| # xml.etree test for cElementTree |
| import sys, struct |
| from test import support |
| from test.support import import_fresh_module |
| import types |
| import unittest |
| |
| cET = import_fresh_module('xml.etree.ElementTree', |
| fresh=['_elementtree']) |
| cET_alias = import_fresh_module('xml.etree.cElementTree', |
| fresh=['_elementtree', 'xml.etree']) |
| |
| |
| class MiscTests(unittest.TestCase): |
| # Issue #8651. |
| @support.bigmemtest(size=support._2G + 100, memuse=1, dry_run=False) |
| def test_length_overflow(self, size): |
| data = b'x' * size |
| parser = cET.XMLParser() |
| try: |
| self.assertRaises(OverflowError, parser.feed, data) |
| finally: |
| data = None |
| |
| def test_del_attribute(self): |
| element = cET.Element('tag') |
| |
| element.tag = 'TAG' |
| with self.assertRaises(AttributeError): |
| del element.tag |
| self.assertEqual(element.tag, 'TAG') |
| |
| with self.assertRaises(AttributeError): |
| del element.text |
| self.assertIsNone(element.text) |
| element.text = 'TEXT' |
| with self.assertRaises(AttributeError): |
| del element.text |
| self.assertEqual(element.text, 'TEXT') |
| |
| with self.assertRaises(AttributeError): |
| del element.tail |
| self.assertIsNone(element.tail) |
| element.tail = 'TAIL' |
| with self.assertRaises(AttributeError): |
| del element.tail |
| self.assertEqual(element.tail, 'TAIL') |
| |
| with self.assertRaises(AttributeError): |
| del element.attrib |
| self.assertEqual(element.attrib, {}) |
| element.attrib = {'A': 'B', 'C': 'D'} |
| with self.assertRaises(AttributeError): |
| del element.attrib |
| self.assertEqual(element.attrib, {'A': 'B', 'C': 'D'}) |
| |
| |
| @unittest.skipUnless(cET, 'requires _elementtree') |
| class TestAliasWorking(unittest.TestCase): |
| # Test that the cET alias module is alive |
| def test_alias_working(self): |
| e = cET_alias.Element('foo') |
| self.assertEqual(e.tag, 'foo') |
| |
| |
| @unittest.skipUnless(cET, 'requires _elementtree') |
| @support.cpython_only |
| class TestAcceleratorImported(unittest.TestCase): |
| # Test that the C accelerator was imported, as expected |
| def test_correct_import_cET(self): |
| # SubElement is a function so it retains _elementtree as its module. |
| self.assertEqual(cET.SubElement.__module__, '_elementtree') |
| |
| def test_correct_import_cET_alias(self): |
| self.assertEqual(cET_alias.SubElement.__module__, '_elementtree') |
| |
| def test_parser_comes_from_C(self): |
| # The type of methods defined in Python code is types.FunctionType, |
| # while the type of methods defined inside _elementtree is |
| # <class 'wrapper_descriptor'> |
| self.assertNotIsInstance(cET.Element.__init__, types.FunctionType) |
| |
| |
| @unittest.skipUnless(cET, 'requires _elementtree') |
| @support.cpython_only |
| class SizeofTest(unittest.TestCase): |
| def setUp(self): |
| self.elementsize = support.calcobjsize('5P') |
| # extra |
| self.extra = struct.calcsize('PnnP4P') |
| |
| check_sizeof = support.check_sizeof |
| |
| def test_element(self): |
| e = cET.Element('a') |
| self.check_sizeof(e, self.elementsize) |
| |
| def test_element_with_attrib(self): |
| e = cET.Element('a', href='about:') |
| self.check_sizeof(e, self.elementsize + self.extra) |
| |
| def test_element_with_children(self): |
| e = cET.Element('a') |
| for i in range(5): |
| cET.SubElement(e, 'span') |
| # should have space for 8 children now |
| self.check_sizeof(e, self.elementsize + self.extra + |
| struct.calcsize('8P')) |
| |
| def test_main(): |
| from test import test_xml_etree, test_xml_etree_c |
| |
| # Run the tests specific to the C implementation |
| support.run_unittest( |
| MiscTests, |
| TestAliasWorking, |
| TestAcceleratorImported, |
| SizeofTest, |
| ) |
| |
| # Run the same test suite as the Python module |
| test_xml_etree.test_main(module=cET) |
| |
| |
| if __name__ == '__main__': |
| test_main() |