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# frozen_string_literal: false
require 'test/unit'
require_relative 'ut_eof'
class TestPipe < Test::Unit::TestCase
include TestEOF
def open_file(content)
r, w = IO.pipe
w << content
w.close
begin
yield r
ensure
r.close
end
end
class WithConversion < self
def open_file(content)
r, w = IO.pipe
w << content
w.close
r.set_encoding("us-ascii:utf-8")
begin
yield r
ensure
r.close
end
end
end
def test_stdout_epipe
assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
begin;
io = STDOUT
begin
save = io.dup
IO.popen("echo", "w", out: IO::NULL) do |f|
io.reopen(f)
Process.wait(f.pid)
assert_raise(Errno::EPIPE) do
io.print "foo\n"
end
end
ensure
io.reopen(save)
end
end;
end
end
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