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context("lists")
test_that("R named lists become Python dictionaries", {
skip_if_no_python()
l <- list(a = 1, b = 2, c = 3)
reflected <- test$reflect(l)
expect_equal(l$a, reflected$a)
expect_equal(l$b, reflected$b)
expect_equal(l$c, reflected$c)
})
test_that("Python dictionaries become R named lists", {
skip_if_no_python()
l <- list(a = 1, b = 2, c = 3)
dict <- test$makeDict()
expect_equal(length(dict), length(l))
expect_equal(dict$a, l$a)
expect_equal(dict$b, l$b)
expect_equal(dict$c, l$c)
})
test_that("R unnamed lists become Python lists", {
skip_if_no_python()
l <- list(1L, 2L, 3L)
expect_equal(test$asString(l), "[1, 2, 3]")
})
test_that("Python unnamed tuples become R unnamed lists", {
skip_if_no_python()
l <- list(1, 2, 3)
tuple1 <- test$makeTuple()
expect_equal(tuple1, l)
expect_equal(length(tuple(l)), length(l))
})
test_that("length method for Python lists works", {
skip_if_no_python()
py <- import_builtins(convert = FALSE)
l <- py$list()
l$append(1)
l$append(2)
l$append(3)
expect_equal(length(l), 3)
})
test_that("tuples are converted recursively just like lists", {
skip_if_no_python()
t <- test$makeTupleWithOrderedDict()
expect_equal(class(t[[2]]), "list")
})
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