go-sdk/mcp/sse_test.go
Rob Findley 347a1a0078 internal/mcp: rename ClientConnection to ServerConnection
It's too confusing that you send server requests through the Client, and
send client requests through the ClientConnection. Rename
ClientConnection to ServerConnection, so that the types on the
server side of the control diagram start with 'Server'.

Change-Id: Idfd27af464a9296a2341cd23b2075cd9d0eb6b45
Reviewed-on: https://go-review.googlesource.com/c/tools/+/670538
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Robert Findley <rfindley@google.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
2025-05-07 10:17:38 -07:00

69 lines
1.7 KiB
Go

// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package mcp
import (
"context"
"fmt"
"net/http"
"net/http/httptest"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/modelcontextprotocol/go-sdk/mcp/protocol"
)
func TestSSEServer(t *testing.T) {
for _, closeServerFirst := range []bool{false, true} {
t.Run(fmt.Sprintf("closeServerFirst=%t", closeServerFirst), func(t *testing.T) {
ctx := context.Background()
server := NewServer("testServer", "v1.0.0", nil)
server.AddTools(NewTool("greet", "say hi", sayHi))
sseHandler := NewSSEHandler(func(*http.Request) *Server { return server })
conns := make(chan *ServerConnection, 1)
sseHandler.onConnection = func(cc *ServerConnection) {
select {
case conns <- cc:
default:
}
}
httpServer := httptest.NewServer(sseHandler)
defer httpServer.Close()
clientTransport := NewSSEClientTransport(httpServer.URL)
c := NewClient("testClient", "v1.0.0", clientTransport, nil)
if err := c.Start(ctx); err != nil {
t.Fatal(err)
}
if err := c.Ping(ctx); err != nil {
t.Fatal(err)
}
cc := <-conns
gotHi, err := c.CallTool(ctx, "greet", map[string]any{"name": "user"})
if err != nil {
t.Fatal(err)
}
wantHi := &protocol.CallToolResult{
Content: []protocol.Content{{Type: "text", Text: "hi user"}},
}
if diff := cmp.Diff(wantHi, gotHi); diff != "" {
t.Errorf("tools/call 'greet' mismatch (-want +got):\n%s", diff)
}
// Test that closing either end of the connection terminates the other
// end.
if closeServerFirst {
c.Close()
cc.Wait()
} else {
cc.Close()
c.Wait()
}
})
}
}