diff options
Diffstat (limited to 'spec/ruby/core/io/select_spec.rb')
-rw-r--r-- | spec/ruby/core/io/select_spec.rb | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/spec/ruby/core/io/select_spec.rb b/spec/ruby/core/io/select_spec.rb index 4603c1fbbc..3893e7620f 100644 --- a/spec/ruby/core/io/select_spec.rb +++ b/spec/ruby/core/io/select_spec.rb @@ -55,8 +55,8 @@ describe "IO.select" do end end - it "returns supplied objects correctly even when monitoring the same object in different arrays" do - filename = tmp("IO_select_pipe_file") + $$.to_s + it "returns supplied objects correctly when monitoring the same object in different arrays" do + filename = tmp("IO_select_pipe_file") io = File.open(filename, 'w+') result = IO.select [io], [io], nil, 0 result.should == [[io], [io], []] @@ -64,6 +64,17 @@ describe "IO.select" do rm_r filename end + it "returns the pipe read end in read set if the pipe write end is closed concurrently" do + main = Thread.current + t = Thread.new { + Thread.pass until main.stop? + @wr.close + } + IO.select([@rd]).should == [[@rd], [], []] + ensure + t.join + end + it "invokes to_io on supplied objects that are not IO and returns the supplied objects" do # make some data available @wr.write("foobar") @@ -103,6 +114,39 @@ describe "IO.select" do it "raises an ArgumentError when passed a negative timeout" do -> { IO.select(nil, nil, nil, -5)}.should raise_error(ArgumentError) end + + describe "returns the available descriptors when the file descriptor" do + it "is in both read and error arrays" do + @wr.write("foobar") + result = IO.select([@rd], nil, [@rd]) + result.should == [[@rd], [], []] + end + + it "is in both write and error arrays" do + result = IO.select(nil, [@wr], [@wr]) + result.should == [[], [@wr], []] + end + + it "is in both read and write arrays" do + filename = tmp("IO_select_read_write_file") + w = File.open(filename, 'w+') + begin + IO.select([w], [w], []).should == [[w], [w], []] + ensure + w.close + rm_r filename + end + + IO.select([@wr], [@wr], []).should == [[], [@wr], []] + + @wr.write("foobar") + # CRuby on macOS returns [[@rd], [@rd], []], weird but we accept it here, probably only for pipe read-end + [ + [[@rd], [], []], + [[@rd], [@rd], []] + ].should.include? IO.select([@rd], [@rd], []) + end + end end describe "IO.select when passed nil for timeout" do |