diff options
Diffstat (limited to 'spec/ruby/core/process/ppid_spec.rb')
-rw-r--r-- | spec/ruby/core/process/ppid_spec.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/spec/ruby/core/process/ppid_spec.rb b/spec/ruby/core/process/ppid_spec.rb new file mode 100644 index 0000000000..ec6ce865ee --- /dev/null +++ b/spec/ruby/core/process/ppid_spec.rb @@ -0,0 +1,23 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Process.ppid" do + with_feature :fork do + it "returns the process id of the parent of this process" do + + read, write = IO.pipe + + child_pid = Process.fork { + read.close + write << "#{Process.ppid}\n" + write.close + exit! + } + + write.close + pid = read.gets + read.close + Process.wait(child_pid) + pid.to_i.should == Process.pid + end + end +end |