def renderCheck(self, mismatch=0, colortol=0, imgpath='', grpprefix=''):
"""Check rendered map canvas or existing image against control image
:mismatch: number of pixels different from control, and still valid
:colortol: maximum difference for each color component including alpha
:imgpath: existing image; if present, skips rendering canvas
:grpprefix: compare test image/rendering against different test group
"""
if not grpprefix:
grpprefix = self._TestGroupPrefix
chk = QgsMultiRenderChecker()
chk.setControlPathPrefix('expected_' + grpprefix)
chk.setControlName(self._Test)
if imgpath:
chk.setRenderedImage(imgpath)
ms = self._MapSettings # class settings
if self._TestMapSettings is not None:
ms = self._TestMapSettings # per test settings
chk.setMapSettings(ms)
chk.setColorTolerance(colortol)
# noinspection PyUnusedLocal
res = chk.runTest(self._Test, mismatch)
if PALREPORT and not res: # don't report ok checks
testname = self._TestGroup + ' . ' + self._Test
PALREPORTS[testname] = chk.report()
msg = '\nRender check failed for "{0}"'.format(self._Test)
return res, msg
def checkImage(self, name, reference_image, rendered_image, size_tolerance=0):
checker = QgsMultiRenderChecker()
checker.setControlPathPrefix("layout_exporter")
checker.setControlName("expected_layoutexporter_" + reference_image)
checker.setRenderedImage(rendered_image)
checker.setColorTolerance(2)
checker.setSizeTolerance(size_tolerance, size_tolerance)
result = checker.runTest(name, 20)
self.report += checker.report()
print((self.report))
return result
def imageCheck(self, name, reference_image, image):
self.report += "<h2>Render {}</h2>\n".format(name)
temp_dir = QDir.tempPath() + '/'
file_name = temp_dir + 'annotation_' + name + ".png"
image.save(file_name, "PNG")
checker = QgsMultiRenderChecker()
checker.setControlPathPrefix("annotations")
checker.setControlName("expected_" + reference_image)
checker.setRenderedImage(file_name)
checker.setColorTolerance(2)
result = checker.runTest(name, 20)
self.report += checker.report()
print((self.report))
return result
def canvasImageCheck(self, name, reference_image, canvas):
self.report += "<h2>Render {}</h2>\n".format(name)
temp_dir = QDir.tempPath() + '/'
file_name = temp_dir + 'mapcanvas_' + name + ".png"
print(file_name)
canvas.saveAsImage(file_name)
checker = QgsMultiRenderChecker()
checker.setControlPathPrefix("mapcanvas")
checker.setControlName("expected_" + reference_image)
checker.setRenderedImage(file_name)
checker.setColorTolerance(2)
result = checker.runTest(name, 20)
self.report += checker.report()
print((self.report))
return result
def checkImage(self,
name,
reference_image,
rendered_image,
size_tolerance=0):
checker = QgsMultiRenderChecker()
checker.setControlPathPrefix("layout_exporter")
checker.setControlName("expected_layoutexporter_" + reference_image)
checker.setRenderedImage(rendered_image)
checker.setColorTolerance(2)
checker.setSizeTolerance(size_tolerance, size_tolerance)
result = checker.runTest(name, 20)
self.report += checker.report()
print((self.report))
return result
def imageCheck(self, name, reference_image, image, size_tolerance=0):
TestQgsColorRampLegendNode.report += "<h2>Render {}</h2>\n".format(
name)
temp_dir = QDir.tempPath() + '/'
file_name = temp_dir + name + ".png"
image.save(file_name, "PNG")
checker = QgsMultiRenderChecker()
checker.setControlPathPrefix("color_ramp_legend_node")
checker.setControlName("expected_" + reference_image)
checker.setRenderedImage(file_name)
checker.setColorTolerance(2)
checker.setSizeTolerance(size_tolerance, size_tolerance)
result = checker.runTest(name, 20)
TestQgsColorRampLegendNode.report += checker.report()
return result
def _pdf_diff(self, pdf, control_image, max_diff, max_size_diff=QSize(), dpi=96):
temp_pdf = os.path.join(tempfile.gettempdir(), "%s_result.pdf" % control_image)
with open(temp_pdf, "wb") as f:
f.write(pdf)
temp_image = os.path.join(tempfile.gettempdir(), "%s_result.png" % control_image)
self._pdf_to_png(temp_pdf, temp_image, dpi=dpi, page=1)
control = QgsMultiRenderChecker()
control.setControlPathPrefix("qgis_server")
control.setControlName(control_image)
control.setRenderedImage(temp_image)
if max_size_diff.isValid():
control.setSizeTolerance(max_size_diff.width(), max_size_diff.height())
return control.runTest(control_image, max_diff), control.report()
def canvasImageCheck(self, name, reference_image, canvas):
self.report += "<h2>Render {}</h2>\n".format(name)
temp_dir = QDir.tempPath() + '/'
file_name = temp_dir + 'rendered_' + name + ".png"
image = QImage(canvas.size(), QImage.Format_ARGB32)
painter = QPainter(image)
canvas.render(painter)
painter.end()
image.save(file_name)
checker = QgsMultiRenderChecker()
checker.setControlPathPrefix("highlight")
checker.setControlName("expected_" + reference_image)
checker.setRenderedImage(file_name)
checker.setColorTolerance(2)
result = checker.runTest(name, 20)
self.report += checker.report()
print((self.report))
return result
def _img_diff(self, image, control_image, max_diff, max_size_diff=QSize(), outputJpg=False):
extFile = 'png'
if outputJpg:
extFile = 'jpg'
temp_image = os.path.join(tempfile.gettempdir(), "%s_result.%s" % (control_image, extFile))
with open(temp_image, "wb") as f:
f.write(image)
if outputJpg:
return (True, "QgsRenderChecker can't be used for JPG images")
control = QgsMultiRenderChecker()
control.setControlPathPrefix("qgis_server")
control.setControlName(control_image)
control.setRenderedImage(temp_image)
if max_size_diff.isValid():
control.setSizeTolerance(max_size_diff.width(), max_size_diff.height())
return control.runTest(control_image, max_diff), control.report()
