418 lines
11 KiB
Ruby
418 lines
11 KiB
Ruby
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require 'spec_helper'
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describe HTTP::Headers do
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subject(:headers) { described_class.new }
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it 'is Enumerable' do
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expect(headers).to be_an Enumerable
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end
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describe '#set' do
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it 'sets header value' do
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headers.set 'Accept', 'application/json'
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expect(headers['Accept']).to eq 'application/json'
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end
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it 'normalizes header name' do
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headers.set :content_type, 'application/json'
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expect(headers['Content-Type']).to eq 'application/json'
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end
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it 'overwrites previous value' do
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headers.set :set_cookie, 'hoo=ray'
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headers.set :set_cookie, 'woo=hoo'
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expect(headers['Set-Cookie']).to eq 'woo=hoo'
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end
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it 'allows set multiple values' do
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headers.set :set_cookie, 'hoo=ray'
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headers.set :set_cookie, %w[hoo=ray woo=hoo]
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expect(headers['Set-Cookie']).to eq %w[hoo=ray woo=hoo]
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end
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end
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describe '#[]=' do
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it 'sets header value' do
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headers['Accept'] = 'application/json'
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expect(headers['Accept']).to eq 'application/json'
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end
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it 'normalizes header name' do
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headers[:content_type] = 'application/json'
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expect(headers['Content-Type']).to eq 'application/json'
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end
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it 'overwrites previous value' do
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headers[:set_cookie] = 'hoo=ray'
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headers[:set_cookie] = 'woo=hoo'
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expect(headers['Set-Cookie']).to eq 'woo=hoo'
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end
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it 'allows set multiple values' do
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headers[:set_cookie] = 'hoo=ray'
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headers[:set_cookie] = %w[hoo=ray woo=hoo]
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expect(headers['Set-Cookie']).to eq %w[hoo=ray woo=hoo]
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end
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end
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describe '#delete' do
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before { headers.set 'Content-Type', 'application/json' }
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it 'removes given header' do
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headers.delete 'Content-Type'
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expect(headers['Content-Type']).to be_nil
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end
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it 'normalizes header name' do
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headers.delete :content_type
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expect(headers['Content-Type']).to be_nil
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end
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end
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describe '#add' do
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it 'sets header value' do
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headers.add 'Accept', 'application/json'
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expect(headers['Accept']).to eq 'application/json'
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end
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it 'normalizes header name' do
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headers.add :content_type, 'application/json'
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expect(headers['Content-Type']).to eq 'application/json'
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end
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it 'appends new value if header exists' do
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headers.add :set_cookie, 'hoo=ray'
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headers.add :set_cookie, 'woo=hoo'
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expect(headers['Set-Cookie']).to eq %w[hoo=ray woo=hoo]
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end
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it 'allows append multiple values' do
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headers.add :set_cookie, 'hoo=ray'
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headers.add :set_cookie, %w[woo=hoo yup=pie]
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expect(headers['Set-Cookie']).to eq %w[hoo=ray woo=hoo yup=pie]
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end
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end
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describe '#get' do
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before { headers.set 'Content-Type', 'application/json' }
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it 'returns array of associated values' do
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expect(headers.get 'Content-Type').to eq %w[application/json]
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end
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it 'normalizes header name' do
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expect(headers.get :content_type).to eq %w[application/json]
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end
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context 'when header does not exists' do
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it 'returns empty array' do
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expect(headers.get :accept).to eq []
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end
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end
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end
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describe '#[]' do
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context 'when header does not exists' do
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it 'returns nil' do
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expect(headers[:accept]).to be_nil
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end
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end
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context 'when header has a single value' do
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before { headers.set 'Content-Type', 'application/json' }
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it 'normalizes header name' do
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expect(headers[:content_type]).to_not be_nil
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end
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it 'returns it returns a single value' do
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expect(headers[:content_type]).to eq 'application/json'
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end
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end
