def check_algorithm(self, name, defs):
"""
Will run an algorithm definition and check if it generates the expected result
:param name: The identifier name used in the test output heading
:param defs: A python dict containing a test algorithm definition
"""
QgsProject.instance().removeAllMapLayers()
params = self.load_params(defs['params'])
if defs['algorithm'].startswith('script:'):
filePath = os.path.join(
processingTestDataPath(), 'scripts',
'{}.py'.format(defs['algorithm'][len('script:'):]))
alg = ScriptAlgorithm(filePath)
else:
alg = QgsApplication.processingRegistry().algorithmById(
defs['algorithm'])
if isinstance(params, list):
for param in zip(alg.parameters, params):
param[0].setValue(param[1])
else:
for k, p in list(params.items()):
alg.setParameterValue(k, p)
for r, p in list(defs['results'].items()):
alg.setOutputValue(r, self.load_result_param(p))
expectFailure = False
if 'expectedFailure' in defs:
exec(('\n'.join(defs['expectedFailure'][:-1])), globals(),
locals())
expectFailure = eval(defs['expectedFailure'][-1])
# ignore user setting for invalid geometry handling
context = QgsProcessingContext()
context.setProject(QgsProject.instance())
if expectFailure:
try:
alg.execute(context)
self.check_results(alg.getOutputValuesAsDictionary(),
defs['params'], defs['results'])
except Exception:
pass
else:
raise _UnexpectedSuccess
else:
alg.execute(context)
self.check_results(alg.getOutputValuesAsDictionary(),
defs['params'], defs['results'])
def check_algorithm(self, name, defs):
"""
Will run an algorithm definition and check if it generates the expected result
:param name: The identifier name used in the test output heading
:param defs: A python dict containing a test algorithm definition
"""
QgsProject.instance().removeAllMapLayers()
params = self.load_params(defs['params'])
if defs['algorithm'].startswith('script:'):
filePath = os.path.join(processingTestDataPath(), 'scripts', '{}.py'.format(defs['algorithm'][len('script:'):]))
alg = ScriptAlgorithm(filePath)
else:
alg = QgsApplication.processingRegistry().algorithmById(defs['algorithm'])
if isinstance(params, list):
for param in zip(alg.parameters, params):
param[0].setValue(param[1])
else:
for k, p in list(params.items()):
alg.setParameterValue(k, p)
for r, p in list(defs['results'].items()):
alg.setOutputValue(r, self.load_result_param(p))
expectFailure = False
if 'expectedFailure' in defs:
exec(('\n'.join(defs['expectedFailure'][:-1])), globals(), locals())
expectFailure = eval(defs['expectedFailure'][-1])
if expectFailure:
try:
alg.execute()
self.check_results(alg.getOutputValuesAsDictionary(), defs['params'], defs['results'])
except Exception:
pass
else:
raise _UnexpectedSuccess
else:
alg.execute()
self.check_results(alg.getOutputValuesAsDictionary(), defs['params'], defs['results'])
