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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/>.
#
"""
test cases for fileseries
28/11/2014
"""
import unittest
import logging
import os
import shutil
import numpy
logger = logging.getLogger(__name__)
import fabio
from fabio.file_series import numbered_file_series, file_series, filename_series
from fabio.file_series import FileSeries
from .utilstest import UtilsTest
class TestRandomSeries(unittest.TestCase):
"""arbitrary series"""
def setUp(self):
"""sets up"""
self.fso = file_series(["first", "second", "last"])
def testfirst(self):
"""check first"""
self.assertEqual("first", self.fso.first())
def testlast(self):
"""check first"""
self.assertEqual("last", self.fso.last())
def testjump(self):
"""check jump"""
self.assertEqual("second", self.fso.jump(1))
class TestEdfNumbered(unittest.TestCase):
"""
Typical sequence of edf files
"""
def setUp(self):
""" note extension has the . in it"""
self.fso = numbered_file_series("mydata", 0, 10005, ".edf")
def testfirst(self):
""" first in series"""
self.assertEqual(self.fso.first(), "mydata0000.edf")
def testlast(self):
""" last in series"""
self.assertEqual(self.fso.last(), "mydata10005.edf")
def testnext(self):
""" check all in order """
mylist = ["mydata%04d.edf" % (i) for i in range(0, 10005)]
i = 1
while i < len(mylist):
self.assertEqual(mylist[i], self.fso.next())
i += 1
def testprevious(self):
""" check all in order """
mylist = ["mydata%04d.edf" % (i) for i in range(0, 10005)]
i = 10003
self.fso.jump(10004)
while i > 0:
self.assertEqual(mylist[i], self.fso.previous())
i -= 1
def testprevjump(self):
"""check current"""
self.fso.jump(9999)
self.assertEqual("mydata9999.edf", self.fso.current())
self.assertEqual("mydata9998.edf", self.fso.previous())
def testnextjump(self):
"""check current"""
self.fso.jump(9999)
self.assertEqual("mydata9999.edf", self.fso.current())
self.assertEqual("mydata10000.edf", self.fso.next())
def testlen(self):
"""check len"""
self.assertEqual(self.fso.len(), 10006) # +1 for 0000
class TestFileSeries(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.tmp_directory = os.path.join(UtilsTest.tempdir, cls.__name__)
os.makedirs(cls.tmp_directory)
cls.create_resources()
@classmethod
def tearDownClass(cls):
shutil.rmtree(cls.tmp_directory)
@classmethod
def create_resources(cls):
data = (numpy.random.rand(8, 8) * 10).astype(int)
data0 = numpy.zeros((8, 8), dtype=int)
data1 = numpy.zeros((8, 8), dtype=int) + 1
data2 = numpy.zeros((8, 8), dtype=int) + 2
# Single frame
cls.create_edf_file("image_a_000.edf", [data0])
cls.create_edf_file("image_a_001.edf", [data1])
cls.create_edf_file("image_a_002.edf", [data2])
# Many frames
cls.create_edf_file("image_b_000.edf", [data0, data, data])
cls.create_edf_file("image_b_001.edf", [data, data, data1])
cls.create_edf_file("image_b_002.edf", [data2])
# Any frames
cls.create_edf_file("image_c_000.edf", [data0, data, data])
cls.create_edf_file("image_c_001.edf", [data, data1])
cls.create_edf_file("image_c_002.edf", [data, data, data, data])
cls.create_edf_file("image_c_003.edf", [data2])
@classmethod
def get_filename(cls, filename):
return os.path.join(cls.tmp_directory, filename)
@classmethod
def create_edf_file(cls, filename, data_list):
filename = cls.get_filename(filename)
image = fabio.factory("edfimage")
for frame_id, data in enumerate(data_list):
header = {"frame_id": "%d" % frame_id, "filename": "%s" % filename}
if frame_id == 0:
image.data = data
image.header.update(header)
else:
image.append_frame(data=data, header=header)
image.write(filename)
def get_singleframe_files(self):
filenames = ["image_a_000.edf", "image_a_001.edf", "image_a_002.edf"]
