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Merged
pull merged 1 commit into from
Apr 20, 2026
+26 −0
Merged

[pull] master from ruby:master #948

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26 changes: 26 additions & 0 deletions test/ruby/test_string.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -998,6 +998,32 @@ def test_bytes
assert_equal [65, 66, 67], res
end

def test_getbyte
s = S('foo')
assert_equal(102, s.getbyte(0))
assert_equal(111, s.getbyte(2))
assert_equal(102, s.getbyte(-3))
assert_nil(s.getbyte(3))
assert_nil(s.getbyte(-4))
assert_nil(S('').getbyte(0))
assert_nil(S('').getbyte(-1))
end

def test_setbyte
s = S('xyzzy')
assert_equal(129, s.setbyte(2, 129))
assert_equal(S("xy\x81zy").force_encoding(s.encoding), s)

s = S('foo')
s.setbyte(-3, 98)
assert_equal(S('boo').force_encoding(s.encoding), s)

assert_raise(IndexError) { S('foo').setbyte(3, 0) }
assert_raise(IndexError) { S('foo').setbyte(-4, 0) }

assert_raise(FrozenError) { S('foo').freeze.setbyte(0, 0x61) }
end

def test_each_codepoint
# Single byte optimization
assert_equal 65, S("ABC").each_codepoint.next
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