fix handling of date objects (#2)

* fix handling of date objects

* add repo links to package.json

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@swimlane/obfuscator",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "Obfuscate objects based on a JSON Schema",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
@@ -44,6 +44,14 @@
     "json",
     "schema"
   ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/swimlane/obfuscator.git"
+  },
+  "bugs": {
+    "url": "https://github.com/swimlane/obfuscator/issues"
+  },
+  "homepage": "https://github.com/swimlane/obfuscator#readme",
   "author": "Swimlane <[email protected]>",
   "license": "AGPL-3.0",
   "nyc": {

src/Obfuscator.ts

@@ -233,6 +233,11 @@ export class Obfuscator {
       return newValue.map((nv, idx) => Obfuscator.unObfuscate(nv, prevValue[idx], replaceString));
     }
 
+    // date objects are safe
+    if (newValue !== null && newValue instanceof Date) {
+      return newValue;
+    }
+
     // unobfuscate values in an object
     if (newValue !== null && typeof newValue === 'object' && prevValue !== null && typeof prevValue === 'object') {
       const newObj = { ...newValue };

tests/Obfuscator.spec.ts

@@ -334,6 +334,20 @@ describe('Obfuscator', () => {
       expect(Obfuscator.unObfuscate(null, null)).to.be.null;
       done();
     });
+
+    it('should handle dates', done => {
+      const newDate = new Date();
+      const oldDate = new Date(new Date().getTime() - 1000);
+      const newVal = {
+        foo: Obfuscator.defaultReplaceString,
+        fizz: newDate
+      };
+      const oldVal = { foo: 'bar', fizz: oldDate };
+      const result = Obfuscator.unObfuscate(newVal, oldVal);
+      expect(result.fizz instanceof Date);
+      expect(result.fizz.getTime()).to.eq(newDate.getTime());
+      done();
+    });
   });
 
   describe('.predicateTypeFormat()', () => {