rdf-ex/test/unit/nquads_decoder_test.exs

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defmodule RDF.NQuads.DecoderTest do
use ExUnit.Case, async: false
doctest RDF.NQuads.Decoder
alias RDF.Dataset
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import RDF.Sigils
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use RDF.Vocabulary.Namespace
defvocab EX,
base_uri: "http://example.org/#",
terms: [], strict: false
defvocab P,
base_uri: "http://www.perceive.net/schemas/relationship/",
terms: [], strict: false
test "an empty string is deserialized to an empty graph" do
assert RDF.NQuads.Decoder.decode!("") == Dataset.new
assert RDF.NQuads.Decoder.decode!(" \n\r\r\n ") == Dataset.new
end
test "decoding comments" do
assert RDF.NQuads.Decoder.decode!("# just a comment") == Dataset.new
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S> <http://example.org/#p> _:1 <http://example.org/#G>. # a comment
""") == Dataset.new({EX.S, EX.p, RDF.bnode("1"), EX.G})
assert RDF.NQuads.Decoder.decode!("""
# a comment
<http://example.org/#S> <http://example.org/#p> <http://example.org/#O> <http://example.org/#G>.
""") == Dataset.new({EX.S, EX.p, EX.O, EX.G})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S> <http://example.org/#p> <http://example.org/#O> <http://example.org/#G>.
# a comment
""") == Dataset.new({EX.S, EX.p, EX.O, EX.G})
assert RDF.NQuads.Decoder.decode!("""
# Header line 1
# Header line 2
<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> <http://example.org/#G> .
# 1st comment
<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O2> . # 2nd comment
# last comment
""") == Dataset.new([
{EX.S1, EX.p1, EX.O1, EX.G},
{EX.S1, EX.p2, EX.O2},
])
end
test "empty lines" do
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/enemyOf> <http://example.org/#green_goblin> <http://example.org/graphs/spiderman> .
""") == Dataset.new({EX.spiderman, P.enemyOf, EX.green_goblin, ~I<http://example.org/graphs/spiderman>})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/enemyOf> <http://example.org/#green_goblin> <http://example.org/graphs/spiderman> .
""") == Dataset.new({EX.spiderman, P.enemyOf, EX.green_goblin, ~I<http://example.org/graphs/spiderman>})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> .
<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O2> <http://example.org/#G> .
""") == Dataset.new([
{EX.S1, EX.p1, EX.O1},
{EX.S1, EX.p2, EX.O2, EX.G},
])
end
test "decoding a single statement with uris" do
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/enemyOf> <http://example.org/#green_goblin> .
""") == Dataset.new({EX.spiderman, P.enemyOf, EX.green_goblin})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/enemyOf> <http://example.org/#green_goblin> <http://example.org/graphs/spiderman>.
""") == Dataset.new({EX.spiderman, P.enemyOf, EX.green_goblin, ~I<http://example.org/graphs/spiderman>})
end
test "decoding a single statement with a blank node" do
assert RDF.NQuads.Decoder.decode!("""
_:foo <http://example.org/#p> <http://example.org/#O> <http://example.org/#G> .
""") == Dataset.new({RDF.bnode("foo"), EX.p, EX.O, EX.G})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S> <http://example.org/#p> _:1 <http://example.org/#G> .
""") == Dataset.new({EX.S, EX.p, RDF.bnode("1"), EX.G})
assert RDF.NQuads.Decoder.decode!("""
_:foo <http://example.org/#p> _:bar <http://example.org/#G> .
""") == Dataset.new({RDF.bnode("foo"), EX.p, RDF.bnode("bar"), EX.G})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S> <http://example.org/#p> _:1 _:G .
""") == Dataset.new({EX.S, EX.p, RDF.bnode("1"), RDF.bnode("G")})
end
test "decoding a single statement with an untyped string literal" do
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/realname> "Peter Parker" <http://example.org/#G> .
""") == Dataset.new({EX.spiderman, P.realname, RDF.literal("Peter Parker"), EX.G})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/realname> "Peter Parker" .
""") == Dataset.new({EX.spiderman, P.realname, RDF.literal("Peter Parker")})
end
test "decoding a single statement with a typed literal" do
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#spiderman> <http://example.org/#p> "42"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/#G> .
""") == Dataset.new({EX.spiderman, EX.p, RDF.literal(42), EX.G})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#spiderman> <http://example.org/#p> "42"^^<http://www.w3.org/2001/XMLSchema#integer> .
""") == Dataset.new({EX.spiderman, EX.p, RDF.literal(42)})
end
test "decoding a single statement with a language tagged literal" do
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S> <http://example.org/#p> "foo"@en <http://example.org/#G> .
""") == Dataset.new({EX.S, EX.p, RDF.literal("foo", language: "en"), EX.G})
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S> <http://example.org/#p> "foo"@en .
""") == Dataset.new({EX.S, EX.p, RDF.literal("foo", language: "en")})
end
test "decoding multiple statements" do
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> <http://example.org/#G> .
<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O2> <http://example.org/#G> .
""") == Dataset.new([
{EX.S1, EX.p1, EX.O1, EX.G},
{EX.S1, EX.p2, EX.O2, EX.G},
])
assert RDF.NQuads.Decoder.decode!("""
<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> <http://example.org/#G> .
<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O2> <http://example.org/#G> .
<http://example.org/#S2> <http://example.org/#p3> <http://example.org/#O3> <http://example.org/#G> .
<http://example.org/#S2> <http://example.org/#p3> <http://example.org/#O3> .
""") == Dataset.new([
{EX.S1, EX.p1, EX.O1, EX.G},
{EX.S1, EX.p2, EX.O2, EX.G},
{EX.S2, EX.p3, EX.O3, EX.G},
{EX.S2, EX.p3, EX.O3}
])
end
end