Module: FileUtils::TmpFile::Etest

Defined in:
lib/vex/base/filesystem/tmp_file.rb

Instance Method Summary collapse

Instance Method Details

#test_tmpfile ⇒ Object 



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# File 'lib/vex/base/filesystem/tmp_file.rb', line 44

def test_tmpfile
  assert File.exist?(__FILE__)

  # so something successfully via a tmp file
  FileUtils.fast_copy __FILE__, "tmp/copy.dat"
  assert File.exist?("tmp/copy.dat")
  
  FileUtils.tmpfile "tmp/copy.dat" do |dest|
    false
  end

  assert_equal File.size(__FILE__), File.size("tmp/copy.dat")

  FileUtils.tmpfile "tmp/copy.dat" do |dest|
    File.write(dest, "hey")
  end

  assert_equal 3, File.size("tmp/copy.dat")

  FileUtils.fast_copy __FILE__, "tmp/copy.dat"
  assert_equal File.size(__FILE__), File.size("tmp/copy.dat")

  FileUtils.tmpfile "tmp/copy.dat" do |dest|
    File.write(dest, "hey")
    false
  end
  
  assert_equal File.size(__FILE__), File.size("tmp/copy.dat")

  FileUtils.tmpfile "tmp/copy.dat" do |dest|
    File.write(dest, "hey")
    nil
  end

  assert_equal 3, File.size("tmp/copy.dat")

  r = FileUtils.tmpfile "tmp/copy.dat" do |dest|
    File.write(dest, "hey")
    "fourfour"
  end

  assert_equal "fourfour", r
end