CrossRelay stage 0+1: Go gateway with Anthropic<->Chat Completions relay, Tauri shell, bilingual management UI
- Go gateway (stdlib only): /v1/messages non-stream + SSE, /v1/messages/count_tokens, management API /api/* (providers CRUD, apply/restore, settings, backups, logs) - Protocol conversion: Anthropic Messages <-> Chat Completions with a streaming state machine keyed by content block index (text, tool_use, parallel calls) - ~/.claude/settings.json guarded read/write: timestamped backups, managed env keys only, one-click restore - Tauri 2 shell: spawns the gateway sidecar, parses the random port from stdout, stdin pipe watchdog prevents orphans, kills the child on exit - React frontend: Dashboard/Providers/Settings, zh-CN + en-US, TanStack Query - Tests: Go table-driven + httptest integration (all green), vitest + RTL
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package claudecfg
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import (
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"encoding/json"
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"os"
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"path/filepath"
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"testing"
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"gitea.rutua.cn/kate522/CrossRelay/internal/config"
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)
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const originalSettings = `{
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"theme": "dark",
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"env": {
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"ANTHROPIC_AUTH_TOKEN": "sk-official",
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"ANTHROPIC_BASE_URL": "https://official.example.com",
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"DISABLE_AUTOUPDATER": "1"
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}
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}
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`
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func newManager(t *testing.T) (*Manager, string) {
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t.Helper()
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dir := t.TempDir()
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settingsPath := filepath.Join(dir, "settings.json")
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if err := os.WriteFile(settingsPath, []byte(originalSettings), 0o600); err != nil {
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t.Fatalf("write settings: %v", err)
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}
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return New(settingsPath, filepath.Join(dir, "backups")), settingsPath
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}
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func readSettings(t *testing.T, path string) map[string]any {
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t.Helper()
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data, err := os.ReadFile(path)
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if err != nil {
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t.Fatalf("read settings: %v", err)
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}
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var out map[string]any
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if err := json.Unmarshal(data, &out); err != nil {
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t.Fatalf("parse settings: %v", err)
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}
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return out
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}
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func TestApplyPreservesUnknownKeys(t *testing.T) {
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mgr, path := newManager(t)
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if _, err := mgr.Apply(ApplyOptions{
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BaseURL: "http://127.0.0.1:8787",
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Token: "crl_test",
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Models: config.Models{Sonnet: "ds-chat", Haiku: "ds-haiku", Opus: "ds-opus", Default: "ds-chat"},
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}); err != nil {
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t.Fatalf("Apply: %v", err)
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}
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settings := readSettings(t, path)
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if settings["theme"] != "dark" {
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t.Errorf("theme lost: %v", settings["theme"])
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}
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env := settings["env"].(map[string]any)
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if env["ANTHROPIC_BASE_URL"] != "http://127.0.0.1:8787" {
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t.Errorf("base url = %v", env["ANTHROPIC_BASE_URL"])
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}
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if env["ANTHROPIC_AUTH_TOKEN"] != "crl_test" {
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t.Errorf("relay token = %v", env["ANTHROPIC_AUTH_TOKEN"])
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}
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if env["DISABLE_AUTOUPDATER"] != "1" {
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t.Errorf("unrelated env key lost: %v", env)
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}
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if env["ANTHROPIC_DEFAULT_HAIKU_MODEL"] != "ds-haiku" {
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t.Errorf("haiku model = %v", env["ANTHROPIC_DEFAULT_HAIKU_MODEL"])
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}
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if env["ANTHROPIC_MODEL"] != "ds-chat" {
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t.Errorf("main model = %v", env["ANTHROPIC_MODEL"])
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}
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}
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func TestApplyCreatesBackupWithOriginalContent(t *testing.T) {
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mgr, _ := newManager(t)
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if _, err := mgr.Apply(ApplyOptions{BaseURL: "http://127.0.0.1:1", Token: "crl_x", Models: config.Models{Default: "m"}}); err != nil {
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t.Fatalf("Apply: %v", err)
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}
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backups, err := mgr.Backups()
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if err != nil {
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t.Fatalf("Backups: %v", err)
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}
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if len(backups) != 1 {
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t.Fatalf("backups = %d, want 1", len(backups))
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}
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data, err := os.ReadFile(filepath.Join(mgr.backupDir, backups[0].Name))
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if err != nil {
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t.Fatalf("read backup: %v", err)
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}
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settings := map[string]any{}
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if err := json.Unmarshal(data, &settings); err != nil {
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t.Fatalf("parse backup: %v", err)
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}
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env := settings["env"].(map[string]any)
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if env["ANTHROPIC_BASE_URL"] != "https://official.example.com" {
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t.Errorf("backup holds post-apply content: %v", env)
