# t test ---------------
x <- t.test(1:3, c(1, 1:3))
test_that("get_data.t-test", {
expect_equal(get_data(x)$x, c(1, 2, 3, NA))
})
test_that("model_info.t-test", {
expect_true(model_info(x)$is_ttest)
})
# mcnemar test ---------------
dat <<- matrix(c(794, 86, 150, 570),
nrow = 2,
dimnames = list(
"1st Survey" = c("Approve", "Disapprove"),
"2nd Survey" = c("Approve", "Disapprove")
)
)
m <- mcnemar.test(dat)
test_that("get_data.mcnemar", {
expect_equal(
get_data(m),
structure(c(794, 86, 150, 570),
.Dim = c(2L, 2L),
.Dimnames = list(
`1st Survey` = c("Approve", "Disapprove"),
`2nd Survey` = c("Approve", "Disapprove")
), class = "table"
)
)
})
test_that("model_info.mcnemar-test", {
expect_true(model_info(m)$is_chi2test)
expect_true(model_info(m)$is_xtab)
})
# fisher test ---------------
TeaTasting <<-
matrix(c(3, 1, 1, 3),
nrow = 2,
dimnames = list(
Guess = c("Milk", "Tea"),
Truth = c("Milk", "Tea")
)
)
m <- fisher.test(TeaTasting, alternative = "greater")
test_that("get_data.fisher", {
expect_equal(
get_data(m),
structure(c(3, 1, 1, 3),
.Dim = c(2L, 2L),
.Dimnames = list(
Guess = c("Milk", "Tea"),
Truth = c("Milk", "Tea")
), class = "table"
)
)
})
test_that("model_info.fisher-test", {
expect_true(model_info(m)$is_chi2test)
expect_true(model_info(m)$is_xtab)
})
# friedmann test ---------------
wb <<- aggregate(warpbreaks$breaks,
by = list(
w = warpbreaks$wool,
t = warpbreaks$tension
),
FUN = mean
)
m <- friedman.test(wb$x, wb$w, wb$t)
test_that("get_data.freedman", {
expect_equal(
get_data(m),
data.frame(
x = c(
44.5555555555556, 28.2222222222222, 24,
28.7777777777778, 24.5555555555556, 18.7777777777778
),
w = c(1L, 2L, 1L, 2L, 1L, 2L),
t = c(1L, 1L, 2L, 2L, 3L, 3L)
),
tolerance = 1e-3,
ignore_attr = TRUE
)
})
test_that("model_info.friedman-test", {
expect_true(model_info(m)$is_ranktest)
})
# shapiro test ---------------
set.seed(123)
m <- shapiro.test(rnorm(10, mean = 5, sd = 3))
test_that("get_data.freedman", {
expect_equal(
get_data(m),
data.frame(
x <- c(
8.67224539231838, 6.07944148117209, 6.20231435178216,
5.33204814783536, 3.33247659573778, 10.3607394104092, 6.49355143468772,
-0.899851469888914, 7.10406770469106, 3.5816257768162
)
),
tolerance = 1e-3,
ignore_attr = TRUE
)
})
test_that("model_info.shapiro-test", {
expect_true(model_info(m)$is_variancetest)
expect_equal(model_info(m)$family, "shapiro")
})
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