test_that("espn_games() returns non-empty data.frame", { skip_if_offline() test <- espn_games() expect_true(is.data.frame(test) && nrow(test) > 0) }) test_that("espn_games(0) returns message and empty data.frame", { skip_if_offline() expect_message( test <- espn_games(0), 'Invalid argument\\(s\\); refer to help file\\.' ) expect_true(is.data.frame(test) && nrow(test) == 0) })