base/values_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <limits>
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "base/strings/string16.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "base/values.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12
  13 namespace base {
  14
  15 TEST(ValuesTest, Basic) {
  16   // Test basic dictionary getting/setting
  17   DictionaryValue settings;
  18   std::string homepage = "http://google.com";
  19   ASSERT_FALSE(settings.GetString("global.homepage", &homepage));
  20   ASSERT_EQ(std::string("http://google.com"), homepage);
  21
  22   ASSERT_FALSE(settings.Get("global", NULL));
  23   settings.Set("global", new FundamentalValue(true));
  24   ASSERT_TRUE(settings.Get("global", NULL));
  25   settings.SetString("global.homepage", "http://scurvy.com");
  26   ASSERT_TRUE(settings.Get("global", NULL));
  27   homepage = "http://google.com";
  28   ASSERT_TRUE(settings.GetString("global.homepage", &homepage));
  29   ASSERT_EQ(std::string("http://scurvy.com"), homepage);
  30
  31   // Test storing a dictionary in a list.
  32   ListValue* toolbar_bookmarks;
  33   ASSERT_FALSE(
  34     settings.GetList("global.toolbar.bookmarks", &toolbar_bookmarks));
  35
  36   toolbar_bookmarks = new ListValue;
  37   settings.Set("global.toolbar.bookmarks", toolbar_bookmarks);
  38   ASSERT_TRUE(settings.GetList("global.toolbar.bookmarks", &toolbar_bookmarks));
  39
  40   DictionaryValue* new_bookmark = new DictionaryValue;
  41   new_bookmark->SetString("name", "Froogle");
  42   new_bookmark->SetString("url", "http://froogle.com");
  43   toolbar_bookmarks->Append(new_bookmark);
  44
  45   ListValue* bookmark_list;
  46   ASSERT_TRUE(settings.GetList("global.toolbar.bookmarks", &bookmark_list));
  47   DictionaryValue* bookmark;
  48   ASSERT_EQ(1U, bookmark_list->GetSize());
  49   ASSERT_TRUE(bookmark_list->GetDictionary(0, &bookmark));
  50   std::string bookmark_name = "Unnamed";
  51   ASSERT_TRUE(bookmark->GetString("name", &bookmark_name));
  52   ASSERT_EQ(std::string("Froogle"), bookmark_name);
  53   std::string bookmark_url;
  54   ASSERT_TRUE(bookmark->GetString("url", &bookmark_url));
  55   ASSERT_EQ(std::string("http://froogle.com"), bookmark_url);
  56 }
  57
  58 TEST(ValuesTest, List) {
  59   scoped_ptr<ListValue> mixed_list(new ListValue());
  60   mixed_list->Set(0, new FundamentalValue(true));
  61   mixed_list->Set(1, new FundamentalValue(42));
  62   mixed_list->Set(2, new FundamentalValue(88.8));
  63   mixed_list->Set(3, new StringValue("foo"));
  64   ASSERT_EQ(4u, mixed_list->GetSize());
  65
  66   Value *value = NULL;
  67   bool bool_value = false;
  68   int int_value = 0;
  69   double double_value = 0.0;
  70   std::string string_value;
  71
  72   ASSERT_FALSE(mixed_list->Get(4, &value));
  73
  74   ASSERT_FALSE(mixed_list->GetInteger(0, &int_value));
  75   ASSERT_EQ(0, int_value);
  76   ASSERT_FALSE(mixed_list->GetBoolean(1, &bool_value));
  77   ASSERT_FALSE(bool_value);
  78   ASSERT_FALSE(mixed_list->GetString(2, &string_value));
  79   ASSERT_EQ("", string_value);
  80   ASSERT_FALSE(mixed_list->GetInteger(2, &int_value));
  81   ASSERT_EQ(0, int_value);
  82   ASSERT_FALSE(mixed_list->GetBoolean(3, &bool_value));
  83   ASSERT_FALSE(bool_value);
  84
  85   ASSERT_TRUE(mixed_list->GetBoolean(0, &bool_value));
  86   ASSERT_TRUE(bool_value);
  87   ASSERT_TRUE(mixed_list->GetInteger(1, &int_value));
  88   ASSERT_EQ(42, int_value);
  89   // implicit conversion from Integer to Double should be possible.
  90   ASSERT_TRUE(mixed_list->GetDouble(1, &double_value));
  91   ASSERT_EQ(42, double_value);
  92   ASSERT_TRUE(mixed_list->GetDouble(2, &double_value));
  93   ASSERT_EQ(88.8, double_value);
  94   ASSERT_TRUE(mixed_list->GetString(3, &string_value));
  95   ASSERT_EQ("foo", string_value);
  96
  97   // Try searching in the mixed list.
  98   base::FundamentalValue sought_value(42);
  99   base::FundamentalValue not_found_value(false);
 100
 101   ASSERT_NE(mixed_list->end(), mixed_list->Find(sought_value));
 102   ASSERT_TRUE((*mixed_list->Find(sought_value))->GetAsInteger(&int_value));
 103   ASSERT_EQ(42, int_value);
 104   ASSERT_EQ(mixed_list->end(), mixed_list->Find(not_found_value));
 105 }
 106
 107 TEST(ValuesTest, BinaryValue) {
 108   // Default constructor creates a BinaryValue with a null buffer and size 0.
