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impress/spec/models/species_spec.rb

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require_relative '../rails_helper'
RSpec.describe Species do
fixtures :species
describe '#to_param' do
it("uses name when possible") do
expect(species(:acara).to_param).to eq "Acara"
end
it("uses IDs for new species") do
expect(Species.new(id: 12345).to_param).to eq "12345"
end
end
describe ".param_to_id" do
it("looks up by name") do
expect(Species.param_to_id("acara")).to eq species(:acara).id
end
it("is case-insensitive for name") do
expect(Species.param_to_id("aCaRa")).to eq species(:acara).id
end
it("returns ID when the param is just a number, even if no record exists") do
expect(Species.param_to_id("123456")).to eq 123456
end
it("raises RecordNotFound if no name matches") do
expect { Species.param_to_id("nonexistant") }.
to raise_error ActiveRecord::RecordNotFound
end
end
end