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-rw-r--r--spec/ruby/core/io/write_nonblock_spec.rb11
1 files changed, 11 insertions, 0 deletions
diff --git a/spec/ruby/core/io/write_nonblock_spec.rb b/spec/ruby/core/io/write_nonblock_spec.rb
index a8b9ce0a36..c403c864fd 100644
--- a/spec/ruby/core/io/write_nonblock_spec.rb
+++ b/spec/ruby/core/io/write_nonblock_spec.rb
@@ -31,6 +31,16 @@ platform_is_not :windows 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.write_nonblock("ƒ".freeze)
+ end
+
+ File.binread(@filename).bytes.should == [198, 146]
+ end
+
it "checks if the file is writable if writing zero bytes" do
-> {
@readonly_file.write_nonblock("")
@@ -40,6 +50,7 @@ platform_is_not :windows do
describe "IO#write_nonblock" do
it_behaves_like :io_write, :write_nonblock
+ it_behaves_like :io_write_no_transcode, :write_nonblock
end
end