diff options
Diffstat (limited to 'spec/ruby/core/io/close_write_spec.rb')
-rw-r--r-- | spec/ruby/core/io/close_write_spec.rb | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/spec/ruby/core/io/close_write_spec.rb b/spec/ruby/core/io/close_write_spec.rb new file mode 100644 index 0000000000..c901aac499 --- /dev/null +++ b/spec/ruby/core/io/close_write_spec.rb @@ -0,0 +1,84 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "IO#close_write" do + before :each do + @io = IO.popen 'cat', 'r+' + @path = tmp('io.close.txt') + end + + after :each do + @io.close unless @io.closed? + rm_r @path + end + + it "closes the write end of a duplex I/O stream" do + @io.close_write + + lambda { @io.write "attempt to write" }.should raise_error(IOError) + end + + ruby_version_is ''...'2.3' do + it "raises an IOError on subsequent invocations" do + @io.close_write + + lambda { @io.close_write }.should raise_error(IOError) + end + end + + ruby_version_is '2.3' do + it "does nothing on subsequent invocations" do + @io.close_write + + @io.close_write.should be_nil + end + end + + it "allows subsequent invocation of close" do + @io.close_write + + lambda { @io.close }.should_not raise_error + end + + it "raises an IOError if the stream is readable and not duplexed" do + io = File.open @path, 'w+' + + begin + lambda { io.close_write }.should raise_error(IOError) + ensure + io.close unless io.closed? + end + end + + it "closes the stream if it is neither readable nor duplexed" do + io = File.open @path, 'w' + + io.close_write + + io.closed?.should == true + end + + it "flushes and closes the write stream" do + @io.puts '12345' + + @io.close_write + + @io.read.should == "12345\n" + end + + ruby_version_is ''...'2.3' do + it "raises IOError on closed stream" do + @io.close + + lambda { @io.close_write }.should raise_error(IOError) + end + end + + ruby_version_is '2.3' do + it "does nothing on closed stream" do + @io.close + + @io.close_write.should be_nil + end + end +end |