 109   scoped_ptr<BinaryValue> binary(new BinaryValue());
 110   ASSERT_TRUE(binary.get());
 111   ASSERT_EQ(NULL, binary->GetBuffer());
 112   ASSERT_EQ(0U, binary->GetSize());
 113
 114   // Test the common case of a non-empty buffer
 115   char* buffer = new char[15];
 116   binary.reset(new BinaryValue(scoped_ptr<char[]>(buffer), 15));
 117   ASSERT_TRUE(binary.get());
 118   ASSERT_TRUE(binary->GetBuffer());
 119   ASSERT_EQ(buffer, binary->GetBuffer());
 120   ASSERT_EQ(15U, binary->GetSize());
 121
 122   char stack_buffer[42];
 123   memset(stack_buffer, '!', 42);
 124   binary.reset(BinaryValue::CreateWithCopiedBuffer(stack_buffer, 42));
 125   ASSERT_TRUE(binary.get());
 126   ASSERT_TRUE(binary->GetBuffer());
 127   ASSERT_NE(stack_buffer, binary->GetBuffer());
 128   ASSERT_EQ(42U, binary->GetSize());
 129   ASSERT_EQ(0, memcmp(stack_buffer, binary->GetBuffer(), binary->GetSize()));
 130 }
 131
 132 TEST(ValuesTest, StringValue) {
 133   // Test overloaded CreateStringValue.
 134   scoped_ptr<Value> narrow_value(new StringValue("narrow"));
 135   ASSERT_TRUE(narrow_value.get());
 136   ASSERT_TRUE(narrow_value->IsType(Value::TYPE_STRING));
 137   scoped_ptr<Value> utf16_value(new StringValue(ASCIIToUTF16("utf16")));
 138   ASSERT_TRUE(utf16_value.get());
 139   ASSERT_TRUE(utf16_value->IsType(Value::TYPE_STRING));
 140
 141   // Test overloaded GetString.
 142   std::string narrow = "http://google.com";
 143   string16 utf16 = ASCIIToUTF16("http://google.com");
 144   ASSERT_TRUE(narrow_value->GetAsString(&narrow));
 145   ASSERT_TRUE(narrow_value->GetAsString(&utf16));
 146   ASSERT_EQ(std::string("narrow"), narrow);
 147   ASSERT_EQ(ASCIIToUTF16("narrow"), utf16);
 148
 149   ASSERT_TRUE(utf16_value->GetAsString(&narrow));
 150   ASSERT_TRUE(utf16_value->GetAsString(&utf16));
 151   ASSERT_EQ(std::string("utf16"), narrow);
 152   ASSERT_EQ(ASCIIToUTF16("utf16"), utf16);
 153 }
 154
 155 // This is a Value object that allows us to tell if it's been
 156 // properly deleted by modifying the value of external flag on destruction.
 157 class DeletionTestValue : public Value {
 158  public:
 159   explicit DeletionTestValue(bool* deletion_flag) : Value(TYPE_NULL) {
 160     Init(deletion_flag);  // Separate function so that we can use ASSERT_*
 161   }
 162
 163   void Init(bool* deletion_flag) {
 164     ASSERT_TRUE(deletion_flag);
 165     deletion_flag_ = deletion_flag;
 166     *deletion_flag_ = false;
 167   }
 168
 169   virtual ~DeletionTestValue() {
 170     *deletion_flag_ = true;
 171   }
 172
 173  private:
 174   bool* deletion_flag_;
 175 };
 176
 177 TEST(ValuesTest, ListDeletion) {
 178   bool deletion_flag = true;
 179
 180   {
 181     ListValue list;
 182     list.Append(new DeletionTestValue(&deletion_flag));
 183     EXPECT_FALSE(deletion_flag);
 184   }
 185   EXPECT_TRUE(deletion_flag);
 186
 187   {
 188     ListValue list;
 189     list.Append(new DeletionTestValue(&deletion_flag));
 190     EXPECT_FALSE(deletion_flag);
 191     list.Clear();
 192     EXPECT_TRUE(deletion_flag);
 193   }
 194
 195   {
 196     ListValue list;
 197     list.Append(new DeletionTestValue(&deletion_flag));
 198     EXPECT_FALSE(deletion_flag);
 199     EXPECT_TRUE(list.Set(0, Value::CreateNullValue()));
 200     EXPECT_TRUE(deletion_flag);
 201   }
 202 }
 203
 204 TEST(ValuesTest, ListRemoval) {
 205   bool deletion_flag = true;
 206   scoped_ptr<Value> removed_item;
 207
 208   {
 209     ListValue list;
 210     list.Append(new DeletionTestValue(&deletion_flag));
 211     EXPECT_FALSE(deletion_flag);
 212     EXPECT_EQ(1U, list.GetSize());
 213     EXPECT_FALSE(list.Remove(std::numeric_limits<size_t>::max(),
 214                              &removed_item));
 215     EXPECT_FALSE(list.Remove(1, &removed_item));
 216     EXPECT_TRUE(list.Remove(0, &removed_item));
 217     ASSERT_TRUE(removed_item);
 218     EXPECT_EQ(0U, list.GetSize());
 219   }
 220   EXPECT_FALSE(deletion_flag);
 221   removed_item.reset();
