c_glib/test/test-memory-mapped-input-stream.rb

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class TestMemoryMappedInputStream < Test::Unit::TestCase
  def test_new
    tempfile = Tempfile.open("arrow-memory-mapped-input-stream")
    tempfile.write("Hello")
    tempfile.close
    input = Arrow::MemoryMappedInputStream.new(tempfile.path)
    begin
      buffer = input.read(5)
      assert_equal("Hello", buffer.data.to_s)
    ensure
      input.close
    end
  end

  def test_size
    tempfile = Tempfile.open("arrow-memory-mapped-input-stream")
    tempfile.write("Hello")
    tempfile.close
    input = Arrow::MemoryMappedInputStream.new(tempfile.path)
    begin
      assert_equal(5, input.size)
    ensure
      input.close
    end
  end

  def test_read
    tempfile = Tempfile.open("arrow-memory-mapped-input-stream")
    tempfile.write("Hello World")
    tempfile.close
    input = Arrow::MemoryMappedInputStream.new(tempfile.path)
    begin
      buffer = input.read(5)
      assert_equal("Hello", buffer.data.to_s)
    ensure
      input.close
    end
  end

  def test_read_at
    tempfile = Tempfile.open("arrow-memory-mapped-input-stream")
    tempfile.write("Hello World")
    tempfile.close
    input = Arrow::MemoryMappedInputStream.new(tempfile.path)
    begin
      buffer = input.read_at(6, 5)
      assert_equal("World", buffer.data.to_s)
    ensure
      input.close
    end
  end


  def test_mode
    tempfile = Tempfile.open("arrow-memory-mapped-input-stream")
    tempfile.write("Hello World")
    tempfile.close
    input = Arrow::MemoryMappedInputStream.new(tempfile.path)
    begin
      assert_equal(Arrow::FileMode::READWRITE, input.mode)
    ensure
      input.close
    end
  end
end