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x <- read_xml("<a>
<b><c>123</c></b>
<b><c>456</c></b>
</a>")
test_that("xml_serialize and xml_unserialize work with xml_document input", {
out <- xml_unserialize(xml_serialize(x, NULL))
expect_identical(as.character(x), as.character(out))
f <- tempfile()
on.exit(unlink(f))
xml_serialize(x, f)
expect_identical(as.character(xml_unserialize(f)), as.character(x))
})
test_that("xml_serialize and xml_unserialize work with xml_node input", {
b <- xml_find_first(x, "//b")
out <- xml_unserialize(xml_serialize(b, NULL))
expect_identical(as.character(b), as.character(out))
f <- tempfile()
on.exit(unlink(f))
xml_serialize(b, f)
expect_identical(as.character(xml_unserialize(f)), as.character(b))
})
test_that("xml_serialize and xml_unserialize work with xml_nodeset input", {
b <- xml_find_all(x, "//b")
out <- xml_unserialize(xml_serialize(b, NULL))
expect_identical(as.character(b), as.character(out))
f <- tempfile()
on.exit(unlink(f))
xml_serialize(b, f)
expect_identical(as.character(xml_unserialize(f)), as.character(b))
})
test_that("xml_serialize and xml_unserialize work with HTML-based xml_document input", {
file <- system.file("extdata", "r-project.html", package = "xml2")
x <- read_html(file)
out <- xml_unserialize(xml_serialize(x, NULL))
expect_identical(as.character(x), as.character(out))
f <- tempfile()
on.exit(unlink(f))
xml_serialize(x, f)
expect_identical(as.character(xml_unserialize(f)), as.character(x))
})
test_that("xml_unserialize throws an error if given a invalid object", {
expect_error(xml_unserialize(serialize(1, NULL)), "Not a serialized xml2 object")
})
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