require "spec_helper"
describe Microformat::Selectors do
let(:selectors) { Hash.new }
subject do
Microformat::Selectors.instance
end
before(:each) do
selectors.each do |sel,klass|
Microformat::Selectors.define(sel, klass)
end
end
after(:each) do
Microformat::Selectors.instance.replace({})
end
describe "::instance" do
it "should always return the same object" do
expect(subject.class.instance.object_id).to eq subject.class.instance.object_id
end
end
describe "::define" do
context "when the selector is already defined" do
it "should raise an exception" do
subject.class.define(".hello", Hash)
expect {
subject.class.define(".hello", Object)
}.to raise_error(ArgumentError)
end
end
context "when redefining the selector" do
it "should not raise an exception" do
subject.class.define(".hello", Hash)
expect {
subject.class.define(".hello", Hash)
}.not_to raise_error(ArgumentError)
end
end
context "when the selector is not defined" do
it "should add the definition to the hash" do
subject.class.define(".hello", Hash)
expect(subject[".hello"]).to eq Hash
end
end
end
describe "::class_matching" do
let(:selectors) do
{
".review" => Object,
".card" => Hash
}
end
it "should return the first class that matches the given selectors" do
doc = %Q(
)
element = Nokogiri::HTML(doc).css(".card").first
expect(subject.class.class_matching(element)).to eq Hash
end
context "with no matching selectors" do
it "should raise an exception" do
doc = %Q(
)
element = Nokogiri::HTML(doc).css(".non").first
expect {
subject.class.class_matching(element)
}.to raise_error(RuntimeError)
end
end
end
describe "::filter" do
let(:selectors) do
{ ".review" => Object }
end
it "should return an array of selectors that match the given classes" do
expect(subject.class.filter(Object)).to eq [".review"]
expect(subject.class.filter(Hash)).to eq []
end
end
end