405 lines
14 KiB
Elixir
405 lines
14 KiB
Elixir
defmodule RDF.Turtle.DecoderTest do
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use ExUnit.Case, async: false
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doctest RDF.Turtle.Decoder
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import RDF.Sigils
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alias RDF.{Turtle, Graph}
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alias RDF.NS.{XSD}
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use RDF.Vocabulary.Namespace
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defvocab EX,
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base_iri: "http://example.org/#",
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terms: [], strict: false
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defvocab P,
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base_iri: "http://www.perceive.net/schemas/relationship/",
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terms: [], strict: false
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test "an empty string is deserialized to an empty graph" do
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assert Turtle.Decoder.decode!("") == Graph.new
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assert Turtle.Decoder.decode!(" \n\r\r\n ") == Graph.new
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end
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test "comments" do
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assert Turtle.Decoder.decode!("# just a comment") == Graph.new
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S> <http://example.org/#p> _:1 . # a comment
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""") == Graph.new({EX.S, EX.p, RDF.bnode("1")})
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assert Turtle.Decoder.decode!("""
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# a comment
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<http://example.org/#S> <http://example.org/#p> <http://example.org/#O> .
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""") == Graph.new({EX.S, EX.p, EX.O})
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S> <http://example.org/#p> <http://example.org/#O> .
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# a comment
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""") == Graph.new({EX.S, EX.p, EX.O})
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assert Turtle.Decoder.decode!("""
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# Header line 1
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# Header line 2
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<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> .
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# 1st comment
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<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O2> . # 2nd comment
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# last comment
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""") == Graph.new([
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{EX.S1, EX.p1, EX.O1},
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{EX.S1, EX.p2, EX.O2},
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])
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end
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test "empty lines" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/enemyOf> <http://example.org/#green_goblin> .
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""") == Graph.new({EX.spiderman, P.enemyOf, EX.green_goblin})
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assert Turtle.Decoder.decode!("""
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<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/enemyOf> <http://example.org/#green_goblin> .
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""") == Graph.new({EX.spiderman, P.enemyOf, EX.green_goblin})
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> .
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<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O2> .
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""") == Graph.new([
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{EX.S1, EX.p1, EX.O1},
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{EX.S1, EX.p2, EX.O2},
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])
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end
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describe "statements" do
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test "a N-Triple-style statement" do
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assert Turtle.Decoder.decode!(
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"<http://example.org/#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://example.org/#Person> ."
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) == Graph.new({EX.Aaron, RDF.type, EX.Person})
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end
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test "a statement with the 'a' keyword" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Aaron> a <http://example.org/#Person> .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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end
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test "multiple N-Triple-style statement" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> .
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<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O2> .
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""") == Graph.new([
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{EX.S1, EX.p1, EX.O1},
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{EX.S1, EX.p2, EX.O2},
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])
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> .
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<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O2> .
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<http://example.org/#S2> <http://example.org/#p3> <http://example.org/#O3> .
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""") == Graph.new([
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{EX.S1, EX.p1, EX.O1},
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{EX.S1, EX.p2, EX.O2},
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{EX.S2, EX.p3, EX.O3}
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])
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end
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test "statement with multiple objects" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> "baz", 1, true .
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""") == Graph.new([
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{EX.Foo, EX.bar, "baz"},
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{EX.Foo, EX.bar, 1},
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{EX.Foo, EX.bar, true},
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])
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end
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test "statement with multiple predications" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> "baz";
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<http://example.org/#baz> 42 .
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""") == Graph.new([
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{EX.Foo, EX.bar, "baz"},
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{EX.Foo, EX.baz, 42},
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])
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end
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end
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describe "blank node property lists" do
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test "blank node property list on object position" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> [ <http://example.org/#baz> 42 ] .
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""") == Graph.new([
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{EX.Foo, EX.bar, RDF.bnode("b0")},
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{RDF.bnode("b0"), EX.baz, 42},
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])
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end
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test "blank node property list on subject position" do
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assert Turtle.Decoder.decode!("""
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[ <http://example.org/#baz> 42 ] <http://example.org/#bar> false .
