bf_scaled_bf <- ScaledBernsteinFunction(
scale = 4.638729,
original = AlphaStableBernsteinFunction(alpha = 0.2188059)
)
test_that("Initialize `ScaledBernsteinFunction`", {
expect_s4_class(bf_scaled_bf, "ScaledBernsteinFunction")
expect_error(
ScaledBernsteinFunction(
scale = -1,
ConstantBernsteinFunction(constant = 1)
)
)
expect_error(
ScaledBernsteinFunction(
scale = Inf,
ConstantBernsteinFunction(constant = 1)
)
)
expect_error(
ScaledBernsteinFunction(
scale = NA,
ConstantBernsteinFunction(constant = 1)
)
)
expect_error(
ScaledBernsteinFunction(
scale = NaN,
ConstantBernsteinFunction(constant = 1)
)
)
})
cscale <- sqrt(2)
x <- seq(0, 10, by = 0.25)
actual_fn <- function(x, scale, alpha) {
scale * x^alpha
}
test_that("`valueOf` calculates expected values", {
expect_equal(
valueOf(bf_scaled_bf, x),
actual_fn(
x,
scale = bf_scaled_bf@scale, alpha = bf_scaled_bf@original@alpha
)
)
expect_equal(
valueOf(bf_scaled_bf, x),
valueOf0(bf_scaled_bf, x)
)
expect_equal(
valueOf(bf_scaled_bf, x, cscale = cscale),
actual_fn(
cscale * x,
scale = bf_scaled_bf@scale,
alpha = bf_scaled_bf@original@alpha
)
)
})
d <- 7
test_that("`exIntensities` calculates expected values", {
expect_equal(
exIntensities(bf_scaled_bf, d),
ex_intensities_naive(
actual_fn, d,
scale = bf_scaled_bf@scale,
alpha = bf_scaled_bf@original@alpha
)
)
expect_equal(
exIntensities(bf_scaled_bf, d, cscale = cscale),
ex_intensities_naive(
actual_fn, d,
scale = bf_scaled_bf@scale,
alpha = bf_scaled_bf@original@alpha,
cscale = cscale
)
)
expect_equal(
exIntensities(bf_scaled_bf, d, cscale = cscale),
exIntensities(
bf_scaled_bf, d,
cscale = cscale,
method = "levy",
tolerance = testthat_tolerance()
)
)
expect_equal(
exIntensities(bf_scaled_bf, d, cscale = cscale),
exIntensities(
bf_scaled_bf, d,
cscale = cscale,
method = "stieltjes", tolerance = testthat_tolerance()
)
)
})
test_that("`exQMatrix` calculates expected values", {
expect_equal(
exQMatrix(bf_scaled_bf, d),
ex_qmatrix_naive(
actual_fn, d,
scale = bf_scaled_bf@scale,
alpha = bf_scaled_bf@original@alpha
)
)
expect_equal(
exQMatrix(bf_scaled_bf, d, cscale = cscale),
ex_qmatrix_naive(
actual_fn, d,
cscale = cscale,
scale = bf_scaled_bf@scale,
alpha = bf_scaled_bf@original@alpha
)
)
expect_equal(
exQMatrix(bf_scaled_bf, d, cscale = cscale),
exQMatrix(
bf_scaled_bf, d,
cscale = cscale,
method = "levy", tolerance = testthat_tolerance()
)
)
expect_equal(
exQMatrix(bf_scaled_bf, d, cscale = cscale),
exQMatrix(
bf_scaled_bf, d,
cscale = cscale,
method = "stieltjes", tolerance = testthat_tolerance()
)
)
})
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