663 lines
21 KiB
Elixir
663 lines
21 KiB
Elixir
defmodule RDF.Turtle.EncoderTest do
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use ExUnit.Case, async: false
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alias RDF.Turtle
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doctest Turtle.Encoder
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alias RDF.Graph
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alias RDF.NS.{XSD, RDFS, OWL}
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import RDF.Sigils
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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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describe "serializing a graph" do
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test "an empty graph is serialized to an empty string" do
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assert Turtle.Encoder.encode!(Graph.new) == ""
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end
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test "statements with IRIs only" do
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assert Turtle.Encoder.encode!(Graph.new [
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{EX.S1, EX.p1, EX.O1},
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{EX.S1, EX.p1, EX.O2},
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{EX.S1, EX.p2, EX.O3},
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{EX.S2, EX.p3, EX.O4},
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]) ==
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"""
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<http://example.org/#S1>
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<http://example.org/#p1> <http://example.org/#O1>, <http://example.org/#O2> ;
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<http://example.org/#p2> <http://example.org/#O3> .
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<http://example.org/#S2>
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<http://example.org/#p3> <http://example.org/#O4> .
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"""
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end
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test "statements with prefixed names" do
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assert Turtle.Encoder.encode!(Graph.new([
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{EX.S1, EX.p1, EX.O1},
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{EX.S1, EX.p1, EX.O2},
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{EX.S1, EX.p2, EX.O3},
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{EX.S2, EX.p3, EX.O4},
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]), prefixes: %{
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ex: EX. __base_iri__,
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xsd: XSD. __base_iri__
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}) ==
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"""
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@prefix ex: <#{to_string(EX. __base_iri__)}> .
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@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
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ex:S1
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ex:p1 ex:O1, ex:O2 ;
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ex:p2 ex:O3 .
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ex:S2
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ex:p3 ex:O4 .
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"""
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end
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test "statements with empty prefixed names" do
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assert Turtle.Encoder.encode!(Graph.new({EX.S, EX.p, EX.O}),
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prefixes: %{"" => EX. __base_iri__}) ==
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"""
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@prefix : <#{to_string(EX. __base_iri__)}> .
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:S
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:p :O .
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"""
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end
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test "statements with literals" do
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assert Turtle.Encoder.encode!(Graph.new [
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{EX.S1, EX.p1, ~L"foo"},
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{EX.S1, EX.p1, ~L"foo"en},
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{EX.S2, EX.p2, RDF.literal("strange things", datatype: EX.custom)},
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]) ==
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"""
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<http://example.org/#S1>
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<http://example.org/#p1> "foo"@en, "foo" .
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<http://example.org/#S2>
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<http://example.org/#p2> "strange things"^^<#{EX.custom}> .
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"""
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end
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test "statements with blank nodes" do
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assert Turtle.Encoder.encode!(Graph.new [
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{EX.S1, EX.p1, [RDF.bnode(1), RDF.bnode("foo"), RDF.bnode(:bar)]},
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{EX.S2, EX.p1, [RDF.bnode(1), RDF.bnode("foo"), RDF.bnode(:bar)]},
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]) ==
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"""
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<http://example.org/#S1>
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<http://example.org/#p1> _:1, _:bar, _:foo .
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<http://example.org/#S2>
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<http://example.org/#p1> _:1, _:bar, _:foo .
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"""
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end
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test "ordering of descriptions" do
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assert Turtle.Encoder.encode!(Graph.new([
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{EX. __base_iri__, RDF.type, OWL.Ontology},
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{EX.S1, RDF.type, EX.O},
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{EX.S2, RDF.type, RDFS.Class},
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{EX.S3, RDF.type, RDF.Property},
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]),
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base: EX. __base_iri__,
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prefixes: %{
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rdf: RDF. __base_iri__,
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rdfs: RDFS. __base_iri__,
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owl: OWL. __base_iri__,
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}) ==
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"""
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@base <#{to_string(EX. __base_iri__)}> .
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@prefix rdf: <#{to_string(RDF. __base_iri__)}> .
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@prefix rdfs: <#{to_string(RDFS. __base_iri__)}> .
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@prefix owl: <#{to_string(OWL. __base_iri__)}> .
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<>
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a owl:Ontology .
