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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Project: X-ray image reader
# https://github.com/silx-kit/fabio
#
# Copyright (C) 2016 Univeristy Köln, Germany
#
# Principal author: Clemens Prescher (c.prescher@uni-koeln.de)
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
__authors__ = ["Clemens Prescher"]
__contact__ = "c.prescher@uni-koeln.de"
__license__ = "MIT"
__copyright__ = "Clemens Prescher/Univeristy Köln, Germany"
__date__ = "03/04/2020"
import unittest
import numpy
import logging
logger = logging.getLogger(__name__)
import fabio
from fabio.speimage import SpeImage
from ..utilstest import UtilsTest
class TestSpeImage(unittest.TestCase):
@classmethod
def setUpClass(cls):
super(TestSpeImage, cls).setUpClass()
cls.v2_spe_filename = UtilsTest.getimage('v2.SPE.bz2')[:-4]
cls.v2_converted_spe_filename = UtilsTest.getimage('v2_converted.SPE.bz2')[:-4]
cls.v3_spe_filename = UtilsTest.getimage('v3.spe.bz2')[:-4]
cls.v3_custom_roi_filename = UtilsTest.getimage('v3_custom_roi.spe.bz2')[:-4]
cls.v3_2frames_filename = UtilsTest.getimage('v3_2frames.spe.bz2')[:-4]
@classmethod
def tearDownClass(cls):
super(TestSpeImage, cls).tearDownClass()
def setUp(self):
self.v2_spe_file = SpeImage()
self.v2_spe_file.read(self.v2_spe_filename)
self.v3_spe_file = SpeImage()
self.v3_spe_file.read(self.v3_spe_filename)
self.v2_converted_spe_file = SpeImage()
self.v2_converted_spe_file.read(self.v2_converted_spe_filename)
def tearDown(self):
unittest.TestCase.tearDown(self)
# free the associated memory
self.v2_spe_file = self.v3_spe_file = self.v2_converted_spe_file = None
def test_reading_version2_spe(self):
self.assertEqual(self.v2_spe_file.header['version'], 2)
self.assertEqual(self.v3_spe_file.header['version'], 3)
self.assertEqual(self.v2_converted_spe_file.header['version'], 3)
def test_calibration(self):
self.assertGreater(len(self.v2_spe_file.header['x_calibration']), 0)
self.assertGreater(len(self.v3_spe_file.header['x_calibration']), 0)
self.assertGreater(len(self.v2_converted_spe_file.header['x_calibration']), 0)
#
def test_time(self):
self.assertEqual(self.v2_spe_file.header['time'], "07/13/2013 19:42:23")
self.assertEqual(self.v3_spe_file.header['time'], "09/06/2013 16:50:39.445678")
self.assertEqual(self.v2_converted_spe_file.header['time'], "05/10/2013 10:34:27")
def test_exposure_time(self):
self.assertEqual(self.v2_spe_file.header['exposure_time'], 0.5)
self.assertEqual(self.v3_spe_file.header['exposure_time'], 0.1)
self.assertEqual(self.v2_converted_spe_file.header['exposure_time'], 0.18)
def test_detector(self):
self.assertEqual(self.v2_spe_file.header['detector'], 'unspecified')
self.assertEqual(self.v3_spe_file.header['detector'], "PIXIS: 100BR")
self.assertEqual(self.v2_converted_spe_file.header['detector'], 'unspecified')
def test_grating(self):
self.assertEqual(self.v2_spe_file.header['grating'], '300.0')
self.assertEqual(self.v3_spe_file.header['grating'], '860nm 300')
self.assertEqual(self.v2_converted_spe_file.header['grating'], '300.0')
def test_center_wavelength(self):
self.assertEqual(self.v2_spe_file.header['center_wavelength'], 750)
self.assertEqual(self.v3_spe_file.header['center_wavelength'], 500)
self.assertEqual(self.v2_converted_spe_file.header['center_wavelength'], 750)
def test_roi(self):
self.assertEqual(self.v3_spe_file.header['roi'], (0, 1024, 0, 100))
self.v3_custom_region = SpeImage()
self.v3_custom_region.read(self.v3_custom_roi_filename)
self.assertEqual(self.v3_custom_region.header['roi'], (100, 600, 10, 60))
self.assertEqual(len(self.v3_custom_region.header['x_calibration']),
self.v3_custom_region.header['x_dim'])
def test_read_data(self):
self.assertEqual(self.v2_spe_file.data.shape, (100, 1340))
self.assertEqual(self.v3_spe_file.data.shape, (100, 1024))
self.assertEqual(self.v2_converted_spe_file.data.shape, (100, 1340))
def test_multiple_frames(self):
self.v3_2frames_file = SpeImage()
self.v3_2frames_file.read(self.v3_2frames_filename)
self.assertEqual(self.v3_2frames_file.data.shape, (255, 1024))
frame1 = self.v3_2frames_file.data
self.v3_2frames_file.read(self.v3_2frames_filename, 1)
frame2 = self.v3_2frames_file.data
self.assertFalse(numpy.array_equal(frame1, frame2))
self.assertEqual(frame1.shape, frame2.shape)
def test_fabio_integration(self):
v2_file = fabio.open(self.v2_spe_filename)
v3_file = fabio.open(self.v3_spe_filename)
v2_file_gz = fabio.open(self.v2_spe_filename + ".gz")
v3_file_gz = fabio.open(self.v3_spe_filename + ".gz")
v2_file_bz = fabio.open(self.v2_spe_filename + ".bz2")
v3_file_bz = fabio.open(self.v3_spe_filename + ".bz2")
self.assertEqual(abs(v2_file.data - v2_file_gz.data).max(), 0, "v2/gz")
self.assertEqual(abs(v3_file.data - v3_file_gz.data).max(), 0, "v3/gz")
self.assertEqual(abs(v2_file.data - v2_file_bz.data).max(), 0, "v2/bz")
self.assertEqual(abs(v3_file.data - v3_file_bz.data).max(), 0, "v3/bz")
def suite():
loadTests = unittest.defaultTestLoader.loadTestsFromTestCase
testsuite = unittest.TestSuite()
testsuite.addTest(loadTests(TestSpeImage))
return testsuite
if __name__ == '__main__':
runner = unittest.TextTestRunner()
runner.run(suite())
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