test: fix n-api test_constructor

Author: boingoing

test/addons-napi/test_constructor/test.js

@@ -13,8 +13,13 @@ assert.strictEqual(test_object.readwriteValue, 1);
 test_object.readwriteValue = 2;
 assert.strictEqual(test_object.readwriteValue, 2);
 
-assert.throws(() => { test_object.readonlyValue = 3; },
-              /^TypeError: Cannot assign to read only property 'readonlyValue' of object '#<MyObject>'$/);
+assert.throws(
+  () => { test_object.readonlyValue = 3; },
+  common.engineSpecificMessage({
+    v8: /^TypeError: Cannot assign to read only property 'readonlyValue' of object '#<MyObject>'$/,
+    chakracore: /^TypeError: Assignment to read-only properties is not allowed in strict mode$/
+  })
+);
 
 assert.ok(test_object.hiddenValue);
 
@@ -36,13 +41,24 @@ assert.ok(!propertyNames.includes('readonlyAccessor2'));
 test_object.readwriteAccessor1 = 1;
 assert.strictEqual(test_object.readwriteAccessor1, 1);
 assert.strictEqual(test_object.readonlyAccessor1, 1);
-assert.throws(() => { test_object.readonlyAccessor1 = 3; },
-              /^TypeError: Cannot assign to read only property 'readonlyAccessor1' of object '#<MyObject>'$/);
+assert.throws(
+  () => { test_object.readonlyAccessor1 = 3; },
+  common.engineSpecificMessage({
+    v8: /^TypeError: Cannot assign to read only property 'readonlyAccessor1' of object '#<MyObject>'$/,
+    chakracore: /^TypeError: Assignment to read-only properties is not allowed in strict mode$/
+  })
+);
+
 test_object.readwriteAccessor2 = 2;
 assert.strictEqual(test_object.readwriteAccessor2, 2);
 assert.strictEqual(test_object.readonlyAccessor2, 2);
-assert.throws(() => { test_object.readonlyAccessor2 = 3; },
-              /^TypeError: Cannot assign to read only property 'readonlyAccessor2' of object '#<MyObject>'$/);
+assert.throws(
+  () => { test_object.readonlyAccessor2 = 3; },
+  common.engineSpecificMessage({
+    v8: /^TypeError: Cannot assign to read only property 'readonlyAccessor2' of object '#<MyObject>'$/,
+    chakracore: /^TypeError: Assignment to read-only properties is not allowed in strict mode$/
+  })
+);
 
 // validate that static properties are on the class as opposed
 // to the instance