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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Project: Fable Input Output
# https://github.com/silx-kit/fabio
#
# Copyright (C) European Synchrotron Radiation Facility, Grenoble, France
#
# Principal author: Jérôme Kieffer (Jerome.Kieffer@ESRF.eu)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""
# Unit tests for raxis images
28/11/2014
"""
from __future__ import print_function, with_statement, division
import unittest
import os
import logging
logger = logging.getLogger(__name__)
import fabio
from fabio.raxisimage import raxisimage
from .utilstest import UtilsTest
# filename dim1 dim2 min max mean stddev
TESTIMAGES = """mgzn-20hpt.img 2300 1280 16 15040 287.82 570.72
mgzn-20hpt.img.bz2 2300 1280 16 15040 287.82 570.72
mgzn-20hpt.img.gz 2300 1280 16 15040 287.82 570.72"""
# Seek from end is not supported with gzip
class TestRaxisImage(unittest.TestCase):
def setUp(self):
"""
download images
"""
self.mar = UtilsTest.getimage("mgzn-20hpt.img.bz2")[:-4]
def test_read(self):
"""
Test the reading of Mar345 images
"""
for line in TESTIMAGES.split('\n'):
vals = line.strip().split()
name = vals[0]
logger.debug("Testing file %s" % name)
dim1, dim2 = [int(x) for x in vals[1:3]]
mini, maxi, mean, stddev = [float(x) for x in vals[3:]]
obj = raxisimage()
obj.read(os.path.join(os.path.dirname(self.mar), name))
self.assertAlmostEqual(mini, obj.getmin(), 2, "getmin [%s,%s]" % (mini, obj.getmin()))
self.assertAlmostEqual(maxi, obj.getmax(), 2, "getmax [%s,%s]" % (maxi, obj.getmax()))
self.assertAlmostEqual(mean, obj.getmean(), 2, "getmean [%s,%s]" % (mean, obj.getmean()))
self.assertAlmostEqual(stddev, obj.getstddev(), 2, "getstddev [%s,%s]" % (stddev, obj.getstddev()))
self.assertEqual(dim1, obj.dim1, "dim1")
self.assertEqual(dim2, obj.dim2, "dim2")
self.assertNotEqual(obj.dim1, obj.dim2, "dim2!=dim1")
def _test_write(self):
self.skipTest("Write is not implemented")
"Test writing with self consistency at the fabio level"
for line in TESTIMAGES.split("\n"):
logger.debug("Processing file: %s" % line)
vals = line.split()
name = vals[0]
obj = raxisimage()
obj.read(os.path.join(os.path.dirname(self.mar), name))
obj.write(os.path.join(UtilsTest.tempdir, name))
other = raxisimage()
other.read(os.path.join(UtilsTest.tempdir, name))
self.assertEqual(abs(obj.data - other.data).max(), 0, "data are the same")
for key in obj.header:
if key == "filename":
continue
self.assertTrue(key in other.header, "Key %s is in header" % key)
self.assertEqual(obj.header[key], other.header[key], "value are the same for key %s: [%s|%s]" % (key, obj.header[key], other.header[key]))
os.unlink(os.path.join(UtilsTest.tempdir, name))
def test_memoryleak(self):
"""
This test takes a lot of time, so only in debug mode.
"""
N = 1000
if logger.getEffectiveLevel() <= logging.INFO:
logger.debug("Testing for memory leak")
for i in range(N):
_img = fabio.open(self.mar)
print("Reading #%s/%s" % (i, N))
def suite():
loadTests = unittest.defaultTestLoader.loadTestsFromTestCase
testsuite = unittest.TestSuite()
testsuite.addTest(loadTests(TestRaxisImage))
return testsuite
if __name__ == '__main__':
runner = unittest.TextTestRunner()
runner.run(suite())
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