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""") == Graph.new([
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{RDF.bnode("b0"), EX.baz, 42},
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{RDF.bnode("b0"), EX.bar, false},
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])
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end
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test "a single blank node property list" do
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assert Turtle.Decoder.decode!("[ <http://example.org/#foo> 42 ] .") ==
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Graph.new([{RDF.bnode("b0"), EX.foo, 42}])
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end
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test "nested blank node property list" do
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assert Turtle.Decoder.decode!("""
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[ <http://example.org/#p1> [ <http://example.org/#p2> <http://example.org/#o2> ] ; <http://example.org/#p> <http://example.org/#o> ].
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""") == Graph.new([
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{RDF.bnode("b0"), EX.p1, RDF.bnode("b1")},
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{RDF.bnode("b1"), EX.p2, EX.o2},
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{RDF.bnode("b0"), EX.p, EX.o},
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])
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end
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test "blank node via []" do
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assert Turtle.Decoder.decode!("""
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[] <http://xmlns.com/foaf/0.1/name> "Aaron Swartz" .
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""") == Graph.new({RDF.bnode("b0"), ~I<http://xmlns.com/foaf/0.1/name>, "Aaron Swartz"})
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> [] .
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""") == Graph.new({EX.Foo, EX.bar, RDF.bnode("b0")})
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> [ ] .
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""") == Graph.new({EX.Foo, EX.bar, RDF.bnode("b0")})
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end
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end
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test "blank node" do
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assert Turtle.Decoder.decode!("""
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_:foo <http://example.org/#p> <http://example.org/#O> .
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""") == Graph.new({RDF.bnode("foo"), EX.p, EX.O})
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S> <http://example.org/#p> _:1 .
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""") == Graph.new({EX.S, EX.p, RDF.bnode("1")})
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assert Turtle.Decoder.decode!("""
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_:foo <http://example.org/#p> _:bar .
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""") == Graph.new({RDF.bnode("foo"), EX.p, RDF.bnode("bar")})
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end
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describe "quoted literals" do
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test "an untyped string literal" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/realname> "Peter Parker" .
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""") == Graph.new({EX.spiderman, P.realname, RDF.literal("Peter Parker")})
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end
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test "an untyped long quoted string literal" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#spiderman> <http://www.perceive.net/schemas/relationship/realname> '''Peter Parker''' .
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""") == Graph.new({EX.spiderman, P.realname, RDF.literal("Peter Parker")})
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end
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test "a typed literal" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#spiderman> <http://example.org/#p> "42"^^<http://www.w3.org/2001/XMLSchema#integer> .
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""") == Graph.new({EX.spiderman, EX.p, RDF.literal(42)})
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end
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test "a typed literal with type as a prefixed name" do
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assert Turtle.Decoder.decode!("""
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PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
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<http://example.org/#spiderman> <http://example.org/#p> "42"^^xsd:integer .
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""") == Graph.new({EX.spiderman, EX.p, RDF.literal(42)})
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end
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test "a language tagged literal" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S> <http://example.org/#p> "foo"@en .
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""") == Graph.new({EX.S, EX.p, RDF.literal("foo", language: "en")})
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end
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test "a '@prefix' or '@base' language tagged literal" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S> <http://example.org/#p> "foo"@prefix .
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""") == Graph.new({EX.S, EX.p, RDF.literal("foo", language: "prefix")})
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assert Turtle.Decoder.decode!("""
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<http://example.org/#S> <http://example.org/#p> "foo"@base .
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""") == Graph.new({EX.S, EX.p, RDF.literal("foo", language: "base")})
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end
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end
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describe "shorthand literals" do
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test "boolean" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> true .
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""") == Graph.new({EX.Foo, EX.bar, RDF.Boolean.new(true)})
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> false .
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""") == Graph.new({EX.Foo, EX.bar, RDF.Boolean.new(false)})
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end
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test "integer" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> 42 .
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""") == Graph.new({EX.Foo, EX.bar, RDF.Integer.new(42)})
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end
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test "decimal" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> 3.14 .
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""") == Graph.new({EX.Foo, EX.bar, RDF.Literal.new("3.14", datatype: XSD.decimal)})
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end
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test "double" do
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assert Turtle.Decoder.decode!("""
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<http://example.org/#Foo> <http://example.org/#bar> 1.2e3 .
