3da831b0c9* mcp: move to 2025-06-18 schema Add types and fields for the latest MCP schema. The main challenge here was dealing with the presence of _meta fields on many types, like Tool, Prompt and Resource. - Distinguish between the _meta field of a request's params, which includes a progress token, from the _meta field on other types, which is simply a map. - Redefine GetMeta to return a pointer to the map. We wanted to avoid that, but I don't see a clean way to do so. An alternative would be to have GetMeta return a map, and SetMeta to set it. - Provide GetProgressToken for requests only (not notifications or other types). - Still to do: deal with the meta and annotation fields of ContentBlock, which are currently duplicated for Resource and ResourceContents. * Meta and progress token redesign
69 lines
1.7 KiB
Go
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 (
|
|
"encoding/json"
|
|
"maps"
|
|
"testing"
|
|
)
|
|
|
|
func TestParamsMeta(t *testing.T) {
|
|
// Verify some properties of the Meta field of Params structs.
|
|
// We use CallToolParams for the test, but the Meta setup of all params types
|
|
// is identical so they should all behave the same.
|
|
|
|
toJSON := func(x any) string {
|
|
data, err := json.Marshal(x)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
return string(data)
|
|
}
|
|
|
|
meta := map[string]any{"m": 1}
|
|
|
|
// You can set the embedded Meta field to a literal map.
|
|
p := &CallToolParams{
|
|
Meta: meta,
|
|
Name: "name",
|
|
}
|
|
|
|
// The Meta field marshals properly when it's present.
|
|
if g, w := toJSON(p), `{"_meta":{"m":1},"name":"name"}`; g != w {
|
|
t.Errorf("got %s, want %s", g, w)
|
|
}
|
|
// ... and when it's absent.
|
|
p2 := &CallToolParams{Name: "n"}
|
|
if g, w := toJSON(p2), `{"name":"n"}`; g != w {
|
|
t.Errorf("got %s, want %s", g, w)
|
|
}
|
|
|
|
// The GetMeta and SetMeta functions work as expected.
|
|
if g := p.GetMeta(); !maps.Equal(g, meta) {
|
|
t.Errorf("got %+v, want %+v", g, meta)
|
|
}
|
|
|
|
meta2 := map[string]any{"x": 2}
|
|
p.SetMeta(meta2)
|
|
if g := p.GetMeta(); !maps.Equal(g, meta2) {
|
|
t.Errorf("got %+v, want %+v", g, meta2)
|
|
}
|
|
|
|
// The GetProgressToken and SetProgressToken methods work as expected.
|
|
if g := p.GetProgressToken(); g != nil {
|
|
t.Errorf("got %v, want nil", g)
|
|
}
|
|
|
|
p.SetProgressToken("t")
|
|
if g := p.GetProgressToken(); g != "t" {
|
|
t.Errorf("got %v, want `t`", g)
|
|
}
|
|
|
|
// You can set a progress token to an int, int32 or int64.
|
|
p.SetProgressToken(int(1))
|
|
p.SetProgressToken(int32(1))
|
|
p.SetProgressToken(int64(1))
|
|
}
|