viye/internal/config/config_test.go (view raw)
Oleksandr Smirnov
Oleksandr Smirnov
olexsmir@gmail.com use olexsmir.xyz/x/is for asserts; test missing plumbings, 2 months ago
olexsmir@gmail.com use olexsmir.xyz/x/is for asserts; test missing plumbings, 2 months ago
| 1 | package config |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "testing" |
| 7 | |
| 8 | "olexsmir.xyz/x/is" |
| 9 | ) |
| 10 | |
| 11 | func TestLoad(t *testing.T) { |
| 12 | t.Run("creates default config when file missing", func(t *testing.T) { |
| 13 | want := Config{cfg: make(map[string]string)} |
| 14 | is.Err(t, want.read(defaultConfig), nil) |
| 15 | |
| 16 | dir := t.TempDir() |
| 17 | t.Setenv("XDG_CONFIG_HOME", dir) |
| 18 | |
| 19 | cfg, err := Load() |
| 20 | is.Err(t, err, nil) |
| 21 | for key, val := range want.cfg { |
| 22 | is.Equal(t, val, cfg.Get(key)) |
| 23 | } |
| 24 | }) |
| 25 | |
| 26 | t.Run("loads existing config file", func(t *testing.T) { |
| 27 | dir := t.TempDir() |
| 28 | t.Setenv("XDG_CONFIG_HOME", dir) |
| 29 | |
| 30 | cfgDir := filepath.Join(dir, "viye.conf") |
| 31 | is.Err(t, os.WriteFile(cfgDir, []byte("custom = value\n"), 0o644), nil) |
| 32 | |
| 33 | cfg, err := Load() |
| 34 | is.Err(t, err, nil) |
| 35 | is.Equal(t, "value", cfg.Get("custom")) |
| 36 | }) |
| 37 | |
| 38 | t.Run("invalid config file returns error", func(t *testing.T) { |
| 39 | dir := t.TempDir() |
| 40 | t.Setenv("XDG_CONFIG_HOME", dir) |
| 41 | |
| 42 | cfgDir := filepath.Join(dir, "viye.conf") |
| 43 | is.Err(t, os.WriteFile(cfgDir, []byte("bad line\n"), 0o644), nil) |
| 44 | |
| 45 | _, err := Load() |
| 46 | is.Err(t, err, ErrInvalidConfig) |
| 47 | }) |
| 48 | } |
| 49 | |
| 50 | func TestSet(t *testing.T) { |
| 51 | dir := t.TempDir() |
| 52 | path := filepath.Join(dir, "conf") |
| 53 | c := Config{ |
| 54 | cfgPath: path, |
| 55 | cfg: map[string]string{}, |
| 56 | } |
| 57 | |
| 58 | is.Err(t, c.Set("key", "val"), nil) |
| 59 | is.Equal(t, "val", c.cfg["key"]) |
| 60 | |
| 61 | b, err := os.ReadFile(path) |
| 62 | is.Err(t, err, nil) |
| 63 | is.Equal(t, "key = val\n", string(b)) |
| 64 | } |
| 65 | |
| 66 | func TestRead(t *testing.T) { |
| 67 | t.Run("valid config", func(t *testing.T) { |
| 68 | c := Config{cfg: make(map[string]string)} |
| 69 | is.Err(t, c.read([]byte("key1 = value1\nkey2 = value2\n")), nil) |
| 70 | is.Equal(t, "value1", c.cfg["key1"]) |
| 71 | is.Equal(t, "value2", c.cfg["key2"]) |
| 72 | }) |
| 73 | |
| 74 | t.Run("trailing newline", func(t *testing.T) { |
| 75 | c := Config{cfg: make(map[string]string)} |
| 76 | is.Err(t, c.read([]byte("key = val\n")), nil) |
| 77 | is.Equal(t, "val", c.cfg["key"]) |
| 78 | }) |
| 79 | |
| 80 | t.Run("empty lines", func(t *testing.T) { |
| 81 | c := Config{cfg: make(map[string]string)} |
| 82 | is.Err(t, c.read([]byte("\nkey = val\n\n")), nil) |
| 83 | is.Equal(t, "val", c.cfg["key"]) |
| 84 | }) |
| 85 | |
| 86 | t.Run("multiple equals signs", func(t *testing.T) { |
| 87 | c := Config{cfg: make(map[string]string)} |
| 88 | is.Err(t, c.read([]byte("key = val = extra")), ErrInvalidConfig) |
| 89 | }) |
| 90 | |
| 91 | t.Run("no separator", func(t *testing.T) { |
| 92 | c := Config{cfg: make(map[string]string)} |
| 93 | is.Err(t, c.read([]byte("justtext")), ErrInvalidConfig) |
| 94 | }) |
| 95 | } |