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require 'spec_helper'
RSpec.describe HTTParty::Decompressor do
describe '.SupportedEncodings' do
it 'returns a hash' do
expect(HTTParty::Decompressor::SupportedEncodings).to be_instance_of(Hash)
end
end
describe '#decompress' do
let(:body) { 'body' }
let(:encoding) { 'none' }
let(:decompressor) { described_class.new(body, encoding) }
subject { decompressor.decompress }
shared_examples 'returns nil' do
it { expect(subject).to be_nil }
end
shared_examples 'returns the body' do
it { expect(subject).to eq 'body' }
end
context 'when body is nil' do
let(:body) { nil }
it_behaves_like 'returns nil'
end
context 'when body is blank' do
let(:body) { ' ' }
it { expect(subject).to eq ' ' }
end
context 'when encoding is nil' do
let(:encoding) { nil }
it_behaves_like 'returns the body'
end
context 'when encoding is blank' do
let(:encoding) { ' ' }
it_behaves_like 'returns the body'
end
context 'when encoding is "none"' do
let(:encoding) { 'none' }
it_behaves_like 'returns the body'
end
context 'when encoding is "identity"' do
let(:encoding) { 'identity' }
it_behaves_like 'returns the body'
end
context 'when encoding is unsupported' do
let(:encoding) { 'invalid' }
it_behaves_like 'returns nil'
end
context 'when encoding is "br"' do
let(:encoding) { 'br' }
context 'when brotli gem not included' do
it_behaves_like 'returns nil'
end
context 'when brotli included' do
before do
dbl = double('Brotli')
expect(dbl).to receive(:inflate).with('body').and_return('foobar')
stub_const('Brotli', dbl)
end
it { expect(subject).to eq 'foobar' }
end
context 'when brotli raises error' do
before do
dbl = double('brotli')
expect(dbl).to receive(:inflate).with('body') { raise RuntimeError.new('brotli error') }
stub_const('Brotli', dbl)
end
it { expect(subject).to eq nil }
end
end
context 'when encoding is "compress"' do
let(:encoding) { 'compress' }
context 'when LZW gem not included' do
it_behaves_like 'returns nil'
end
context 'when ruby-lzws included' do
before do
dbl = double('lzws')
expect(dbl).to receive(:decompress).with('body').and_return('foobar')
stub_const('LZWS::String', dbl)
end
it { expect(subject).to eq 'foobar' }
end
context 'when ruby-lzws raises error' do
before do
dbl = double('lzws')
expect(dbl).to receive(:decompress).with('body') { raise RuntimeError.new('brotli error') }
stub_const('LZWS::String', dbl)
end
it { expect(subject).to eq nil }
end
context 'when compress-lzw included' do
before do
dbl2 = double('lzw2')
dbl = double('lzw1', new: dbl2)
expect(dbl2).to receive(:decompress).with('body').and_return('foobar')
stub_const('LZW::Simple', dbl)
end
it { expect(subject).to eq 'foobar' }
end
context 'when compress-lzw raises error' do
before do
dbl2 = double('lzw2')
dbl = double('lzw1', new: dbl2)
expect(dbl2).to receive(:decompress).with('body') { raise RuntimeError.new('brotli error') }
stub_const('LZW::Simple', dbl)
end
end
end
context 'when encoding is "zstd"' do
let(:encoding) { 'zstd' }
context 'when zstd-ruby gem not included' do
it_behaves_like 'returns nil'
end
context 'when zstd-ruby included' do
before do
dbl = double('Zstd')
expect(dbl).to receive(:decompress).with('body').and_return('foobar')
stub_const('Zstd', dbl)
end
it { expect(subject).to eq 'foobar' }
end
context 'when zstd raises error' do
before do
dbl = double('Zstd')
expect(dbl).to receive(:decompress).with('body') { raise RuntimeError.new('zstd error') }
stub_const('Zstd', dbl)
end
it { expect(subject).to eq nil }
end
end
end
end
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