def _testThresholdPen():
    """
    >>> from fontPens.printPointPen import PrintPointPen
    >>> from random import seed
    >>> seed(100)
    >>> glyph = _makeTestGlyph()
    >>> pen = ThresholdPointPen(PrintPointPen())
    >>> glyph.drawPoints(pen)
    pen.beginPath()
    pen.addPoint((100, 100), segmentType='line')
    pen.addPoint((900, 100), segmentType='line')
    pen.addPoint((900, 800), segmentType='line')
    pen.addPoint((100, 800), segmentType='line')
    pen.endPath()
    pen.addComponent('a', (1.0, 0.0, 0.0, 1.0, 0.0, 0.0))
    """