 222   EXPECT_TRUE(deletion_flag);
 223
 224   {
 225     ListValue list;
 226     list.Append(new DeletionTestValue(&deletion_flag));
 227     EXPECT_FALSE(deletion_flag);
 228     EXPECT_TRUE(list.Remove(0, NULL));
 229     EXPECT_TRUE(deletion_flag);
 230     EXPECT_EQ(0U, list.GetSize());
 231   }
 232
 233   {
 234     ListValue list;
 235     DeletionTestValue* value = new DeletionTestValue(&deletion_flag);
 236     list.Append(value);
 237     EXPECT_FALSE(deletion_flag);
 238     size_t index = 0;
 239     list.Remove(*value, &index);
 240     EXPECT_EQ(0U, index);
 241     EXPECT_TRUE(deletion_flag);
 242     EXPECT_EQ(0U, list.GetSize());
 243   }
 244 }
 245
 246 TEST(ValuesTest, DictionaryDeletion) {
 247   std::string key = "test";
 248   bool deletion_flag = true;
 249
 250   {
 251     DictionaryValue dict;
 252     dict.Set(key, new DeletionTestValue(&deletion_flag));
 253     EXPECT_FALSE(deletion_flag);
 254   }
 255   EXPECT_TRUE(deletion_flag);
 256
 257   {
 258     DictionaryValue dict;
 259     dict.Set(key, new DeletionTestValue(&deletion_flag));
 260     EXPECT_FALSE(deletion_flag);
 261     dict.Clear();
 262     EXPECT_TRUE(deletion_flag);
 263   }
 264
 265   {
 266     DictionaryValue dict;
 267     dict.Set(key, new DeletionTestValue(&deletion_flag));
 268     EXPECT_FALSE(deletion_flag);
 269     dict.Set(key, Value::CreateNullValue());
 270     EXPECT_TRUE(deletion_flag);
 271   }
 272 }
 273
 274 TEST(ValuesTest, DictionaryRemoval) {
 275   std::string key = "test";
 276   bool deletion_flag = true;
 277   scoped_ptr<Value> removed_item;
 278
 279   {
 280     DictionaryValue dict;
 281     dict.Set(key, new DeletionTestValue(&deletion_flag));
 282     EXPECT_FALSE(deletion_flag);
 283     EXPECT_TRUE(dict.HasKey(key));
 284     EXPECT_FALSE(dict.Remove("absent key", &removed_item));
 285     EXPECT_TRUE(dict.Remove(key, &removed_item));
 286     EXPECT_FALSE(dict.HasKey(key));
 287     ASSERT_TRUE(removed_item);
 288   }
 289   EXPECT_FALSE(deletion_flag);
 290   removed_item.reset();
 291   EXPECT_TRUE(deletion_flag);
 292
 293   {
 294     DictionaryValue dict;
 295     dict.Set(key, new DeletionTestValue(&deletion_flag));
 296     EXPECT_FALSE(deletion_flag);
 297     EXPECT_TRUE(dict.HasKey(key));
 298     EXPECT_TRUE(dict.Remove(key, NULL));
 299     EXPECT_TRUE(deletion_flag);
 300     EXPECT_FALSE(dict.HasKey(key));
 301   }
 302 }
 303
 304 TEST(ValuesTest, DictionaryWithoutPathExpansion) {
 305   DictionaryValue dict;
 306   dict.Set("this.is.expanded", Value::CreateNullValue());
 307   dict.SetWithoutPathExpansion("this.isnt.expanded", Value::CreateNullValue());
 308
 309   EXPECT_FALSE(dict.HasKey("this.is.expanded"));
 310   EXPECT_TRUE(dict.HasKey("this"));
 311   Value* value1;
 312   EXPECT_TRUE(dict.Get("this", &value1));
 313   DictionaryValue* value2;
 314   ASSERT_TRUE(dict.GetDictionaryWithoutPathExpansion("this", &value2));
 315   EXPECT_EQ(value1, value2);
 316   EXPECT_EQ(1U, value2->size());
 317
 318   EXPECT_TRUE(dict.HasKey("this.isnt.expanded"));
 319   Value* value3;
 320   EXPECT_FALSE(dict.Get("this.isnt.expanded", &value3));
 321   Value* value4;
 322   ASSERT_TRUE(dict.GetWithoutPathExpansion("this.isnt.expanded", &value4));
 323   EXPECT_EQ(Value::TYPE_NULL, value4->GetType());
 324 }
 325
 326 TEST(ValuesTest, DictionaryRemovePath) {
 327   DictionaryValue dict;
 328   dict.Set("a.long.way.down", Value::CreateIntegerValue(1));
 329   dict.Set("a.long.key.path", Value::CreateBooleanValue(true));
 330
 331   scoped_ptr<Value> removed_item;
 332   EXPECT_TRUE(dict.RemovePath("a.long.way.down", &removed_item));
 333   ASSERT_TRUE(removed_item);
 334   EXPECT_TRUE(removed_item->IsType(base::Value::TYPE_INTEGER));
 335   EXPECT_FALSE(dict.HasKey("a.long.way.down"));
 336   EXPECT_FALSE(dict.HasKey("a.long.way"));
 337   EXPECT_TRUE(dict.Get("a.long.key.path", NULL));
 338
 339   removed_item.reset();
 340   EXPECT_FALSE(dict.RemovePath("a.long.way.down", &removed_item));
 341   EXPECT_FALSE(removed_item);