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<S2>
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a rdfs:Class .
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<S1>
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a <O> .
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<S3>
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a rdf:Property .
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"""
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end
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end
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describe "prefixed_name/2" do
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setup do
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{:ok,
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prefixes: %{
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RDF.iri(EX. __base_iri__) => "ex",
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~I<http://example.org/> => "ex2"
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}
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}
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end
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test "hash iri with existing prefix", %{prefixes: prefixes} do
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assert Turtle.Encoder.prefixed_name(EX.foo, prefixes) ==
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"ex:foo"
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end
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test "hash iri namespace without name", %{prefixes: prefixes} do
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assert Turtle.Encoder.prefixed_name(RDF.iri(EX. __base_iri__), prefixes) ==
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"ex:"
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end
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test "hash iri with non-existing prefix" do
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refute Turtle.Encoder.prefixed_name(EX.foo, %{})
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end
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test "slash iri with existing prefix", %{prefixes: prefixes} do
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assert Turtle.Encoder.prefixed_name(~I<http://example.org/foo>, prefixes) ==
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"ex2:foo"
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end
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test "slash iri namespace without name", %{prefixes: prefixes} do
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assert Turtle.Encoder.prefixed_name(~I<http://example.org/>, prefixes) ==
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"ex2:"
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end
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test "slash iri with non-existing prefix" do
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refute Turtle.Encoder.prefixed_name(~I<http://example.org/foo>, %{})
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end
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end
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%{
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"full IRIs without base" => %{
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input: "<http://a/b> <http://a/c> <http://a/d> .",
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matches: [~r(<http://a/b>\s+<http://a/c>\s+<http://a/d>\s+\.)],
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},
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"relative IRIs with base" => %{
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input: "<http://a/b> <http://a/c> <http://a/d> .",
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matches: [ ~r(@base\s+<http://a/>\s+\.), ~r(<b>\s+<c>\s+<d>\s+\.)m],
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base: "http://a/"
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},
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"pname IRIs with prefix" => %{
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input: "<http://example.com/b> <http://example.com/c> <http://example.com/d> .",
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matches: [
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~r(@prefix\s+ex:\s+<http://example.com/>\s+\.),
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~r(ex:b\s+ex:c\s+ex:d\s+\.)
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],
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prefixes: %{ex: "http://example.com/"}
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},
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"pname IRIs with empty prefix" => %{
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input: "<http://example.com/b> <http://example.com/c> <http://example.com/d> .",
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matches: [
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~r(@prefix\s+:\s+<http://example.com/>\s+\.),
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~r(:b\s+:c\s+:d\s+\.)
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],
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prefixes: %{"" => "http://example.com/"}
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},
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"object list" => %{
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input: "@prefix ex: <http://example.com/> . ex:b ex:c ex:d, ex:e .",
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matches: [
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~r(@prefix\s+ex:\s+<http://example.com/>\s+\.),
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~r(ex:b\s+ex:c\s+ex:[de],\s++ex:[de]\s+\.)m,
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],
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prefixes: %{"ex" => "http://example.com/"}
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},
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"property list" => %{
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input: "@prefix ex: <http://example.com/> . ex:b ex:c ex:d; ex:e ex:f .",
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matches: [
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~r(@prefix\s+ex:\s+<http://example.com/>\s+\.),
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~r(ex:b\s+ex:c\s+ex:d\s+;),
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~r(\s++ex:e\s+ex:f\s+\.)
