skip_if_not_installed("lme4")

data(sleepstudy, package = "lme4")

m1 <- lm(mpg ~ wt + cyl + vs, data = mtcars)
m2 <- lm(mpg ~ wt + cyl, data = mtcars)
m3 <- lme4::lmer(Reaction ~ Days + (1 | Subject), data = sleepstudy)
m4 <- glm(formula = vs ~ wt, family = binomial(), data = mtcars)

test_that("all_models_equal", {
  expect_true(all_models_equal(m1, m2))
  expect_false(all_models_equal(m1, m2, mtcars))
  suppressMessages(expect_message(all_models_equal(m1, m2, mtcars, verbose = TRUE)))
  expect_false(suppressMessages(all_models_equal(m1, m2, mtcars, verbose = TRUE)))
  expect_false(all_models_equal(m1, m2, m3))
  expect_message(expect_false(all_models_equal(m1, m4, m2, m3, verbose = TRUE)))

  expect_true(is_model_supported(m1))
  expect_false(is_model_supported(mtcars))
})