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# frozen_string_literal: true
# Copyright, 2018, by Samuel G. D. Williams. <http://www.codeotaku.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require 'protocol/http/body/buffered'
require 'rspec/memory'
RSpec.describe Protocol::HTTP::Body::Buffered do
include_context RSpec::Memory
let(:body) {["Hello", "World"]}
subject! {described_class.wrap(body)}
describe ".wrap" do
context "when body is a Body::Readable" do
let(:body) {Protocol::HTTP::Body::Readable.new}
it "returns the body" do
expect(subject).to be == body
end
end
context "when body is an Array" do
let(:body) {["Hello", "World"]}
it "returns instance initialized with the array" do
expect(subject).to be_an_instance_of(described_class)
end
end
context "when body responds to #each" do
let(:body) {["Hello", "World"].each}
it "buffers the content into an array before initializing" do
expect(subject).to be_an_instance_of(described_class)
allow(body).to receive(:each).and_raise(StopIteration)
expect(subject.read).to be == "Hello"
expect(subject.read).to be == "World"
end
end
context "when body is a String" do
let(:body) {"Hello World"}
it "returns instance initialized with the array" do
expect(subject).to be_an_instance_of(described_class)
end
end
end
describe "#length" do
it "returns sum of chunks' bytesize" do
expect(subject.length).to be == 10
end
end
describe "#empty?" do
it "returns false when there are chunks left" do
expect(subject.empty?).to be == false
subject.read
expect(subject.empty?).to be == false
end
it "returns true when there are no chunks left" do
subject.read
subject.read
expect(subject.empty?).to be == true
end
it "returns false when rewinded" do
subject.read
subject.read
subject.rewind
expect(subject.empty?).to be == false
end
end
describe '#ready?' do
it {is_expected.to be_ready}
end
describe "#finish" do
it "returns self" do
expect(subject.finish).to be == subject
end
end
describe "#read" do
it "retrieves chunks of content" do
expect(subject.read).to be == "Hello"
expect(subject.read).to be == "World"
expect(subject.read).to be == nil
end
context "with large content" do
let(:content) {Array.new(5) {|i| "#{i}" * (1*1024*1024)}}
it "allocates expected amount of memory" do
expect do
subject.read until subject.empty?
end.to limit_allocations(size: 0)
end
end
end
describe "#rewind" do
it "positions the cursor to the beginning" do
expect(subject.read).to be == "Hello"
subject.rewind
expect(subject.read).to be == "Hello"
end
end
describe '#inspect' do
it "can be inspected" do
expect(subject.inspect).to be =~ /\d+ chunks, \d+ bytes/
end
end
end
|
