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authorshiqian <shiqian@861a406c-534a-0410-8894-cb66d6ee9925>2008-07-03 22:38:12 +0000
committershiqian <shiqian@861a406c-534a-0410-8894-cb66d6ee9925>2008-07-03 22:38:12 +0000
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Initial import.
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+#!/usr/bin/env python
+#
+# Copyright 2006, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Unit test utilities for gtest_xml_output"""
+
+__author__ = 'eefacm@gmail.com (Sean Mcafee)'
+
+import re
+import unittest
+
+from xml.dom import minidom, Node
+
+GTEST_OUTPUT_FLAG = "--gtest_output"
+GTEST_DEFAULT_OUTPUT_FILE = "test_detail.xml"
+
+class GTestXMLTestCase(unittest.TestCase):
+ """
+ Base class for tests of Google Test's XML output functionality.
+ """
+
+
+ def _AssertEquivalentElements(self, expected_element, actual_element):
+ """
+ Asserts that actual_element (a DOM element object) is equivalent to
+ expected_element (another DOM element object), in that it meets all
+ of the following conditions:
+ * It has the same tag name as expected_element.
+ * It has the same set of attributes as expected_element, each with
+ the same value as the corresponding attribute of expected_element.
+ An exception is any attribute named "time", which need only be
+ convertible to a long integer.
+ * Each child element is equivalent to a child element of
+ expected_element. Child elements are matched according to an
+ attribute that varies depending on the element; "name" for
+ <testsuite> and <testcase> elements, "message" for <failure>
+ elements. This matching is necessary because child elements are
+ not guaranteed to be ordered in any particular way.
+ """
+ self.assertEquals(expected_element.tagName, actual_element.tagName)
+
+ expected_attributes = expected_element.attributes
+ actual_attributes = actual_element .attributes
+ self.assertEquals(expected_attributes.length, actual_attributes.length)
+ for i in range(expected_attributes.length):
+ expected_attr = expected_attributes.item(i)
+ actual_attr = actual_attributes.get(expected_attr.name)
+ self.assert_(actual_attr is not None)
+ self.assertEquals(expected_attr.value, actual_attr.value)
+
+ expected_child = self._GetChildElements(expected_element)
+ actual_child = self._GetChildElements(actual_element)
+ self.assertEquals(len(expected_child), len(actual_child))
+ for child_id, element in expected_child.iteritems():
+ self.assert_(child_id in actual_child,
+ '<%s> is not in <%s>' % (child_id, actual_child))
+ self._AssertEquivalentElements(element, actual_child[child_id])
+
+ identifying_attribute = {
+ "testsuite": "name",
+ "testcase": "name",
+ "failure": "message",
+ }
+
+ def _GetChildElements(self, element):
+ """
+ Fetches all of the Element type child nodes of element, a DOM
+ Element object. Returns them as the values of a dictionary keyed by
+ the value of one of the node's attributes. For <testsuite> and
+ <testcase> elements, the identifying attribute is "name"; for
+ <failure> elements, it is "message". An exception is raised if
+ any element other than the above three is encountered, if two
+ child elements with the same identifying attributes are encountered,
+ or if any other type of node is encountered, other than Text nodes
+ containing only whitespace.
+ """
+ children = {}
+ for child in element.childNodes:
+ if child.nodeType == Node.ELEMENT_NODE:
+ self.assert_(child.tagName in self.identifying_attribute,
+ "Encountered unknown element <%s>" % child.tagName)
+ childID = child.getAttribute(self.identifying_attribute[child.tagName])
+ self.assert_(childID not in children)
+ children[childID] = child
+ elif child.nodeType == Node.TEXT_NODE:
+ self.assert_(child.nodeValue.isspace())
+ else:
+ self.fail("Encountered unexpected node type %d" % child.nodeType)
+ return children
+
+ def _NormalizeXml(self, element):
+ """
+ Normalizes Google Test's XML output to eliminate references to transient
+ information that may change from run to run.
+
+ * The "time" attribute of <testsuite> and <testcase> elements is
+ replaced with a single asterisk, if it contains only digit
+ characters.
+ * The line number reported in the first line of the "message"
+ attribute of <failure> elements is replaced with a single asterisk.
+ * The directory names in file paths are removed.
+ """
+ if element.tagName in ("testsuite", "testcase"):
+ time = element.getAttributeNode("time")
+ time.value = re.sub(r"^\d+$", "*", time.value)
+ elif element.tagName == "failure":
+ message = element.getAttributeNode("message")
+ message.value = re.sub(r"^.*/(.*:)\d+\n", "\\1*\n", message.value)
+ for child in element.childNodes:
+ if child.nodeType == Node.ELEMENT_NODE:
+ self._NormalizeXml(child)