Function Test_SaveConfig_preservesFullLineComments

host/service/config_test.go:97–121

(t *testing.T)

}

func Test_SaveConfig_preservesFullLineComments(t *testing.T) {
	original := "# cache setting\ncache-size 100MB\n"
	path := writeConfigFile(t, original)

	str := "200MB"
	c := map[string]ConfigEntry{
		"cache-size": ConfigValue{Value: &str, Default: "0"},
	}

	if err := (ConfigFileStorer{File: path}).SaveConfig(c); err != nil {
		t.Fatal(err)
	}

	got := readFile(t, path)
	if !strings.Contains(got, "# cache setting\n") {
		t.Errorf("expected full-line comment to be preserved:\n%s", got)
	}
	if !strings.Contains(got, "cache-size 200MB\n") {
		t.Errorf("expected updated value:\n%s", got)
	}
	// Comment must appear immediately before the key
	if !strings.Contains(got, "# cache setting\ncache-size 200MB\n") {
		t.Errorf("comment not directly above key:\n%s", got)
	}
}

func Test_SaveConfig_preservesInlineComment(t *testing.T) {
	original := "cache-size 100MB # large cache\n"