test_that("interactive_modulate",
{
skip_on_cran()
iniv <- c(100, 100, 100) # initial value is 100
names(iniv) <- c("brightness", "saturation", "hue")
expected <- image_modulate(img, iniv[1], iniv[2], iniv[3])
expect_equal(expected, interactive_modulate(img))
expect_equal(iniv, interactive_modulate(img, return_param = TRUE))
expect_equal(expected, interactive_modulate(img, scale = scale1))
})
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