filenames = [self.get_filename(f) for f in filenames]
return filenames
def get_multiframe_files(self):
filenames = ["image_b_000.edf", "image_b_001.edf", "image_b_002.edf"]
filenames = [self.get_filename(f) for f in filenames]
return filenames
def get_anyframe_files(self):
filenames = ["image_c_000.edf", "image_c_001.edf", "image_c_002.edf", "image_c_003.edf"]
filenames = [self.get_filename(f) for f in filenames]
return filenames
def test_singleframe_nofiles(self):
serie = FileSeries(filenames=[], single_frame=True)
self.assertEqual(serie.nframes, 0)
for _ in serie.frames():
self.fail()
self.assertRaises(IndexError, serie.get_frame, 0)
serie.close()
def test_singleframe_nframes(self):
filenames = self.get_singleframe_files()
serie = FileSeries(filenames=filenames, single_frame=True)
self.assertTrue(serie.nframes, 3)
serie.close()
def test_singleframe_nframes2(self):
filenames = self.get_singleframe_files()
serie = FileSeries(filenames=filenames, fixed_frames=True)
self.assertTrue(serie.nframes, 3)
serie.close()
def test_singleframe_nframes3(self):
filenames = self.get_singleframe_files()
serie = FileSeries(filenames=filenames, fixed_frame_number=1)
self.assertTrue(serie.nframes, 3)
serie.close()
def test_singleframe_getframe(self):
filenames = self.get_singleframe_files()
serie = FileSeries(filenames=filenames, single_frame=True)
self.assertRaises(IndexError, serie.get_frame, -1)
self.assertEqual(serie.get_frame(0).data[0, 0], 0)
self.assertEqual(serie.get_frame(1).data[0, 0], 1)
self.assertEqual(serie.get_frame(2).data[0, 0], 2)
self.assertRaises(IndexError, serie.get_frame, 4)
serie.close()
def test_singleframe_frames(self):
filenames = self.get_singleframe_files()
serie = FileSeries(filenames=filenames, single_frame=True)
for frame_id, frame in enumerate(serie.frames()):
self.assertEqual(frame.data[0, 0], frame_id)
self.assertEqual(frame.header["frame_id"], "0")
self.assertIn("%03d" % frame_id, frame.header["filename"])
self.assertEqual(frame_id, 2)
serie.close()
def test_multiframe_nofiles(self):
serie = FileSeries(filenames=[], fixed_frames=True)
self.assertEqual(serie.nframes, 0)
for _ in serie.frames():
self.fail()
self.assertRaises(IndexError, serie.get_frame, 0)
serie.close()
def test_multiframe_nframes(self):
filenames = self.get_multiframe_files()
serie = FileSeries(filenames=filenames, fixed_frames=True)
self.assertTrue(serie.nframes, 7)
serie.close()
def test_multiframe_getframe(self):
filenames = self.get_multiframe_files()
serie = FileSeries(filenames=filenames, fixed_frames=True)
self.assertRaises(IndexError, serie.get_frame, -1)
self.assertEqual(serie.get_frame(0).data[0, 0], 0)
self.assertEqual(serie.get_frame(5).data[0, 0], 1)
self.assertEqual(serie.get_frame(6).data[0, 0], 2)
self.assertRaises(IndexError, serie.get_frame, 7)
serie.close()
def test_multiframe_frames(self):
filenames = self.get_multiframe_files()
serie = FileSeries(filenames=filenames, fixed_frames=True)
for frame_id, frame in enumerate(serie.frames()):
if frame_id not in [0, 5, 6]:
continue
expected_frame_id = {0: 0, 5: 2, 6: 0}[frame_id]
expected_file_num = {0: 0, 5: 1, 6: 2}[frame_id]
expected_data = {0: 0, 5: 1, 6: 2}[frame_id]
self.assertEqual(frame.data[0, 0], expected_data)
self.assertEqual(frame.header["frame_id"], "%d" % expected_frame_id)
self.assertIn("%03d" % expected_file_num, frame.header["filename"])
self.assertEqual(frame_id, 6)
serie.close()
def test_anyframe_nofiles(self):
serie = FileSeries(filenames=[], fixed_frames=False)
self.assertEqual(serie.nframes, 0)
for _ in serie.frames():
self.fail()
self.assertRaises(IndexError, serie.get_frame, 0)
