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# frozen_string_literal: true
# Released under the MIT License.
# Copyright, 2019-2025, by Samuel Williams.
require "protocol/http/body/rewindable"
require "protocol/http/request"
describe Protocol::HTTP::Body::Rewindable do
let(:source) {Protocol::HTTP::Body::Buffered.new}
let(:body) {subject.new(source)}
it "can write and read data" do
3.times do |i|
source.write("Hello World #{i}")
expect(body.read).to be == "Hello World #{i}"
end
end
it "can write and read data multiple times" do
3.times do |i|
source.write("Hello World #{i}")
end
3.times do
body.rewind
expect(body).to be(:ready?)
expect(body.read).to be == "Hello World 0"
end
end
it "can buffer data in order" do
3.times do |i|
source.write("Hello World #{i}")
end
2.times do
body.rewind
3.times do |i|
expect(body.read).to be == "Hello World #{i}"
end
end
end
with ".wrap" do
with "a buffered body" do
let(:body) {Protocol::HTTP::Body::Buffered.new}
let(:message) {Protocol::HTTP::Request.new(nil, nil, "GET", "/", nil, Protocol::HTTP::Headers.new, body)}
it "returns the body" do
expect(subject.wrap(message)).to be == body
end
end
with "a non-rewindable body" do
let(:body) {Protocol::HTTP::Body::Readable.new}
let(:message) {Protocol::HTTP::Request.new(nil, nil, "GET", "/", nil, Protocol::HTTP::Headers.new, body)}
it "returns a new rewindable body" do
expect(subject.wrap(message)).to be_a(Protocol::HTTP::Body::Rewindable)
end
end
end
with "#buffered" do
it "can generate buffered representation" do
3.times do |i|
source.write("Hello World #{i}")
end
expect(body.buffered).to be(:empty?)
# Read one chunk into the internal buffer:
body.read
expect(body.buffered.chunks).to be == ["Hello World 0"]
end
end
with "#empty?" do
it "can read and re-read the body" do
source.write("Hello World")
expect(body).not.to be(:empty?)
expect(body.read).to be == "Hello World"
expect(body).to be(:empty?)
body.rewind
expect(body.read).to be == "Hello World"
expect(body).to be(:empty?)
end
end
with "#rewindable?" do
it "is rewindable" do
expect(body).to be(:rewindable?)
end
end
with "#inspect" do
it "can generate string representation" do
expect(body.inspect).to be == "#<Protocol::HTTP::Body::Buffered empty> | #<Protocol::HTTP::Body::Rewindable 0/0 chunks read>"
end
end
with "#as_json" do
it "includes rewind tracking information" do
expect(body.as_json).to have_keys(
class: be == "Protocol::HTTP::Body::Rewindable",
index: be == 0,
chunks: be == 0
)
end
end
end
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