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#!/usr/bin/python
'''Unit tests for QGLBuffer'''
import unittest
from PySide.QtCore import QByteArray
from PySide.QtOpenGL import QGLBuffer, QGLWidget
from helper import UsesQApplication
class QGLBufferTest(UsesQApplication):
def usageCheck(self, t):
w = QGLWidget()
w.makeCurrent()
b = QGLBuffer(t)
self.assertEqual(b.usagePattern(), QGLBuffer.StaticDraw)
b.setUsagePattern(QGLBuffer.DynamicDraw)
self.assert_(b.create())
self.assert_(b.bufferId() != 0)
self.assert_(b.bind())
data = QByteArray("12345")
b.allocate(data)
self.assertEqual(b.size(), data.size())
m = b.map(QGLBuffer.ReadOnly)
self.assertEqual(m.data(), data.data())
b.unmap()
other_data = QByteArray("67")
b.write(0, other_data)
m = b.map(QGLBuffer.ReadOnly)
self.assertEqual(m.mid(0, other_data.size()).data(), other_data.data())
b.unmap()
result, rdata = b.read(0, other_data.size())
print result, rdata
self.assert_(result)
self.assertEqual(other_data.data(), rdata.data())
b.release()
def testUsage(self):
self.usageCheck(QGLBuffer.IndexBuffer)
if __name__ == '__main__':
unittest.main()
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