test: add additional tests for Object

Test that Object::GetPropertyNames does not
return properties whose key is a Symbol

PR-URL: #923
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: NickNaso <[email protected]>

Author: JoseExposito

test/binding.gyp

@@ -35,6 +35,7 @@
         'object/has_property.cc',
         'object/object.cc',
         'object/set_property.cc',
+        'object/subscript_operator.cc',
         'promise.cc',
         'run_script.cc',
         'threadsafe_function/threadsafe_function_ctx.cc',

test/object/get_property.js

@@ -12,19 +12,27 @@ function test(binding) {
     assert.strictEqual(nativeGetProperty(obj, 'test'), 1);
   }
 
+  function testShouldReturnUndefinedIfKeyIsNotPresent(nativeGetProperty) {
+    const obj = { };
+    assert.strictEqual(nativeGetProperty(obj, 'test'), undefined);
+  }
+
   function testShouldThrowErrorIfKeyIsInvalid(nativeGetProperty) {
     assert.throws(() => {
       nativeGetProperty(undefined, 'test');
     }, /Cannot convert undefined or null to object/);
   }
 
-  testGetProperty(binding.object.getPropertyWithNapiValue);
-  testGetProperty(binding.object.getPropertyWithNapiWrapperValue);
-  testGetProperty(binding.object.getPropertyWithCStyleString);
-  testGetProperty(binding.object.getPropertyWithCppStyleString);
+  const nativeFunctions = [
+    binding.object.getPropertyWithNapiValue,
+    binding.object.getPropertyWithNapiWrapperValue,
+    binding.object.getPropertyWithCStyleString,
+    binding.object.getPropertyWithCppStyleString
+  ];
 
-  testShouldThrowErrorIfKeyIsInvalid(binding.object.getPropertyWithNapiValue);
-  testShouldThrowErrorIfKeyIsInvalid(binding.object.getPropertyWithNapiWrapperValue);
-  testShouldThrowErrorIfKeyIsInvalid(binding.object.getPropertyWithCStyleString);
-  testShouldThrowErrorIfKeyIsInvalid(binding.object.getPropertyWithCppStyleString);
+  nativeFunctions.forEach((nativeFunction) => {
+    testGetProperty(nativeFunction);
+    testShouldReturnUndefinedIfKeyIsNotPresent(nativeFunction);
+    testShouldThrowErrorIfKeyIsInvalid(nativeFunction);
+  });
 }

test/object/object.cc

@@ -36,6 +36,14 @@ Value HasPropertyWithCppStyleString(const CallbackInfo& info);
 Value AddFinalizer(const CallbackInfo& info);
 Value AddFinalizerWithHint(const CallbackInfo& info);
 
+// Native wrappers for testing Object::operator []
+Value SubscriptGetWithCStyleString(const CallbackInfo& info);
+Value SubscriptGetWithCppStyleString(const CallbackInfo& info);
+Value SubscriptGetAtIndex(const CallbackInfo& info);
+void SubscriptSetWithCStyleString(const CallbackInfo& info);
+void SubscriptSetWithCppStyleString(const CallbackInfo& info);
+void SubscriptSetAtIndex(const CallbackInfo& info);
+
 static bool testValue = true;
 // Used to test void* Data() integrity
 struct UserDataHolder {
@@ -69,6 +77,19 @@ Value TestFunctionWithUserData(const CallbackInfo& info) {
   return Number::New(info.Env(), holder->value);
 }
 
+Value EmptyConstructor(const CallbackInfo& info) {
+  auto env = info.Env();
+  bool isEmpty = info[0].As<Boolean>();
+  Object object = isEmpty ? Object() : Object(env, Object::New(env));
+  return Boolean::New(env, object.IsEmpty());
+}
+
+Value ConstructorFromObject(const CallbackInfo& info) {
+  auto env = info.Env();
+  Object object = info[0].As<Object>();
+  return Object(env, object);
+}
+
 Array GetPropertyNames(const CallbackInfo& info) {
   Object obj = info[0].As<Object>();
   Array arr = obj.GetPropertyNames();
@@ -228,9 +249,18 @@ Value CreateObjectUsingMagic(const CallbackInfo& info) {
   return obj;
 }
 
+Value InstanceOf(const CallbackInfo& info) {
+  Object obj = info[0].As<Object>();
+  Function constructor = info[1].As<Function>();
+  return Boolean::New(info.Env(), obj.InstanceOf(constructor));
+}
+
 Object InitObject(Env env) {
   Object exports = Object::New(env);
 
+  exports["emptyConstructor"] = Function::New(env, EmptyConstructor);
+  exports["constructorFromObject"] = Function::New(env, ConstructorFromObject);
+
   exports["GetPropertyNames"] = Function::New(env, GetPropertyNames);
   exports["defineProperties"] = Function::New(env, DefineProperties);
   exports["defineValueProperty"] = Function::New(env, DefineValueProperty);
@@ -265,5 +295,18 @@ Object InitObject(Env env) {
   exports["addFinalizer"] = Function::New(env, AddFinalizer);
   exports["addFinalizerWithHint"] = Function::New(env, AddFinalizerWithHint);
 