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],
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prefixes: %{"ex" => "http://example.com/"}
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},
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"reuses BNode labels by default" => %{
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input: "@prefix ex: <http://example.com/> . _:a ex:b _:a .",
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matches: [~r(\s*_:a\s+ex:b\s+_:a\s+\.)],
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prefixes: %{"ex" => "http://example.com/"}
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},
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"bare anon" => %{
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input: "@prefix ex: <http://example.com/> . [ex:a ex:b] .",
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matches: [~r(^\[\s*ex:a\s+ex:b\s\]\s+\.)m],
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prefixes: %{"ex" => "http://example.com/"}
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},
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"anon as subject" => %{
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input: "@prefix ex: <http://example.com/> . [ex:a ex:b] ex:c ex:d .",
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matches: [
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~r(\[\s*ex:a\s+ex:b\s*;)m,
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~r(\sex:c\s+ex:d\s*\]\s+\.)m
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],
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prefixes: %{"ex" => "http://example.com/"}
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},
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"anon as object" => %{
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input: "@prefix ex: <http://example.com/> . ex:a ex:b [ex:c ex:d] .",
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matches: [~r(ex:a\s+ex:b\s+\[\s*ex:c\s+ex:d\s*\]\s+\.)],
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neg_matches: [~r(_:\w+\s+\s*ex:c\s+ex:d\s+\.)],
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prefixes: %{"ex" => "http://example.com/"}
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},
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# "generated BNodes with :unique_bnodes" => %{
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# input: "@prefix ex: <http://example.com/> . _:a ex:b _:a .",
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# matches: [~r(^\s+*_:g\w+\s+ex:b\s+_:g\w+\s+\.$)],
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# unique_bnodes: true
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# },
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# "standard prefixes" => %{
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# input: """
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# <a> a <http://xmlns.com/foaf/0.1/Person>;
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# <http://purl.org/dc/terms/title> "Person" .
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# """,
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# matches: [
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# ~r(^@prefix foaf: <http://xmlns.com/foaf/0.1/> \.$),
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# ~r(^@prefix dc: <http://purl.org/dc/terms/> \.$),
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# ~r(^<a> a foaf:Person;$),
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# ~r(dc:title "Person" \.$),
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# ],
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# standard_prefixes: true, prefixes: %{}
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# }
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"order properties" => %{
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input: """
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@prefix ex: <http://example.com/> .
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@prefix dc: <http://purl.org/dc/elements/1.1/> .
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@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
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ex:b ex:c ex:d .
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ex:b dc:title "title" .
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ex:b a ex:class .
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ex:b rdfs:label "label" .
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""",
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matches: [
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~r(ex:b\s+a\s+ex:class\s*;)m,
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~r(ex:class\s*;\s+rdfs:label\s+"label")m,
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~r("label"\s*;\s++ex:c\s+ex:d)m,
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~r(ex:d\s*;\s+dc:title\s+"title"\s+\.)m
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],
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prefixes: %{
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"ex" => "http://example.com/",
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"dc" => "http://purl.org/dc/elements/1.1/",
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"rdfs" => "http://www.w3.org/2000/01/rdf-schema#",
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}
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},
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}
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|> Enum.each(fn {name, data} ->
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@tag data: data
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test name, %{data: data} do
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assert_serialization Turtle.read_string!(data.input), Keyword.new(data)
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end
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end)
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describe "lists" do
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test "should generate literal list" do
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Turtle.read_string!(
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~s[@prefix ex: <http://example.com/> . ex:a ex:b ( "apple" "banana" ) .]
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)
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|> assert_serialization(
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prefixes: %{ex: ~I<http://example.com/>},
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matches: [
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{~r[ex:a\s+ex:b\s+\("apple" "banana"\)\s+\.], "doesn't include the list as a Turtle list"}
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]
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)
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end
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test "should generate empty list" do
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Turtle.read_string!(
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~s[@prefix ex: <http://example.com/> . ex:a ex:b () .]
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)
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|> assert_serialization(
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prefixes: %{ex: ~I<http://example.com/>},
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matches: [
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{~r[ex:a\s+ex:b\s+\(\)\s+\.], "doesn't include the list as a Turtle list"}
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]
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)
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end
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test "should generate empty list as subject" do
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Turtle.read_string!(
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~s[@prefix ex: <http://example.com/> . () ex:a ex:b .]
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)
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|> assert_serialization(
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prefixes: %{ex: ~I<http://example.com/>},
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matches: [
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{~r[\(\)\s+ex:a\s+ex:b\s+\.], "doesn't include the list as a Turtle list"}
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]
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)
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end
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test "should generate list as subject" do
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Turtle.read_string!(
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~s[@prefix ex: <http://example.com/> . (ex:a) ex:b ex:c .]
