skip_if(getRversion() < "4.0.0") skip_if_not_installed("withr") withr::with_options( list(parameters_warning_exponentiate = TRUE), { test_that("print warning about complete separation", { d_sep <- data.frame( y = c(0, 0, 0, 0, 1, 1, 1, 1), x1 = c(1, 2, 3, 3, 5, 6, 10, 11), x2 = c(3, 2, -1, -1, 2, 4, 1, 0) ) m_sep <- suppressWarnings(glm(y ~ x1 + x2, data = d_sep, family = binomial)) out <- model_parameters(m_sep) expect_snapshot(print(out)) }) } ) withr::with_options( list(parameters_warning_exponentiate = TRUE), { test_that("print warning about complete separation", { data(mtcars) m_sep2 <- suppressWarnings(glm(am ~ gear, data = mtcars, family = binomial)) out <- model_parameters(m_sep2) expect_snapshot(print(out)) }) } ) withr::with_options( list(parameters_warning_exponentiate = TRUE), { test_that("print warning about quasi complete separation", { data(mtcars) set.seed(323) m_sep3 <- suppressWarnings(glm(vs ~ qsec, data = mtcars[sample(1:32, 15, replace = TRUE), ], family = binomial)) out <- model_parameters(m_sep3) expect_snapshot(print(out)) }) } )