Resolve analysis issues with sprite and block counts

lib/analyze.js

@@ -69,6 +69,24 @@ function extract (project, attribute, id, hash) {
     return result;
 }
 
+/**
+ * Extract number of sprites from a project object. Will attempt to ignore
+ * "children" which are not sprites.
+ *
+ * @param  {Object} input Project object
+ *
+ * @return {Object}       Sprite information
+ */
+function sprites (input) {
+    var result = 0;
+
+    for (var i in input.children) {
+        if (input.children[i].hasOwnProperty('spriteInfo')) result++;
+    }
+
+    return { count: result };
+}
+
 /**
  * Tallys term frequency from an array of strings.
  *
@@ -118,7 +136,7 @@ function blocks (project) {
             if (stack[i][0] === 'procDef') continue;
 
             // Move to next item and walk
-            walk(stack[i][0].slice(1));
+            walk(stack[i].slice(1));
         }
     }
     walk(flatten(project, 'scripts'));
@@ -169,7 +187,6 @@ function extensions (project) {
 module.exports = function (project, callback) {
     // Create metadata object
     var meta = {
-        sprites: extract(project, 'children'),
         scripts: extract(project, 'scripts'),
         variables: extract(project, 'variables', 'name'),
         lists: extract(project, 'lists', 'listName'),
@@ -178,6 +195,9 @@ module.exports = function (project, callback) {
         costumes: extract(project, 'costumes', 'costumeName', 'baseLayerMD5')
     };
 
+    // Sprites
+    meta.sprites = sprites(project);
+
     // Blocks
     meta.blocks = blocks(project);
 

test/unit/analyze.js

@@ -12,10 +12,30 @@ test('empty project', function (t) {
 });
 
 test('example project', function (t) {
-    analyze(JSON.parse(data.example.json.toString()), function (err, project) {
+    analyze(JSON.parse(data.example.json.toString()), function (err, res) {
         t.equal(err, null);
-        t.type(project, 'object');
-        t.type(project._meta, 'object');
+        t.type(res, 'object');
+        t.type(res._meta, 'object');
+        t.type(res._meta.sprites, 'object');
+        t.type(res._meta.scripts, 'object');
+        t.type(res._meta.variables, 'object');
+        t.type(res._meta.lists, 'object');
+        t.type(res._meta.comments, 'object');
+        t.type(res._meta.sounds, 'object');
+        t.type(res._meta.costumes, 'object');
+        t.type(res._meta.blocks, 'object');
+        t.type(res._meta.extensions, 'object');
+
+        t.equal(res._meta.sprites.count, 2, 'expected number of sprites');
+        t.equal(res._meta.scripts.count, 5, 'expected number of scripts');
+        t.equal(res._meta.variables.count, 2, 'expected number of variables');
+        t.equal(res._meta.lists.count, 2, 'expected number of lists');
+        t.equal(res._meta.comments.count, 1, 'expected number of comments');
+        t.equal(res._meta.sounds.count, 4, 'expected number of sounds');
+        t.equal(res._meta.costumes.count, 16, 'expected number of costumes');
+        t.equal(res._meta.blocks.count, 16, 'expected number of blocks');
+        t.equal(res._meta.blocks.unique, 11, 'exepected number of blocks');
+        t.equal(res._meta.extensions.count, 1, 'expected number of extensions');
 
         t.end();
     });