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require_relative '../../spec_helper'
require 'open3'
describe "Open3.popen3" do
it "returns in, out, err and a thread waiting the process" do
stdin, out, err, waiter = Open3.popen3(ruby_cmd("print :foo"))
begin
stdin.should be_kind_of IO
out.should be_kind_of IO
err.should be_kind_of IO
waiter.should be_kind_of Thread
out.read.should == "foo"
ensure
stdin.close
out.close
err.close
waiter.join
end
end
it "executes a process with a pipe to read stdout" do
Open3.popen3(ruby_cmd("print :foo")) do |stdin, out, err|
out.read.should == "foo"
end
end
it "executes a process with a pipe to read stderr" do
Open3.popen3(ruby_cmd("STDERR.print :foo")) do |stdin, out, err|
err.read.should == "foo"
end
end
it "executes a process with a pipe to write stdin" do
Open3.popen3(ruby_cmd("print STDIN.read")) do |stdin, out, err|
stdin.write("foo")
stdin.close
out.read.should == "foo"
end
end
end
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