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}
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}
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func TestApplyIsIdempotent(t *testing.T) {
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mgr, path := newManager(t)
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opts := ApplyOptions{BaseURL: "http://127.0.0.1:8787", Token: "crl_x", Models: config.Models{Default: "ds-chat"}}
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if _, err := mgr.Apply(opts); err != nil {
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t.Fatalf("first Apply: %v", err)
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}
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afterFirst := readSettings(t, path)
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if _, err := mgr.Apply(opts); err != nil {
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t.Fatalf("second Apply: %v", err)
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}
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afterSecond := readSettings(t, path)
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firstEnv, _ := json.Marshal(afterFirst["env"])
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secondEnv, _ := json.Marshal(afterSecond["env"])
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if string(firstEnv) != string(secondEnv) {
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t.Errorf("env changed on re-apply:\n%s\n%s", firstEnv, secondEnv)
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}
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}
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func TestRestore(t *testing.T) {
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mgr, path := newManager(t)
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if _, err := mgr.Apply(ApplyOptions{BaseURL: "http://127.0.0.1:8787", Token: "crl_x", Models: config.Models{Default: "m"}}); err != nil {
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t.Fatalf("Apply: %v", err)
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}
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name, err := mgr.Restore()
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if err != nil {
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t.Fatalf("Restore: %v", err)
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}
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if name == "" {
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t.Error("Restore returned no backup name")
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}
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env := readSettings(t, path)["env"].(map[string]any)
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if env["ANTHROPIC_BASE_URL"] != "https://official.example.com" {
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t.Errorf("base url after restore = %v", env["ANTHROPIC_BASE_URL"])
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}
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if env["ANTHROPIC_AUTH_TOKEN"] != "sk-official" {
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t.Errorf("token after restore = %v", env["ANTHROPIC_AUTH_TOKEN"])
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}
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}
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func TestRestoreWithoutBackupFails(t *testing.T) {
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mgr, _ := newManager(t)
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if _, err := mgr.Restore(); err == nil {
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t.Fatal("Restore succeeded without backups")
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}
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}
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func TestApplyModelRoles(t *testing.T) {
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mgr, path := newManager(t)
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// Only a default: every role falls back to it.
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if _, err := mgr.Apply(ApplyOptions{BaseURL: "http://127.0.0.1:1", Token: "t", Models: config.Models{Default: "only-default"}}); err != nil {
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t.Fatalf("Apply: %v", err)
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}
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env := readSettings(t, path)["env"].(map[string]any)
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for _, key := range []string{
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"ANTHROPIC_MODEL",
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"ANTHROPIC_DEFAULT_SONNET_MODEL",
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"ANTHROPIC_DEFAULT_HAIKU_MODEL",
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"ANTHROPIC_DEFAULT_OPUS_MODEL",
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} {
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if env[key] != "only-default" {
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t.Errorf("%s = %v, want only-default", key, env[key])
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}
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}
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// Empty roles remove the keys again.
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if _, err := mgr.Apply(ApplyOptions{BaseURL: "http://127.0.0.1:1", Token: "t", Models: config.Models{Sonnet: "s"}}); err != nil {
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t.Fatalf("Apply: %v", err)
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}
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env = readSettings(t, path)["env"].(map[string]any)
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if _, ok := env["ANTHROPIC_DEFAULT_OPUS_MODEL"]; ok {
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t.Error("opus key should be removed when the provider has no opus model")
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}
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}
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func TestApplyCreatesMissingSettingsFile(t *testing.T) {
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dir := t.TempDir()
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path := filepath.Join(dir, "settings.json")
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mgr := New(path, filepath.Join(dir, "backups"))
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if _, err := mgr.Apply(ApplyOptions{BaseURL: "http://127.0.0.1:1", Token: "t", Models: config.Models{Default: "m"}}); err != nil {
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t.Fatalf("Apply: %v", err)
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}
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if _, err := os.Stat(path); err != nil {
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t.Fatalf("settings.json not created: %v", err)
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}
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}
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func TestBackupsReturnsEmptySliceNotNil(t *testing.T) {
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dir := t.TempDir()
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mgr := New(filepath.Join(dir, "settings.json"), filepath.Join(dir, "backups"))
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backups, err := mgr.Backups()
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if err != nil {
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t.Fatalf("Backups: %v", err)
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}
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if backups == nil {
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t.Fatal("Backups returned nil, which marshals to JSON null and breaks the UI")
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}
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if len(backups) != 0 {
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t.Errorf("backups = %v, want empty", backups)
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}
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}
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