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# -*- coding: utf-8 -*-
"""
***************************************************************************
TestTools.py
---------------------
Date : February 2013
Copyright : (C) 2013 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Victor Olaya'
__date__ = 'February 2013'
__copyright__ = '(C) 2013, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
import yaml
import hashlib
from osgeo import gdal
from osgeo.gdalconst import GA_ReadOnly
from PyQt4.QtCore import QCoreApplication, QMetaObject
from PyQt4.QtGui import QMessageBox, QDialog, QVBoxLayout, QTextEdit
from processing.core.Processing import Processing
from processing.core.outputs import (
OutputNumber,
OutputString,
OutputRaster,
OutputVector,
OutputHTML
)
from processing.core.parameters import (
ParameterRaster,
ParameterVector,
ParameterMultipleInput
)
def extractSchemaPath(filepath):
"""
Trys to find where the file is relative to the QGIS source code directory.
If it is already placed in the processing or QGIS testdata directory it will
return an appropriate schema and relative filepath
Args:
filepath: The path of the file to examine
Returns:
A tuple (schema, relative_file_path) where the schema is 'qgs' or 'proc'
if we can assume that the file is in this testdata directory.
"""
parts = []
schema = None
localpath = ''
path = filepath
part = True
while part:
(path, part) = os.path.split(path)
if part == 'testdata' and not localpath:
localparts = parts
localparts.reverse()
localpath = os.path.join(*localparts)
parts.append(part)
parts.reverse()
try:
testsindex = parts.index('tests')
except ValueError:
return '', filepath
if parts[testsindex - 1] == 'processing':
schema = 'proc'
return schema, localpath
def createTest(text):
definition = {}
tokens = text[len('processing.runalg('):-1].split(',')
cmdname = (tokens[0])[1:-1]
alg = Processing.getAlgorithm(cmdname)
definition['name'] = 'Test ({})'.format(cmdname)
definition['algorithm'] = cmdname
params = {}
results = {}
i = 0
for param in alg.parameters:
if param.hidden:
continue
i += 1
token = tokens[i]
if isinstance(param, ParameterVector):
filename = token[1:-1]
schema, filepath = extractSchemaPath(filename)
p = {
'type': 'vector',
'name': filepath
}
if not schema:
p['location'] = '[The source data is not in the testdata directory. Please use data in the processing/tests/testdata folder.]'
params[param.name] = p
elif isinstance(param, ParameterRaster):
filename = token[1:-1]
schema, filepath = extractSchemaPath(filename)
p = {
'type': 'raster',
'name': filepath
}
if not schema:
p['location'] = '[The source data is not in the testdata directory. Please use data in the processing/tests/testdata folder.]'
params[param.name] = p
elif isinstance(param, ParameterMultipleInput):
multiparams = token[1:-1].split(';')
newparam = []
for mp in multiparams:
schema, filepath = extractSchemaPath(mp)
newparam.append({
'type': 'vector',
'name': filepath
})
p = {
'type': 'multi',
'params': newparam
}
if not schema:
p['location'] = '[The source data is not in the testdata directory. Please use data in the processing/tests/testdata folder.]'
params[param.name] = p
else:
params[param.name] = token
definition['params'] = params
for i, out in enumerate([out for out in alg.outputs if not out.hidden]):
token = tokens[i - alg.getVisibleOutputsCount()]
if isinstance(out, (OutputNumber, OutputString)):
results[out.name] = unicode(out)
elif isinstance(out, OutputRaster):
filename = token[1:-1]
dataset = gdal.Open(filename, GA_ReadOnly)
strhash = hashlib.sha224(dataset.ReadAsArray(0).data).hexdigest()
results[out.name] = {
'type': 'rasterhash',
'hash': strhash
}
elif isinstance(out, OutputVector):
filename = token[1:-1]
schema, filepath = extractSchemaPath(filename)
results[out.name] = {
'type': 'vector',
'name': filepath
}
if not schema:
results[out.name]['location'] = '[The expected result data is not in the testdata directory. Please write it to processing/tests/testdata/expected. Prefer gml files.]'
elif isinstance(out, OutputHTML):
filename = token[1:-1]
schema, filepath = extractSchemaPath(filename)
results[out.name] = {
'type': 'file',
'name': filepath
}
if not schema:
results[out.name]['location'] = '[The expected result file is not in the testdata directory. Please redirect the output to processing/tests/testdata/expected.]'
definition['results'] = results
dlg = ShowTestDialog(yaml.dump([definition], default_flow_style=False))
dlg.exec_()
def tr(string):
return QCoreApplication.translate('TestTools', string)
class ShowTestDialog(QDialog):
def __init__(self, s):
QDialog.__init__(self)
self.setModal(True)
self.resize(600, 400)
self.setWindowTitle(self.tr('Unit test'))
layout = QVBoxLayout()
self.text = QTextEdit()
self.text.setFontFamily("monospace")
self.text.setEnabled(True)
self.text.setText(s)
layout.addWidget(self.text)
self.setLayout(layout)
QMetaObject.connectSlotsByName(self)
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