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Add failing test to ensure that QgsAbstractGeometry.centroid

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result matches that of GEOS

It doesn't, and reveals the the QGIS native centroid calculation
is quite broken
This commit is contained in:
Nyall Dawson 2017-03-26 14:33:55 +10:00
parent 631c7cd1dd
commit e55fbebf68
1 changed files with 5 additions and 0 deletions
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5
tests/src/python/test_qgsgeometry.py
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@ -4108,6 +4108,11 @@ class TestQgsGeometry(unittest.TestCase):
self.assertTrue(compareWkt(result, exp, 0.00001),
"centroid: mismatch Expected:\n{}\nGot:\n{}\n".format(exp, result))
# QGIS native algorithms are bad!
if False:
result = QgsGeometry(input.geometry().centroid()).exportToWkt()
self.assertTrue(compareWkt(result, exp, 0.00001),
"centroid: mismatch using QgsAbstractGeometry methods Input {} \n Expected:\n{}\nGot:\n{}\n".format(t[0], exp, result))
if __name__ == '__main__':
unittest.main()