XML.parse(string) on single instance results causes No such property: applicationContext for class

Originally reported on Google Code with ID 185

1. A controller that embodies the following code:
def getById = {
  Style style = Style.get(params.id)
  render style as XML
}

2. A spec method that looks as follows:
void "get by id action returns a single style"() {
    given:
    mockParams.id = style3.id

    when:
    controller.getById()
    def xmlString = controller.response.contentAsString
    def result = XML.parse(xmlString)

    then:
    result.id == style3.id
    result.name == style3.name
    result.shortDescription == style3.shortDescription
    result.longDescription == style3.longDescription
}   



3. Causes Errors with the following stacktrace:
No such property: applicationContext for class: com.burberry.apps.catalogue.StyleControllerSpec
groovy.lang.MissingPropertyException: No such property: applicationContext for class:
com.burberry.apps.catalogue.StyleControllerSpec
    at grails.plugin.spock.UnitSpec.addConverters_closure6(UnitSpec.groovy:221)
    at com.burberry.apps.catalogue.StyleControllerSpec.get all action returns consistent
style elements(StyleControllerSpec.groovy:22)


What version of Spock and Groovy are you using?
I'm using Grails 1.3.7 with spock 0.6-SNAPSHOT

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The strange thing here is that when the controller returns multiple results the XML
class has no problems parsing, this only happens when parsing single entity results.

Reported by vermeulen.mp on 2011-06-07 10:42:31

Start with the reported StyleControllerSpec reproduction and the stack trace location in UnitSpec.groovy:221. Recreate it with Grails 1.3.7 and Spock 0.6-SNAPSHOT, comparing single-entity and multiple-result XML.parse cases. Done means the single-result case no longer raises MissingPropertyException and the regression is covered by the shown spec.