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)
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|> assert_serialization(
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prefixes: %{ex: ~I<http://example.com/>},
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matches: [
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{~r[\(ex:a\)\s+ex:b\s+ex:c\s+\.], "doesn't include the list as a Turtle list"}
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]
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)
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end
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test "should generate list of empties" do
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graph = Turtle.read_string!(
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~s{@prefix ex: <http://example.com/> . [ex:listOf2Empties (() ())] .}
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)
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serialization =
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assert_serialization graph,
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prefixes: %{ex: ~I<http://example.com/>},
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matches: [
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{~r[\[\s*ex:listOf2Empties \(\(\) \(\)\)\s\]\s+\.], "doesn't include the list as a Turtle list"}
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]
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refute String.contains?(serialization, to_string(RDF.first)),
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~s[output\n\n#{serialization}\n\ncontains #{to_string(RDF.first)}]
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refute String.contains?(serialization, to_string(RDF.rest)),
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~s[output\n\n#{serialization}\n\ncontains #{to_string(RDF.rest)}]
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end
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test "should generate list anon" do
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Turtle.read_string!(
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~s{@prefix ex: <http://example.com/> . [ex:twoAnons ([a ex:mother] [a ex:father])] .}
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)
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|> assert_serialization(
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prefixes: %{ex: ~I<http://example.com/>},
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matches: [
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{~r[\[\s*ex:twoAnons \(\[\s*a ex:mother\s*\]\s+\[\s*a ex:father\s*\]\s*\)\s*\]\s+\.],
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"doesn't include the list as a Turtle list"}
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]
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)
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end
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# TODO: Why should this test from RDF.rb work? Why should the `a owl:Class` statements about the list nodes be ignored?
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# test "should generate owl:unionOf list" do
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# Turtle.read_string!("""
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# @prefix ex: <http://example.com/> .
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# @prefix owl: <http://www.w3.org/2002/07/owl#> .
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# @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
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# @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
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# ex:a rdfs:domain [
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# a owl:Class;
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# owl:unionOf [
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# a owl:Class;
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# rdf:first ex:b;
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# rdf:rest [
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# a owl:Class;
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# rdf:first ex:c;
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# rdf:rest rdf:nil
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# ]
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# ]
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# ] .
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# """)
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# |> assert_serialization(
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# prefixes: %{
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# ex: ~I<http://example.com/>,
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# rdf: RDF.NS.RDF. __base_iri__,
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# rdfs: RDFS. __base_iri__,
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# owl: OWL. __base_iri__,
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# },
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# matches: [
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# {~r[ex:a\s+rdfs:domain \[\s+a owl:Class;\s+owl:unionOf\s+\(ex:b\s+ex:c\)\s*\]\s*\.],
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# "doesn't include the list as a Turtle list"}
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# ]
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# )
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#
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# end
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test "when one of the list nodes is referenced in other statements the whole list is not represented as a Turtle list structure" do
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Graph.new(
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~B<Foo>
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|> RDF.first(EX.Foo)
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|> RDF.rest(~B<Bar>))
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|> Graph.add(
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~B<Bar>
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|> RDF.first(EX.Bar)
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|> RDF.rest(RDF.nil))
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|> Graph.add({EX.Baz, EX.quux, ~B<Bar>})
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|> assert_serialization(
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prefixes: %{ex: EX. __base_iri__},
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# TODO: provide a positive match
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neg_matches: [
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{~r[\(\s*ex:Foo\s+ex:Bar\s*\)], "does include the list as a Turtle list"}
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]
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)
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end
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test "when given an invalid list" do
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Graph.new(
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~B<Foo>
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|> RDF.first(1)
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|> RDF.rest(EX.Foo)
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)
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|> assert_serialization(
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prefixes: %{ex: ~I<http://example.com/>},
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# TODO: provide a positive match
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neg_matches: [
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{~r[\[\s*_:Foo \(\(\) \(\)\)\]\s+\.], "does include the invalid list as a Turtle list"}
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]
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)
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end
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end
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describe "literals" do
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test "plain literals with newlines embedded are encoded with long quotes" do
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Turtle.read_string!(
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~s[<http://a> <http:/b> """testing string parsing in Turtle.
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""" .]
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)
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|> assert_serialization(
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matches: [~s["""testing string parsing in Turtle.\n]]
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)
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end
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test "plain literals escaping" do
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Turtle.read_string!(
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~s[<http://a> <http:/b> """string with " escaped quote marks""" .]
