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path: root/spec/rubyspec/core/io/close_on_exec_spec.rb
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require File.expand_path('../../../spec_helper', __FILE__)

describe :io_close_on_exec, shared: true do
  it "sets the close-on-exec flag if true" do
    @io.close_on_exec = true
    @io.close_on_exec?.should == true
  end

  it "sets the close-on-exec flag if non-false" do
    @io.close_on_exec = :true
    @io.close_on_exec?.should == true
  end

  it "unsets the close-on-exec flag if false" do
    @io.close_on_exec = true
    @io.close_on_exec = false
    @io.close_on_exec?.should == false
  end

  it "unsets the close-on-exec flag if nil" do
    @io.close_on_exec = true
    @io.close_on_exec = nil
    @io.close_on_exec?.should == false
  end

  it "ensures the IO's file descriptor is closed in exec'ed processes" do
    require 'fcntl'
    @io.close_on_exec = true
    (@io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC).should == Fcntl::FD_CLOEXEC
  end

  it "raises IOError if called on a closed IO" do
    @io.close
    lambda { @io.close_on_exec = true }.should raise_error(IOError)
  end

  it "returns nil" do
    @io.send(:close_on_exec=, true).should be_nil
  end
end

describe "IO#close_on_exec=" do
  before :each do
    @name = tmp('io_close_on_exec.txt')
    @io = new_io @name
  end

  after :each do
    @io.close unless @io.closed?
    rm_r @name
  end

  platform_is :windows do
    ruby_version_is ""..."2.3" do
      it "returns false from #respond_to?" do
        @io.respond_to?(:close_on_exec=).should be_false
      end

      it "raises a NotImplementedError when called" do
        lambda { @io.close_on_exec = true }.should raise_error(NotImplementedError)
      end
    end

    ruby_version_is "2.3" do
      it_should_behave_like :io_close_on_exec
    end
  end

  platform_is_not :windows do
    it_should_behave_like :io_close_on_exec
  end
end


describe :io_is_close_on_exec, shared: true do
  it "returns true by default" do
    @io.close_on_exec?.should == true
  end

  it "returns true if set" do
    @io.close_on_exec = true
    @io.close_on_exec?.should == true
  end

  it "raises IOError if called on a closed IO" do
    @io.close
    lambda { @io.close_on_exec? }.should raise_error(IOError)
  end
end

describe "IO#close_on_exec?" do
  before :each do
    @name = tmp('io_close_on_exec.txt')
    @io = new_io @name
  end

  after :each do
    @io.close unless @io.closed?
    rm_r @name
  end

  platform_is :windows do
    ruby_version_is ""..."2.3" do
      it "returns false from #respond_to?" do
        @io.respond_to?(:close_on_exec?).should be_false
      end

      it "raises a NotImplementedError when called" do
        lambda { @io.close_on_exec? }.should raise_error(NotImplementedError)
      end
    end

    ruby_version_is "2.3" do
      it_should_behave_like :io_close_on_exec
    end
  end

  platform_is_not :windows do
    it_should_behave_like :io_is_close_on_exec
  end
end