Reify that regular extendDeep doesn't deep-copy typed arrays

monfera · monfera · commit 0948e58040e3 · 2016-08-19T13:32:40.000+02:00
(cherry picked from commit 65aeac5)
diff --git a/test/jasmine/tests/extend_test.js b/test/jasmine/tests/extend_test.js
@@ -505,4 +505,20 @@ describe('array by reference vs deep-copy', function() {
         expect(ext.foo.bop).toBe(tar.foo.bop);
     });
 
+    it('extendDeep ALSO includes by reference typed arrays from source', function() {
+        var src = {foo: {bar: new Int32Array([1, 2, 3]), baz: new Float32Array([5, 4, 3])}};
+        var tar = {foo: {bar: new Int16Array([4, 5, 6]), bop: new Float64Array([8, 2, 1])}};
+        var ext = extendDeep(tar, src);
+
+        expect(ext).not.toBe(src);
+        expect(ext).toBe(tar);
+
+        expect(ext.foo).not.toBe(src.foo);
+        expect(ext.foo).toBe(tar.foo);
+
+        expect(ext.foo.bar).toBe(src.foo.bar);
+        expect(ext.foo.baz).toBe(src.foo.baz);
+        expect(ext.foo.bop).toBe(tar.foo.bop);
+    });
+
 });
