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191 lines
8.5 KiB
191 lines
8.5 KiB
4 years ago
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#!/usr/bin/env python
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#
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# Copyright 2006, Google Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""Unit test utilities for gtest_xml_output"""
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__author__ = 'eefacm@gmail.com (Sean Mcafee)'
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import re
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from xml.dom import minidom, Node
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import gtest_test_utils
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GTEST_OUTPUT_FLAG = '--gtest_output'
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GTEST_DEFAULT_OUTPUT_FILE = 'test_detail.xml'
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class GTestXMLTestCase(gtest_test_utils.TestCase):
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"""
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Base class for tests of Google Test's XML output functionality.
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"""
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def AssertEquivalentNodes(self, expected_node, actual_node):
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"""
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Asserts that actual_node (a DOM node object) is equivalent to
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expected_node (another DOM node object), in that either both of
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them are CDATA nodes and have the same value, or both are DOM
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elements and actual_node meets all of the following conditions:
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* It has the same tag name as expected_node.
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* It has the same set of attributes as expected_node, each with
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the same value as the corresponding attribute of expected_node.
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Exceptions are any attribute named "time", which needs only be
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convertible to a floating-point number and any attribute named
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"type_param" which only has to be non-empty.
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* It has an equivalent set of child nodes (including elements and
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CDATA sections) as expected_node. Note that we ignore the
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order of the children as they are not guaranteed to be in any
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particular order.
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"""
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if expected_node.nodeType == Node.CDATA_SECTION_NODE:
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self.assertEquals(Node.CDATA_SECTION_NODE, actual_node.nodeType)
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self.assertEquals(expected_node.nodeValue, actual_node.nodeValue)
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return
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self.assertEquals(Node.ELEMENT_NODE, actual_node.nodeType)
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self.assertEquals(Node.ELEMENT_NODE, expected_node.nodeType)
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self.assertEquals(expected_node.tagName, actual_node.tagName)
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expected_attributes = expected_node.attributes
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actual_attributes = actual_node .attributes
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self.assertEquals(
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expected_attributes.length, actual_attributes.length,
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'attribute numbers differ in element ' + actual_node.tagName)
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for i in range(expected_attributes.length):
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expected_attr = expected_attributes.item(i)
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actual_attr = actual_attributes.get(expected_attr.name)
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self.assert_(
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actual_attr is not None,
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'expected attribute %s not found in element %s' %
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(expected_attr.name, actual_node.tagName))
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self.assertEquals(expected_attr.value, actual_attr.value,
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' values of attribute %s in element %s differ' %
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(expected_attr.name, actual_node.tagName))
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expected_children = self._GetChildren(expected_node)
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actual_children = self._GetChildren(actual_node)
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self.assertEquals(
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len(expected_children), len(actual_children),
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'number of child elements differ in element ' + actual_node.tagName)
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for child_id, child in expected_children.iteritems():
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self.assert_(child_id in actual_children,
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'<%s> is not in <%s> (in element %s)' %
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(child_id, actual_children, actual_node.tagName))
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self.AssertEquivalentNodes(child, actual_children[child_id])
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identifying_attribute = {
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'testsuites': 'name',
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'testsuite': 'name',
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'testcase': 'name',
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'failure': 'message',
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}
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def _GetChildren(self, element):
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"""
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Fetches all of the child nodes of element, a DOM Element object.
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Returns them as the values of a dictionary keyed by the IDs of the
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children. For <testsuites>, <testsuite> and <testcase> elements, the ID
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is the value of their "name" attribute; for <failure> elements, it is
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the value of the "message" attribute; CDATA sections and non-whitespace
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text nodes are concatenated into a single CDATA section with ID
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"detail". An exception is raised if any element other than the above
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four is encountered, if two child elements with the same identifying
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attributes are encountered, or if any other type of node is encountered.
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"""
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children = {}
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for child in element.childNodes:
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if child.nodeType == Node.ELEMENT_NODE:
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self.assert_(child.tagName in self.identifying_attribute,
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'Encountered unknown element <%s>' % child.tagName)
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childID = child.getAttribute(self.identifying_attribute[child.tagName])
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self.assert_(childID not in children)
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children[childID] = child
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elif child.nodeType in [Node.TEXT_NODE, Node.CDATA_SECTION_NODE]:
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if 'detail' not in children:
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if (child.nodeType == Node.CDATA_SECTION_NODE or
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not child.nodeValue.isspace()):
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children['detail'] = child.ownerDocument.createCDATASection(
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child.nodeValue)
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else:
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children['detail'].nodeValue += child.nodeValue
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else:
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self.fail('Encountered unexpected node type %d' % child.nodeType)
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return children
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def NormalizeXml(self, element):
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"""
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Normalizes Google Test's XML output to eliminate references to transient
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information that may change from run to run.
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* The "time" attribute of <testsuites>, <testsuite> and <testcase>
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elements is replaced with a single asterisk, if it contains
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only digit characters.
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* The "timestamp" attribute of <testsuites> elements is replaced with a
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single asterisk, if it contains a valid ISO8601 datetime value.
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* The "type_param" attribute of <testcase> elements is replaced with a
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single asterisk (if it sn non-empty) as it is the type name returned
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by the compiler and is platform dependent.
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* The line info reported in the first line of the "message"
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attribute and CDATA section of <failure> elements is replaced with the
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file's basename and a single asterisk for the line number.
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* The directory names in file paths are removed.
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* The stack traces are removed.
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"""
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if element.tagName == 'testsuites':
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timestamp = element.getAttributeNode('timestamp')
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timestamp.value = re.sub(r'^\d{4}-\d\d-\d\dT\d\d:\d\d:\d\d$',
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'*', timestamp.value)
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if element.tagName in ('testsuites', 'testsuite', 'testcase'):
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time = element.getAttributeNode('time')
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time.value = re.sub(r'^\d+(\.\d+)?$', '*', time.value)
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type_param = element.getAttributeNode('type_param')
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if type_param and type_param.value:
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type_param.value = '*'
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elif element.tagName == 'failure':
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source_line_pat = r'^.*[/\\](.*:)\d+\n'
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# Replaces the source line information with a normalized form.
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message = element.getAttributeNode('message')
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message.value = re.sub(source_line_pat, '\\1*\n', message.value)
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for child in element.childNodes:
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if child.nodeType == Node.CDATA_SECTION_NODE:
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# Replaces the source line information with a normalized form.
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cdata = re.sub(source_line_pat, '\\1*\n', child.nodeValue)
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# Removes the actual stack trace.
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child.nodeValue = re.sub(r'\nStack trace:\n(.|\n)*',
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'', cdata)
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for child in element.childNodes:
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if child.nodeType == Node.ELEMENT_NODE:
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self.NormalizeXml(child)
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