src/dex_file_test.cc - platform/art - Git at Google

 /*
  * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include "dex_file.h"

 #include "UniquePtr.h"
 #include "common_test.h"

 namespace art {

 class DexFileTest : public CommonTest {};

 TEST_F(DexFileTest, Open) {
   const DexFile* dex(OpenTestDexFile("Nested"));
   ASSERT_TRUE(dex != NULL);
 }

 // Although this is the same content logically as the Nested test dex,
 // the DexFileHeader test is sensitive to subtle changes in the
 // contents due to the checksum etc, so we embed the exact input here.
 //
 // class Nested {
 //     class Inner {
 //     }
 // }
 static const char kRawDex[] =
   "ZGV4CjAzNQAQedgAe7gM1B/WHsWJ6L7lGAISGC7yjD2IAwAAcAAAAHhWNBIAAAAAAAAAAMQCAAAP"
   "AAAAcAAAAAcAAACsAAAAAgAAAMgAAAABAAAA4AAAAAMAAADoAAAAAgAAAAABAABIAgAAQAEAAK4B"
   "AAC2AQAAvQEAAM0BAADXAQAA+wEAABsCAAA+AgAAUgIAAF8CAABiAgAAZgIAAHMCAAB5AgAAgQIA"
   "AAIAAAADAAAABAAAAAUAAAAGAAAABwAAAAkAAAAJAAAABgAAAAAAAAAKAAAABgAAAKgBAAAAAAEA"
   "DQAAAAAAAQAAAAAAAQAAAAAAAAAFAAAAAAAAAAAAAAAAAAAABQAAAAAAAAAIAAAAiAEAAKsCAAAA"
   "AAAAAQAAAAAAAAAFAAAAAAAAAAgAAACYAQAAuAIAAAAAAAACAAAAlAIAAJoCAAABAAAAowIAAAIA"
   "AgABAAAAiAIAAAYAAABbAQAAcBACAAAADgABAAEAAQAAAI4CAAAEAAAAcBACAAAADgBAAQAAAAAA"
   "AAAAAAAAAAAATAEAAAAAAAAAAAAAAAAAAAEAAAABAAY8aW5pdD4ABUlubmVyAA5MTmVzdGVkJElu"
   "bmVyOwAITE5lc3RlZDsAIkxkYWx2aWsvYW5ub3RhdGlvbi9FbmNsb3NpbmdDbGFzczsAHkxkYWx2"
   "aWsvYW5ub3RhdGlvbi9Jbm5lckNsYXNzOwAhTGRhbHZpay9hbm5vdGF0aW9uL01lbWJlckNsYXNz"
   "ZXM7ABJMamF2YS9sYW5nL09iamVjdDsAC05lc3RlZC5qYXZhAAFWAAJWTAALYWNjZXNzRmxhZ3MA"
   "BG5hbWUABnRoaXMkMAAFdmFsdWUAAgEABw4AAQAHDjwAAgIBDhgBAgMCCwQADBcBAgQBDhwBGAAA"
   "AQEAAJAgAICABNQCAAABAAGAgATwAgAAEAAAAAAAAAABAAAAAAAAAAEAAAAPAAAAcAAAAAIAAAAH"
   "AAAArAAAAAMAAAACAAAAyAAAAAQAAAABAAAA4AAAAAUAAAADAAAA6AAAAAYAAAACAAAAAAEAAAMQ"
   "AAACAAAAQAEAAAEgAAACAAAAVAEAAAYgAAACAAAAiAEAAAEQAAABAAAAqAEAAAIgAAAPAAAArgEA"
   "AAMgAAACAAAAiAIAAAQgAAADAAAAlAIAAAAgAAACAAAAqwIAAAAQAAABAAAAxAIAAA==";