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|
)
|
|
|> assert_serialization(
|
|
matches: [
|
|
~r[string with \\" escaped quote mark]
|
|
]
|
|
)
|
|
end
|
|
|
|
test "language tagged literals specifies language for literal with language" do
|
|
Turtle.read_string!(~s[<http://a> <http:/b> "string"@en .])
|
|
|> assert_serialization(matches: [~r["string"@en]])
|
|
end
|
|
|
|
test "typed literals" do
|
|
Turtle.read_string!(
|
|
~s[@prefix xsd: <http://www.w3.org/2001/XMLSchema#> . <http://a> <http:/b> "http://foo/"^^xsd:anyURI .]
|
|
)
|
|
|> assert_serialization(
|
|
matches: [
|
|
~r["http://foo/"\^\^<http://www.w3.org/2001/XMLSchema#anyURI> \.]
|
|
]
|
|
)
|
|
end
|
|
|
|
test "typed literals use declared prefixes" do
|
|
Turtle.read_string!(
|
|
~s[@prefix xsd: <http://www.w3.org/2001/XMLSchema#> . <http://a> <http:/b> "http://foo/"^^xsd:anyURI .]
|
|
)
|
|
|> assert_serialization(
|
|
matches: [
|
|
~r[@prefix xsd: <http://www.w3.org/2001/XMLSchema#> \.],
|
|
~r["http://foo/"\^\^xsd:anyURI \.]
|
|
],
|
|
prefixes: %{xsd: XSD. __base_iri__}
|
|
)
|
|
end
|
|
|
|
test "valid booleans" do
|
|
[
|
|
{true, "true ."},
|
|
{"true", "true ."},
|
|
{"TrUe", "true ."},
|
|
{"1", "true ."},
|
|
{false, "false ."},
|
|
{"false", "false ."},
|
|
{"FaLsE", "false ."},
|
|
{"0", "false ."},
|
|
]
|
|
|> Enum.each(fn {value, output} ->
|
|
Graph.new({EX.S, EX.p, RDF.Boolean.new(value)})
|
|
|> assert_serialization(matches: [output])
|
|
end)
|
|
end
|
|
|
|
test "invalid booleans" do
|
|
[
|
|
{"string", ~s{"string"^^<http://www.w3.org/2001/XMLSchema#boolean>}},
|
|
{"42", ~s{"42"^^<http://www.w3.org/2001/XMLSchema#boolean>}}
|
|
]
|
|
|> Enum.each(fn {value, output} ->
|
|
Graph.new({EX.S, EX.p, RDF.Boolean.new(value)})
|
|
|> assert_serialization(matches: [output])
|
|
end)
|
|
end
|
|
|
|
test "valid integers" do
|
|
[
|
|
{0, "0 ."},
|
|
{"0", "0 ."},
|
|
{1, "1 ."},
|
|
{"1", "1 ."},
|
|
{-1, "-1 ."},
|
|
{"-1", "-1 ."},
|
|
{10, "10 ."},
|
|
{"10", "10 ."},
|
|
{"0010", "10 ."},
|
|
]
|
|
|> Enum.each(fn {value, output} ->
|
|
Graph.new({EX.S, EX.p, RDF.Integer.new(value)})
|
|
|> assert_serialization(matches: [output])
|
|
end)
|
|
end
|
|
|
|
test "invalid integers" do
|
|
[
|
|
{"string", ~s{"string"^^<http://www.w3.org/2001/XMLSchema#integer>}},
|
|
{"true", ~s{"true"^^<http://www.w3.org/2001/XMLSchema#integer>}},
|
|
]
|
|
|> Enum.each(fn {value, output} ->
|
|
Graph.new({EX.S, EX.p, RDF.Integer.new(value)})
|
|
|> assert_serialization(matches: [output])
|
|
end)
|
|
end
|
|
|
|
test "valid decimals" do
|
|
[
|
|
{1.0, "1.0 ."},
|
|
{"1.0", "1.0 ."},
|
|
{0.1, "0.1 ."},
|
|
{"0.1", "0.1 ."},
|
|
{-1, "-1.0 ."},
|
|
{"-1", "-1.0 ."},
|
|
{10.02, "10.02 ."},
|
|
{"10.02", "10.02 ."},
|
|
{"010.020", "10.02 ."},
