<filename>silx/gui/plot/_utils/test/test_dtime_ticklayout.py
# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2015-2018 European Synchrotron Radiation Facility
#
# 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.
#
# ###########################################################################*/

from __future__ import absolute_import, division, unicode_literals

__authors__ = ["<NAME>"]
__license__ = "MIT"
__date__ = "06/04/2018"


import datetime as dt
import unittest


from silx.gui.plot._utils.dtime_ticklayout import (
    calcTicks, DtUnit, SECONDS_PER_YEAR)


class DtTestTickLayout(unittest.TestCase):
    """Test ticks layout algorithms"""

    def testSmallMonthlySpacing(self):
        """ Tests a range that did result in a spacing of less than 1 month.
            It is impossible to add fractional month so the unit must be in days
        """
        from dateutil import parser
        d1 = parser.parse("2017-01-03 13:15:06.000044")
        d2 = parser.parse("2017-03-08 09:16:16.307584")
        _ticks, _units, spacing = calcTicks(d1, d2, nTicks=4)

        self.assertEqual(spacing, DtUnit.DAYS)


    def testNoCrash(self):
        """ Creates many combinations of and number-of-ticks and end-dates;
        tests that it doesn't give an exception and returns a reasonable number
        of ticks.
        """
        d1 = dt.datetime(2017, 1, 3, 13, 15, 6, 44)

        value = 100e-6 # Start at 100 micro sec range.

        while value <= 200 * SECONDS_PER_YEAR:

            d2 = d1 + dt.timedelta(microseconds=value*1e6) # end date range

            for numTicks in range(2, 12):
                ticks, _, _ = calcTicks(d1, d2, numTicks)

                margin = 2.5
                self.assertTrue(
                    numTicks/margin <= len(ticks) <= numTicks*margin,
                    "Condition {} <= {} <= {} failed for # ticks={} and d2={}:"
                     .format(numTicks/margin, len(ticks), numTicks * margin,
                             numTicks, d2))

            value = value * 1.5 # let date period grow exponentially





def suite():
    testsuite = unittest.TestSuite()
    testsuite.addTest(
        unittest.defaultTestLoader.loadTestsFromTestCase(DtTestTickLayout))
    return testsuite


if __name__ == '__main__':
    unittest.main()

<filename>silx/gui/plot/_utils/test/test_dtime_ticklayout.py
# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2015-2018 European Synchrotron Radiation Facility
#
# 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.
#
# ###########################################################################*/

from __future__ import absolute_import, division, unicode_literals

__authors__ = ["<NAME>"]
__license__ = "MIT"
__date__ = "06/04/2018"


import datetime as dt
import unittest


from silx.gui.plot._utils.dtime_ticklayout import (
    calcTicks, DtUnit, SECONDS_PER_YEAR)


class DtTestTickLayout(unittest.TestCase):
    """Test ticks layout algorithms"""

    def testSmallMonthlySpacing(self):
        """ Tests a range that did result in a spacing of less than 1 month.
            It is impossible to add fractional month so the unit must be in days
        """
        from dateutil import parser
        d1 = parser.parse("2017-01-03 13:15:06.000044")
        d2 = parser.parse("2017-03-08 09:16:16.307584")
        _ticks, _units, spacing = calcTicks(d1, d2, nTicks=4)

        self.assertEqual(spacing, DtUnit.DAYS)


    def testNoCrash(self):
        """ Creates many combinations of and number-of-ticks and end-dates;
        tests that it doesn't give an exception and returns a reasonable number
        of ticks.
        """
        d1 = dt.datetime(2017, 1, 3, 13, 15, 6, 44)

        value = 100e-6 # Start at 100 micro sec range.

        while value <= 200 * SECONDS_PER_YEAR:

            d2 = d1 + dt.timedelta(microseconds=value*1e6) # end date range

            for numTicks in range(2, 12):
                ticks, _, _ = calcTicks(d1, d2, numTicks)

                margin = 2.5
                self.assertTrue(
                    numTicks/margin <= len(ticks) <= numTicks*margin,
                    "Condition {} <= {} <= {} failed for # ticks={} and d2={}:"
                     .format(numTicks/margin, len(ticks), numTicks * margin,
                             numTicks, d2))

            value = value * 1.5 # let date period grow exponentially





def suite():
    testsuite = unittest.TestSuite()
    testsuite.addTest(
        unittest.defaultTestLoader.loadTestsFromTestCase(DtTestTickLayout))
    return testsuite


if __name__ == '__main__':
    unittest.main()

# coding: utf-8 # /*########################################################################## # # Copyright (c) 2015-2018 European Synchrotron Radiation Facility # # 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. # # ###########################################################################*/ Test ticks layout algorithms Tests a range that did result in a spacing of less than 1 month.             It is impossible to add fractional month so the unit must be in days Creates many combinations of and number-of-ticks and end-dates;         tests that it doesn't give an exception and returns a reasonable number         of ticks. # Start at 100 micro sec range. # end date range # ticks={} and d2={}:" # let date period grow exponentially