 TEST_F(DexFileTest, Header) {
   ScratchFile tmp;
   UniquePtr<const DexFile> raw(OpenDexFileBase64(kRawDex, tmp.GetFilename()));
   ASSERT_TRUE(raw.get() != NULL);

   const DexFile::Header& header = raw->GetHeader();
   // TODO: header.magic_
   EXPECT_EQ(0x00d87910U, header.checksum_);
   // TODO: header.signature_
   EXPECT_EQ(904U, header.file_size_);
   EXPECT_EQ(112U, header.header_size_);
   EXPECT_EQ(0U, header.link_size_);
   EXPECT_EQ(0U, header.link_off_);
   EXPECT_EQ(15U, header.string_ids_size_);
   EXPECT_EQ(112U, header.string_ids_off_);
   EXPECT_EQ(7U, header.type_ids_size_);
   EXPECT_EQ(172U, header.type_ids_off_);
   EXPECT_EQ(2U, header.proto_ids_size_);
   EXPECT_EQ(200U, header.proto_ids_off_);
   EXPECT_EQ(1U, header.field_ids_size_);
   EXPECT_EQ(224U, header.field_ids_off_);
   EXPECT_EQ(3U, header.method_ids_size_);
   EXPECT_EQ(232U, header.method_ids_off_);
   EXPECT_EQ(2U, header.class_defs_size_);
   EXPECT_EQ(256U, header.class_defs_off_);
   EXPECT_EQ(584U, header.data_size_);
   EXPECT_EQ(320U, header.data_off_);

   EXPECT_EQ(header.checksum_, raw->GetLocationChecksum());
 }

 TEST_F(DexFileTest, GetLocationChecksum) {
   const DexFile* raw(OpenTestDexFile("Main"));
   EXPECT_NE(raw->GetHeader().checksum_, raw->GetLocationChecksum());
 }

 TEST_F(DexFileTest, GetChecksum) {
   uint32_t checksum;
   EXPECT_TRUE(DexFile::GetChecksum(GetLibCoreDexFileName(), checksum));
   EXPECT_EQ(java_lang_dex_file_->GetLocationChecksum(), checksum);
 }

 TEST_F(DexFileTest, ClassDefs) {
   const DexFile* raw(OpenTestDexFile("Nested"));
   ASSERT_TRUE(raw != NULL);
   EXPECT_EQ(2U, raw->NumClassDefs());

   const DexFile::ClassDef& c0 = raw->GetClassDef(0);
   EXPECT_STREQ("LNested$Inner;", raw->GetClassDescriptor(c0));

   const DexFile::ClassDef& c1 = raw->GetClassDef(1);
   EXPECT_STREQ("LNested;", raw->GetClassDescriptor(c1));
 }

 TEST_F(DexFileTest, CreateMethodSignature) {
   const DexFile* raw(OpenTestDexFile("CreateMethodSignature"));
   ASSERT_TRUE(raw != NULL);
   EXPECT_EQ(1U, raw->NumClassDefs());

   const DexFile::ClassDef& class_def = raw->GetClassDef(0);
   ASSERT_STREQ("LCreateMethodSignature;", raw->GetClassDescriptor(class_def));

   const byte* class_data = raw->GetClassData(class_def);
   ASSERT_TRUE(class_data != NULL);
   ClassDataItemIterator it(*raw, class_data);

   EXPECT_EQ(1u, it.NumDirectMethods());

   // Check the signature for the static initializer.
   {
     ASSERT_EQ(1U, it.NumDirectMethods());
     const DexFile::MethodId& method_id = raw->GetMethodId(it.GetMemberIndex());
     uint32_t proto_idx = method_id.proto_idx_;
     const char* name = raw->StringDataByIdx(method_id.name_idx_);
     ASSERT_STREQ("<init>", name);
     int32_t length;
     std::string signature(raw->CreateMethodSignature(proto_idx, &length));
     ASSERT_EQ("()V", signature);
   }

   // Check both virtual methods.
   ASSERT_EQ(2U, it.NumVirtualMethods());
   {
     it.Next();
     const DexFile::MethodId& method_id = raw->GetMethodId(it.GetMemberIndex());

     const char* name = raw->StringDataByIdx(method_id.name_idx_);
     ASSERT_STREQ("m1", name);

     uint32_t proto_idx = method_id.proto_idx_;
     int32_t length;
     std::string signature(raw->CreateMethodSignature(proto_idx, &length));
     ASSERT_EQ("(IDJLjava/lang/Object;)Ljava/lang/Float;", signature);
   }

