def METHOD_NAME(self):
    """Test alpha transparency in setData"""
    _pts = 100
    _levels = 100
    _fwhm = 50
    x = numpy.random.rand(_pts)*_levels
    y = numpy.random.rand(_pts)*_levels
    value = numpy.random.rand(_pts)*_levels
    x0 = x[int(_pts/2)]
    y0 = x[int(_pts/2)]
    #2D Gaussian kernel
    alpha = numpy.exp(-4*numpy.log(2) * ((x-x0)**2 + (y-y0)**2) / _fwhm**2)
    self.plot.setData(x, y, value, alpha=alpha)
    self.qapp.processEvents()
    alphaData = self.plot.getScatterItem().getAlphaData()
    self.assertTrue(numpy.all(numpy.equal(alpha, alphaData)))