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|
testthat::context("Parsers and Serializers")
doc <- system.file("extdata/example.rdf", package="redland")
out <- "testing.rdf"
testthat::test_that("we can serialize to character", {
rdf <- rdf_parse(doc)
txt <- rdf_serialize(rdf, format = "nquads")
testthat::expect_is(txt, "character")
testthat::expect_match(txt, "John Smith")
rdf_free(rdf)
})
testthat::test_that("we can parse (in rdfxml)
and serialize (in nquads) a simple rdf graph", {
rdf <- rdf_parse(doc)
rdf_serialize(rdf, out, "nquads")
roundtrip <- rdf_parse(out, "nquads")
testthat::expect_is(roundtrip, "rdf")
rdf_free(roundtrip)
rdf_free(rdf)
})
testthat::test_that("we can add a namespace on serializing", {
rdf <- rdf_parse(doc)
rdf_serialize(rdf,
out,
namespace = "http://purl.org/dc/elements/1.1/",
prefix = "dc")
roundtrip <- rdf_parse(doc)
testthat::expect_is(roundtrip, "rdf")
rdf_free(rdf)
rdf_free(roundtrip)
})
################################################################
testthat::test_that("we can parse and serialize json-ld", {
rdf <- rdf_parse(doc)
rdf_serialize(rdf, "out.json")
roundtrip <- rdf_parse("out.json")
testthat::expect_is(roundtrip, "rdf")
rdf_serialize(rdf, "out.jsonld")
unlink("out.json")
unlink("out.jsonld")
rdf_free(roundtrip)
rdf_free(rdf)
})
testthat::test_that("we can parse and serialize nquads", {
rdf <- rdf_parse(doc)
rdf_serialize(rdf, "out.nquads")
roundtrip <- rdf_parse("out.nquads")
testthat::expect_is(roundtrip, "rdf")
unlink("nquads")
rdf_free(roundtrip)
rdf_free(rdf)
})
testthat::test_that("we can parse and serialize ntriples", {
rdf <- rdf_parse(doc)
rdf_serialize(rdf, "out.nt")
roundtrip <- rdf_parse("out.nt")
testthat::expect_is(roundtrip, "rdf")
unlink("out.nt")
rdf_serialize(rdf, "out.ntriples")
unlink("out.ntriples")
rdf_free(roundtrip)
rdf_free(rdf)
})
testthat::test_that("we can parse and serialize tutle", {
rdf <- rdf_parse(doc)
rdf_serialize(rdf, "out.ttl")
roundtrip <- rdf_parse("out.ttl")
testthat::expect_is(roundtrip, "rdf")
unlink("out.ttl")
rdf_serialize(rdf, "out.turtle")
unlink("out.turtle")
rdf_free(roundtrip)
rdf_free(rdf)
})
testthat::test_that("we can parse and serialize rdfxml", {
rdf <- rdf_parse(doc)
rdf_serialize(rdf, "out.rdf")
roundtrip <- rdf_parse("out.rdf")
testthat::expect_is(roundtrip, "rdf")
unlink("out.rdf")
rdf_serialize(rdf, "out.xml")
unlink("out.xml")
rdf_free(roundtrip)
rdf_free(rdf)
})
################################################################
testthat::test_that("we can parse by guessing on the file extension", {
ex <- system.file("extdata/person.nq", package="rdflib")
rdf <- rdf_parse(ex)
rdf_serialize(rdf, "tmp.nq", base = "http://schema.org/")
roundtrip <- rdf_parse("tmp.nq", "turtle")
testthat::expect_is(roundtrip, "rdf")
unlink("tmp.nq")
rdf_free(rdf)
})
testthat::test_that("we can serialize turtle with a baseUri", {
ex <- system.file("extdata/person.nq", package="rdflib")
rdf <- rdf_parse(ex, "nquads")
rdf_serialize(rdf, out, "turtle", base = "http://schema.org/")
roundtrip <- rdf_parse(out, "turtle")
testthat::expect_is(roundtrip, "rdf")
rdf_free(rdf)
})
## JSON-LD tests with default base uri
testthat::test_that("@id is not a URI, we should get localhost", {
ex <- '{
"@context": "http://schema.org/",
"@id": "person_id",
"name": "Jane Doe"
}'
rdf <- rdf_parse(ex, "jsonld")
testthat::expect_output(cat(format(rdf, "nquads")), "localhost")
rdf_free(rdf)
})
testthat::test_that("@id is a URI, we should not get localhost", {
ex <- '{
"@context": "http://schema.org/",
"@id": "uri:person_id",
"name": "Jane Doe"
}'
rdf <- rdf_parse(ex, "jsonld")
testthat::expect_false(grepl("localhost", format(rdf, "nquads")))
rdf_free(rdf)
})
testthat::test_that("we can alter the base URI", {
ex <- '{
"@id": "person_id",
"schema:name": "Jane Doe"
}'
options(rdf_base_uri = "http://example.com/")
rdf <- rdf_parse(ex, "jsonld")
testthat::expect_output(cat(format(rdf, "nquads")), "http://example.com")
rdf_free(rdf)
options(rdf_base_uri = "")
rdf <- rdf_parse(ex, "jsonld")
testthat::expect_length(rdf, 0)
rdf_free(rdf)
options(rdf_base_uri = NULL)
})
testthat::test_that("we can parse into an existing rdf model", {
rdf1 <- rdf_parse(system.file("extdata/ex.xml", package = "rdflib"))
rdf2 <- rdf_parse(system.file("extdata/ex2.xml", package = "rdflib"),
rdf = rdf1)
testthat::expect_is(rdf1, "rdf")
testthat::expect_is(rdf2, "rdf")
testthat::expect_identical(rdf1, rdf2)
rdf_free(rdf1)
## NOTE: rdf is same pointer as rdf1, not a new pointer. cannot free twice
})
testthat::test_that("we can parse from a url", {
# CRAN seems okay with tests requiring an internet connection
#testthat::skip_on_cran()
rdf <- rdf_parse("https://tinyurl.com/ycf95c9h")
testthat::expect_is(rdf, "rdf")
rdf_free(rdf)
})
testthat::test_that("we can parse from a text string", {
rdf <- rdf_parse(doc)
txt <- rdf_serialize(rdf, format = "rdfxml")
testthat::expect_is(txt, "character")
roundtrip <- rdf_parse(txt, format="rdfxml")
testthat::expect_is(roundtrip, "rdf")
rdf_free(rdf)
string <-
'
_:b0 <http://schema.org/jobTitle> "Professor" .
_:b0 <http://schema.org/name> "Jane Doe" .
_:b0 <http://schema.org/age> "35" .
_:b0 <http://schema.org/url> <http://www.janedoe.com> .
'
rdf <- rdf_parse(string, "nquads")
testthat::expect_is(rdf, "rdf")
rdf_free(rdf)
})
unlink(out)
|
