| 1 | package config |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "strings" |
| 7 | "testing" |
| 8 | ) |
| 9 | |
| 10 | func TestLoadForRootUsesLastKnownGoodWhenUserConfigBroken(t *testing.T) { |
| 11 | home := t.TempDir() |
| 12 | t.Setenv("REASONIX_HOME", home) |
| 13 | // Broken live config. |
| 14 | if err := os.WriteFile(filepath.Join(home, "config.toml"), []byte("[broken\n"), 0o600); err != nil { |
| 15 | t.Fatal(err) |
| 16 | } |
| 17 | // Valid LKG snapshot. |
| 18 | lkgDir := filepath.Join(home, "repair") |
| 19 | if err := os.MkdirAll(lkgDir, 0o755); err != nil { |
| 20 | t.Fatal(err) |
| 21 | } |
| 22 | good := []byte("default_model = \"from-lkg\"\n") |
| 23 | if err := os.WriteFile(LastKnownGoodConfigPath(), good, 0o600); err != nil { |
| 24 | t.Fatal(err) |
| 25 | } |
| 26 | |
| 27 | cfg, err := LoadForRoot(t.TempDir()) |
| 28 | if err != nil { |
| 29 | t.Fatalf("LoadForRoot: %v", err) |
| 30 | } |
| 31 | if cfg.DefaultModel != "from-lkg" { |
| 32 | t.Fatalf("default_model=%q want from-lkg", cfg.DefaultModel) |
| 33 | } |
| 34 | if !cfg.HasLoadWarnings() { |
| 35 | t.Fatal("expected load warning") |
| 36 | } |
| 37 | // Original file must remain untouched. |
| 38 | raw, err := os.ReadFile(filepath.Join(home, "config.toml")) |
| 39 | if err != nil || string(raw) != "[broken\n" { |
| 40 | t.Fatalf("original config rewritten: %q err=%v", raw, err) |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | func TestLoadForRootUsesDefaultsWhenNoLKG(t *testing.T) { |
| 45 | home := t.TempDir() |
| 46 | t.Setenv("REASONIX_HOME", home) |
| 47 | if err := os.WriteFile(filepath.Join(home, "config.toml"), []byte("[broken\n"), 0o600); err != nil { |
| 48 | t.Fatal(err) |
| 49 | } |
| 50 | cfg, err := LoadForRoot(t.TempDir()) |
| 51 | if err != nil { |
| 52 | t.Fatal(err) |
| 53 | } |
| 54 | if !cfg.HasLoadWarnings() { |
| 55 | t.Fatal("expected warning") |
| 56 | } |
| 57 | found := false |
| 58 | for _, w := range cfg.LoadWarnings() { |
| 59 | if strings.Contains(w, "built-in defaults") { |
| 60 | found = true |
| 61 | } |
| 62 | } |
| 63 | if !found { |
| 64 | t.Fatalf("warnings=%v", cfg.LoadWarnings()) |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | func TestLoadForRootTypeErrorDoesNotPartiallyApplyUserConfig(t *testing.T) { |
| 69 | home := t.TempDir() |
| 70 | t.Setenv("REASONIX_HOME", home) |
| 71 | body := "default_model = \"must-not-survive\"\n[ui]\nshow_reasoning = \"not-a-bool\"\n" |
| 72 | if err := os.WriteFile(filepath.Join(home, "config.toml"), []byte(body), 0o600); err != nil { |
| 73 | t.Fatal(err) |
| 74 | } |
| 75 | want := Default().DefaultModel |
| 76 | cfg, err := LoadForRoot(t.TempDir()) |
| 77 | if err != nil { |
| 78 | t.Fatal(err) |
| 79 | } |
| 80 | if cfg.DefaultModel != want { |
| 81 | t.Fatalf("partially decoded user model=%q want default %q", cfg.DefaultModel, want) |
| 82 | } |
| 83 | if !cfg.HasLoadWarnings() { |
| 84 | t.Fatal("expected user config warning") |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | func TestLoadForRootIsolatesBrokenProjectConfig(t *testing.T) { |
| 89 | home := t.TempDir() |
| 90 | t.Setenv("REASONIX_HOME", home) |
| 91 | if err := os.WriteFile(filepath.Join(home, "config.toml"), []byte("default_model = \"user-model\"\n"), 0o600); err != nil { |
| 92 | t.Fatal(err) |
| 93 | } |
| 94 | project := t.TempDir() |
| 95 | if err := os.WriteFile(filepath.Join(project, "reasonix.toml"), []byte("[broken\n"), 0o600); err != nil { |
| 96 | t.Fatal(err) |
| 97 | } |
| 98 | cfg, err := LoadForRoot(project) |
| 99 | if err != nil { |
| 100 | t.Fatal(err) |
| 101 | } |
| 102 | if cfg.DefaultModel != "user-model" { |
| 103 | t.Fatalf("user model lost: %q", cfg.DefaultModel) |
| 104 | } |
| 105 | if !cfg.HasLoadWarnings() { |
| 106 | t.Fatal("expected project warning") |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | func TestLoadForRootTypeErrorDoesNotPartiallyApplyProjectConfig(t *testing.T) { |
| 111 | home := t.TempDir() |
| 112 | t.Setenv("REASONIX_HOME", home) |
| 113 | if err := os.WriteFile(filepath.Join(home, "config.toml"), []byte("default_model = \"user-model\"\n"), 0o600); err != nil { |
| 114 | t.Fatal(err) |
| 115 | } |
| 116 | project := t.TempDir() |
| 117 | body := "default_model = \"project-model\"\n[ui]\nshow_reasoning = \"not-a-bool\"\n" |
| 118 | if err := os.WriteFile(filepath.Join(project, "reasonix.toml"), []byte(body), 0o600); err != nil { |
| 119 | t.Fatal(err) |
| 120 | } |
| 121 | cfg, err := LoadForRoot(project) |
| 122 | if err != nil { |
| 123 | t.Fatal(err) |
| 124 | } |
| 125 | if cfg.DefaultModel != "user-model" { |
| 126 | t.Fatalf("partially decoded project model=%q", cfg.DefaultModel) |
| 127 | } |
| 128 | if !cfg.HasLoadWarnings() { |
| 129 | t.Fatal("expected project config warning") |
| 130 | } |
| 131 | } |
| 132 |