Nothing
context("t-Test")
# Main functions
test_that("t_test returns tibble", {
t1 <- t_test(WoJ, temp_contract, autonomy_selection, autonomy_emphasis)
t2 <- t_test(WoJ, autonomy_emphasis, mu = 4.00)
expect_true(tibble::is_tibble(t1))
expect_equal(dim(t1), c(2, 12))
expect_true(tibble::is_tibble(t2))
expect_equal(dim(t2), c(1, 9))
})
test_that("t_test returns tibble when no variables are specified", {
t <- t_test(WoJ, temp_contract)
expect_true(tibble::is_tibble(t))
expect_equal(dim(t), c(11, 12))
})
test_that("t_test returns tibble with user-defined levels", {
t <- t_test(WoJ, employment, levels = c("Full-time", "Part-time"))
expect_true(tibble::is_tibble(t))
expect_equal(dim(t), c(11, 12))
})
test_that("one-sample t_test does not interfere", {
expect_error(t_test(WoJ, temp_contract, autonomy_emphasis, mu = 4.00))
expect_error(t_test(WoJ, temp_contract, mu = 4.00))
})
test_that("t_test works with spaces in column names", {
t1 <- WoJ %>%
dplyr::select(temp_contract, `autonomy selection` = autonomy_selection) %>%
t_test(temp_contract)
expect_equal(dim(t1), c(1, 12))
})
# Helper functions
test_that("cohen's d returns correct results", {
x <- WoJ %>%
dplyr::filter(temp_contract == "Permanent") %>%
dplyr::pull(autonomy_selection)
y <- WoJ %>%
dplyr::filter(temp_contract == "Temporary") %>%
dplyr::pull(autonomy_selection)
expect_equal(cohens_d(x, y), 0.277, tolerance = .0005)
expect_equal(cohens_d(x, y, pooled_sd = FALSE), 0.250, tolerance = .0005)
})
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