Module: ADSP::Test::Mock::Common

Defined in:
lib/adsp/test/mock/common.rb

Overview

ADSP::Test::Mock::Common module.

Constant Summary collapse

DEFAULT_DESTINATION_BUFFER_LENGTH =

256 KB

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Class Method Summary collapse

Class Method Details

.native_compress(source, destination_buffer_length) ⇒ Object

Flipping bytes and packing them as 16-bit values in network byte order. This method will make compressed data bytesize more than original bytesize. It will help to improve testing coverage.



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# File 'lib/adsp/test/mock/common.rb', line 18

def self.native_compress(source, destination_buffer_length)
  source_length             = source.bytesize
  destination_buffer_length = DEFAULT_DESTINATION_BUFFER_LENGTH if destination_buffer_length.zero?

  bytes_read =
    if destination_buffer_length.nil?
      source_length
    else
      [source_length, destination_buffer_length / 2].min
    end

  result = source
    .byteslice(0, bytes_read)
    .unpack("C*")
    .map { |byte| byte ^ 0xFF }
    .pack "n*"
  [result, bytes_read]
end

.native_decompress(source, destination_buffer_length) ⇒ Object 



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# File 'lib/adsp/test/mock/common.rb', line 37

def self.native_decompress(source, destination_buffer_length)
  source_length             = source.bytesize / 2 * 2
  destination_buffer_length = DEFAULT_DESTINATION_BUFFER_LENGTH if destination_buffer_length.zero?

  bytes_read =
    if destination_buffer_length.nil?
      source_length
    else
      [source_length, destination_buffer_length * 2].min
    end

  result = source
    .byteslice(0, bytes_read)
    .unpack("n*")
    .map { |byte| byte ^ 0xFF }
    .pack "C*"
  [result, bytes_read]
end