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require File.expand_path(File.join(File.dirname(__FILE__), 'helper'))
require 'stringio'
class CompositeReadIOTest < Faraday::TestCase
Part = Struct.new(:to_io) do
def length() to_io.string.length end
end
def part(str)
Part.new StringIO.new(str)
end
def composite_io(*parts)
Faraday::CompositeReadIO.new(*parts)
end
def test_empty
io = composite_io
assert_equal 0, io.length
assert_equal "", io.read
end
def test_empty_returns_nil_for_limited_read
assert_nil composite_io.read(1)
end
def test_empty_parts_returns_nil_for_limited_read
io = composite_io(part(""), part(""))
assert_nil io.read(1)
end
def test_multipart_read_all
io = composite_io(part("abcd"), part("1234"))
assert_equal 8, io.length
assert_equal "abcd1234", io.read
end
def test_multipart_read_limited
io = composite_io(part("abcd"), part("1234"))
assert_equal "abc", io.read(3)
assert_equal "d12", io.read(3)
assert_equal "34", io.read(3)
assert_equal nil, io.read(3)
assert_equal nil, io.read(3)
end
def test_multipart_read_limited_size_larger_than_part
io = composite_io(part("abcd"), part("1234"))
assert_equal "abcd12", io.read(6)
assert_equal "34", io.read(6)
assert_equal nil, io.read(6)
end
def test_multipart_read_with_blank_parts
io = composite_io(part(""), part("abcd"), part(""), part("1234"), part(""))
assert_equal "abcd12", io.read(6)
assert_equal "34", io.read(6)
assert_equal nil, io.read(6)
end
def test_multipart_rewind
io = composite_io(part("abcd"), part("1234"))
assert_equal "abc", io.read(3)
assert_equal "d12", io.read(3)
io.rewind
assert_equal "abc", io.read(3)
assert_equal "d1234", io.read(5)
assert_equal nil, io.read(3)
io.rewind
assert_equal "ab", io.read(2)
end
# JRuby enforces types to copy_stream to be String or IO
if IO.respond_to?(:copy_stream) && !jruby?
def test_compatible_with_copy_stream
target_io = StringIO.new
def target_io.ensure_open_and_writable
# Rubinius compatibility
end
io = composite_io(part("abcd"), part("1234"))
Faraday::Timer.timeout(1) do
IO.copy_stream(io, target_io)
end
assert_equal "abcd1234", target_io.string
end
end
unless RUBY_VERSION < '1.9'
def test_read_from_multibyte
File.open(File.dirname(__FILE__) + '/multibyte.txt') do |utf8|
io = composite_io(part("\x86"), Part.new(utf8))
assert_equal bin("\x86\xE3\x83\x95\xE3\x82\xA1\xE3\x82\xA4\xE3\x83\xAB\n"), io.read
end
end
def test_limited_from_multibyte
File.open(File.dirname(__FILE__) + '/multibyte.txt') do |utf8|
io = composite_io(part("\x86"), Part.new(utf8))
assert_equal bin("\x86\xE3\x83"), io.read(3)
assert_equal bin("\x95\xE3\x82"), io.read(3)
assert_equal bin("\xA1\xE3\x82\xA4\xE3\x83\xAB\n"), io.read(8)
end
end
end
def bin(str)
str.force_encoding("BINARY") if str.respond_to?(:force_encoding)
str
end
end
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