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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)
#
# 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.
#
"""
Deep test to check IOError exceptions
"""
import unittest
import os
import logging
logger = logging.getLogger(__name__)
import fabio
from ..utilstest import UtilsTest
from ..test_frames import _CommonTestFrames
class TestPixiImage(_CommonTestFrames):
"""Test the class format"""
@classmethod
def setUpClass(cls):
cls.create_fake_images()
super(TestPixiImage, cls).setUpClass()
@classmethod
def getMeta(cls):
class Meta(object):
pass
meta = Meta()
meta.image = None
meta.filename = cls.multi_frame
meta.nframes = 3
return meta
@classmethod
def create_fake_images(cls):
"""Create PiXi image.
This images was generated using our Python code as specification.
Then it's not a very good way to test our code.
"""
frame1 = b"\x01\x00" * 476 + b"\x00\x00" * 476 * 511
frame2 = b"\x02\x00" * 476 + b"\x00\x00" * 476 * 511
frame3 = b"\x03\x00" * 476 + b"\x00\x00" * 476 * 511
header = b"\n\xb8\x03\x00" + b"\x00" * 20
cls.single_frame = os.path.join(UtilsTest.tempdir, "pixi_1frame.dat")
with open(cls.single_frame, 'wb') as f:
f.write(header)
f.write(frame1)
cls.multi_frame = os.path.join(UtilsTest.tempdir, "pixi_3frame.dat")
with open(cls.multi_frame, 'wb') as f:
f.write(header)
f.write(frame1)
f.write(header)
f.write(frame2)
f.write(header)
f.write(frame3)
template = os.path.join(UtilsTest.tempdir, "pixi_series.dat") + "$%04d"
cls.file_series = template % 0
frames = [frame1, frame2, frame3]
for num, frame in enumerate(frames):
filename = template % num
with open(filename, 'wb') as f:
f.write(header)
f.write(frame)
def test_single_frame(self):
image = fabio.open(self.single_frame)
self.assertEqual(image.nframes, 1)
self.assertEqual(image.data.shape, (512, 476))
self.assertEqual(image.data[0, 0], 1)
self.assertEqual(image.data[1, 1], 0)
def test_multi_frame(self):
image = fabio.open(self.multi_frame)
self.assertEqual(image.nframes, 3)
self.assertEqual(image.data.shape, (512, 476))
self.assertEqual(image.data[0, 0], 1)
self.assertEqual(image.data[1, 1], 0)
frame = image.getframe(0)
self.assertEqual(frame.data[0, 0], 1)
self.assertEqual(frame.data[1, 1], 0)
frame = image.getframe(1)
self.assertEqual(frame.data[0, 0], 2)
self.assertEqual(frame.data[1, 1], 0)
frame = image.getframe(2)
self.assertEqual(frame.data[0, 0], 3)
self.assertEqual(frame.data[1, 1], 0)
def test_file_series(self):
image = fabio.open(self.file_series)
# self.assertEqual(image.nframes, 3)
self.assertEqual(image.data.shape, (512, 476))
self.assertEqual(image.data[0, 0], 1)
self.assertEqual(image.data[1, 1], 0)
frame = image.getframe(0)
self.assertEqual(frame.data[0, 0], 1)
self.assertEqual(frame.data[1, 1], 0)
frame = image.getframe(1)
self.assertEqual(frame.data[0, 0], 2)
self.assertEqual(frame.data[1, 1], 0)
frame = image.getframe(2)
self.assertEqual(frame.data[0, 0], 3)
self.assertEqual(frame.data[1, 1], 0)
# use the frame to move to another frame
frame = frame.getframe(0)
self.assertEqual(frame.data[0, 0], 1)
self.assertEqual(frame.data[1, 1], 0)
def suite():
loader = unittest.defaultTestLoader.loadTestsFromTestCase
testsuite = unittest.TestSuite()
testsuite.addTest(loader(TestPixiImage))
return testsuite
if __name__ == '__main__':
runner = unittest.TextTestRunner()
runner.run(suite())
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