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require "../spec_helper"
require "../../support/finalize"
class IO::FileDescriptor
include FinalizeCounter
end
private def shell_command(command)
{% if flag?(:win32) %}
"cmd.exe /c #{Process.quote(command)}"
{% else %}
"/bin/sh -c #{Process.quote(command)}"
{% end %}
end
describe IO::FileDescriptor do
describe "#initialize" do
it "handles closed file descriptor gracefully" do
a, b = IO.pipe
a.close
b.close
fd = IO::FileDescriptor.new(a.fd)
fd.closed?.should be_true
end
end
it "reopen STDIN with the right mode", tags: %w[slow] do
code = %q(puts "#{STDIN.blocking} #{STDIN.info.type}")
compile_source(code) do |binpath|
`#{shell_command %(#{Process.quote(binpath)} < #{Process.quote(binpath)})}`.chomp.should eq("true File")
`#{shell_command %(echo "" | #{Process.quote(binpath)})}`.chomp.should eq("#{{{ flag?(:win32) }}} Pipe")
end
end
describe "#tty?" do
it "returns false for null device" do
File.open(File::NULL) do |f|
f.tty?.should be_false
end
end
it "returns false for standard streams redirected to null device", tags: %w[slow] do
code = %q(print STDIN.tty?, ' ', STDERR.tty?)
compile_source(code) do |binpath|
`#{shell_command %(#{Process.quote(binpath)} < #{File::NULL} 2> #{File::NULL})}`.should eq("false false")
end
end
end
describe "#finalize" do
it "closes" do
pipes = [] of IO::FileDescriptor
assert_finalizes("fd") do
a, b = IO.pipe
pipes << b
a
end
expect_raises(IO::Error) do
pipes.each do |p|
p.puts "123"
end
end
end
it "does not flush" do
with_tempfile "fd-finalize-flush" do |path|
file = File.new(path, "w")
file << "foo"
file.flush
file << "bar"
file.finalize
File.read(path).should eq "foo"
ensure
file.try(&.close) rescue nil
end
end
end
it "opens STDIN in binary mode", tags: %w[slow] do
code = %q(print STDIN.gets_to_end.includes?('\r'))
compile_source(code) do |binpath|
io_in = IO::Memory.new("foo\r\n")
io_out = IO::Memory.new
Process.run(binpath, input: io_in, output: io_out)
io_out.to_s.should eq("true")
end
end
it "opens STDOUT in binary mode", tags: %w[slow] do
code = %q(puts "foo")
compile_source(code) do |binpath|
io = IO::Memory.new
Process.run(binpath, output: io)
io.to_s.should eq("foo\n")
end
end
it "opens STDERR in binary mode", tags: %w[slow] do
code = %q(STDERR.puts "foo")
compile_source(code) do |binpath|
io = IO::Memory.new
Process.run(binpath, error: io)
io.to_s.should eq("foo\n")
end
end
it "does not close if close_on_finalize is false" do
pipes = [] of IO::FileDescriptor
assert_finalizes("fd") do
a, b = IO.pipe
a.close_on_finalize = false
pipes << b
a
end
pipes.each do |p|
p.puts "123"
end
end
it "reopens" do
File.open(datapath("test_file.txt")) do |file1|
File.open(datapath("test_file.ini")) do |file2|
file2.reopen(file1)
file2.gets.should eq("Hello World")
end
end
end
{% unless flag?(:win32) %}
describe "close_on_exec" do
it "sets close on exec on the reopened standard descriptors" do
unless STDIN.fd == Crystal::System::FileDescriptor::STDIN_HANDLE
STDIN.close_on_exec?.should be_true
end
unless STDOUT.fd == Crystal::System::FileDescriptor::STDOUT_HANDLE
STDOUT.close_on_exec?.should be_true
end
unless STDERR.fd == Crystal::System::FileDescriptor::STDERR_HANDLE
STDERR.close_on_exec?.should be_true
end
end
it "is enabled by default (open)" do
File.open(datapath("test_file.txt")) do |file|
file.close_on_exec?.should be_true
end
end
it "is enabled by default (pipe)" do
IO::FileDescriptor.pipe.each do |fd|
fd.close_on_exec?.should be_true
fd.close_on_exec?.should be_true
end
end
it "can be disabled and reenabled" do
File.open(datapath("test_file.txt")) do |file|
file.close_on_exec = false
file.close_on_exec?.should be_false
file.close_on_exec = true
file.close_on_exec?.should be_true
end
end
it "is copied on reopen" do
File.open(datapath("test_file.txt")) do |file1|
file1.close_on_exec = true
File.open(datapath("test_file.ini")) do |file2|
file2.reopen(file1)
file2.close_on_exec?.should be_true
end
file1.close_on_exec = false
File.open(datapath("test_file.ini")) do |file3|
file3.reopen(file1)
file3.close_on_exec?.should be_false
end
end
end
end
{% end %}
typeof(STDIN.noecho { })
typeof(STDIN.noecho!)
typeof(STDIN.echo { })
typeof(STDIN.echo!)
typeof(STDIN.cooked { })
typeof(STDIN.cooked!)
typeof(STDIN.raw { })
typeof(STDIN.raw!)
end
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