|
|
]
|
|
|> Enum.each(fn {value, output} ->
|
|
Graph.new({EX.S, EX.p, RDF.Literal.new(value, datatype: XSD.decimal)})
|
|
|> assert_serialization(matches: [output])
|
|
end)
|
|
end
|
|
|
|
test "invalid decimals" do
|
|
[
|
|
{"string", ~s{"string"^^<http://www.w3.org/2001/XMLSchema#decimal>}},
|
|
{"true", ~s{"true"^^<http://www.w3.org/2001/XMLSchema#decimal>}},
|
|
]
|
|
|> Enum.each(fn {value, output} ->
|
|
Graph.new({EX.S, EX.p, RDF.Literal.new(value, datatype: XSD.decimal)})
|
|
|> assert_serialization(matches: [output])
|
|
end)
|
|
end
|
|
|
|
test "valid doubles" do
|
|
[
|
|
{1.0e1, "1.0E1 ."},
|
|
{"1.0e1", "1.0E1 ."},
|
|
{0.1e1, "1.0E0 ."},
|
|
{"0.1e1", "1.0E0 ."},
|
|
{10.02e1, "1.002E2 ."},
|
|
{"10.02e1", "1.002E2 ."},
|
|
{"010.020", "1.002E1 ."},
|
|
{14, "1.4E1 ."},
|
|
{-1, "-1.0E0 ."},
|
|
{"-1", "-1.0E0 ."},
|
|
]
|
|
|> Enum.each(fn {value, output} ->
|
|
Graph.new({EX.S, EX.p, RDF.Double.new(value)})
|
|
|> assert_serialization(matches: [output])
|
|
end)
|
|
end
|
|
|
|
test "invalid doubles" do
|
|
[
|
|
{"string", ~s{"string"^^<http://www.w3.org/2001/XMLSchema#double>}},
|
|
{"true", ~s{"true"^^<http://www.w3.org/2001/XMLSchema#double>}},
|
|
]
|
|
|> Enum.each(fn {value, output} ->
|
|
Graph.new({EX.S, EX.p, RDF.Double.new(value)})
|
|
|> assert_serialization(matches: [output])
|
|
end)
|
|
end
|
|
end
|
|
|
|
|
|
describe "W3C test suite roundtrip" do
|
|
@tag skip: "TODO: We need a Graph isomorphism comparison to implement this."
|
|
test "..."
|
|
end
|
|
|
|
|
|
defp assert_serialization(graph, opts) do
|
|
with prefixes = Keyword.get(opts, :prefixes, %{}),
|
|
base = Keyword.get(opts, :base),
|
|
matches = Keyword.get(opts, :matches, []),
|
|
neg_matches = Keyword.get(opts, :neg_matches, [])
|
|
do
|
|
assert {:ok, serialized} =
|
|
Turtle.write_string(graph, prefixes: prefixes, base: base)
|
|
|
|
matches
|
|
|> Stream.map(fn
|
|
{pattern, message} ->
|
|
{pattern, ~s[output\n\n#{serialized}\n\n#{message}]}
|
|
pattern ->
|
|
{pattern, ~s[output\n\n#{serialized}\n\ndoesn't include #{inspect pattern}]}
|
|
end)
|
|
|> Enum.each(fn
|
|
{%Regex{} = pattern, message} ->
|
|
assert Regex.match?(pattern, serialized), message
|
|
{contents, message} ->
|
|
assert String.contains?(serialized, contents), message
|
|
end)
|
|
|
|
neg_matches
|
|
|> Stream.map(fn
|
|
{pattern, message} ->
|
|
{pattern, ~s[output\n\n#{serialized}\n\n#{message}]}
|
|
pattern ->
|
|
{pattern, ~s[output\n\n#{serialized}\n\ndoes include #{inspect pattern}]}
|
|
end)
|
|
|> Enum.each(fn
|
|
{%Regex{} = pattern, message} ->
|
|
refute Regex.match?(pattern, serialized), message
|
|
{contents, message} ->
|
|
refute String.contains?(serialized, contents), message
|
|
end)
|
|
|
|
serialized
|
|
end
|
|
end
|
|
end
|