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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
ruby_version_is ''...'3.2' do
require 'io/wait'
end
describe "IO#wait" do
before :each do
@io = File.new(__FILE__ )
if /mswin|mingw/ =~ RUBY_PLATFORM
require 'socket'
@r, @w = Socket.pair(Socket::AF_INET, Socket::SOCK_STREAM, 0)
else
@r, @w = IO.pipe
end
end
after :each do
@io.close unless @io.closed?
@r.close unless @r.closed?
@w.close unless @w.closed?
end
context "[events, timeout] passed" do
ruby_version_is ""..."3.2" do
it "returns self when the READABLE event is ready during the timeout" do
@w.write('data to read')
@r.wait(IO::READABLE, 2).should.equal?(@r)
end
it "returns self when the WRITABLE event is ready during the timeout" do
@w.wait(IO::WRITABLE, 0).should.equal?(@w)
end
end
ruby_version_is "3.2" do
it "returns events mask when the READABLE event is ready during the timeout" do
@w.write('data to read')
@r.wait(IO::READABLE, 2).should == IO::READABLE
end
it "returns events mask when the WRITABLE event is ready during the timeout" do
@w.wait(IO::WRITABLE, 0).should == IO::WRITABLE
end
end
it "waits for the READABLE event to be ready" do
@r.wait(IO::READABLE, 0).should == nil
@w.write('data to read')
@r.wait(IO::READABLE, 0).should_not == nil
end
it "waits for the WRITABLE event to be ready" do
written_bytes = IOWaitSpec.exhaust_write_buffer(@w)
@w.wait(IO::WRITABLE, 0).should == nil
@r.read(written_bytes)
@w.wait(IO::WRITABLE, 0).should_not == nil
end
it "returns nil when the READABLE event is not ready during the timeout" do
@w.wait(IO::READABLE, 0).should == nil
end
it "returns nil when the WRITABLE event is not ready during the timeout" do
IOWaitSpec.exhaust_write_buffer(@w)
@w.wait(IO::WRITABLE, 0).should == nil
end
it "raises IOError when io is closed (closed stream (IOError))" do
@io.close
-> { @io.wait(IO::READABLE, 0) }.should raise_error(IOError, "closed stream")
end
ruby_version_is "3.2" do
it "raises ArgumentError when events is not positive" do
-> { @w.wait(0, 0) }.should raise_error(ArgumentError, "Events must be positive integer!")
-> { @w.wait(-1, 0) }.should raise_error(ArgumentError, "Events must be positive integer!")
end
end
it "changes thread status to 'sleep' when waits for READABLE event" do
t = Thread.new { @r.wait(IO::READABLE, 10) }
sleep 1
t.status.should == 'sleep'
t.kill
t.join # Thread#kill doesn't wait for the thread to end
end
it "changes thread status to 'sleep' when waits for WRITABLE event" do
written_bytes = IOWaitSpec.exhaust_write_buffer(@w)
t = Thread.new { @w.wait(IO::WRITABLE, 10) }
sleep 1
t.status.should == 'sleep'
t.kill
t.join # Thread#kill doesn't wait for the thread to end
end
end
context "[timeout, mode] passed" do
it "accepts :r, :read, :readable mode to check READABLE event" do
@io.wait(0, :r).should == @io
@io.wait(0, :read).should == @io
@io.wait(0, :readable).should == @io
end
it "accepts :w, :write, :writable mode to check WRITABLE event" do
@io.wait(0, :w).should == @io
@io.wait(0, :write).should == @io
@io.wait(0, :writable).should == @io
end
it "accepts :rw, :read_write, :readable_writable mode to check READABLE and WRITABLE events" do
@io.wait(0, :rw).should == @io
@io.wait(0, :read_write).should == @io
@io.wait(0, :readable_writable).should == @io
end
it "accepts a list of modes" do
@io.wait(0, :r, :w, :rw).should == @io
end
# It works at least since 2.7 but by some reason may fail on 3.1
ruby_version_is "3.2" do
it "accepts timeout and mode in any order" do
@io.wait(0, :r).should == @io
@io.wait(:r, 0).should == @io
@io.wait(:r, 0, :w).should == @io
end
end
it "raises ArgumentError when passed wrong Symbol value as mode argument" do
-> { @io.wait(0, :wrong) }.should raise_error(ArgumentError, "unsupported mode: wrong")
end
# It works since 3.0 but by some reason may fail on 3.1
ruby_version_is "3.2" do
it "raises ArgumentError when several Integer arguments passed" do
-> { @w.wait(0, 10, :r) }.should raise_error(ArgumentError, "timeout given more than once")
end
end
ruby_version_is "3.2" do
it "raises IOError when io is closed (closed stream (IOError))" do
@io.close
-> { @io.wait(0, :r) }.should raise_error(IOError, "closed stream")
end
end
end
end
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