Fix CMap unit tests

When the binary CMaps were added, some of the relevant unit tests were not changed. This patch updates them, so that we actually test the current implementation.
What's somewhat troubling here is that we currently have CMap unit tests that passes, *despite* not working as intended (the CMap files doesn't load).

test/unit/cmap_spec.js

@@ -4,6 +4,9 @@
 
 'use strict';
 
+var cMapUrl = '../../external/bcmaps/';
+var cMapPacked = true;
+
 describe('cmap', function() {
   it('parses beginbfchar', function() {
     var str = '2 beginbfchar\n' +
@@ -87,8 +90,10 @@ describe('cmap', function() {
   it('read usecmap', function() {
     var str = '/Adobe-Japan1-1 usecmap\n';
     var stream = new StringStream(str);
-    var cmap = CMapFactory.create(stream, null, '../../external/cmaps/');
-    expect(cmap.useCMap).toBeDefined();
+    var cmap = CMapFactory.create(stream,
+                                  { url: cMapUrl, packed: cMapPacked }, null);
+    expect(cmap.useCMap).not.toBeNull();
+    expect(cmap.builtInCMap).toBeUndefined();
   });
   it('parses wmode', function() {
     var str = '/WMode 1 def\n';
@@ -97,8 +102,10 @@ describe('cmap', function() {
     expect(cmap.vertical).toEqual(true);
   });
   it('loads built in cmap', function() {
-    CMapFactory.create(new Name('Adobe-Japan1-1'), '../../external/cmaps/',
-                       null);
+    var cmap = CMapFactory.create(new Name('Adobe-Japan1-1'),
+                                  { url: cMapUrl, packed: cMapPacked }, null);
+    expect(cmap.useCMap).toBeNull();
+    expect(cmap.builtInCMap).toBeTruthy();
   });
 });