   {
     it.Next();
     const DexFile::MethodId& method_id = raw->GetMethodId(it.GetMemberIndex());

     const char* name = raw->StringDataByIdx(method_id.name_idx_);
     ASSERT_STREQ("m2", name);

     uint32_t proto_idx = method_id.proto_idx_;
     int32_t length;
     std::string signature(raw->CreateMethodSignature(proto_idx, &length));
     ASSERT_EQ("(ZSC)LCreateMethodSignature;", signature);
   }
 }

 TEST_F(DexFileTest, FindStringId) {
   const DexFile* raw(OpenTestDexFile("CreateMethodSignature"));
   ASSERT_TRUE(raw != NULL);
   EXPECT_EQ(1U, raw->NumClassDefs());

   const char* strings[] = { "LCreateMethodSignature;", "Ljava/lang/Float;", "Ljava/lang/Object;",
       "D", "I", "J", NULL };
   for (size_t i = 0; strings[i] != NULL; i++) {
     const char* str = strings[i];
     const DexFile::StringId* str_id = raw->FindStringId(str);
     const char* dex_str = raw->GetStringData(*str_id);
     EXPECT_STREQ(dex_str, str);
   }
 }

 TEST_F(DexFileTest, FindTypeId) {
   for (size_t i = 0; i < java_lang_dex_file_->NumTypeIds(); i++) {
     const char* type_str = java_lang_dex_file_->StringByTypeIdx(i);
     const DexFile::StringId* type_str_id = java_lang_dex_file_->FindStringId(type_str);
     ASSERT_TRUE(type_str_id != NULL);
     uint32_t type_str_idx = java_lang_dex_file_->GetIndexForStringId(*type_str_id);
     const DexFile::TypeId* type_id = java_lang_dex_file_->FindTypeId(type_str_idx);
     ASSERT_TRUE(type_id != NULL);
     EXPECT_EQ(java_lang_dex_file_->GetIndexForTypeId(*type_id), i);
   }
 }

 TEST_F(DexFileTest, FindProtoId) {
   for (size_t i = 0; i < java_lang_dex_file_->NumProtoIds(); i++) {
     const DexFile::ProtoId& to_find = java_lang_dex_file_->GetProtoId(i);
     const DexFile::TypeList* to_find_tl = java_lang_dex_file_->GetProtoParameters(to_find);
     std::vector<uint16_t> to_find_types;
     if (to_find_tl != NULL) {
       for (size_t j = 0; j < to_find_tl->Size(); j++) {
         to_find_types.push_back(to_find_tl->GetTypeItem(j).type_idx_);
       }
     }
     const DexFile::ProtoId* found =
         java_lang_dex_file_->FindProtoId(to_find.return_type_idx_, to_find_types);
     ASSERT_TRUE(found != NULL);
     EXPECT_EQ(java_lang_dex_file_->GetIndexForProtoId(*found), i);
   }
 }

 TEST_F(DexFileTest, FindMethodId) {
   for (size_t i = 0; i < java_lang_dex_file_->NumMethodIds(); i++) {
     const DexFile::MethodId& to_find = java_lang_dex_file_->GetMethodId(i);
     const DexFile::TypeId& klass = java_lang_dex_file_->GetTypeId(to_find.class_idx_);
     const DexFile::StringId& name = java_lang_dex_file_->GetStringId(to_find.name_idx_);
     const DexFile::ProtoId& signature = java_lang_dex_file_->GetProtoId(to_find.proto_idx_);
     const DexFile::MethodId* found = java_lang_dex_file_->FindMethodId(klass, name, signature);
     int32_t length;
     ASSERT_TRUE(found != NULL) << "Didn't find method " << i << ": "
         << java_lang_dex_file_->StringByTypeIdx(to_find.class_idx_) << "."
         << java_lang_dex_file_->GetStringData(name)
         << java_lang_dex_file_->CreateMethodSignature(to_find.proto_idx_, &length);
     EXPECT_EQ(java_lang_dex_file_->GetIndexForMethodId(*found), i);
   }
 }

