grunt-contrib-jasmine/tasks/jasmine/templates/JUnit.tmpl

<?xml version="1.0" encoding="UTF-8" ?>
<testsuites>
<% testsuites.forEach(function(testsuite) { %>
  <testsuite name="<%- testsuite.name %>" errors="<%= testsuite.errors %>" tests="<%= testsuite.tests %>" failures="<%= testsuite.failures %>" time="<%= testsuite.time %>" timestamp="<%= testsuite.timestamp %>">
    <% testsuite.testcases.forEach(function(testcase) { %>
      <testcase assertions="<%= testcase.assertions %>" classname="<%- testcase.classname %>" name="<%- testcase.name %>" time="<%= testcase.time %>">
        <% testcase.failureMessages.forEach(function(message) { %>
          <failure><%= message %></failure>
        <% }) %>
      </testcase>
    <% }) %>
  </testsuite>
<% }) %>
</testsuites>