Add test for API server

pkg/server/server_test.go

@@ -0,0 +1,159 @@
+package server
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"net"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/docker/cagent/pkg/api"
+	"github.com/docker/cagent/pkg/config"
+	latest "github.com/docker/cagent/pkg/config/v2"
+	"github.com/docker/cagent/pkg/session"
+)
+
+func TestServerTODO(t *testing.T) {
+	t.Setenv("OPENAI_API_KEY", "dummy")
+	ctx := t.Context()
+
+	agentsDir := prepareAgentsDir(t, "pirate.yaml")
+	lnPath := startServer(t, ctx, agentsDir)
+
+	t.Run("list agents", func(t *testing.T) {
+		buf := httpGET(t, ctx, lnPath, "/api/agents")
+
+		var agents []any
+		unmarshal(t, buf, &agents)
+
+		assert.NotEmpty(t, agents)
+	})
+
+	t.Run("get agent (no extension)", func(t *testing.T) {
+		buf := httpGET(t, ctx, lnPath, "/api/agents/pirate")
+
+		var cfg latest.Config
+		unmarshal(t, buf, &cfg)
+
+		assert.NotEmpty(t, cfg.Version)
+		require.NotEmpty(t, cfg.Agents)
+		assert.Contains(t, cfg.Agents["root"].Instruction, "pirate")
+	})
+
+	t.Run("get agent", func(t *testing.T) {
+		buf := httpGET(t, ctx, lnPath, "/api/agents/pirate.yaml")
+
+		var cfg latest.Config
+		unmarshal(t, buf, &cfg)
+
+		assert.NotEmpty(t, cfg.Version)
+		require.NotEmpty(t, cfg.Agents)
+		assert.Contains(t, cfg.Agents["root"].Instruction, "pirate")
+	})
+
+	t.Run("get agent's yaml (no extension)", func(t *testing.T) {
+		content := httpGET(t, ctx, lnPath, "/api/agents/pirate/yaml")
+		assert.Contains(t, string(content), "pirate")
+	})
+
+	t.Run("get agent's yaml", func(t *testing.T) {
+		content := httpGET(t, ctx, lnPath, "/api/agents/pirate.yaml/yaml")
+		assert.Contains(t, string(content), "pirate")
+	})
+
+	t.Run("list sessions", func(t *testing.T) {
+		buf := httpGET(t, ctx, lnPath, "/api/sessions")
+
+		var sessions []api.SessionsResponse
+		unmarshal(t, buf, &sessions)
+
+		assert.Empty(t, sessions)
+	})
+}
+
+func prepareAgentsDir(t *testing.T, testFiles ...string) string {
+	t.Helper()
+
+	agentsDir := filepath.Join(t.TempDir(), "agents")
+	err := os.MkdirAll(agentsDir, 0o700)
+	require.NoError(t, err)
+
+	for _, file := range testFiles {
+		buf, err := os.ReadFile(filepath.Join("testdata", file))
+		require.NoError(t, err)
+
+		err = os.WriteFile(filepath.Join(agentsDir, filepath.Base(file)), buf, 0o600)
+		require.NoError(t, err)
+	}
+
+	return agentsDir
+}
+
+func startServer(t *testing.T, ctx context.Context, agentsDir string) string {
+	t.Helper()
+
+	var store mockStore
+	var runConfig config.RuntimeConfig
+
+	srv, err := New(store, runConfig, nil, WithAgentsDir(agentsDir))
+	require.NoError(t, err)
+
+	socketPath := "unix://" + filepath.Join(t.TempDir(), "test.sock")
+	ln, err := Listen(ctx, socketPath)
+	require.NoError(t, err)
+	go func() {
+		<-ctx.Done()
+		_ = ln.Close()
+	}()
+
+	go srv.Serve(ctx, ln)
+
+	return socketPath
+}
+
+func httpGET(t *testing.T, ctx context.Context, socketPath, path string) []byte {
+	t.Helper()
+
+	client := &http.Client{
+		Transport: &http.Transport{
+			DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
+				var d net.Dialer
+				return d.DialContext(ctx, "unix", strings.TrimPrefix(socketPath, "unix://"))
+			},
+		},
+	}
+
+	url := "http://_" + path
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, http.NoBody)
+	require.NoError(t, err)
+
+	resp, err := client.Do(req)
+	require.NoError(t, err)
+	defer resp.Body.Close()
+
+	buf, err := io.ReadAll(resp.Body)
+	require.NoError(t, err)
+
+	return buf
+}
+
+func unmarshal(t *testing.T, buf []byte, v any) {
+	t.Helper()
+	err := json.Unmarshal(buf, &v)
+	require.NoError(t, err)
+}
+
+type mockStore struct {
+	session.Store
+}
+
+func (s mockStore) GetSessions(ctx context.Context) ([]*session.Session, error) {
+	return nil, nil
+}

pkg/server/testdata/pirate.yaml

@@ -0,0 +1,7 @@
+#!/usr/bin/env cagent run
+version: "2"
+
+agents:
+  root:
+    instruction: Always answer by talking like a pirate.
+    model: openai/gpt-4o