 TEST_F(DexFileTest, FindFieldId) {
   for (size_t i = 0; i < java_lang_dex_file_->NumFieldIds(); i++) {
     const DexFile::FieldId& to_find = java_lang_dex_file_->GetFieldId(i);
     const DexFile::TypeId& klass = java_lang_dex_file_->GetTypeId(to_find.class_idx_);
     const DexFile::StringId& name = java_lang_dex_file_->GetStringId(to_find.name_idx_);
     const DexFile::TypeId& type = java_lang_dex_file_->GetTypeId(to_find.type_idx_);
     const DexFile::FieldId* found = java_lang_dex_file_->FindFieldId(klass, name, type);
     ASSERT_TRUE(found != NULL) << "Didn't find field " << i << ": "
         << java_lang_dex_file_->StringByTypeIdx(to_find.type_idx_) << " "
         << java_lang_dex_file_->StringByTypeIdx(to_find.class_idx_) << "."
         << java_lang_dex_file_->GetStringData(name);
     EXPECT_EQ(java_lang_dex_file_->GetIndexForFieldId(*found), i);
   }
 }

 }  // namespace art
	/*
	* Copyright (C) 2011 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include "dex_file.h"

	#include "UniquePtr.h"
	#include "common_test.h"

	namespace art {

	class DexFileTest : public CommonTest {};

	TEST_F(DexFileTest, Open) {
	const DexFile* dex(OpenTestDexFile("Nested"));
	ASSERT_TRUE(dex != NULL);
	}

	// Although this is the same content logically as the Nested test dex,
	// the DexFileHeader test is sensitive to subtle changes in the
	// contents due to the checksum etc, so we embed the exact input here.
	//
	// class Nested {
	// class Inner {
	// }
	// }
	static const char kRawDex[] =
	"ZGV4CjAzNQAQedgAe7gM1B/WHsWJ6L7lGAISGC7yjD2IAwAAcAAAAHhWNBIAAAAAAAAAAMQCAAAP"
	"AAAAcAAAAAcAAACsAAAAAgAAAMgAAAABAAAA4AAAAAMAAADoAAAAAgAAAAABAABIAgAAQAEAAK4B"
	"AAC2AQAAvQEAAM0BAADXAQAA+wEAABsCAAA+AgAAUgIAAF8CAABiAgAAZgIAAHMCAAB5AgAAgQIA"
	"AAIAAAADAAAABAAAAAUAAAAGAAAABwAAAAkAAAAJAAAABgAAAAAAAAAKAAAABgAAAKgBAAAAAAEA"
	"DQAAAAAAAQAAAAAAAQAAAAAAAAAFAAAAAAAAAAAAAAAAAAAABQAAAAAAAAAIAAAAiAEAAKsCAAAA"
	"AAAAAQAAAAAAAAAFAAAAAAAAAAgAAACYAQAAuAIAAAAAAAACAAAAlAIAAJoCAAABAAAAowIAAAIA"
	"AgABAAAAiAIAAAYAAABbAQAAcBACAAAADgABAAEAAQAAAI4CAAAEAAAAcBACAAAADgBAAQAAAAAA"
	"AAAAAAAAAAAATAEAAAAAAAAAAAAAAAAAAAEAAAABAAY8aW5pdD4ABUlubmVyAA5MTmVzdGVkJElu"
	"bmVyOwAITE5lc3RlZDsAIkxkYWx2aWsvYW5ub3RhdGlvbi9FbmNsb3NpbmdDbGFzczsAHkxkYWx2"
	"aWsvYW5ub3RhdGlvbi9Jbm5lckNsYXNzOwAhTGRhbHZpay9hbm5vdGF0aW9uL01lbWJlckNsYXNz"
	"ZXM7ABJMamF2YS9sYW5nL09iamVjdDsAC05lc3RlZC5qYXZhAAFWAAJWTAALYWNjZXNzRmxhZ3MA"
	"BG5hbWUABnRoaXMkMAAFdmFsdWUAAgEABw4AAQAHDjwAAgIBDhgBAgMCCwQADBcBAgQBDhwBGAAA"
	"AQEAAJAgAICABNQCAAABAAGAgATwAgAAEAAAAAAAAAABAAAAAAAAAAEAAAAPAAAAcAAAAAIAAAAH"
	"AAAArAAAAAMAAAACAAAAyAAAAAQAAAABAAAA4AAAAAUAAAADAAAA6AAAAAYAAAACAAAAAAEAAAMQ"
	"AAACAAAAQAEAAAEgAAACAAAAVAEAAAYgAAACAAAAiAEAAAEQAAABAAAAqAEAAAIgAAAPAAAArgEA"
	"AAMgAAACAAAAiAIAAAQgAAADAAAAlAIAAAAgAAACAAAAqwIAAAAQAAABAAAAxAIAAA==";

