Skip to content

Fix streamable HTTP integration test API usage #20

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
0xeb merged 1 commit into from
Dec 7, 2025
Merged

Fix streamable HTTP integration test API usage #20

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
129 changes: 54 additions & 75 deletions tests/server/streamable_http_integration.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
/// - Simpler than SSE (no separate GET endpoint for events)

#include "fastmcpp/client/transports.hpp"
#include "fastmcpp/exceptions.hpp"
#include "fastmcpp/mcp/handler.hpp"
#include "fastmcpp/server/streamable_http_server.hpp"
#include "fastmcpp/tools/manager.hpp"
Expand Down Expand Up @@ -64,45 +65,32 @@ void test_basic_request_response()
client::StreamableHttpTransport transport("http://" + host + ":" + std::to_string(port));

// Initialize should work and create a session
Json init_request = {{"jsonrpc", "2.0"},
{"id", 1},
{"method", "initialize"},
{"params",
{{"protocolVersion", "2024-11-05"},
{"capabilities", Json::object()},
{"clientInfo", {{"name", "test_client"}, {"version", "1.0.0"}}}}}};

auto init_response = transport.request("mcp", init_request);

// Should have a valid response
assert(init_response.contains("result") && "Initialize should return result");
assert(init_response["result"].contains("serverInfo") && "Should have serverInfo");
// Note: request() takes method name and params, returns unwrapped result
Json init_params = {{"protocolVersion", "2024-11-05"},
{"capabilities", Json::object()},
{"clientInfo", {{"name", "test_client"}, {"version", "1.0.0"}}}};

auto init_result = transport.request("initialize", init_params);

// Should have a valid result (already unwrapped from JSON-RPC envelope)
assert(init_result.contains("serverInfo") && "Should have serverInfo");
assert(transport.has_session() && "Should have session after initialize");

// List tools
Json list_request = {
{"jsonrpc", "2.0"}, {"id", 2}, {"method", "tools/list"}, {"params", {}}};

auto list_response = transport.request("mcp", list_request);
assert(list_response.contains("result") && "tools/list should return result");
assert(list_response["result"].contains("tools") && "Should have tools array");
auto list_result = transport.request("tools/list", Json::object());
assert(list_result.contains("tools") && "Should have tools array");

auto& tools = list_response["result"]["tools"];
auto& tools = list_result["tools"];
assert(tools.is_array() && tools.size() == 1 && "Should have one tool");
assert(tools[0]["name"] == "echo" && "Tool should be echo");

// Call the echo tool
Json call_request = {
{"jsonrpc", "2.0"},
{"id", 3},
{"method", "tools/call"},
{"params", {{"name", "echo"}, {"arguments", {{"message", "Hello, World!"}}}}}};
Json call_params = {{"name", "echo"}, {"arguments", {{"message", "Hello, World!"}}}};

auto call_response = transport.request("mcp", call_request);
assert(call_response.contains("result") && "tools/call should return result");
assert(call_response["result"].contains("content") && "Should have content");
auto call_result = transport.request("tools/call", call_params);
assert(call_result.contains("content") && "Should have content");

auto& content = call_response["result"]["content"];
auto& content = call_result["content"];
assert(content.is_array() && content.size() > 0 && "Should have content array");
assert(content[0]["type"] == "text" && "Content should be text");
assert(content[0]["text"] == "Hello, World!" && "Echo should return input");
Expand Down Expand Up @@ -156,16 +144,12 @@ void test_session_management()
// Before initialize, should have no session
assert(!transport.has_session() && "Should have no session before initialize");

// Initialize
Json init_request = {{"jsonrpc", "2.0"},
{"id", 1},
{"method", "initialize"},
{"params",
{{"protocolVersion", "2024-11-05"},
{"capabilities", Json::object()},
{"clientInfo", {{"name", "test"}, {"version", "1.0"}}}}}};
// Initialize - request() takes method name and params
Json init_params = {{"protocolVersion", "2024-11-05"},
{"capabilities", Json::object()},
{"clientInfo", {{"name", "test"}, {"version", "1.0"}}}};

transport.request("mcp", init_request);
transport.request("initialize", init_params);

// After initialize, should have session
assert(transport.has_session() && "Should have session after initialize");
Expand All @@ -176,10 +160,7 @@ void test_session_management()
assert(server.session_count() == 1 && "Server should have 1 session");

// Second request should reuse session
Json list_request = {
{"jsonrpc", "2.0"}, {"id", 2}, {"method", "tools/list"}, {"params", {}}};

transport.request("mcp", list_request);
transport.request("tools/list", Json::object());

// Session ID should still be the same
assert(transport.session_id() == session_id && "Session ID should persist");
Expand Down Expand Up @@ -228,19 +209,13 @@ void test_server_info()
{
client::StreamableHttpTransport transport("http://" + host + ":" + std::to_string(port));

Json init_request = {{"jsonrpc", "2.0"},
{"id", 1},
{"method", "initialize"},
{"params",
{{"protocolVersion", "2024-11-05"},
{"capabilities", Json::object()},
{"clientInfo", {{"name", "test"}, {"version", "1.0"}}}}}};

auto response = transport.request("mcp", init_request);
Json init_params = {{"protocolVersion", "2024-11-05"},
{"capabilities", Json::object()},
{"clientInfo", {{"name", "test"}, {"version", "1.0"}}}};

assert(response.contains("result"));
auto& result = response["result"];
auto result = transport.request("initialize", init_params);

// Result is already unwrapped from JSON-RPC envelope
// Check server info
assert(result.contains("serverInfo"));
auto& server_info = result["serverInfo"];
Expand Down Expand Up @@ -292,28 +267,32 @@ void test_error_handling()
client::StreamableHttpTransport transport("http://" + host + ":" + std::to_string(port));

// Initialize first
Json init_request = {{"jsonrpc", "2.0"},
{"id", 1},
{"method", "initialize"},
{"params",
{{"protocolVersion", "2024-11-05"},
{"capabilities", Json::object()},
{"clientInfo", {{"name", "test"}, {"version", "1.0"}}}}}};

transport.request("mcp", init_request);

// Call non-existent tool
Json bad_request = {{"jsonrpc", "2.0"},
{"id", 2},
{"method", "tools/call"},
{"params", {{"name", "nonexistent"}, {"arguments", {}}}}};

auto error_response = transport.request("mcp", bad_request);

// Should have error, not result
assert(error_response.contains("error") && "Should have error response");
assert(error_response["error"].contains("code") && "Error should have code");
assert(error_response["error"].contains("message") && "Error should have message");
Json init_params = {{"protocolVersion", "2024-11-05"},
{"capabilities", Json::object()},
{"clientInfo", {{"name", "test"}, {"version", "1.0"}}}};

transport.request("initialize", init_params);

// Call non-existent tool - should throw TransportError with JSON-RPC error
Json bad_params = {{"name", "nonexistent"}, {"arguments", Json::object()}};

bool caught_error = false;
try
{
transport.request("tools/call", bad_params);
// Should not reach here
assert(false && "Should have thrown error for non-existent tool");
}
catch (const fastmcpp::TransportError& e)
{
// Expected - transport throws on JSON-RPC errors
std::string error_msg = e.what();
assert(error_msg.find("JSON-RPC error") != std::string::npos &&
"Should be JSON-RPC error");
caught_error = true;
}

assert(caught_error && "Should have caught TransportError");

std::cout << "PASSED\n";
}
Expand Down
Loading