diff options
Diffstat (limited to 'spec/ruby/core/io/print_spec.rb')
-rw-r--r-- | spec/ruby/core/io/print_spec.rb | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/spec/ruby/core/io/print_spec.rb b/spec/ruby/core/io/print_spec.rb new file mode 100644 index 0000000000..e852757385 --- /dev/null +++ b/spec/ruby/core/io/print_spec.rb @@ -0,0 +1,54 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe IO, "#print" do + before :each do + @old_separator = $\ + $\ = '->' + @name = tmp("io_print") + end + + after :each do + $\ = @old_separator + rm_r @name + end + + it "writes $_.to_s followed by $\\ (if any) to the stream if no arguments given" do + o = mock('o') + o.should_receive(:to_s).and_return("mockmockmock") + $_ = o + + touch(@name) { |f| f.print } + IO.read(@name).should == "mockmockmock#{$\}" + + # Set $_ to something known + string = File.open(__FILE__) {|f| f.gets } + + touch(@name) { |f| f.print } + IO.read(@name).should == "#{string}#{$\}" + end + + it "calls obj.to_s and not obj.to_str then writes the record separator" do + o = mock('o') + o.should_not_receive(:to_str) + o.should_receive(:to_s).and_return("hello") + + touch(@name) { |f| f.print(o) } + + IO.read(@name).should == "hello#{$\}" + end + + it "writes each obj.to_s to the stream and appends $\\ (if any) given multiple objects" do + o, o2 = Object.new, Object.new + def o.to_s(); 'o'; end + def o2.to_s(); 'o2'; end + + touch(@name) { |f| f.print(o, o2) } + IO.read(@name).should == "#{o.to_s}#{o2.to_s}#{$\}" + end + + it "raises IOError on closed stream" do + lambda { IOSpecs.closed_io.print("stuff") }.should raise_error(IOError) + end +end + |