library(testthat) library(binxr) if (inherits(try(loadNamespace("waldo"), silent = TRUE), "try-error")) { assignInNamespace( "waldo_compare", function(x, y, ..., x_arg = "x", y_arg = "y") { if (identical(x, y)) { character() } else { paste0(x_arg, " is not identical to ", y_arg) } }, ns = "testthat" ) } test_check("binxr")