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Relax image test requirements for Qt5 (there are some single-pixel shifts that

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we will nee new test images to cover)
This commit is contained in:
Luke Campagnola 2016-11-01 18:28:48 -07:00
parent 04bbbc453a
commit c58a177561
1 changed files with 12 additions and 3 deletions
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15
pyqtgraph/tests/image_testing.py
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@ -59,7 +59,7 @@ if sys.version[0] >= '3':
else: else:
import httplib import httplib
import urllib import urllib
from ..Qt import QtGui, QtCore, QtTest from ..Qt import QtGui, QtCore, QtTest, QT_LIB
from .. import functions as fn from .. import functions as fn
from .. import GraphicsLayoutWidget from .. import GraphicsLayoutWidget
from .. import ImageItem, TextItem from .. import ImageItem, TextItem
@ -212,7 +212,7 @@ def assertImageApproved(image, standardFile, message=None, **kwargs):
def assertImageMatch(im1, im2, minCorr=None, pxThreshold=50., def assertImageMatch(im1, im2, minCorr=None, pxThreshold=50.,
pxCount=0, maxPxDiff=None, avgPxDiff=None, pxCount=-1, maxPxDiff=None, avgPxDiff=None,
imgDiff=None): imgDiff=None):
"""Check that two images match. """Check that two images match.
@ -234,7 +234,8 @@ def assertImageMatch(im1, im2, minCorr=None, pxThreshold=50.,
pxThreshold : float pxThreshold : float
Minimum value difference at which two pixels are considered different Minimum value difference at which two pixels are considered different
pxCount : int or None pxCount : int or None
Maximum number of pixels that may differ Maximum number of pixels that may differ. Default is 0 for Qt4 and
1% of image size for Qt5.
maxPxDiff : float or None maxPxDiff : float or None
Maximum allowed difference between pixels Maximum allowed difference between pixels
avgPxDiff : float or None avgPxDiff : float or None
@ -247,6 +248,14 @@ def assertImageMatch(im1, im2, minCorr=None, pxThreshold=50.,
assert im1.shape[2] == 4 assert im1.shape[2] == 4
assert im1.dtype == im2.dtype assert im1.dtype == im2.dtype
if pxCount == -1:
if QT_LIB == 'PyQt5':
# Qt5 generates slightly different results; relax the tolerance
# until test images are updated.
pxCount = int(im1.shape[0] * im1.shape[1] * 0.01)
else:
pxCount = 0
diff = im1.astype(float) - im2.astype(float) diff = im1.astype(float) - im2.astype(float)
if imgDiff is not None: if imgDiff is not None:
assert np.abs(diff).sum() <= imgDiff assert np.abs(diff).sum() <= imgDiff