viye/internal/config/config_test.go (view raw)
| 1 | package config |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "testing" |
| 7 | ) |
| 8 | |
| 9 | func TestLoad(t *testing.T) { |
| 10 | t.Run("creates default config when file missing", func(t *testing.T) { |
| 11 | want := Config{cfg: make(map[string]string)} |
| 12 | if err := want.read(defaultConfig); err != nil { |
| 13 | t.Fatal(err) |
| 14 | } |
| 15 | |
| 16 | dir := t.TempDir() |
| 17 | t.Setenv("XDG_CONFIG_HOME", dir) |
| 18 | |
| 19 | cfg, err := Load() |
| 20 | if err != nil { |
| 21 | t.Fatalf("Load() = _, %v", err) |
| 22 | } |
| 23 | for key, val := range want.cfg { |
| 24 | if cfg.Get(key) != val { |
| 25 | t.Fatalf("got %s=%q, want %q", key, cfg.Get(key), val) |
| 26 | } |
| 27 | } |
| 28 | }) |
| 29 | |
| 30 | t.Run("loads existing config file", func(t *testing.T) { |
| 31 | dir := t.TempDir() |
| 32 | t.Setenv("XDG_CONFIG_HOME", dir) |
| 33 | |
| 34 | cfgDir := filepath.Join(dir, "viye.conf") |
| 35 | if err := os.WriteFile(cfgDir, []byte("custom = value\n"), 0o644); err != nil { |
| 36 | t.Fatal(err) |
| 37 | } |
| 38 | |
| 39 | cfg, err := Load() |
| 40 | if err != nil { |
| 41 | t.Fatalf("Load() = _, %v", err) |
| 42 | } |
| 43 | if cfg.Get("custom") != "value" { |
| 44 | t.Fatalf("got custom=%q, want %q", cfg.Get("custom"), "value") |
| 45 | } |
| 46 | }) |
| 47 | |
| 48 | t.Run("invalid config file returns error", func(t *testing.T) { |
| 49 | dir := t.TempDir() |
| 50 | t.Setenv("XDG_CONFIG_HOME", dir) |
| 51 | |
| 52 | cfgDir := filepath.Join(dir, "viye.conf") |
| 53 | if err := os.WriteFile(cfgDir, []byte("bad line\n"), 0o644); err != nil { |
| 54 | t.Fatal(err) |
| 55 | } |
| 56 | |
| 57 | _, err := Load() |
| 58 | if err != ErrInvalidConfig { |
| 59 | t.Fatalf("got %v, want ErrInvalidConfig", err) |
| 60 | } |
| 61 | }) |
| 62 | } |
| 63 | |
| 64 | func TestSet(t *testing.T) { |
| 65 | dir := t.TempDir() |
| 66 | path := filepath.Join(dir, "conf") |
| 67 | c := Config{ |
| 68 | cfgPath: path, |
| 69 | cfg: map[string]string{}, |
| 70 | } |
| 71 | |
| 72 | if err := c.Set("key", "val"); err != nil { |
| 73 | t.Fatal(err) |
| 74 | } |
| 75 | if c.cfg["key"] != "val" { |
| 76 | t.Fatalf("in-memory: got %v, want key=val", c.cfg) |
| 77 | } |
| 78 | |
| 79 | b, err := os.ReadFile(path) |
| 80 | if err != nil { |
| 81 | t.Fatal(err) |
| 82 | } |
| 83 | if string(b) != "key = val\n" { |
| 84 | t.Fatalf("on disk: got %q, want %q", string(b), "key = val\n") |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | func TestRead(t *testing.T) { |
| 89 | t.Run("valid config", func(t *testing.T) { |
| 90 | c := Config{cfg: make(map[string]string)} |
| 91 | err := c.read([]byte("key1 = value1\nkey2 = value2\n")) |
| 92 | if err != nil { |
| 93 | t.Fatalf("unexpected error: %v", err) |
| 94 | } |
| 95 | if c.cfg["key1"] != "value1" || c.cfg["key2"] != "value2" { |
| 96 | t.Fatalf("got %v, want key1=value1 key2=value2", c.cfg) |
| 97 | } |
| 98 | }) |
| 99 | |
| 100 | t.Run("trailing newline", func(t *testing.T) { |
| 101 | c := Config{cfg: make(map[string]string)} |
| 102 | err := c.read([]byte("key = val\n")) |
| 103 | if err != nil { |
| 104 | t.Fatalf("unexpected error: %v", err) |
| 105 | } |
| 106 | if c.cfg["key"] != "val" { |
| 107 | t.Fatalf("got %v, want key=val", c.cfg) |
| 108 | } |
| 109 | }) |
| 110 | |
| 111 | t.Run("empty lines", func(t *testing.T) { |
| 112 | c := Config{cfg: make(map[string]string)} |
| 113 | err := c.read([]byte("\nkey = val\n\n")) |
| 114 | if err != nil { |
| 115 | t.Fatalf("unexpected error: %v", err) |
| 116 | } |
| 117 | if c.cfg["key"] != "val" { |
| 118 | t.Fatalf("got %v, want key=val", c.cfg) |
| 119 | } |
| 120 | }) |
| 121 | |
| 122 | t.Run("multiple equals signs", func(t *testing.T) { |
| 123 | c := Config{cfg: make(map[string]string)} |
| 124 | err := c.read([]byte("key = val = extra")) |
| 125 | if err != ErrInvalidConfig { |
| 126 | t.Fatalf("got %v, want ErrInvalidConfig", err) |
| 127 | } |
| 128 | }) |
| 129 | |
| 130 | t.Run("no separator", func(t *testing.T) { |
| 131 | c := Config{cfg: make(map[string]string)} |
| 132 | err := c.read([]byte("justtext")) |
| 133 | if err != ErrInvalidConfig { |
| 134 | t.Fatalf("got %v, want ErrInvalidConfig", err) |
| 135 | } |
| 136 | }) |
| 137 | } |