	TEST_F(DexFileTest, Header) {
	ScratchFile tmp;
	UniquePtr<const DexFile> raw(OpenDexFileBase64(kRawDex, tmp.GetFilename()));
	ASSERT_TRUE(raw.get() != NULL);

	const DexFile::Header& header = raw->GetHeader();
	// TODO: header.magic_
	EXPECT_EQ(0x00d87910U, header.checksum_);
	// TODO: header.signature_
	EXPECT_EQ(904U, header.file_size_);
	EXPECT_EQ(112U, header.header_size_);
	EXPECT_EQ(0U, header.link_size_);
	EXPECT_EQ(0U, header.link_off_);
	EXPECT_EQ(15U, header.string_ids_size_);
	EXPECT_EQ(112U, header.string_ids_off_);
	EXPECT_EQ(7U, header.type_ids_size_);
	EXPECT_EQ(172U, header.type_ids_off_);
	EXPECT_EQ(2U, header.proto_ids_size_);
	EXPECT_EQ(200U, header.proto_ids_off_);
	EXPECT_EQ(1U, header.field_ids_size_);
	EXPECT_EQ(224U, header.field_ids_off_);
	EXPECT_EQ(3U, header.method_ids_size_);
	EXPECT_EQ(232U, header.method_ids_off_);
	EXPECT_EQ(2U, header.class_defs_size_);
	EXPECT_EQ(256U, header.class_defs_off_);
	EXPECT_EQ(584U, header.data_size_);
	EXPECT_EQ(320U, header.data_off_);

	EXPECT_EQ(header.checksum_, raw->GetLocationChecksum());
	}

	TEST_F(DexFileTest, GetLocationChecksum) {
	const DexFile* raw(OpenTestDexFile("Main"));
	EXPECT_NE(raw->GetHeader().checksum_, raw->GetLocationChecksum());
	}

	TEST_F(DexFileTest, GetChecksum) {
	uint32_t checksum;
	EXPECT_TRUE(DexFile::GetChecksum(GetLibCoreDexFileName(), checksum));
	EXPECT_EQ(java_lang_dex_file_->GetLocationChecksum(), checksum);
	}

	TEST_F(DexFileTest, ClassDefs) {
	const DexFile* raw(OpenTestDexFile("Nested"));
	ASSERT_TRUE(raw != NULL);
	EXPECT_EQ(2U, raw->NumClassDefs());

	const DexFile::ClassDef& c0 = raw->GetClassDef(0);
	EXPECT_STREQ("LNested$Inner;", raw->GetClassDescriptor(c0));

	const DexFile::ClassDef& c1 = raw->GetClassDef(1);
	EXPECT_STREQ("LNested;", raw->GetClassDescriptor(c1));
	}