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context 'when header has a multiple values' do
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before do
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headers.add :set_cookie, 'hoo=ray'
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headers.add :set_cookie, 'woo=hoo'
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end
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it 'normalizes header name' do
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expect(headers[:set_cookie]).to_not be_nil
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end
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it 'returns array of associated values' do
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expect(headers[:set_cookie]).to eq %w[hoo=ray woo=hoo]
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end
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end
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end
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describe '#to_h' do
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before do
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headers.add :content_type, 'application/json'
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headers.add :set_cookie, 'hoo=ray'
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headers.add :set_cookie, 'woo=hoo'
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end
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it 'returns a Hash' do
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expect(headers.to_h).to be_a Hash
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end
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it 'returns Hash with normalized keys' do
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expect(headers.to_h.keys).to match_array %w[Content-Type Set-Cookie]
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end
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context 'for a header with single value' do
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it 'provides a value as is' do
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expect(headers.to_h['Content-Type']).to eq 'application/json'
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end
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end
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context 'for a header with multiple values' do
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it 'provides an array of values' do
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expect(headers.to_h['Set-Cookie']).to eq %w[hoo=ray woo=hoo]
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end
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end
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end
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describe '#to_a' do
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before do
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headers.add :content_type, 'application/json'
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headers.add :set_cookie, 'hoo=ray'
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headers.add :set_cookie, 'woo=hoo'
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end
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it 'returns an Array' do
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expect(headers.to_a).to be_a Array
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end
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it 'returns Array of key/value pairs with normalized keys' do
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expect(headers.to_a).to eq [
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%w[Content-Type application/json],
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%w[Set-Cookie hoo=ray],
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%w[Set-Cookie woo=hoo]
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]
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end
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end
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describe '#inspect' do
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before { headers.set :set_cookie, %w[hoo=ray woo=hoo] }
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subject { headers.inspect }
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it { should eq '#<HTTP::Headers {"Set-Cookie"=>["hoo=ray", "woo=hoo"]}>' }
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end
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describe '#keys' do
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before do
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headers.add :content_type, 'application/json'
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headers.add :set_cookie, 'hoo=ray'
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headers.add :set_cookie, 'woo=hoo'
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end
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it 'returns uniq keys only' do
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expect(headers.keys).to have_exactly(2).items
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end
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it 'normalizes keys' do
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expect(headers.keys).to include('Content-Type', 'Set-Cookie')
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end
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end
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describe '#each' do
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before do
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headers.add :set_cookie, 'hoo=ray'
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headers.add :content_type, 'application/json'
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headers.add :set_cookie, 'woo=hoo'
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end
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it 'yields each key/value pair separatedly' do
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expect { |b| headers.each(&b) }.to yield_control.exactly(3).times
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end
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it 'yields headers in the same order they were added' do
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expect { |b| headers.each(&b) }.to yield_successive_args(
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%w[Set-Cookie hoo=ray],
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%w[Content-Type application/json],
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%w[Set-Cookie woo=hoo]
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)
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end
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end
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describe '.empty?' do
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subject { headers.empty? }
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context 'initially' do
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it { should be_true }
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end
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context 'when header exists' do
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before { headers.add :accept, 'text/plain' }
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it { should be_false }
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end
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context 'when last header was removed' do
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before do
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headers.add :accept, 'text/plain'
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headers.delete :accept
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end
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it { should be_true }
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end
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end
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describe '#hash' do
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let(:left) { described_class.new }
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let(:right) { described_class.new }
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it 'equals if two headers equals' do
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left.add :accept, 'text/plain'
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right.add :accept, 'text/plain'
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expect(left.hash).to eq right.hash
