101 lines
3.3 KiB
Elixir
101 lines
3.3 KiB
Elixir
defmodule RDF.NTriples.EncoderTest do
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use ExUnit.Case, async: false
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alias RDF.NTriples
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doctest NTriples.Encoder
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alias RDF.Graph
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alias RDF.NS.XSD
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import RDF.Sigils
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import RDF.Test.Case, only: [stream_to_string: 1]
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use RDF.Vocabulary.Namespace
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defvocab EX, base_iri: "http://example.org/#", terms: [], strict: false
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test "stream_support?/0" do
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assert NTriples.Encoder.stream_support?()
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end
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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 NTriples.Encoder.encode!(Graph.new()) == ""
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end
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test "statements with IRIs only" do
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assert NTriples.Encoder.encode!(
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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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"""
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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/#p1> <http://example.org/#O2> .
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<http://example.org/#S1> <http://example.org/#p2> <http://example.org/#O3> .
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<http://example.org/#S2> <http://example.org/#p3> <http://example.org/#O4> .
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"""
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end
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test "statements with literals" do
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assert NTriples.Encoder.encode!(
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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.S1, EX.p2(), 42},
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{EX.S2, EX.p3(), RDF.literal("strange things", datatype: EX.custom())}
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])
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) ==
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"""
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<http://example.org/#S1> <http://example.org/#p1> "foo"@en .
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<http://example.org/#S1> <http://example.org/#p1> "foo" .
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<http://example.org/#S1> <http://example.org/#p2> "42"^^<#{XSD.integer()}> .
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<http://example.org/#S2> <http://example.org/#p3> "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 NTriples.Encoder.encode!(
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Graph.new([
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{EX.S1, EX.p1(), RDF.bnode(1)},
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{EX.S1, EX.p1(), RDF.bnode("foo")},
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{EX.S1, EX.p1(), RDF.bnode(:bar)}
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])
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) ==
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"""
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<http://example.org/#S1> <http://example.org/#p1> _:b1 .
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<http://example.org/#S1> <http://example.org/#p1> _:bar .
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<http://example.org/#S1> <http://example.org/#p1> _:foo .
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"""
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end
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end
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describe "stream/2" do
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graph =
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Graph.new([
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{EX.S1, EX.p1(), EX.O1},
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{EX.S2, EX.p2(), RDF.bnode("foo")},
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{EX.S3, EX.p3(), ~L"foo"},
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{EX.S3, EX.p3(), ~L"foo"en}
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])
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expected_result = """
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<http://example.org/#S1> <http://example.org/#p1> <http://example.org/#O1> .
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<http://example.org/#S2> <http://example.org/#p2> _:foo .
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<http://example.org/#S3> <http://example.org/#p3> "foo"@en .
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<http://example.org/#S3> <http://example.org/#p3> "foo" .
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"""
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assert NTriples.Encoder.stream(graph, mode: :string)
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|> stream_to_string() ==
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expected_result
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assert NTriples.Encoder.stream(graph, mode: :iodata)
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|> stream_to_string() ==
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expected_result
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end
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end
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