+  exports["instanceOf"] = Function::New(env, InstanceOf);
+
+  exports["subscriptGetWithCStyleString"] =
+      Function::New(env, SubscriptGetWithCStyleString);
+  exports["subscriptGetWithCppStyleString"] =
+      Function::New(env, SubscriptGetWithCppStyleString);
+  exports["subscriptGetAtIndex"] = Function::New(env, SubscriptGetAtIndex);
+  exports["subscriptSetWithCStyleString"] =
+      Function::New(env, SubscriptSetWithCStyleString);
+  exports["subscriptSetWithCppStyleString"] =
+      Function::New(env, SubscriptSetWithCppStyleString);
+  exports["subscriptSetAtIndex"] = Function::New(env, SubscriptSetAtIndex);
+
   return exports;
 }

test/object/object.js

@@ -102,6 +102,17 @@ function test(binding) {
   testDefineProperties('string');
   testDefineProperties('value');
 
+  {
+    assert.strictEqual(binding.object.emptyConstructor(true), true);
+    assert.strictEqual(binding.object.emptyConstructor(false), false);
+  }
+
+  {
+    const expected = { 'one': 1, 'two': 2, 'three': 3 };
+    const actual = binding.object.constructorFromObject(expected);
+    assert.deepStrictEqual(actual, expected);
+  }
+
   {
     const obj = {};
     const testSym = Symbol();
@@ -110,9 +121,10 @@ function test(binding) {
   }
 
   {
-    const obj = {'one': 1, 'two': 2, 'three': 3};
+    const testSym = Symbol();
+    const obj = { 'one': 1, 'two': 2, 'three': 3, [testSym]: 4 };
     var arr = binding.object.GetPropertyNames(obj);
-    assert.deepStrictEqual(arr, ['one', 'two', 'three'])
+    assert.deepStrictEqual(arr, ['one', 'two', 'three']);
   }
 
   {
@@ -136,4 +148,13 @@ function test(binding) {
       circular2: magicObject
     });
   }
+
+  {
+    function Ctor() {};
+
+    assert.strictEqual(binding.object.instanceOf(new Ctor(), Ctor), true);
+    assert.strictEqual(binding.object.instanceOf(new Ctor(), Object), true);
+    assert.strictEqual(binding.object.instanceOf({}, Ctor), false);
+    assert.strictEqual(binding.object.instanceOf(null, Ctor), false);
+  }
 }

test/object/subscript_operator.cc

@@ -0,0 +1,42 @@
+#include "napi.h"
+
+using namespace Napi;
+
+Value SubscriptGetWithCStyleString(const CallbackInfo& info) {
+  Object obj = info[0].As<Object>();
+  String jsKey = info[1].As<String>();
+  return obj[jsKey.Utf8Value().c_str()];
+}
+
+Value SubscriptGetWithCppStyleString(const CallbackInfo& info) {
+  Object obj = info[0].As<Object>();
+  String jsKey = info[1].As<String>();
+  return obj[jsKey.Utf8Value()];
+}
+
+Value SubscriptGetAtIndex(const CallbackInfo& info) {
+  Object obj = info[0].As<Object>();
+  uint32_t index = info[1].As<Napi::Number>();
+  return obj[index];
+}
+
+void SubscriptSetWithCStyleString(const CallbackInfo& info) {
+  Object obj = info[0].As<Object>();
+  String jsKey = info[1].As<String>();
+  Value value = info[2];
+  obj[jsKey.Utf8Value().c_str()] = value;
+}
+
+void SubscriptSetWithCppStyleString(const CallbackInfo& info) {
+  Object obj = info[0].As<Object>();
+  String jsKey = info[1].As<String>();
+  Value value = info[2];
+  obj[jsKey.Utf8Value()] = value;
+}
+
+void SubscriptSetAtIndex(const CallbackInfo& info) {
+  Object obj = info[0].As<Object>();
+  uint32_t index = info[1].As<Napi::Number>();
+  Value value = info[2];
+  obj[index] = value;
+}

test/object/subscript_operator.js

@@ -0,0 +1,19 @@
+'use strict';
+
+const buildType = process.config.target_defaults.default_configuration;
+const assert = require('assert');
+
+test(require(`../build/${buildType}/binding.node`));
+test(require(`../build/${buildType}/binding_noexcept.node`));
+
+function test(binding) {
+  function testProperty(obj, key, value, nativeGetProperty, nativeSetProperty) {
+    nativeSetProperty(obj, key, value);
+    assert.strictEqual(nativeGetProperty(obj, key), value);
+  }
+
+  testProperty({}, 'key', 'value', binding.object.subscriptGetWithCStyleString, binding.object.subscriptSetWithCStyleString);
+  testProperty({ key: 'override me' }, 'key', 'value', binding.object.subscriptGetWithCppStyleString, binding.object.subscriptSetWithCppStyleString);
+  testProperty({}, 0, 'value', binding.object.subscriptGetAtIndex, binding.object.subscriptSetAtIndex);
+  testProperty({ key: 'override me' }, 0, 'value', binding.object.subscriptGetAtIndex, binding.object.subscriptSetAtIndex);
+}