[GROOVY-4010] XmlParser wraps nested elements in extra ArrayList

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.6.7
• Fix Version/s: 1.6.8, 1.7.1
• Environment: Grails 1.2, Groovy 1.6.7
• Assignee: Jochen Theodorou
• Reporter: James Cook
• Created: 05/Jan/10 04:34
• Updated: 19/Feb/10 07:12
• Resolved: 19/Feb/10 07:12

Description

When using XmlParser we are experienceing different behaviour within Grails 1.2 than directly using Groovy 1.6.7. The issue manifests itself when accessing nested elements in a document.

example, this works fine from within GroovyConsole 1.6.7:

def XML = '''<channel>
  <item id="1"/>
  <item id="2"/>
  <item id="3"/>
</channel>'''
assert 3 == new XmlParser().parseText(XML).item.size()
assert 3 == new XmlParser().parseText("<rss>$XML</rss>").channel.item.size()

Here is a test case that passed under Grails 1.1.1 but fails under 1.2:

class XMLUnitTests extends GroovyTestCase {
    def XML = '''
        <channel>
          <item id="1"/>
          <item id="2"/>
          <item id="3"/>
        </channel>
    '''

    void testOneLevel() {
        def records = new XmlParser().parseText(XML)
        assertEquals 3, records.item.size()
    }

    void testTwoLevels() {
        def records = new XmlParser().parseText("<rss>$XML</rss>")
        assertEquals 3, records.channel.item.size()
    }
}