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require "test_helper"
class PipelineTest < Minitest::Spec
Song = Struct.new(:title, :artist)
Artist = Struct.new(:name)
Album = Struct.new(:ratings, :artists)
R = Representable
P = R::Pipeline
Getter = ->(input, options) { "Yo" }
StopOnNil = ->(input, options) { input }
SkipRender = ->(input, *) { input == "Yo" ? input : P::Stop }
Prepare = ->(input, options) { "Prepare(#{input})" }
Deserialize = ->(input, options) { "Deserialize(#{input}, #{options[:fragment]})" }
SkipParse = ->(input, options) { input }
CreateObject = ->(input, options) { OpenStruct.new }
Setter = ->(input, options) { "Setter(#{input})" }
AssignFragment = ->(input, options) { options[:fragment] = input }
it "linear" do
P[SkipParse, Setter].("doc", {fragment: 1}).must_equal "Setter(doc)"
# parse style.
P[AssignFragment, SkipParse, CreateObject, Prepare].("Bla", {}).must_equal "Prepare(#<OpenStruct>)"
# render style.
P[Getter, StopOnNil, SkipRender, Prepare, Setter].(nil, {}).
must_equal "Setter(Prepare(Yo))"
# pipeline = Representable::Pipeline[SkipParse , SetResult, ModifyResult]
# pipeline.(fragment: "yo!").must_equal "modified object from yo!"
end
Stopping = ->(input, options) { return P::Stop if options[:fragment] == "stop!"; input }
it "stopping" do
pipeline = Representable::Pipeline[SkipParse, Stopping, Prepare]
pipeline.(nil, fragment: "oy!").must_equal "Prepare()"
pipeline.(nil, fragment: "stop!").must_equal Representable::Pipeline::Stop
end
describe "Collect" do
Reverse = ->(input, options) { input.reverse }
Add = ->(input, options) { "#{input}+" }
let(:pipeline) { R::Collect[Reverse, Add] }
it { pipeline.(["yo!", "oy!"], {}).must_equal ["!oy+", "!yo+"] }
describe "Pipeline with Collect" do
let(:pipeline) { P[Reverse, R::Collect[Reverse, Add]] }
it { pipeline.(["yo!", "oy!"], {}).must_equal ["!yo+", "!oy+"] }
end
end
######### scalar property
let(:title) {
dfn = R::Definition.new(:title)
R::Hash::Binding.new(dfn)
}
it "rendering scalar property" do
doc = {}
P[
R::GetValue,
R::StopOnSkipable,
R::AssignName,
R::WriteFragment
].(nil, {represented: Song.new("Lime Green"), binding: title, doc: doc}).must_equal "Lime Green"
doc.must_equal({"title"=>"Lime Green"})
end
it "parsing scalar property" do
P[
R::AssignName,
R::ReadFragment,
R::StopOnNotFound,
R::OverwriteOnNil,
# R::SkipParse,
R::SetValue,
].extend(P::Debug).(doc={"title"=>"Eruption"}, {represented: song=Song.new("Lime Green"), binding: title, doc: doc}).must_equal "Eruption"
song.title.must_equal "Eruption"
end
module ArtistRepresenter
include Representable::Hash
property :name
end
let(:artist) {
dfn = R::Definition.new(:artist, extend: ArtistRepresenter, class: Artist)
R::Hash::Binding.new(dfn)
}
let(:song_model) { Song.new("Lime Green", Artist.new("Diesel Boy")) }
it "rendering typed property" do
doc = {}
P[
R::GetValue,
R::StopOnSkipable,
R::StopOnNil,
R::Decorate,
R::Serialize,
R::AssignName,
R::WriteFragment
].extend(P::Debug).(nil, {represented: song_model, binding: artist, doc: doc, options: {}}).must_equal({"name" => "Diesel Boy"})
doc.must_equal({"artist"=>{"name"=>"Diesel Boy"}})
end
it "parsing typed property" do
P[
R::AssignName,
R::ReadFragment,
R::StopOnNotFound,
R::OverwriteOnNil,
R::AssignFragment,
R::CreateObject::Class,
R::Decorate,
R::Deserialize,
R::SetValue,
].extend(P::Debug).(doc={"artist"=>{"name"=>"Doobie Brothers"}}, {represented: song_model, binding: artist, doc: doc, options: {}}).must_equal model=Artist.new("Doobie Brothers")
song_model.artist.must_equal model
end
######### collection :ratings
let(:ratings) {
dfn = R::Definition.new(:ratings, collection: true, skip_render: ->(*) { false })
R::Hash::Binding::Collection.new(dfn)
}
it "render scalar collection" do
doc = {}
P[
R::GetValue,
R::StopOnSkipable,
R::Collect[
R::SkipRender,
],
R::AssignName,
R::WriteFragment
].extend(P::Debug).(nil, {represented: Album.new([1,2,3]), binding: ratings, doc: doc, options: {}}).must_equal([1,2,3])
doc.must_equal({"ratings"=>[1,2,3]})
end
