diff options
Diffstat (limited to 'spec/ruby/core/io/syswrite_spec.rb')
| -rw-r--r-- | spec/ruby/core/io/syswrite_spec.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/spec/ruby/core/io/syswrite_spec.rb b/spec/ruby/core/io/syswrite_spec.rb index a28cc62174..8bf61a27c3 100644 --- a/spec/ruby/core/io/syswrite_spec.rb +++ b/spec/ruby/core/io/syswrite_spec.rb @@ -29,6 +29,16 @@ describe "IO#syswrite on a file" do end end + it "does not modify the passed argument" do + File.open(@filename, "w") do |f| + f.set_encoding(Encoding::IBM437) + # A character whose codepoint differs between UTF-8 and IBM437 + f.syswrite("ƒ".freeze) + end + + File.binread(@filename).bytes.should == [198, 146] + end + it "warns if called immediately after a buffered IO#write" do @file.write("abcde") -> { @file.syswrite("fghij") }.should complain(/syswrite/) @@ -68,4 +78,5 @@ end describe "IO#syswrite" do it_behaves_like :io_write, :syswrite + it_behaves_like :io_write_no_transcode, :syswrite end |