Add failing test for empty-nest case

[rschick]

Hi,

I was hoping you could help fix this test case. I'm pretty sure it should pass.

First test passes, 2nd one with the empty nested foreach fails.

I've spent some time trying to figure out how to fix it, but couldn't find a fix.

Thanks,
Russ

[shepherdwind]

ok, thanks for you test case, I will fix it soon

[shepherdwind]

I fix it now, 0.8.5 published.

This bug fixed by do this commit 821b506#diff-a509cb5a1016a02a707bb7b706e93c5cR222 .

When foreach loop start, I will create a local contextId, and push it to this.condictions at this._render. _render will render asts tree with an new context local. when variable lookup, will from the top condition item first.

// code at  blocks.js getBlockEach 
        this.local[contextId] = local;
        ret += this._render(_block, contextId);

// code as refefences.js getLocal
      utils.some(this.conditions, function(contextId) {
        var _local = local[contextId];
        if (id in _local) {
          ret = _local[id];
          return true;
        }

        return false;
      }, this);

But, when empty foreach , _render do not run, and after the clear context is already run. So render this inner foreach, will empty the parent context, and $foreach.hasNext return to null.

[rschick]

Thanks very much!