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end
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end
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describe '#==' do
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let(:left) { described_class.new }
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let(:right) { described_class.new }
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it 'compares header keys and values' do
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left.add :accept, 'text/plain'
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right.add :accept, 'text/plain'
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expect(left).to eq right
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end
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it 'allows comparison with Array of key/value pairs' do
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left.add :accept, 'text/plain'
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expect(left).to eq [%w[Accept text/plain]]
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end
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it 'sensitive to headers order' do
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left.add :accept, 'text/plain'
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left.add :cookie, 'woo=hoo'
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right.add :cookie, 'woo=hoo'
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right.add :accept, 'text/plain'
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expect(left).to_not eq right
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end
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it 'sensitive to header values order' do
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left.add :cookie, 'hoo=ray'
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left.add :cookie, 'woo=hoo'
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right.add :cookie, 'woo=hoo'
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right.add :cookie, 'hoo=ray'
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expect(left).to_not eq right
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end
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end
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describe '#dup' do
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before { headers.set :content_type, 'application/json' }
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subject(:dupped) { headers.dup }
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it { should be_a described_class }
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it { should_not be headers }
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it 'has headers copied' do
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expect(dupped[:content_type]).to eq 'application/json'
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end
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context 'modifying a copy' do
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before { dupped.set :content_type, 'text/plain' }
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it 'modifies dupped copy' do
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expect(dupped[:content_type]).to eq 'text/plain'
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end
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it 'does not affects original headers' do
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expect(headers[:content_type]).to eq 'application/json'
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end
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end
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end
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describe '#merge!' do
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before do
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headers.set :host, 'example.com'
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headers.set :accept, 'application/json'
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headers.merge! :accept => 'plain/text', :cookie => %w[hoo=ray woo=hoo]
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end
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it 'leaves headers not presented in other as is' do
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expect(headers[:host]).to eq 'example.com'
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end
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it 'overwrites existing values' do
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expect(headers[:accept]).to eq 'plain/text'
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end
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it 'appends other headers, not presented in base' do
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expect(headers[:cookie]).to eq %w[hoo=ray woo=hoo]
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end
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end
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describe '#merge' do
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before do
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headers.set :host, 'example.com'
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headers.set :accept, 'application/json'
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end
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subject(:merged) do
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headers.merge :accept => 'plain/text', :cookie => %w[hoo=ray woo=hoo]
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end
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it { should be_a described_class }
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it { should_not be headers }
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it 'does not affects original headers' do
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expect(merged.to_h).to_not eq headers.to_h
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end
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it 'leaves headers not presented in other as is' do
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expect(merged[:host]).to eq 'example.com'
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end
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it 'overwrites existing values' do
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expect(merged[:accept]).to eq 'plain/text'
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end
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it 'appends other headers, not presented in base' do
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expect(merged[:cookie]).to eq %w[hoo=ray woo=hoo]
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end
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end
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describe '.coerce' do
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let(:dummyClass) { Class.new { def respond_to?(*); end } }
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it 'accepts any object that respond to #to_hash' do
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hashie = double :to_hash => {'accept' => 'json'}
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expect(described_class.coerce(hashie)['accept']).to eq 'json'
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end
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it 'accepts any object that respond to #to_h' do
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hashie = double :to_h => {'accept' => 'json'}
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expect(described_class.coerce(hashie)['accept']).to eq 'json'
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end
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it 'accepts any object that respond to #to_a' do
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hashie = double :to_a => [%w[accept json]]
|
||
|
|
expect(described_class.coerce(hashie)['accept']).to eq 'json'
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'fails if given object cannot be coerced' do
|
||
|
|
expect { described_class.coerce dummyClass.new }.to raise_error HTTP::Error
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'with duplicate header keys (mixed case)' do
|
||
|
|
let(:headers) { {'Set-Cookie' => 'hoo=ray', 'set-cookie' => 'woo=hoo'} }
|
||
|
|
|
||
|
|
it 'adds all headers' do
|
||
|
|
expect(described_class.coerce(headers).to_a).to match_array([
|
||
|
|
%w[Set-Cookie hoo=ray],
|
||
|
|
%w[Set-Cookie woo=hoo]
|
||
|
|
])
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|