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hyperguild/ingestion/internal/mcp/server_test.go
Mathias ddd07ae7eb
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feat(brain): cross-wing tunnels — bidirectional wikilinks + auto-detect
Adds the `brain_tunnel` MCP tool and auto-tunnel behaviour for
`brain_write`, so concepts that appear in multiple wings become
navigable from any of them.

New surface in package brain:
- WriteTunnel(brainDir, src, tgt) — appends a `## See also` bidirectional
  wikilink between two notes in different wings. Idempotent (link not
  duplicated on re-call) and reuses an existing See also section.
- DetectTunnels(brainDir, content) — walks brain/wiki/, returns
  TunnelCandidates for notes whose title appears in content. Tags
  whole-word case-insensitive hits as Exact=true and substring-only hits
  as Exact=false.
- AutoTunnel(brainDir, src, content) — wraps DetectTunnels: writes
  cross-wing exact matches, stages fuzzy matches into
  brain/raw/tunnel-candidates-<YYYY-MM-DD>.md for human review.

MCP wiring:
- `brain_tunnel` tool: explicit manual link (source, target).
- `brain_write` with wing+hall now triggers AutoTunnel on the new
  content. Failures are logged and never abort the primary write.

readTitleAndCreated also humanises the slug fallback (hyphens → spaces)
so titleless notes participate in content matching.

Closes hyperguild#16.

Tests: idempotency, same-wing rejection, missing-note rejection,
See-also reuse, exact/fuzzy detection, slug fallback, MCP tool happy
path, auto-tunnel hook (cross-wing exact → linked; same-wing → skipped;
fuzzy → candidates file).
2026-05-18 21:32:49 +02:00

94 lines
2.7 KiB
Go

package mcp_test
import (
"bytes"
"encoding/json"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/mathiasbq/hyperguild/ingestion/internal/mcp"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func body(t *testing.T, v any) *bytes.Buffer {
t.Helper()
b, err := json.Marshal(v)
require.NoError(t, err)
return bytes.NewBuffer(b)
}
func TestServerInitialize(t *testing.T) {
srv := mcp.NewServer(t.TempDir(), nil, nil, nil)
req := httptest.NewRequest(http.MethodPost, "/mcp", body(t, map[string]any{
"jsonrpc": "2.0", "id": 1, "method": "initialize",
"params": map[string]any{},
}))
rr := httptest.NewRecorder()
srv.ServeHTTP(rr, req)
assert.Equal(t, http.StatusOK, rr.Code)
var resp map[string]any
require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &resp))
result := resp["result"].(map[string]any)
assert.Equal(t, "2024-11-05", result["protocolVersion"])
}
func TestServerToolsList(t *testing.T) {
srv := mcp.NewServer(t.TempDir(), nil, nil, nil)
req := httptest.NewRequest(http.MethodPost, "/mcp", body(t, map[string]any{
"jsonrpc": "2.0", "id": 2, "method": "tools/list",
}))
rr := httptest.NewRecorder()
srv.ServeHTTP(rr, req)
assert.Equal(t, http.StatusOK, rr.Code)
var resp map[string]any
require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &resp))
tools := resp["result"].(map[string]any)["tools"].([]any)
names := make([]string, 0, len(tools))
for _, t := range tools {
names = append(names, t.(map[string]any)["name"].(string))
}
assert.ElementsMatch(t, []string{
"brain_query", "brain_write", "brain_index", "brain_tunnel",
"brain_ingest_raw", "brain_ingest",
"brain_answer", "brain_classify", "session_log",
}, names)
}
func TestServerNotificationGetsNoBody(t *testing.T) {
srv := mcp.NewServer(t.TempDir(), nil, nil, nil)
req := httptest.NewRequest(http.MethodPost, "/mcp", body(t, map[string]any{
"jsonrpc": "2.0", "method": "notifications/initialized",
}))
rr := httptest.NewRecorder()
srv.ServeHTTP(rr, req)
assert.Equal(t, http.StatusOK, rr.Code)
assert.Empty(t, strings.TrimSpace(rr.Body.String()))
}
func TestServerUnknownMethodReturnsError(t *testing.T) {
srv := mcp.NewServer(t.TempDir(), nil, nil, nil)
req := httptest.NewRequest(http.MethodPost, "/mcp", body(t, map[string]any{
"jsonrpc": "2.0", "id": 3, "method": "unknown/method",
}))
rr := httptest.NewRecorder()
srv.ServeHTTP(rr, req)
assert.Equal(t, http.StatusOK, rr.Code)
var resp map[string]any
require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &resp))
require.NotNil(t, resp["error"])
errObj := resp["error"].(map[string]any)
assert.Equal(t, float64(-32601), errObj["code"])
assert.Contains(t, errObj["message"].(string), "unknown/method")
}