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# frozen_string_literal: true
require "spec_helper"
require "ostruct"
module Roadie
module Rails
describe Options do
it "raises errors when constructed with unknown options" do
expect {
Options.new(unknown_option: "maybe a misspelling?")
}.to raise_error(ArgumentError, /unknown_option/)
end
it "raises errors when setting or reading unknown options" do
options = Options.new
expect { options[:foo] }.to raise_error(ArgumentError, /foo/)
expect { options[:foo] = true }.to raise_error(ArgumentError, /foo/)
end
shared_examples_for "attribute" do |name|
describe name do
it "defaults to nil" do
expect(Options.new[name]).to be_nil
end
it "can be set in the constructor" do
options = Options.new(name => valid_value)
expect(options[name]).to eq(valid_value)
end
it "can be changed using setter" do
options = Options.new
options.send :"#{name}=", valid_value
expect(options[name]).to eq(valid_value)
end
it "can be changed using brackets" do
options = Options.new
options[name] = valid_value
expect(options[name]).to eq(valid_value)
end
it "can be applied to documents" do
fake_document = OpenStruct.new
options = Options.new(name => valid_value)
options.apply_to(fake_document)
expect(fake_document[name]).to eq(valid_value)
end
describe "merging" do
it "replaces values" do
options = Options.new(name => valid_value)
merged = options.merge(name => other_valid_value)
expect(merged[name]).to eq(other_valid_value)
end
it "does not mutate instance" do
options = Options.new(name => valid_value)
options.merge(name => other_valid_value)
expect(options[name]).to eq(valid_value)
end
end
describe "destructive merging" do
it "replaces values" do
options = Options.new(name => valid_value)
merged = options.merge(name => other_valid_value)
expect(merged[name]).to eq(other_valid_value)
end
end
describe "combining" do
it "combines the old and the new value" do
options = Options.new(name => valid_value)
combined = options.combine(name => other_valid_value)
expect_combinated_value(combined[name])
end
it "does not mutate instance" do
options = Options.new(name => valid_value)
options.combine(name => other_valid_value)
expect(options[name]).to eq(valid_value)
end
it "does not touch initial value if no new value is passed" do
options = Options.new(name => valid_value)
combined = options.combine({})
expect(combined[name]).to eq(valid_value)
end
end
describe "destructive combining" do
it "combines the old and the new value in the instance" do
options = Options.new(name => valid_value)
options.combine!(name => other_valid_value)
expect_combinated_value(options[name])
end
end
end
end
it_behaves_like "attribute", :url_options do
let(:valid_value) { {host: "foo.com", port: 3000} }
let(:other_valid_value) { {host: "bar.com", scheme: "https"} }
def expect_combinated_value(value)
expect(value).to eq(host: "bar.com", port: 3000, scheme: "https")
end
end
it_behaves_like "attribute", :keep_uninlinable_css do
let(:valid_value) { true }
let(:other_valid_value) { false }
def expect_combinated_value(value)
expect(value).to eq other_valid_value
end
end
it_behaves_like "attribute", :before_transformation do
let(:valid_value) { -> {} }
let(:other_valid_value) { -> {} }
def expect_combinated_value(value)
allow(valid_value).to receive(:call).and_return 1
allow(other_valid_value).to receive(:call).and_return 2
expect(value.call).to eq(2)
expect(valid_value).to have_received(:call).once.ordered
expect(other_valid_value).to have_received(:call).once.ordered
end
end
it_behaves_like "attribute", :after_transformation do
let(:valid_value) { -> {} }
let(:other_valid_value) { -> {} }
def expect_combinated_value(value)
allow(valid_value).to receive(:call).and_return 1
allow(other_valid_value).to receive(:call).and_return 2
expect(value.call).to eq(2)
expect(valid_value).to have_received(:call).once.ordered
expect(other_valid_value).to have_received(:call).once.ordered
end
end
it_behaves_like "attribute", :asset_providers do
let(:provider1) { double "Asset provider 1" }
let(:provider2) { double "Asset provider 2" }
let(:valid_value) { ProviderList.new([provider1]) }
let(:other_valid_value) { ProviderList.new([provider2]) }
def expect_combinated_value(value)
expect(value).to be_instance_of(ProviderList)
expect(value.to_a).to eq([provider1, provider2])
end
end
it_behaves_like "attribute", :external_asset_providers do
let(:provider1) { double "Asset provider 1" }
let(:provider2) { double "Asset provider 2" }
let(:valid_value) { ProviderList.new([provider1]) }
let(:other_valid_value) { ProviderList.new([provider2]) }
def expect_combinated_value(value)
expect(value).to be_instance_of(ProviderList)
expect(value.to_a).to eq([provider1, provider2])
end
end
describe "asset_providers" do
it "automatically wraps values in a ProviderList" do
provider = double "Asset provider"
options = Options.new(asset_providers: [provider])
expect(options.asset_providers).to be_instance_of(ProviderList)
expect(options.asset_providers.to_a).to eq([provider])
end
end
describe "applying to a document" do
it "does not change the default asset_providers if option is never set" do
fake_document = OpenStruct.new(asset_providers: "original")
Options.new.apply_to(fake_document)
expect(fake_document.asset_providers).to eq("original")
end
end
end
end
end
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