 342   EXPECT_TRUE(dict.Get("a.long.key.path", NULL));
 343
 344   removed_item.reset();
 345   EXPECT_TRUE(dict.RemovePath("a.long.key.path", &removed_item));
 346   ASSERT_TRUE(removed_item);
 347   EXPECT_TRUE(removed_item->IsType(base::Value::TYPE_BOOLEAN));
 348   EXPECT_TRUE(dict.empty());
 349 }
 350
 351 TEST(ValuesTest, DeepCopy) {
 352   DictionaryValue original_dict;
 353   Value* original_null = Value::CreateNullValue();
 354   original_dict.Set("null", original_null);
 355   FundamentalValue* original_bool = new FundamentalValue(true);
 356   original_dict.Set("bool", original_bool);
 357   FundamentalValue* original_int = new FundamentalValue(42);
 358   original_dict.Set("int", original_int);
 359   FundamentalValue* original_double = new FundamentalValue(3.14);
 360   original_dict.Set("double", original_double);
 361   StringValue* original_string = new StringValue("hello");
 362   original_dict.Set("string", original_string);
 363   StringValue* original_string16 = new StringValue(ASCIIToUTF16("hello16"));
 364   original_dict.Set("string16", original_string16);
 365
 366   scoped_ptr<char[]> original_buffer(new char[42]);
 367   memset(original_buffer.get(), '!', 42);
 368   BinaryValue* original_binary = new BinaryValue(original_buffer.Pass(), 42);
 369   original_dict.Set("binary", original_binary);
 370
 371   ListValue* original_list = new ListValue();
 372   FundamentalValue* original_list_element_0 = new FundamentalValue(0);
 373   original_list->Append(original_list_element_0);
 374   FundamentalValue* original_list_element_1 = new FundamentalValue(1);
 375   original_list->Append(original_list_element_1);
 376   original_dict.Set("list", original_list);
 377
 378   DictionaryValue* original_nested_dictionary = new DictionaryValue();
 379   original_nested_dictionary->Set("key", new StringValue("value"));
 380   original_dict.Set("dictionary", original_nested_dictionary);
 381
 382   scoped_ptr<DictionaryValue> copy_dict(original_dict.DeepCopy());
 383   ASSERT_TRUE(copy_dict.get());
 384   ASSERT_NE(copy_dict.get(), &original_dict);
 385
 386   Value* copy_null = NULL;
 387   ASSERT_TRUE(copy_dict->Get("null", &copy_null));
 388   ASSERT_TRUE(copy_null);
 389   ASSERT_NE(copy_null, original_null);
 390   ASSERT_TRUE(copy_null->IsType(Value::TYPE_NULL));
 391
 392   Value* copy_bool = NULL;
 393   ASSERT_TRUE(copy_dict->Get("bool", &copy_bool));
 394   ASSERT_TRUE(copy_bool);
 395   ASSERT_NE(copy_bool, original_bool);
 396   ASSERT_TRUE(copy_bool->IsType(Value::TYPE_BOOLEAN));
 397   bool copy_bool_value = false;
 398   ASSERT_TRUE(copy_bool->GetAsBoolean(&copy_bool_value));
 399   ASSERT_TRUE(copy_bool_value);
 400
 401   Value* copy_int = NULL;
 402   ASSERT_TRUE(copy_dict->Get("int", &copy_int));
 403   ASSERT_TRUE(copy_int);
 404   ASSERT_NE(copy_int, original_int);
 405   ASSERT_TRUE(copy_int->IsType(Value::TYPE_INTEGER));
 406   int copy_int_value = 0;
 407   ASSERT_TRUE(copy_int->GetAsInteger(&copy_int_value));
 408   ASSERT_EQ(42, copy_int_value);
 409
 410   Value* copy_double = NULL;
 411   ASSERT_TRUE(copy_dict->Get("double", &copy_double));
 412   ASSERT_TRUE(copy_double);
 413   ASSERT_NE(copy_double, original_double);
 414   ASSERT_TRUE(copy_double->IsType(Value::TYPE_DOUBLE));
 415   double copy_double_value = 0;
 416   ASSERT_TRUE(copy_double->GetAsDouble(&copy_double_value));
 417   ASSERT_EQ(3.14, copy_double_value);
 418
 419   Value* copy_string = NULL;
 420   ASSERT_TRUE(copy_dict->Get("string", &copy_string));
 421   ASSERT_TRUE(copy_string);
 422   ASSERT_NE(copy_string, original_string);
 423   ASSERT_TRUE(copy_string->IsType(Value::TYPE_STRING));
 424   std::string copy_string_value;
 425   string16 copy_string16_value;
 426   ASSERT_TRUE(copy_string->GetAsString(&copy_string_value));
 427   ASSERT_TRUE(copy_string->GetAsString(&copy_string16_value));
 428   ASSERT_EQ(std::string("hello"), copy_string_value);
 429   ASSERT_EQ(ASCIIToUTF16("hello"), copy_string16_value);
 430
