Nothing
test_that("redland library loads", {
library(redland)
# Add a line to this test to prevent 'Empty test' (skipped) msg.
expect_true(require(redland))
})
test_that("Node constructor", {
library(redland)
world <- new("World")
expect_false(is.null(world))
# Test creating a blank node
node <- new("Node", world)
expect_false(is.null(node))
expect_match(class(node), "Node")
expect_match(getNodeType(node), "blank")
# Test creating a blank node with librdf generated identifier
node <- new("Node", world, blank=NULL)
expect_match(class(node@librdf_node), "_p_librdf_node_s")
expect_match(getNodeType(node), "blank")
# Test creating a blank node with librdf generated identifier
node <- new("Node", world, blank="_:1234")
expect_match(class(node@librdf_node), "_p_librdf_node_s")
expect_match(getNodeType(node), "blank")
# Test creating a node with a literal value
node <- new("Node", world, "Fee Fi Fo Fum")
expect_match(class(node@librdf_node), "_p_librdf_node_s")
expect_match(getNodeType(node), "literal")
# err <- try(freeNode(node), silent=TRUE)
# expect_match(class(err), not("try-error"))
# Test creating a node with a literal value
node <- new("Node", world, literal="Fee Fi Fo Fum")
expect_match(class(node@librdf_node), "_p_librdf_node_s")
expect_match(getNodeType(node), "literal")
# Test creating a node with a URI value
node <- new("Node", world, uri="http://www.example.com/")
expect_match(class(node@librdf_node), "_p_librdf_node_s")
expect_match(getNodeType(node), "resource")
# Test that node creation fails if world is not provided or is null
err <- try(node <- new("Node", literal="Fee Fi Fo Fum"), silent=TRUE)
expect_match(class(err), "try-error")
err <- try(node <- new("Node", world=NULL, literal="Fee Fi Fo Fum"), silent=TRUE)
expect_match(class(err), "try-error")
# Test that node values can be assigned and retrieved
# a blank node is created with a unique identifier generated by librdf
node <- new("Node", world, blank=NULL)
expect_gt(nchar(getNodeValue(node)), 0)
# a blank node is created with the user specified identifier, i.e. "_:id1"
# THe blank node id will be returned as a string
node <- new("Node", world, blank="_:b1")
expect_match(getNodeValue(node), "_:b1")
# a node type of 'literal' is created
node <- new("Node", world, literal="A Node Value")
expect_match(getNodeValue(node), "A Node Value")
# a Node type of 'resource' is created
node <- new("Node", world, uri="http://www.example.com")
expect_match(getNodeValue(node), "http://www.example.com")
# Create a literal node without a language tag
node <- new("Node", world, literal="just plain text")
expect_match(getNodeValue(node), "just plain text")
node <- new("Node", world, literal="Jean Pierre Rampal", language="fr")
expect_match(getNodeValue(node), '\"Jean Pierre Rampal"@fr\"')
# Activate this check when testthat properly handles UTF-8 in tests. This
# test works fine from the command line on all platforms, but when testthat
# reads a test in, it is reading in the code as ASCII and ignoring the package
# encoding, therefor the test is not performed with the correct string.
#
# Create a literal node, specifying a language encoding
#node <- new("Node", world, literal="Gérard de La Martinière", language="fr")
#expect_match(getNodeValue(node), "\"Gérard de La Martinière\"@fr\"")
})
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