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Keep the arguments of GzipReader#each_line when returning an enumerator #179

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Keep the arguments of GzipReader#each_line when returning an enumerator #179

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2 changes: 1 addition & 1 deletion ext/zlib/zlib.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4559,7 +4559,7 @@ rb_gzreader_each(int argc, VALUE *argv, VALUE obj)
{
VALUE str;

RETURN_ENUMERATOR(obj, 0, 0);
RETURN_ENUMERATOR(obj, argc, argv);

while (!NIL_P(str = gzreader_gets(argc, argv, obj))) {
rb_yield(str);
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9 changes: 9 additions & 0 deletions test/zlib/test_zlib.rb
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Expand Up @@ -1367,6 +1367,15 @@ def test_reader_wrap
}
end

def test_each_line_enumerator_arguments
# each_line(sep, limit) without a block must keep its arguments
s = Zlib.gzip("a,b,c\nd,e\n")
assert_equal(["a,", "b,", "c\nd,", "e\n"], Zlib::GzipReader.new(StringIO.new(s)).each_line(",").to_a)
assert_equal(["a,b", ",c\n", "d,e", "\n"], Zlib::GzipReader.new(StringIO.new(s)).each_line(3).to_a)
assert_equal(["a,", "b,", "c\n", "d,", "e\n"], Zlib::GzipReader.new(StringIO.new(s)).each_line(",", 2).to_a)
assert_equal(["a,", "b,"], Zlib::GzipReader.new(StringIO.new(s)).each(",").first(2))
end

def test_corrupted_header
gz = Zlib::GzipWriter.new(StringIO.new(s = "".dup))
gz.orig_name = "X"
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