 431   Value* copy_string16 = NULL;
 432   ASSERT_TRUE(copy_dict->Get("string16", &copy_string16));
 433   ASSERT_TRUE(copy_string16);
 434   ASSERT_NE(copy_string16, original_string16);
 435   ASSERT_TRUE(copy_string16->IsType(Value::TYPE_STRING));
 436   ASSERT_TRUE(copy_string16->GetAsString(&copy_string_value));
 437   ASSERT_TRUE(copy_string16->GetAsString(&copy_string16_value));
 438   ASSERT_EQ(std::string("hello16"), copy_string_value);
 439   ASSERT_EQ(ASCIIToUTF16("hello16"), copy_string16_value);
 440
 441   Value* copy_binary = NULL;
 442   ASSERT_TRUE(copy_dict->Get("binary", &copy_binary));
 443   ASSERT_TRUE(copy_binary);
 444   ASSERT_NE(copy_binary, original_binary);
 445   ASSERT_TRUE(copy_binary->IsType(Value::TYPE_BINARY));
 446   ASSERT_NE(original_binary->GetBuffer(),
 447     static_cast<BinaryValue*>(copy_binary)->GetBuffer());
 448   ASSERT_EQ(original_binary->GetSize(),
 449     static_cast<BinaryValue*>(copy_binary)->GetSize());
 450   ASSERT_EQ(0, memcmp(original_binary->GetBuffer(),
 451                static_cast<BinaryValue*>(copy_binary)->GetBuffer(),
 452                original_binary->GetSize()));
 453
 454   Value* copy_value = NULL;
 455   ASSERT_TRUE(copy_dict->Get("list", &copy_value));
 456   ASSERT_TRUE(copy_value);
 457   ASSERT_NE(copy_value, original_list);
 458   ASSERT_TRUE(copy_value->IsType(Value::TYPE_LIST));
 459   ListValue* copy_list = NULL;
 460   ASSERT_TRUE(copy_value->GetAsList(&copy_list));
 461   ASSERT_TRUE(copy_list);
 462   ASSERT_EQ(2U, copy_list->GetSize());
 463
 464   Value* copy_list_element_0;
 465   ASSERT_TRUE(copy_list->Get(0, &copy_list_element_0));
 466   ASSERT_TRUE(copy_list_element_0);
 467   ASSERT_NE(copy_list_element_0, original_list_element_0);
 468   int copy_list_element_0_value;
 469   ASSERT_TRUE(copy_list_element_0->GetAsInteger(&copy_list_element_0_value));
 470   ASSERT_EQ(0, copy_list_element_0_value);
 471
 472   Value* copy_list_element_1;
 473   ASSERT_TRUE(copy_list->Get(1, &copy_list_element_1));
 474   ASSERT_TRUE(copy_list_element_1);
 475   ASSERT_NE(copy_list_element_1, original_list_element_1);
 476   int copy_list_element_1_value;
 477   ASSERT_TRUE(copy_list_element_1->GetAsInteger(&copy_list_element_1_value));
 478   ASSERT_EQ(1, copy_list_element_1_value);
 479
 480   copy_value = NULL;
 481   ASSERT_TRUE(copy_dict->Get("dictionary", &copy_value));
 482   ASSERT_TRUE(copy_value);
 483   ASSERT_NE(copy_value, original_nested_dictionary);
 484   ASSERT_TRUE(copy_value->IsType(Value::TYPE_DICTIONARY));
 485   DictionaryValue* copy_nested_dictionary = NULL;
 486   ASSERT_TRUE(copy_value->GetAsDictionary(&copy_nested_dictionary));
 487   ASSERT_TRUE(copy_nested_dictionary);
 488   EXPECT_TRUE(copy_nested_dictionary->HasKey("key"));
 489 }
 490
 491 TEST(ValuesTest, Equals) {
 492   Value* null1 = Value::CreateNullValue();
 493   Value* null2 = Value::CreateNullValue();
 494   EXPECT_NE(null1, null2);
 495   EXPECT_TRUE(null1->Equals(null2));
 496
 497   Value* boolean = new FundamentalValue(false);
 498   EXPECT_FALSE(null1->Equals(boolean));
 499   delete null1;
 500   delete null2;
 501   delete boolean;
 502
 503   DictionaryValue dv;
 504   dv.SetBoolean("a", false);
 505   dv.SetInteger("b", 2);
 506   dv.SetDouble("c", 2.5);
 507   dv.SetString("d1", "string");
 508   dv.SetString("d2", ASCIIToUTF16("http://google.com"));
 509   dv.Set("e", Value::CreateNullValue());
 510
 511   scoped_ptr<DictionaryValue> copy;
 512   copy.reset(dv.DeepCopy());
 513   EXPECT_TRUE(dv.Equals(copy.get()));
 514
 515   ListValue* list = new ListValue;
 516   list->Append(Value::CreateNullValue());
 517   list->Append(new DictionaryValue);
 518   dv.Set("f", list);
 519
 520   EXPECT_FALSE(dv.Equals(copy.get()));
 521   copy->Set("f", list->DeepCopy());
 522   EXPECT_TRUE(dv.Equals(copy.get()));
 523
 524   list->Append(new FundamentalValue(true));
 525   EXPECT_FALSE(dv.Equals(copy.get()));
 526
 527   // Check if Equals detects differences in only the keys.