serie.close()
def test_anyframe_nframes(self):
filenames = self.get_anyframe_files()
serie = FileSeries(filenames=filenames, fixed_frames=False)
self.assertTrue(serie.nframes, 10)
serie.close()
def test_anyframe_getframe(self):
filenames = self.get_anyframe_files()
serie = FileSeries(filenames=filenames, fixed_frames=False)
self.assertRaises(IndexError, serie.get_frame, -1)
self.assertEqual(serie.get_frame(0).data[0, 0], 0)
# Reach frame 3 to force frame 4 to come from the file description cache
serie.get_frame(3)
self.assertEqual(serie.get_frame(4).data[0, 0], 1)
self.assertEqual(serie.get_frame(9).data[0, 0], 2)
self.assertRaises(IndexError, serie.get_frame, 10)
serie.close()
def test_anyframe_getframes(self):
filenames = self.get_anyframe_files()
serie = FileSeries(filenames=filenames, fixed_frames=False)
for frame_id in range(serie.nframes):
frame = serie.get_frame(frame_id)
if frame_id not in [0, 4, 9]:
continue
expected_file_frame_id = {0: 0, 4: 1, 9: 0}[frame_id]
expected_file_num = {0: 0, 4: 1, 9: 3}[frame_id]
expected_data = {0: 0, 4: 1, 9: 2}[frame_id]
expected_filename = filenames[expected_file_num]
self.assertEqual(frame.data[0, 0], expected_data)
self.assertEqual(frame.header["frame_id"], "%d" % expected_file_frame_id)
self.assertEqual(frame.index, frame_id)
self.assertEqual(frame.file_index, expected_file_frame_id)
self.assertIs(frame.container, serie)
self.assertIs(frame.file_container.filename, expected_filename)
self.assertIn("%03d" % expected_file_num, frame.header["filename"])
self.assertEqual(frame_id, 9)
serie.close()
def test_anyframe_frames(self):
filenames = self.get_anyframe_files()
serie = FileSeries(filenames=filenames, fixed_frames=False)
for frame_id, frame in enumerate(serie.frames()):
if frame_id not in [0, 4, 9]:
continue
expected_file_frame_id = {0: 0, 4: 1, 9: 0}[frame_id]
expected_file_num = {0: 0, 4: 1, 9: 3}[frame_id]
expected_data = {0: 0, 4: 1, 9: 2}[frame_id]
expected_filename = filenames[expected_file_num]
self.assertEqual(frame.data[0, 0], expected_data)
self.assertEqual(frame.header["frame_id"], "%d" % expected_file_frame_id)
self.assertEqual(frame.index, frame_id)
self.assertEqual(frame.file_index, expected_file_frame_id)
self.assertIs(frame.container, serie)
self.assertIs(frame.file_container.filename, expected_filename)
self.assertIn("%03d" % expected_file_num, frame.header["filename"])
self.assertEqual(frame_id, 9)
serie.close()
def test_filename_iterator(self):
filenames = self.get_anyframe_files()
serie = FileSeries(filenames=iter(filenames))
self.assertEqual(serie.nframes, 10)
serie.close()
def test_filename_generator(self):
def generator():
filenames = self.get_anyframe_files()
for filename in filenames:
yield filename
serie = FileSeries(filenames=generator())
self.assertEqual(serie.nframes, 10)
serie.close()
def test_with_numbered_file_series(self):
filenames = numbered_file_series(self.get_filename("image_c_"), 0, 3, ".edf", digits=3)
serie = FileSeries(filenames=filenames)
self.assertEqual(serie.nframes, 10)
serie.close()
def test_with_filename_series(self):
first_filename = self.get_filename("image_c_000.edf")
filenames = filename_series(first_filename)
serie = FileSeries(filenames=filenames)
self.assertEqual(serie.nframes, 10)
serie.close()
def suite():
loadTests = unittest.defaultTestLoader.loadTestsFromTestCase
testsuite = unittest.TestSuite()
testsuite.addTest(loadTests(TestRandomSeries))
testsuite.addTest(loadTests(TestEdfNumbered))
testsuite.addTest(loadTests(TestFileSeries))
return testsuite
if __name__ == '__main__':
runner = unittest.TextTestRunner()
runner.run(suite())
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