Sha256: 971bc914da9d99ffcf150e844268d4d1be5d21d9ecaa094c3ad1895677ec1ca6
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Contents
# encoding: ascii-8bit
# Copyright 2014 Ball Aerospace & Technologies Corp.
# All Rights Reserved.
#
# This program is free software; you can modify and/or redistribute it
# under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 3 with
# attribution addendums as found in the LICENSE.txt
require 'spec_helper'
require 'cosmos/core_ext/cosmos_io'
class StringIO
include CosmosIO
end
describe StringIO do
describe "read_length_bytes" do
it "returns nil if length field is not 1, 2 or 4" do
io = StringIO.new
io.write "\x01\x01\x01\x01\x01\x01\x01\x01"
io.rewind
expect(io.read_length_bytes(0)).to be_nil
io.rewind
expect(io.read_length_bytes(3)).to be_nil
io.rewind
expect(io.read_length_bytes(8)).to be_nil
end
it "returns nil if there aren't enough bytes to read the length field" do
io = StringIO.new
io.write ""
io.rewind
expect(io.read_length_bytes(1)).to be_nil
io = StringIO.new
io.write "\x01"
io.rewind
expect(io.read_length_bytes(2)).to be_nil
io = StringIO.new
io.write "\x01\x01"
io.rewind
expect(io.read_length_bytes(4)).to be_nil
end
it "returns nil if there aren't enough bytes to read the string" do
io = StringIO.new
io.write "\x02\x01"
io.rewind
expect(io.read_length_bytes(1)).to be_nil
end
it "reads the bytes with length field size 1" do
io = StringIO.new
io.write "\x02\x01\x02"
io.rewind
expect(io.read_length_bytes(1)).to eql "\x01\x02"
end
it "reads the bytes with length field size 2" do
io = StringIO.new
io.write "\x00\x03\x01\x02\x03"
io.rewind
expect(io.read_length_bytes(2)).to eql "\x01\x02\x03"
end
it "reads the bytes with length field size 4" do
io = StringIO.new
io.write "\x00\x00\x00\x03\x01\x02\x03"
io.rewind
expect(io.read_length_bytes(4)).to eql "\x01\x02\x03"
end
end
end
Version data entries
59 entries across 59 versions & 1 rubygems