Add support for JUnit compatible XML output in the new test runner.

tools/testrunner/local/junit_output.py

+# Copyright 2013 the V8 project authors. 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.
+
+
+import xml.etree.ElementTree as xml
+
+
+class JUnitTestOutput:
+  def __init__(self, test_suite_name):
+    self.root = xml.Element("testsuite")
+    self.root.attrib["name"] = test_suite_name
+
+  def HasRunTest(self, test_name, test_duration, test_failure):
+    testCaseElement = xml.Element("testcase")
+    testCaseElement.attrib["name"] = " ".join(test_name)
+    testCaseElement.attrib["time"] = str(round(test_duration, 3))
+    if len(test_failure):
+      failureElement = xml.Element("failure")
+      failureElement.text = test_failure
+      testCaseElement.append(failureElement)
+    self.root.append(testCaseElement)
+
+  def FinishAndWrite(self, file):
+    xml.ElementTree(self.root).write(file, "UTF-8")
+