Before:
  let g:tmplvim_author = 'jgoguen'
  let g:tmplvim_template_vars = {'WHOAMI': 'A test'}

Include (static variable tests): suites/template_static_vars.vader
Include (date variable tests): suites/date_vars.vader

Include (file include tests): suites/include_file.vader

Include (var does not exist): suites/no_such_var.vader