######### collection :songs, extend: SongRepresenter
let(:artists) {
dfn = R::Definition.new(:artists, collection: true, extend: ArtistRepresenter, class: Artist)
R::Hash::Binding::Collection.new(dfn)
}
it "render typed collection" do
doc = {}
P[
R::GetValue,
R::StopOnSkipable,
R::Collect[
R::Decorate,
R::Serialize,
],
R::AssignName,
R::WriteFragment
].extend(P::Debug).(nil, {represented: Album.new(nil, [Artist.new("Diesel Boy"), Artist.new("Van Halen")]), binding: artists, doc: doc, options: {}}).must_equal([{"name"=>"Diesel Boy"}, {"name"=>"Van Halen"}])
doc.must_equal({"artists"=>[{"name"=>"Diesel Boy"}, {"name"=>"Van Halen"}]})
end
let(:album_model) { Album.new(nil, [Artist.new("Diesel Boy"), Artist.new("Van Halen")]) }
it "parse typed collection" do
doc = {"artists"=>[{"name"=>"Diesel Boy"}, {"name"=>"Van Halen"}]}
P[
R::AssignName,
R::ReadFragment,
R::StopOnNotFound,
R::OverwriteOnNil,
# R::SkipParse,
R::Collect[
R::AssignFragment,
R::CreateObject::Class,
R::Decorate,
R::Deserialize,
],
R::SetValue,
].extend(P::Debug).(doc, {represented: album_model, binding: artists, doc: doc, options: {}}).must_equal([Artist.new("Diesel Boy"), Artist.new("Van Halen")])
album_model.artists.must_equal([Artist.new("Diesel Boy"), Artist.new("Van Halen")])
end
# TODO: test with arrays, too, not "only" Pipeline instances.
describe "#Insert Pipeline[], Function, replace: OldFunction" do
let(:pipeline) { P[R::GetValue, R::StopOnSkipable, R::StopOnNil] }
it "returns Pipeline instance when passing in Pipeline instance" do
P::Insert.(pipeline, R::Default, replace: R::StopOnSkipable).must_be_instance_of(R::Pipeline)
end
it "replaces if exists" do
# pipeline.insert!(R::Default, replace: R::StopOnSkipable)
P::Insert.(pipeline, R::Default, replace: R::StopOnSkipable).must_equal P[R::GetValue, R::Default, R::StopOnNil]
pipeline.must_equal P[R::GetValue, R::StopOnSkipable, R::StopOnNil]
end
it "replaces Function instance" do
pipeline = P[R::Prepare, R::StopOnSkipable, R::StopOnNil]
P::Insert.(pipeline, R::Default, replace: R::Prepare).must_equal P[R::Default, R::StopOnSkipable, R::StopOnNil]
pipeline.must_equal P[R::Prepare, R::StopOnSkipable, R::StopOnNil]
end
it "does not replace when not existing" do
P::Insert.(pipeline, R::Default, replace: R::Prepare)
pipeline.must_equal P[R::GetValue, R::StopOnSkipable, R::StopOnNil]
end
it "applies on nested Collect" do
pipeline = P[R::GetValue, R::Collect[R::GetValue, R::StopOnSkipable], R::StopOnNil]
P::Insert.(pipeline, R::Default, replace: R::StopOnSkipable).extend(P::Debug).inspect.must_equal "Pipeline[GetValue, Collect[GetValue, Default], StopOnNil]"
pipeline.must_equal P[R::GetValue, R::Collect[R::GetValue, R::StopOnSkipable], R::StopOnNil]
P::Insert.(pipeline, R::Default, replace: R::StopOnNil).extend(P::Debug).inspect.must_equal "Pipeline[GetValue, Collect[GetValue, StopOnSkipable], Default]"
end
it "applies on nested Collect with Function::CreateObject" do
pipeline = P[R::GetValue, R::Collect[R::GetValue, R::CreateObject], R::StopOnNil]
P::Insert.(pipeline, R::Default, replace: R::CreateObject).extend(P::Debug).inspect.must_equal "Pipeline[GetValue, Collect[GetValue, Default], StopOnNil]"
pipeline.must_equal P[R::GetValue, R::Collect[R::GetValue, R::CreateObject], R::StopOnNil]
end
end
describe "Insert.(delete: true)" do
let(:pipeline) { P[R::GetValue, R::StopOnNil] }
it do
P::Insert.(pipeline, R::GetValue, delete: true).extend(P::Debug).inspect.must_equal "Pipeline[StopOnNil]"
pipeline.extend(P::Debug).inspect.must_equal "Pipeline[GetValue, StopOnNil]"
end
end
describe "Insert.(delete: true) with Collect" do
let(:pipeline) { P[R::GetValue, R::Collect[R::GetValue, R::StopOnSkipable], R::StopOnNil] }
it do
P::Insert.(pipeline, R::GetValue, delete: true).extend(P::Debug).inspect.must_equal "Pipeline[Collect[StopOnSkipable], StopOnNil]"
pipeline.extend(P::Debug).inspect.must_equal "Pipeline[GetValue, Collect[GetValue, StopOnSkipable], StopOnNil]"
end
end
end
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