diff options
Diffstat (limited to 'spec/rubyspec/library/stringio/close_read_spec.rb')
-rw-r--r-- | spec/rubyspec/library/stringio/close_read_spec.rb | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/spec/rubyspec/library/stringio/close_read_spec.rb b/spec/rubyspec/library/stringio/close_read_spec.rb new file mode 100644 index 0000000000..59e16385d2 --- /dev/null +++ b/spec/rubyspec/library/stringio/close_read_spec.rb @@ -0,0 +1,36 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "StringIO#close_read" do + before :each do + @io = StringIO.new("example") + end + + it "returns nil" do + @io.close_read.should be_nil + end + + it "prevents further reading" do + @io.close_read + lambda { @io.read(1) }.should raise_error(IOError) + end + + it "allows further writing" do + @io.close_read + @io.write("x").should == 1 + end + + it "raises an IOError when in write-only mode" do + io = StringIO.new("example", "w") + lambda { io.close_read }.should raise_error(IOError) + + io = StringIO.new("example") + io.close_read + ruby_version_is ''...'2.3' do + lambda { io.close_read }.should raise_error(IOError) + end + ruby_version_is '2.3' do + io.close_read.should == nil + end + end +end |