ruby/red-arrow/test/test-file-output-stream.rb

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#
#   http://www.apache.org/licenses/LICENSE-2.0
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class TestFileOutputStream < Test::Unit::TestCase
  sub_test_case(".open") do
    def setup
      @file = Tempfile.open("arrow-file-output-stream")
      @file.write("Hello")
      @file.close
    end

    def test_default
      Arrow::FileOutputStream.open(@file.path) do |file|
        file.write(" World")
      end
      assert_equal(" World", File.read(@file.path))
    end

    def test_options_append
      Arrow::FileOutputStream.open(@file.path, append: true) do |file|
        file.write(" World")
      end
      assert_equal("Hello World", File.read(@file.path))
    end

    def test_append_true
      Arrow::FileOutputStream.open(@file.path, true) do |file|
        file.write(" World")
      end
      assert_equal("Hello World", File.read(@file.path))
    end

    def test_append_false
      Arrow::FileOutputStream.open(@file.path, false) do |file|
        file.write(" World")
      end
      assert_equal(" World", File.read(@file.path))
    end
  end
end