feat: migrate config beside executable

cmd/chub/main_test.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	"errors"
+	"path/filepath"
 	"strings"
 	"testing"
 	"time"
@@ -21,6 +22,33 @@ func TestRunCLIRejectsUnknownCommandWithStableCode(t *testing.T) {
 	}
 }
 
+func TestRunCLIUsesPortableDefaultStore(t *testing.T) {
+	store, err := config.New(filepath.Join(t.TempDir(), "config.json"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := store.Save(config.File{Instances: []config.Instance{{ID: "portable", Name: "便携实例", PreferredRemoteDebugPort: 9666}}}); err != nil {
+		t.Fatal(err)
+	}
+	restore := openDefaultConfig
+	openDefaultConfig = func() (*config.Store, error) { return store, nil }
+	t.Cleanup(func() { openDefaultConfig = restore })
+	var out bytes.Buffer
+	if code := runCLI([]string{"list"}, &out, &out); code != 0 || !strings.Contains(out.String(), `"portable"`) {
+		t.Fatalf("code=%d output=%s", code, out.String())
+	}
+}
+
+func TestRunCLIReportsUnavailablePortableConfigWithoutDetails(t *testing.T) {
+	restore := openDefaultConfig
+	openDefaultConfig = func() (*config.Store, error) { return nil, config.ErrDefaultConfigUnavailable }
+	t.Cleanup(func() { openDefaultConfig = restore })
+	var out bytes.Buffer
+	if code := runCLI([]string{"list"}, &out, &out); code != 6 || !strings.Contains(out.String(), `"default configuration is unavailable"`) {
+		t.Fatalf("code=%d output=%s", code, out.String())
+	}
+}
+
 func TestInstanceStarterBuildsLaunchSpecFromInstanceAndSettings(t *testing.T) {
 	launcher := &fakeProcessLauncher{handle: fakeProcessHandle{pid: 4242}}
 	resolver := &fakeExecutableResolver{path: `C:\Browser\msedge.exe`}