test: verify napi_get_property() walks prototype

Refs: https://github.com/nodejs/node/issues/13925
PR-URL: https://github.com/nodejs/node/pull/13961
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/test/addons-napi/test_object/test.js b/test/addons-napi/test_object/test.js
index 4b64fa4b381..c9c549c8274 100644
--- a/test/addons-napi/test_object/test.js
+++ b/test/addons-napi/test_object/test.js
@@ -32,6 +32,25 @@ assert.strictEqual(newObject.test_number, 987654321);
 assert.strictEqual(newObject.test_string, 'test string');
 
 {
+  // Verify that napi_get_property() walks the prototype chain.
+  function MyObject() {
+    this.foo = 42;
+    this.bar = 43;
+  }
+
+  MyObject.prototype.bar = 44;
+  MyObject.prototype.baz = 45;
+
+  const obj = new MyObject();
+
+  assert.strictEqual(test_object.Get(obj, 'foo'), 42);
+  assert.strictEqual(test_object.Get(obj, 'bar'), 43);
+  assert.strictEqual(test_object.Get(obj, 'baz'), 45);
+  assert.strictEqual(test_object.Get(obj, 'toString'),
+                     Object.prototype.toString);
+}
+
+{
   // test_object.Inflate increases all properties by 1
   const cube = {
     x: 10,