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[Win32] Negative length IO#sysread

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Raise `ArgumentError` in `IO#sysread` on Windows when given a negative
length.

Fixes [Bug #18880]
This commit is contained in:
Jeremy Bopp 2022-09-11 09:08:14 -05:00 • committed by GitHub
parent 472e7b8518
commit 684353fc03
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Notes: git 2022-09-11 23:08:39 +09:00 
Merged: https://github.com/ruby/ruby/pull/6354

Merged-By: nobu <nobu@ruby-lang.org>
2 changed files with 10 additions and 1 deletions
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8
test/ruby/test_io.rb
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@ -2213,6 +2213,14 @@ class TestIO < Test::Unit::TestCase
end)
end
def test_sysread_with_negative_length
make_tempfile {|t|
open(t.path) do |f|
assert_raise(ArgumentError) { f.sysread(-1) }
end
}
end
def test_flag
make_tempfile {|t|
assert_raise(ArgumentError) do