Add a not include assertion

Author: mcfedr

lib/assert/macros.js

@@ -92,6 +92,20 @@ assert.include = function (actual, expected, message) {
 };
 assert.includes = assert.include;
 
+assert.notInclude = function (actual, expected, message) {
+    if ((function (obj) {
+        if (isArray(obj) || isString(obj)) {
+            return obj.indexOf(expected) !== -1;
+        } else if (isObject(actual)) {
+            return obj.hasOwnProperty(expected);
+        }
+        return true;
+    })(actual)) {
+        assert.fail(actual, expected, message || "expected {actual} not to include {expected}", "include", assert.notInclude);
+    }
+};
+assert.notIncludes = assert.notIncludes;
+
 assert.deepInclude = function (actual, expected, message) {
     if (!isArray(actual)) {
         return assert.include(actual, expected, message);