Add resources parameter to MCPServer (#2414)

Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>

tests/server/mcpserver/test_server.py

@@ -685,6 +685,32 @@ class TestServerTools:
 
 
 class TestServerResources:
+    async def test_init_with_resources(self):
+        def get_text() -> str:
+            """Seeded resource."""
+            return "Hello from init!"
+
+        resource = FunctionResource.from_function(fn=get_text, uri="resource://init", name="init_resource")
+
+        mcp = MCPServer(resources=[resource])
+
+        async with Client(mcp) as client:
+            assert client.initialize_result.capabilities.resources is not None
+
+            resources = await client.list_resources()
+            assert len(resources.resources) == 1
+            listed = resources.resources[0]
+            assert listed.uri == "resource://init"
+            assert listed.name == "init_resource"
+            assert listed.description == "Seeded resource."
+
+            result = await client.read_resource("resource://init")
+
+            assert len(result.contents) == 1
+            content = result.contents[0]
+            assert isinstance(content, TextResourceContents)
+            assert content.text == "Hello from init!"
+
     async def test_text_resource(self):
         mcp = MCPServer()