 528   copy.reset(dv.DeepCopy());
 529   EXPECT_TRUE(dv.Equals(copy.get()));
 530   copy->Remove("a", NULL);
 531   copy->SetBoolean("aa", false);
 532   EXPECT_FALSE(dv.Equals(copy.get()));
 533 }
 534
 535 TEST(ValuesTest, StaticEquals) {
 536   scoped_ptr<Value> null1(Value::CreateNullValue());
 537   scoped_ptr<Value> null2(Value::CreateNullValue());
 538   EXPECT_TRUE(Value::Equals(null1.get(), null2.get()));
 539   EXPECT_TRUE(Value::Equals(NULL, NULL));
 540
 541   scoped_ptr<Value> i42(new FundamentalValue(42));
 542   scoped_ptr<Value> j42(new FundamentalValue(42));
 543   scoped_ptr<Value> i17(new FundamentalValue(17));
 544   EXPECT_TRUE(Value::Equals(i42.get(), i42.get()));
 545   EXPECT_TRUE(Value::Equals(j42.get(), i42.get()));
 546   EXPECT_TRUE(Value::Equals(i42.get(), j42.get()));
 547   EXPECT_FALSE(Value::Equals(i42.get(), i17.get()));
 548   EXPECT_FALSE(Value::Equals(i42.get(), NULL));
 549   EXPECT_FALSE(Value::Equals(NULL, i42.get()));
 550
 551   // NULL and Value::CreateNullValue() are intentionally different: We need
 552   // support for NULL as a return value for "undefined" without caring for
 553   // ownership of the pointer.
 554   EXPECT_FALSE(Value::Equals(null1.get(), NULL));
 555   EXPECT_FALSE(Value::Equals(NULL, null1.get()));
 556 }
 557
 558 TEST(ValuesTest, DeepCopyCovariantReturnTypes) {
 559   DictionaryValue original_dict;
 560   Value* original_null = Value::CreateNullValue();
 561   original_dict.Set("null", original_null);
 562   FundamentalValue* original_bool = new FundamentalValue(true);
 563   original_dict.Set("bool", original_bool);
 564   FundamentalValue* original_int = new FundamentalValue(42);
 565   original_dict.Set("int", original_int);
 566   FundamentalValue* original_double = new FundamentalValue(3.14);
 567   original_dict.Set("double", original_double);
 568   StringValue* original_string = new StringValue("hello");
 569   original_dict.Set("string", original_string);
 570   StringValue* original_string16 = new StringValue(ASCIIToUTF16("hello16"));
 571   original_dict.Set("string16", original_string16);
 572
 573   scoped_ptr<char[]> original_buffer(new char[42]);
 574   memset(original_buffer.get(), '!', 42);
 575   BinaryValue* original_binary = new BinaryValue(original_buffer.Pass(), 42);
 576   original_dict.Set("binary", original_binary);
 577
 578   ListValue* original_list = new ListValue();
 579   FundamentalValue* original_list_element_0 = new FundamentalValue(0);
 580   original_list->Append(original_list_element_0);
 581   FundamentalValue* original_list_element_1 = new FundamentalValue(1);
 582   original_list->Append(original_list_element_1);
 583   original_dict.Set("list", original_list);
 584
 585   Value* original_dict_value = &original_dict;
 586   Value* original_bool_value = original_bool;
 587   Value* original_int_value = original_int;
 588   Value* original_double_value = original_double;
 589   Value* original_string_value = original_string;
 590   Value* original_string16_value = original_string16;
 591   Value* original_binary_value = original_binary;
 592   Value* original_list_value = original_list;
 593
 594   scoped_ptr<Value> copy_dict_value(original_dict_value->DeepCopy());
 595   scoped_ptr<Value> copy_bool_value(original_bool_value->DeepCopy());
 596   scoped_ptr<Value> copy_int_value(original_int_value->DeepCopy());
 597   scoped_ptr<Value> copy_double_value(original_double_value->DeepCopy());
 598   scoped_ptr<Value> copy_string_value(original_string_value->DeepCopy());
 599   scoped_ptr<Value> copy_string16_value(original_string16_value->DeepCopy());
 600   scoped_ptr<Value> copy_binary_value(original_binary_value->DeepCopy());
 601   scoped_ptr<Value> copy_list_value(original_list_value->DeepCopy());
 602
 603   EXPECT_TRUE(original_dict_value->Equals(copy_dict_value.get()));
 604   EXPECT_TRUE(original_bool_value->Equals(copy_bool_value.get()));
 605   EXPECT_TRUE(original_int_value->Equals(copy_int_value.get()));
 606   EXPECT_TRUE(original_double_value->Equals(copy_double_value.get()));
 607   EXPECT_TRUE(original_string_value->Equals(copy_string_value.get()));
 608   EXPECT_TRUE(original_string16_value->Equals(copy_string16_value.get()));
 609   EXPECT_TRUE(original_binary_value->Equals(copy_binary_value.get()));
 610   EXPECT_TRUE(original_list_value->Equals(copy_list_value.get()));
 611 }
 612
 613 TEST(ValuesTest, RemoveEmptyChildren) {
 614   scoped_ptr<DictionaryValue> root(new DictionaryValue);
 615   // Remove empty lists and dictionaries.
