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-rw-r--r--test/ruby/test_io_buffer.rb8
1 files changed, 6 insertions, 2 deletions
diff --git a/test/ruby/test_io_buffer.rb b/test/ruby/test_io_buffer.rb
index c3ab09f27e..d5ba3266c7 100644
--- a/test/ruby/test_io_buffer.rb
+++ b/test/ruby/test_io_buffer.rb
@@ -252,13 +252,17 @@ class TestIOBuffer < Test::Unit::TestCase
chunk = buffer.get_string(0, message.bytesize, Encoding::BINARY)
assert_equal Encoding::BINARY, chunk.encoding
- assert_raise_with_message(ArgumentError, /exceeds buffer size/) do
+ assert_raise_with_message(ArgumentError, /bigger than the buffer size/) do
buffer.get_string(0, 129)
end
- assert_raise_with_message(ArgumentError, /exceeds buffer size/) do
+ assert_raise_with_message(ArgumentError, /bigger than the buffer size/) do
buffer.get_string(129)
end
+
+ assert_raise_with_message(ArgumentError, /Offset can't be negative/) do
+ buffer.get_string(-1)
+ end
end
# We check that values are correctly round tripped.