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# frozen_string_literal: true
RSpec.describe JWT::JWK do
let(:rsa_key) { test_pkey('rsa-2048-private.pem') }
let(:ec_key) { test_pkey('ec256k-private.pem') }
describe '.import' do
let(:keypair) { rsa_key.public_key }
let(:exported_key) { described_class.new(keypair).export }
let(:params) { exported_key }
subject { described_class.import(params) }
it 'creates a ::JWT::JWK::RSA instance' do
expect(subject).to be_a JWT::JWK::RSA
expect(subject.export).to eq(exported_key)
end
context 'when number is given' do
let(:params) { 1234 }
it 'raises an error' do
expect { subject }.to raise_error(JWT::JWKError, 'Cannot create JWK from a Integer')
end
end
context 'parsed from JSON' do
let(:params) { exported_key }
it 'creates a ::JWT::JWK::RSA instance from JSON parsed JWK' do
expect(subject).to be_a JWT::JWK::RSA
expect(subject.export).to eq(exported_key)
end
end
context 'when keytype is not supported' do
let(:params) { { kty: 'unsupported' } }
it 'raises an error' do
expect { subject }.to raise_error(JWT::JWKError)
end
end
context 'when keypair with defined kid is imported' do
it 'returns the predefined kid if jwt_data contains a kid' do
params[:kid] = 'CUSTOM_KID'
expect(subject.export).to eq(params)
end
end
context 'when a common JWK parameter is specified' do
it 'returns the defined common JWK parameter' do
params[:use] = 'sig'
expect(subject.export).to eq(params)
end
end
end
describe '.new' do
let(:options) { nil }
subject { described_class.new(keypair, options) }
context 'when RSA key is given' do
let(:keypair) { rsa_key }
it { is_expected.to be_a JWT::JWK::RSA }
end
context 'when secret key is given' do
let(:keypair) { 'secret-key' }
it { is_expected.to be_a JWT::JWK::HMAC }
end
context 'when EC key is given' do
let(:keypair) { ec_key }
it { is_expected.to be_a JWT::JWK::EC }
end
context 'when kid is given' do
let(:keypair) { rsa_key }
let(:options) { 'CUSTOM_KID' }
it 'sets the kid' do
expect(subject.kid).to eq(options)
end
end
context 'when a common parameter is given' do
subject { described_class.new(keypair, params) }
let(:keypair) { rsa_key }
let(:params) { { 'use' => 'sig' } }
it 'sets the common parameter' do
expect(subject[:use]).to eq('sig')
end
end
end
describe '.[]' do
let(:params) { { use: 'sig' } }
let(:keypair) { rsa_key }
subject { described_class.new(keypair, params) }
it 'allows to read common parameters via the key-accessor' do
expect(subject[:use]).to eq('sig')
end
it 'allows to set common parameters via the key-accessor' do
subject[:use] = 'enc'
expect(subject[:use]).to eq('enc')
end
it 'rejects key parameters as keys via the key-accessor' do
expect { subject[:kty] = 'something' }.to raise_error(ArgumentError)
end
end
end
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