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# frozen_string_literal: true
# rubocop:todo all
require 'spec_helper'
describe Mongo::Protocol::Compressed do
let(:original_message) { Mongo::Protocol::Query.new(SpecConfig.instance.test_db, 'protocol-test', { ping: 1 }) }
let(:compressor) { 'zlib' }
let(:level) { nil }
let(:message) do
described_class.new(original_message, compressor, level)
end
let(:original_message_bytes) do
buf = BSON::ByteBuffer.new
original_message.send(:serialize_fields, buf)
buf.to_s
end
describe '#serialize' do
context "when using the snappy compressor" do
require_snappy_compression
let(:compressor) { 'snappy' }
it "uses snappy" do
expect(Snappy).to receive(:deflate).with(original_message_bytes).and_call_original
message.serialize
end
end
context "when using the zstd compressor" do
require_zstd_compression
let(:compressor) { 'zstd' }
it "uses zstd with default compression level" do
expect(Zstd).to receive(:compress).with(original_message_bytes).and_call_original
message.serialize
end
end
context 'when zlib compression level is not provided' do
it 'does not set a compression level' do
expect(Zlib::Deflate).to receive(:deflate).with(original_message_bytes, nil).and_call_original
message.serialize
end
end
context 'when zlib compression level is provided' do
let(:level) { 1 }
it 'uses the compression level' do
expect(Zlib::Deflate).to receive(:deflate).with(original_message_bytes, 1).and_call_original
message.serialize
end
end
end
describe '#replyable?' do
context 'when the original message is replyable' do
it 'returns true' do
expect(message.replyable?).to be(true)
end
end
context 'when the original message is not replyable' do
let(:original_message) do
Mongo::Protocol::Msg.new([:more_to_come], {}, { ping: 1 })
end
it 'returns false' do
expect(message.replyable?).to be(false)
end
end
end
end
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