Creates a new timeline. Timelines allow tests to support multiple languages.

new_timeline(x = stop("x not supplied"), dict = NULL, default_lang = "en")

## Arguments

x

Expression defining a series of test elements. This expression will be evaluated once for every language provided in the dictionary argument (dict). A call to i18n(key), where key is a term defined in dict, will be translated to its definitions in each respective language.

dict

Dictionary object as created by i18n_dict\$new.

default_lang

If no dictionary is supplied, then new_timeline() assumes that the current language is default_lang. This language should be specified by a lower-case string, e.g. 'en', as usual.

## Note

Debugging is difficult within new_timeline() because of its underlying macro definition. When building a test, we recommend defining small timelines first and subsequently combining them. This helps to narrow down the source of any errors.