Coverage for tests/test_exposureFromImage.py : 29%

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# # LSST Data Management System # Copyright 2016 LSST Corporation. # # This product includes software developed by the # LSST Project (http://www.lsst.org/). # # 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 LSST License Statement and # the GNU General Public License along with this program. If not, # see <http://www.lsstcorp.org/LegalNotices/>. #
"""A test case for exposureFromImage."""
self.maskedImage = makeRampMaskedImage(10, 11)
del self.maskedImage
image = self.maskedImage.getImage() decoImage = afwImage.DecoratedImageF(image) metadata = PropertyList() metadata.set("FOO", "BAR") decoImage.setMetadata(metadata) exposure = exposureFromImage(decoImage) self.assertImagesEqual(exposure.getMaskedImage().getImage(), image) md = exposure.getMetadata() self.assertEqual(md.getScalar("FOO"), "BAR")
inExposure = afwImage.ExposureF(self.maskedImage) outExposure = exposureFromImage(inExposure) self.assertIs(inExposure, outExposure)
image = self.maskedImage.getImage() exposure = exposureFromImage(image) self.assertImagesEqual(image, exposure.getMaskedImage().getImage())
exposure = exposureFromImage(self.maskedImage) self.assertMaskedImagesEqual(self.maskedImage, exposure.getMaskedImage())
"""Test that exposureFromImage() attaches a None wcs to the exposure when the WCS cannot be constructed """ image = self.maskedImage.getImage() decoImage = afwImage.DecoratedImageF(image) metadata = PropertyList() metadata.set("CTYPE1", "RA---TPV") metadata.set("CTYPE2", "DEC--TPV") decoImage.setMetadata(metadata) exposure = exposureFromImage(decoImage) self.assertIs(exposure.getWcs(), None)
"""Make a ramp image of the specified size and image class
Image values start from 0 at the lower left corner and increase by 1 along rows Variance values equal image values + 100 Mask values equal image values modulo 8 bits (leaving plenty of unused values) """ mi = imgClass(width, height) image = mi.getImage() mask = mi.getMask() variance = mi.getVariance() val = 0 for yInd in range(height): for xInd in range(width): image[xInd, yInd, afwImage.LOCAL] = val variance[xInd, yInd, afwImage.LOCAL] = val + 100 mask[xInd, yInd, afwImage.LOCAL] = val % 0x100 val += 1 return mi
lsst.utils.tests.init()
lsst.utils.tests.init() unittest.main() |