Test _.restParam

test/functions.js

@@ -588,4 +588,32 @@
 
   });
 
+  test('restParam', 10, function() {
+    _.restParam(function(a, args) {
+        strictEqual(a, 1);
+        deepEqual(args, [2, 3], 'collects rest arguments into an array');
+    })(1, 2, 3);
+
+    _.restParam(function(a, args) {
+        strictEqual(a, undefined);
+        deepEqual(args, [], 'passes empty array if there are not enough arguments');
+    })();
+
+    _.restParam(function(a, b, c, args) {
+        strictEqual(arguments.length, 4);
+        deepEqual(args, [4, 5], 'works on functions with many named parameters');
+    })(1, 2, 3, 4, 5);
+
+    var obj = {};
+    _.restParam(function() {
+        strictEqual(this, obj, 'invokes function with this context');
+    }).call(obj);
+
+    _.restParam(function(array, iteratee, context) {
+        deepEqual(array, [1, 2, 3, 4], 'startIndex can be used manually specify index of rest parameter');
+        strictEqual(iteratee, undefined);
+        strictEqual(context, undefined);
+    }, 0)(1, 2, 3, 4);
+  });
+
 }());