public override bool Matches(IEnumerable actual, IMatchDiagnostics diagnostics)
{
if (actual == null)
{
diagnostics.MisMatched(Description.With().Value("items are null").Value("expected", "not null"));
return(false);
}
var items = AsEfficientList(actual);
var matcher = new MatchContext(m_matchers);
if (!matcher.CanStillMatch())
{
//no matchers so all ok
return(true);
}
matcher.NextMatcher();
Object lastMatchedItem = default(T);
int lastMatchedItemIdx = -1;
for (int i = 0; i < items.Count && matcher.CanStillMatch(); i++)
{
var item = items[i];
if (matcher.Matches(item, i, diagnostics))
{
lastMatchedItem = item;
lastMatchedItemIdx = i;
matcher.NextMatcher();
}
}
//check all matchers matched
if (matcher.CanStillMatch())
{
matcher.AddMisMatchMessage(diagnostics, lastMatchedItem, lastMatchedItemIdx, items);
return(false);
}
return(true);
}
public override bool Matches(IEnumerable actual, IMatchDiagnostics diagnostics)
{
if (actual == null)
{
diagnostics.MisMatched("items are null");
return(false);
}
var list = AsEfficientList(actual);
var passed = true;
var ctxt = new MatchContext(m_matchers);
int pos = 0;
for (; pos < list.Count; pos++)
{
var item = list[pos];
var matchPassed = false;
if (ctxt.MatchersRemain())
{
if (m_failOnAdditionalItems)
{
matchPassed = ctxt.Matches(item, pos, diagnostics);
}
else
{
//prevent useless diagnostics messages appearing in output as we call the matchers
//repeatably as we try to find a match
var childDiag = diagnostics.NewChild();
matchPassed = ctxt.Matches(item, pos, childDiag);
if (matchPassed)
{
diagnostics.Value(childDiag);
}
}
}
if (!matchPassed)
{
if (m_failOnAdditionalItems)
{
passed = false;
}
}
if (!passed)
{
var child = diagnostics.NewChild();
child.Value("position", pos);
child.Value("item", item);
diagnostics.MisMatched(child);
break;
}
}
if (ctxt.MatchersRemain())
{
passed = false;
}
if (!passed)
{
if (!ctxt.MatchersRemain())
{
diagnostics.Text("All matchers matched");
}
ctxt.AddMisMatchMessage(diagnostics);
if (pos < list.Count)
{
diagnostics.Child("Additional items not matched", SubSet(pos, list));
}
}
return(passed);
}
