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# The PyMca X-Ray Fluorescence Toolkit
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from __future__ import absolute_import, division, print_function, \
    unicode_literals

__author__ = "T. Vincent - ESRF Data Analysis"
__contact__ = "tvincent@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
__doc__ = """Tests for Qhull wrapper."""


import numpy
import threading
import unittest

import PyMca5.Object3D.Object3DQhull as qhull


class TestDelaunay(unittest.TestCase):

    def testVersion(self):
        self.assertTrue(qhull.__version__)

    def _test(self, dtype):
        # Set of points for test
        tests = (
            # 2D square
            ((0, 0), (0, 1), (1, 1), (2, 0)),
            # 3D
            ((0, 0, 0), (1, 0, 0), (1, 1, 0), (0, 2, 0), (0, 0, 3)),
        )

        for points in tests:
            points = numpy.array(points, dtype=dtype)
            indices = qhull.delaunay(points, dtype=dtype)
            self.assertEqual(len(indices), 2)
            for simplex in indices:
                self.assertEqual(len(simplex), len(points[0]) + 1)

    def testFloat32(self):
        self._test(numpy.float32)

    def testFloat64(self):
        self._test(numpy.float64)


if __name__ == '__main__':
    import sys
    unittest.main(argv=sys.argv)