 616   root->Set("empty_dict", new DictionaryValue);
 617   root->Set("empty_list", new ListValue);
 618   root->SetWithoutPathExpansion("a.b.c.d.e", new DictionaryValue);
 619   root.reset(root->DeepCopyWithoutEmptyChildren());
 620   EXPECT_TRUE(root->empty());
 621
 622   // Make sure we don't prune too much.
 623   root->SetBoolean("bool", true);
 624   root->Set("empty_dict", new DictionaryValue);
 625   root->SetString("empty_string", std::string());
 626   root.reset(root->DeepCopyWithoutEmptyChildren());
 627   EXPECT_EQ(2U, root->size());
 628
 629   // Should do nothing.
 630   root.reset(root->DeepCopyWithoutEmptyChildren());
 631   EXPECT_EQ(2U, root->size());
 632
 633   // Nested test cases.  These should all reduce back to the bool and string
 634   // set above.
 635   {
 636     root->Set("a.b.c.d.e", new DictionaryValue);
 637     root.reset(root->DeepCopyWithoutEmptyChildren());
 638     EXPECT_EQ(2U, root->size());
 639   }
 640   {
 641     DictionaryValue* inner = new DictionaryValue;
 642     root->Set("dict_with_emtpy_children", inner);
 643     inner->Set("empty_dict", new DictionaryValue);
 644     inner->Set("empty_list", new ListValue);
 645     root.reset(root->DeepCopyWithoutEmptyChildren());
 646     EXPECT_EQ(2U, root->size());
 647   }
 648   {
 649     ListValue* inner = new ListValue;
 650     root->Set("list_with_empty_children", inner);
 651     inner->Append(new DictionaryValue);
 652     inner->Append(new ListValue);
 653     root.reset(root->DeepCopyWithoutEmptyChildren());
 654     EXPECT_EQ(2U, root->size());
 655   }
 656
 657   // Nested with siblings.
 658   {
 659     ListValue* inner = new ListValue;
 660     root->Set("list_with_empty_children", inner);
 661     inner->Append(new DictionaryValue);
 662     inner->Append(new ListValue);
 663     DictionaryValue* inner2 = new DictionaryValue;
 664     root->Set("dict_with_empty_children", inner2);
 665     inner2->Set("empty_dict", new DictionaryValue);
 666     inner2->Set("empty_list", new ListValue);
 667     root.reset(root->DeepCopyWithoutEmptyChildren());
 668     EXPECT_EQ(2U, root->size());
 669   }
 670
 671   // Make sure nested values don't get pruned.
 672   {
 673     ListValue* inner = new ListValue;
 674     root->Set("list_with_empty_children", inner);
 675     ListValue* inner2 = new ListValue;
 676     inner->Append(new DictionaryValue);
 677     inner->Append(inner2);
 678     inner2->Append(new StringValue("hello"));
 679     root.reset(root->DeepCopyWithoutEmptyChildren());
 680     EXPECT_EQ(3U, root->size());
 681     EXPECT_TRUE(root->GetList("list_with_empty_children", &inner));
 682     EXPECT_EQ(1U, inner->GetSize());  // Dictionary was pruned.
 683     EXPECT_TRUE(inner->GetList(0, &inner2));
 684     EXPECT_EQ(1U, inner2->GetSize());
 685   }
 686 }
 687
 688 TEST(ValuesTest, MergeDictionary) {
 689   scoped_ptr<DictionaryValue> base(new DictionaryValue);
 690   base->SetString("base_key", "base_key_value_base");
 691   base->SetString("collide_key", "collide_key_value_base");
 692   DictionaryValue* base_sub_dict = new DictionaryValue;
 693   base_sub_dict->SetString("sub_base_key", "sub_base_key_value_base");
 694   base_sub_dict->SetString("sub_collide_key", "sub_collide_key_value_base");
 695   base->Set("sub_dict_key", base_sub_dict);
 696
 697   scoped_ptr<DictionaryValue> merge(new DictionaryValue);
 698   merge->SetString("merge_key", "merge_key_value_merge");
 699   merge->SetString("collide_key", "collide_key_value_merge");
 700   DictionaryValue* merge_sub_dict = new DictionaryValue;
 701   merge_sub_dict->SetString("sub_merge_key", "sub_merge_key_value_merge");
 702   merge_sub_dict->SetString("sub_collide_key", "sub_collide_key_value_merge");
 703   merge->Set("sub_dict_key", merge_sub_dict);
 704
 705   base->MergeDictionary(merge.get());
 706
 707   EXPECT_EQ(4U, base->size());
 708   std::string base_key_value;
