in cpp/code/common.cc [45:56]
void EndRecipe(const std::string& recipe_name) {
if (current_recipe != recipe_name) {
FAIL() << "Attempt to end a recipe " << recipe_name
<< " but the recipe was not in progress";
}
std::string recipe_output = rout.str();
ASSERT_OK(test_names_builder.Append(recipe_name));
ASSERT_OK(test_output_builder.Append(recipe_output));
current_recipe = "";
}