if (require("testthat") &&
require("insight") &&
require("quantreg") &&
require("tripack")) {
context("insight, model_info")
data("CobarOre")
set.seed(123)
CobarOre$w <- rnorm(nrow(CobarOre))
# model
m1 <- rqss(z ~ w + qss(cbind(x, y), lambda = .08), data = CobarOre)
test_that("model_info", {
expect_true(model_info(m1)$is_linear)
})
test_that("find_predictors", {
expect_identical(
find_predictors(m1),
list(conditional = c("w", "x", "y"))
)
expect_identical(
find_predictors(m1, flatten = TRUE),
c("w", "x", "y")
)
expect_null(find_predictors(m1, effects = "random"))
})
test_that("find_random", {
expect_null(find_random(m1))
})
test_that("get_random", {
expect_warning(get_random(m1))
})
test_that("find_response", {
expect_identical(find_response(m1), "z")
})
test_that("find_formula", {
expect_length(find_formula(m1), 1)
expect_equal(
find_formula(m1),
list(conditional = as.formula("z ~ w + qss(cbind(x, y), lambda = 0.08)"))
)
})
test_that("find_terms", {
expect_equal(
find_terms(m1),
list(response = "z", conditional = c("w", "qss(cbind(x, y), lambda = 0.08)"))
)
expect_equal(
find_terms(m1, flatten = TRUE),
c("z", "w", "qss(cbind(x, y), lambda = 0.08)")
)
})
test_that("n_obs", {
expect_equal(n_obs(m1), 38)
})
test_that("link_function", {
expect_equal(link_function(m1)(.2), .2, tolerance = 1e-5)
})
test_that("link_inverse", {
expect_equal(link_inverse(m1)(.2), .2, tolerance = 1e-5)
})
test_that("find_parameters", {
expect_equal(
find_parameters(m1),
list(conditional = c("(Intercept)", "w"), smooth_terms = "cbind(x, y)")
)
expect_equal(nrow(get_parameters(m1)), 3)
expect_equal(
get_parameters(m1)$Parameter,
c("(Intercept)", "w", "cbind(x, y)")
)
})
test_that("is_multivariate", {
expect_false(is_multivariate(m1))
})
test_that("find_algorithm", {
expect_equal(find_algorithm(m1), list(algorithm = "sfn"))
})
test_that("find_statistic", {
expect_identical(find_statistic(m1), "t-statistic")
})
}
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