// PERFORM_MUTATION
//
public void performMutation(DataElement obj, int num)
{
logger.Debug("performMutation(num=" + num + ")");
Dom.Array objAsArray = (Dom.Array)obj;
//if (num == 0)
// return;
if (num < objAsArray.Count)
{
// remove some items
for (int i = objAsArray.Count - 1; i >= num; --i)
{
if (objAsArray[i] == null)
{
break;
}
objAsArray.RemoveAt(i);
}
}
else if (num > objAsArray.Count)
{
// add some items, but do it by replicating
// the last item over and over to save memory
objAsArray.ExpandTo(num);
}
}
public void SlurpArray()
{
string xml = @"
<Peach>
<DataModel name='TheDataModel'>
<String name='str' value='Hello'/>
<Block name='blk' minOccurs='1'>
<String name='val'/>
</Block>
</DataModel>
<StateModel name='TheState' initialState='State1'>
<State name='State1'>
<Action type='output'>
<DataModel ref='TheDataModel'/>
</Action>
</State>
</StateModel>
<Test name='Default'>
<StateModel ref='TheState'/>
<Publisher class='Console'/>
</Test>
</Peach>
";
PitParser parser = new PitParser();
Dom.Dom dom = parser.asParser(null, new MemoryStream(ASCIIEncoding.ASCII.GetBytes(xml)));
Dom.Array array = dom.tests[0].stateModel.states["State1"].actions[0].dataModel[1] as Dom.Array;
array.ExpandTo(50);
PeachXPathNavigator navi = new PeachXPathNavigator(dom);
var iter = navi.Select("//str");
if (!iter.MoveNext())
{
Assert.Fail();
}
DataElement valueElement = ((PeachXPathNavigator)iter.Current).currentNode as DataElement;
if (valueElement == null)
{
Assert.Fail();
}
if (iter.MoveNext())
{
Assert.Fail();
}
iter = navi.Select("//val");
if (!iter.MoveNext())
{
Assert.Fail();
}
int count = 0;
do
{
var setElement = ((PeachXPathNavigator)iter.Current).currentNode as DataElement;
if (setElement == null)
{
Assert.Fail();
}
setElement.DefaultValue = valueElement.DefaultValue;
++count;
}while (iter.MoveNext());
// When Array.ExpandTo() is used, it duplicates the element and adds that
// same element over and over, so there are really only 2 unique elements in the array...
Assert.AreEqual(2, count);
Assert.AreEqual(50, array.Count);
int hash = 0;
for (int i = 0; i < array.Count; ++i)
{
if (i <= 1)
{
hash = array[i].GetHashCode();
}
Assert.AreEqual(hash, array[i].GetHashCode());
var b = array[i] as Block;
Assert.NotNull(b);
Assert.AreEqual("Hello", (string)b[0].DefaultValue);
}
}