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app/node_modules/traverse/test/json.js

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+var assert = require('assert');
+var Traverse = require('traverse');
+
+exports['json test'] = function () {
+    var id = 54;
+    var callbacks = {};
+    var obj = { moo : function () {}, foo : [2,3,4, function () {}] };
+    
+    var scrubbed = Traverse(obj).map(function (x) {
+        if (typeof x === 'function') {
+            callbacks[id] = { id : id, f : x, path : this.path };
+            this.update('[Function]');
+            id++;
+        }
+    });
+    
+    assert.equal(
+        scrubbed.moo, '[Function]',
+        'obj.moo replaced with "[Function]"'
+    );
+    
+    assert.equal(
+        scrubbed.foo[3], '[Function]',
+        'obj.foo[3] replaced with "[Function]"'
+    );
+    
+    assert.deepEqual(scrubbed, {
+        moo : '[Function]',
+        foo : [ 2, 3, 4, "[Function]" ]
+    }, 'Full JSON string matches');
+    
+    assert.deepEqual(
+        typeof obj.moo, 'function',
+        'Original obj.moo still a function'
+    );
+    
+    assert.deepEqual(
+        typeof obj.foo[3], 'function',
+        'Original obj.foo[3] still a function'
+    );
+    
+    assert.deepEqual(callbacks, {
+        54: { id: 54, f : obj.moo, path: [ 'moo' ] },
+        55: { id: 55, f : obj.foo[3], path: [ 'foo', '3' ] },
+    }, 'Check the generated callbacks list');
+};
+