"required": ["name", "active"],
}
}
},
},
"responses": {
"200": {
"description": "User created successfully",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"id": {
"type": "integer",
"title": "Id",
},
"name": {
"type": "string",
"title": "Name",
},
"active": {
"type": "boolean",
"title": "Active",
},
},
"required": ["id", "name", "active"],
"title": "User",
}
}
},
}
},
}
}
},
"components": {
"schemas": {
# This should be removed since it's not referenced
"HTTPValidationError": {
"properties": {
"detail": {
"items": {
"$ref": "#/components/schemas/ValidationError"
},
"title": "Detail",
"type": "array",
}
},
"title": "HTTPValidationError",
"type": "object",
},
"ValidationError": {
"properties": {
"loc": {
"items": {
"anyOf": [{"type": "string"}, {"type": "integer"}]
},
"title": "Location",
"type": "array",
},
"msg": {"title": "Message", "type": "string"},
"type": {"title": "Error Type", "type": "string"},
},
"required": ["loc", "msg", "type"],
"title": "ValidationError",
"type": "object",
},
}
},
}
async with httpx.AsyncClient(base_url="https://api.example.com") as client:
server = FastMCPOpenAPI(
openapi_spec=spec_with_unused_defs, client=client, name="Test Server"
)
async with Client(server) as mcp_client:
tools = await mcp_client.list_tools()
assert len(tools) == 1 # Only the POST operation
tool = tools[0]
# Verify tool has clean schemas without unused $defs
assert tool.name == "create_user"
# Input schema should not have $defs since no references are used
expected_input_schema = {
"type": "object",
"properties": {
"name": {"type": "string", "title": "Name"},
"active": {"type": "boolean", "title": "Active"},
},
"required": ["name", "active"],
}
assert tool.inputSchema == expected_input_schema
# Output schema should not have $defs since no references are used
expected_output_schema = {
"type": "object",
"properties": {
"id": {"type": "integer", "title": "Id"},
"name": {"type": "string", "title": "Name"},
"active": {"type": "boolean", "title": "Active"},
},
"required": ["id", "name", "active"],
"title": "User",
}
assert tool.outputSchema == expected_output_schema
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