 709   EXPECT_TRUE(base->GetString("base_key", &base_key_value));
 710   EXPECT_EQ("base_key_value_base", base_key_value); // Base value preserved.
 711   std::string collide_key_value;
 712   EXPECT_TRUE(base->GetString("collide_key", &collide_key_value));
 713   EXPECT_EQ("collide_key_value_merge", collide_key_value); // Replaced.
 714   std::string merge_key_value;
 715   EXPECT_TRUE(base->GetString("merge_key", &merge_key_value));
 716   EXPECT_EQ("merge_key_value_merge", merge_key_value); // Merged in.
 717
 718   DictionaryValue* res_sub_dict;
 719   EXPECT_TRUE(base->GetDictionary("sub_dict_key", &res_sub_dict));
 720   EXPECT_EQ(3U, res_sub_dict->size());
 721   std::string sub_base_key_value;
 722   EXPECT_TRUE(res_sub_dict->GetString("sub_base_key", &sub_base_key_value));
 723   EXPECT_EQ("sub_base_key_value_base", sub_base_key_value); // Preserved.
 724   std::string sub_collide_key_value;
 725   EXPECT_TRUE(res_sub_dict->GetString("sub_collide_key",
 726                                       &sub_collide_key_value));
 727   EXPECT_EQ("sub_collide_key_value_merge", sub_collide_key_value); // Replaced.
 728   std::string sub_merge_key_value;
 729   EXPECT_TRUE(res_sub_dict->GetString("sub_merge_key", &sub_merge_key_value));
 730   EXPECT_EQ("sub_merge_key_value_merge", sub_merge_key_value); // Merged in.
 731 }
 732
 733 TEST(ValuesTest, MergeDictionaryDeepCopy) {
 734   DictionaryValue* child = new DictionaryValue;
 735   child->SetString("test", "value");
 736   EXPECT_EQ(1U, child->size());
 737
 738   std::string value;
 739   EXPECT_TRUE(child->GetString("test", &value));
 740   EXPECT_EQ("value", value);
 741
 742   scoped_ptr<DictionaryValue> base(new DictionaryValue);
 743   base->Set("dict", child);
 744   EXPECT_EQ(1U, base->size());
 745
 746   DictionaryValue* ptr;
 747   EXPECT_TRUE(base->GetDictionary("dict", &ptr));
 748   EXPECT_EQ(child, ptr);
 749
 750   scoped_ptr<DictionaryValue> merged(new DictionaryValue);
 751   merged->MergeDictionary(base.get());
 752   EXPECT_EQ(1U, merged->size());
 753   EXPECT_TRUE(merged->GetDictionary("dict", &ptr));
 754   EXPECT_NE(child, ptr);
 755   EXPECT_TRUE(ptr->GetString("test", &value));
 756   EXPECT_EQ("value", value);
 757
 758   child->SetString("test", "overwrite");
 759   base.reset();
 760   EXPECT_TRUE(ptr->GetString("test", &value));
 761   EXPECT_EQ("value", value);
 762 }
 763
 764 TEST(ValuesTest, DictionaryIterator) {
 765   DictionaryValue dict;
 766   for (DictionaryValue::Iterator it(dict); !it.IsAtEnd(); it.Advance()) {
 767     ADD_FAILURE();
 768   }
 769
 770   StringValue value1("value1");
 771   dict.Set("key1", value1.DeepCopy());
 772   bool seen1 = false;
 773   for (DictionaryValue::Iterator it(dict); !it.IsAtEnd(); it.Advance()) {
 774     EXPECT_FALSE(seen1);
 775     EXPECT_EQ("key1", it.key());
 776     EXPECT_TRUE(value1.Equals(&it.value()));
 777     seen1 = true;
 778   }
 779   EXPECT_TRUE(seen1);
 780
 781   StringValue value2("value2");
 782   dict.Set("key2", value2.DeepCopy());
 783   bool seen2 = seen1 = false;
 784   for (DictionaryValue::Iterator it(dict); !it.IsAtEnd(); it.Advance()) {
 785     if (it.key() == "key1") {
 786       EXPECT_FALSE(seen1);
 787       EXPECT_TRUE(value1.Equals(&it.value()));
 788       seen1 = true;
 789     } else if (it.key() == "key2") {
 790       EXPECT_FALSE(seen2);
 791       EXPECT_TRUE(value2.Equals(&it.value()));
 792       seen2 = true;
 793     } else {
 794       ADD_FAILURE();
 795     }
 796   }
 797   EXPECT_TRUE(seen1);
 798   EXPECT_TRUE(seen2);
 799 }
 800
 801 }  // namespace base