diff options
author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-11-19 08:10:48 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-11-19 08:10:48 +0000 |
commit | 412b6b5b0234a21b91fafc101fc8175b8e1b97f8 (patch) | |
tree | bf9c68f3433cfd70a1076b84caddb9e9b803be63 /spec/ruby | |
parent | 38adc0c1e08c0b754c55624e9a0661a633fa7997 (diff) |
io.c: ungetbyte silently ignores upper bits
The behaviour of IO#ungetbyte has been depending on the width of
Fixnums. Fixnums should be invisible nowadays. It must be a
bug. Fix [Bug #14359]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65802 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby')
-rw-r--r-- | spec/ruby/core/io/ungetbyte_spec.rb | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/spec/ruby/core/io/ungetbyte_spec.rb b/spec/ruby/core/io/ungetbyte_spec.rb index c22661582b..b7de1b7a6d 100644 --- a/spec/ruby/core/io/ungetbyte_spec.rb +++ b/spec/ruby/core/io/ungetbyte_spec.rb @@ -36,9 +36,25 @@ describe "IO#ungetbyte" do @io.getbyte.should == 97 end - it "puts back one byte for an Integer argument" do - @io.ungetbyte(4095).should be_nil - @io.getbyte.should == 255 + ruby_version_is ''...'2.6' do + it "puts back one byte for a Fixnum argument..." do + @io.ungetbyte(4095).should be_nil + @io.getbyte.should == 255 + end + + it "... but not for Bignum argument (eh?)" do + lambda { + @io.ungetbyte(0x4f7574206f6620636861722072616e6765) + }.should raise_error(TypeError) + end + end + + ruby_version_is '2.6' do + it "is an RangeError if the integr is not in 8bit" do + for i in [4095, 0x4f7574206f6620636861722072616e6765] do + lambda { @io.ungetbyte(i) }.should raise_error(RangeError) + end + end end it "raises an IOError if the IO is closed" do |