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impress/spec/models/color_spec.rb

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require_relative '../rails_helper'
RSpec.describe Color do
fixtures :colors
describe '#to_param' do
it("uses name when possible") do
expect(colors(:blue).to_param).to eq "Blue"
end
it("uses spaces for multi-word names") do
expect(colors(:swamp_gas).to_param).to eq "Swamp Gas"
end
it("uses IDs for new colors") do
expect(Color.new(id: 12345).to_param).to eq "12345"
end
end
describe ".param_to_id" do
it("looks up by name") do
expect(Color.param_to_id("blue")).to eq colors(:blue).id
end
it("is case-insensitive for name") do
expect(Color.param_to_id("bLUe")).to eq colors(:blue).id
end
it("returns ID when the param is just a number, even if it doesn't exist") do
expect(Color.param_to_id("123456")).to eq 123456
end
it("raises RecordNotFound if no name matches") do
expect { Color.param_to_id("nonexistant") }.
to raise_error ActiveRecord::RecordNotFound
end
end
end