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Diffstat (limited to 'silx/gui/plot/test/testColors.py')
-rw-r--r-- | silx/gui/plot/test/testColors.py | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/silx/gui/plot/test/testColors.py b/silx/gui/plot/test/testColors.py new file mode 100644 index 0000000..94c22f3 --- /dev/null +++ b/silx/gui/plot/test/testColors.py @@ -0,0 +1,94 @@ +# coding: utf-8 +# /*########################################################################## +# +# Copyright (c) 2016-2017 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. +# +# ###########################################################################*/ +"""Basic tests for Colors""" + +__authors__ = ["T. Vincent"] +__license__ = "MIT" +__date__ = "05/12/2016" + + +import numpy + +import unittest +from silx.test.utils import ParametricTestCase + +from silx.gui.plot import Colors + + +class TestRGBA(ParametricTestCase): + """Basic tests of rgba function""" + + def testRGBA(self): + """"Test rgba function with accepted values""" + tests = { # name: (colors, expected values) + 'blue': ('blue', (0., 0., 1., 1.)), + '#010203': ('#010203', (1. / 255., 2. / 255., 3. / 255., 1.)), + '#01020304': ('#01020304', (1. / 255., 2. / 255., 3. / 255., 4. / 255.)), + '3 x uint8': (numpy.array((1, 255, 0), dtype=numpy.uint8), + (1 / 255., 1., 0., 1.)), + '4 x uint8': (numpy.array((1, 255, 0, 1), dtype=numpy.uint8), + (1 / 255., 1., 0., 1 / 255.)), + '3 x float overflow': ((3., 0.5, 1.), (1., 0.5, 1., 1.)), + } + + for name, test in tests.items(): + color, expected = test + with self.subTest(msg=name): + result = Colors.rgba(color) + self.assertEqual(result, expected) + + +class TestApplyColormapToData(ParametricTestCase): + """Tests of applyColormapToData function""" + + def testApplyColormapToData(self): + """Simple test of applyColormapToData function""" + colormap = dict(name='gray', normalization='linear', + autoscale=False, vmin=0, vmax=255) + + size = 10 + expected = numpy.empty((size, 4), dtype='uint8') + expected[:, 0] = numpy.arange(size, dtype='uint8') + expected[:, 1] = expected[:, 0] + expected[:, 2] = expected[:, 0] + expected[:, 3] = 255 + + for dtype in ('uint8', 'int32', 'float32', 'float64'): + with self.subTest(dtype=dtype): + array = numpy.arange(size, dtype=dtype) + result = Colors.applyColormapToData(array, **colormap) + self.assertTrue(numpy.all(numpy.equal(result, expected))) + + +def suite(): + test_suite = unittest.TestSuite() + for testClass in (TestRGBA, TestApplyColormapToData): + test_suite.addTest( + unittest.defaultTestLoader.loadTestsFromTestCase(testClass)) + return test_suite + + +if __name__ == '__main__': + unittest.main(defaultTest='suite') |