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IO::Buffer: Fill the test for IO::Buffer#clear

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Nobuyoshi Nakada 2025-11-22 23:40:35 +09:00 committed by Nobuyoshi Nakada
parent 87274c7203
commit f430fbbfac
Notes: git 2025-12-17 03:36:14 +00:00 
Merged: https://github.com/ruby/ruby/pull/15599
1 changed files with 15 additions and 1 deletions
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16
test/ruby/test_io_buffer.rb
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@ -489,7 +489,21 @@ class TestIOBuffer < Test::Unit::TestCase
def test_clear
buffer = IO::Buffer.new(16)
buffer.set_string("Hello World!")
assert_equal "\0" * 16, buffer.get_string
buffer.clear(1)
assert_equal "\1" * 16, buffer.get_string
buffer.clear(2, 1, 2)
assert_equal "\1" + "\2"*2 + "\1"*13, buffer.get_string
buffer.clear(2, 1)
assert_equal "\1" + "\2"*15, buffer.get_string
buffer.clear(260)
assert_equal "\4" * 16, buffer.get_string
assert_raise(TypeError) {buffer.clear("x")}
assert_raise(ArgumentError) {buffer.clear(0, 20)}
assert_raise(ArgumentError) {buffer.clear(0, 0, 20)}
assert_raise(ArgumentError) {buffer.clear(0, 10, 10)}
assert_raise(ArgumentError) {buffer.clear(0, (1<<64)-8, 10)}
end
def test_invalidation