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""") == Graph.new({EX.Foo, EX.bar, RDF.Double.new("1.2e3")})
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end
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end
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describe "prefixed names" do
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test "non-empty prefixed names" do
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assert Turtle.Decoder.decode!("""
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@prefix ex: <http://example.org/#> .
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ex:Aaron <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ex:Person .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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assert Turtle.Decoder.decode!("""
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@prefix ex: <http://example.org/#> .
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ex:Aaron <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ex:Person .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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assert Turtle.Decoder.decode!("""
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PREFIX ex: <http://example.org/#>
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ex:Aaron <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ex:Person .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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assert Turtle.Decoder.decode!("""
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prefix ex: <http://example.org/#>
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ex:Aaron <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ex:Person .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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end
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test "empty prefixed name" do
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assert Turtle.Decoder.decode!("""
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@prefix : <http://example.org/#> .
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:Aaron <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> :Person .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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assert Turtle.Decoder.decode!("""
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PREFIX : <http://example.org/#>
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:Aaron <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> :Person .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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end
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end
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describe "collections" do
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test "non-empty collection" do
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assert Turtle.Decoder.decode!("""
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@prefix : <http://example.org/#> .
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:subject :predicate ( :a :b :c ) .
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""") == Graph.new([
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{EX.subject, EX.predicate, RDF.bnode("b0")},
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{RDF.bnode("b0"), RDF.first, EX.a},
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{RDF.bnode("b0"), RDF.rest, RDF.bnode("b1")},
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{RDF.bnode("b1"), RDF.first, EX.b},
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{RDF.bnode("b1"), RDF.rest, RDF.bnode("b2")},
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{RDF.bnode("b2"), RDF.first, EX.c},
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{RDF.bnode("b2"), RDF.rest, RDF.nil},
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])
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end
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test "empty collection" do
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assert Turtle.Decoder.decode!("""
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@prefix : <http://example.org/#> .
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:subject :predicate () .
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""") == Graph.new({EX.subject, EX.predicate, RDF.nil})
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end
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test "nested collection" do
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assert Turtle.Decoder.decode!("""
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@prefix : <http://example.org/#> .
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:subject :predicate ( :a (:b :c) ) .
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""") == Graph.new([
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{EX.subject, EX.predicate, RDF.bnode("b0")},
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{RDF.bnode("b0"), RDF.first, EX.a},
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{RDF.bnode("b0"), RDF.rest, RDF.bnode("b3")},
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{RDF.bnode("b3"), RDF.first, RDF.bnode("b1")},
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{RDF.bnode("b3"), RDF.rest, RDF.nil},
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{RDF.bnode("b1"), RDF.first, EX.b},
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{RDF.bnode("b1"), RDF.rest, RDF.bnode("b2")},
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{RDF.bnode("b2"), RDF.first, EX.c},
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{RDF.bnode("b2"), RDF.rest, RDF.nil},
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])
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end
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end
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describe "relative IRIs" do
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test "without explicit in-doc base and no document_base option option given" do
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assert_raise RuntimeError, fn ->
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Turtle.Decoder.decode!(
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"<#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <#Person> .")
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end
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end
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test "without explicit in-doc base, but document_base option given" do
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assert Turtle.Decoder.decode!("""
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<#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <#Person> .
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""", base: "http://example.org/") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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end
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test "with @base given" do
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assert Turtle.Decoder.decode!("""
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@base <http://example.org/> .
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<#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <#Person> .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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assert Turtle.Decoder.decode!("""
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@base <http://example.org/#> .
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<#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <#Person> .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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end
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test "with BASE given" do
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assert Turtle.Decoder.decode!("""
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BASE <http://example.org/>
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<#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <#Person> .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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assert Turtle.Decoder.decode!("""
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base <http://example.org/#>
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<#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <#Person> .
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""") == Graph.new({EX.Aaron, RDF.type, EX.Person})
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end
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test "when a given base is itself relative" do
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assert_raise RuntimeError, fn ->
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Turtle.Decoder.decode!("""
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@base <foo> .
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<#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <#Person> .
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""")
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end
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assert_raise RuntimeError, fn ->
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Turtle.Decoder.decode!(
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"<#Aaron> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <#Person> .",
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base: "foo")
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end
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end
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end
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end
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