	TEST_F(DexFileTest, CreateMethodSignature) {
	const DexFile* raw(OpenTestDexFile("CreateMethodSignature"));
	ASSERT_TRUE(raw != NULL);
	EXPECT_EQ(1U, raw->NumClassDefs());

	const DexFile::ClassDef& class_def = raw->GetClassDef(0);
	ASSERT_STREQ("LCreateMethodSignature;", raw->GetClassDescriptor(class_def));

	const byte* class_data = raw->GetClassData(class_def);
	ASSERT_TRUE(class_data != NULL);
	ClassDataItemIterator it(*raw, class_data);

	EXPECT_EQ(1u, it.NumDirectMethods());

	// Check the signature for the static initializer.
	{
	ASSERT_EQ(1U, it.NumDirectMethods());
	const DexFile::MethodId& method_id = raw->GetMethodId(it.GetMemberIndex());
	uint32_t proto_idx = method_id.proto_idx_;
	const char* name = raw->StringDataByIdx(method_id.name_idx_);
	ASSERT_STREQ("<init>", name);
	int32_t length;
	std::string signature(raw->CreateMethodSignature(proto_idx, &length));
	ASSERT_EQ("()V", signature);
	}

	// Check both virtual methods.
	ASSERT_EQ(2U, it.NumVirtualMethods());
	{
	it.Next();
	const DexFile::MethodId& method_id = raw->GetMethodId(it.GetMemberIndex());

	const char* name = raw->StringDataByIdx(method_id.name_idx_);
	ASSERT_STREQ("m1", name);

	uint32_t proto_idx = method_id.proto_idx_;
	int32_t length;
	std::string signature(raw->CreateMethodSignature(proto_idx, &length));
	ASSERT_EQ("(IDJLjava/lang/Object;)Ljava/lang/Float;", signature);
	}

	{
	it.Next();
	const DexFile::MethodId& method_id = raw->GetMethodId(it.GetMemberIndex());

	const char* name = raw->StringDataByIdx(method_id.name_idx_);
	ASSERT_STREQ("m2", name);

	uint32_t proto_idx = method_id.proto_idx_;
	int32_t length;
	std::string signature(raw->CreateMethodSignature(proto_idx, &length));
	ASSERT_EQ("(ZSC)LCreateMethodSignature;", signature);
	}
	}

	TEST_F(DexFileTest, FindStringId) {
	const DexFile* raw(OpenTestDexFile("CreateMethodSignature"));
	ASSERT_TRUE(raw != NULL);
	EXPECT_EQ(1U, raw->NumClassDefs());

	const char* strings[] = { "LCreateMethodSignature;", "Ljava/lang/Float;", "Ljava/lang/Object;",
	"D", "I", "J", NULL };
	for (size_t i = 0; strings[i] != NULL; i++) {
	const char* str = strings[i];
	const DexFile::StringId* str_id = raw->FindStringId(str);
	const char* dex_str = raw->GetStringData(*str_id);
	EXPECT_STREQ(dex_str, str);
	}
	}

	TEST_F(DexFileTest, FindTypeId) {
	for (size_t i = 0; i < java_lang_dex_file_->NumTypeIds(); i++) {
	const char* type_str = java_lang_dex_file_->StringByTypeIdx(i);
	const DexFile::StringId* type_str_id = java_lang_dex_file_->FindStringId(type_str);
	ASSERT_TRUE(type_str_id != NULL);
	uint32_t type_str_idx = java_lang_dex_file_->GetIndexForStringId(*type_str_id);
	const DexFile::TypeId* type_id = java_lang_dex_file_->FindTypeId(type_str_idx);
	ASSERT_TRUE(type_id != NULL);
	EXPECT_EQ(java_lang_dex_file_->GetIndexForTypeId(*type_id), i);
	}
	}

	TEST_F(DexFileTest, FindProtoId) {
	for (size_t i = 0; i < java_lang_dex_file_->NumProtoIds(); i++) {
	const DexFile::ProtoId& to_find = java_lang_dex_file_->GetProtoId(i);
	const DexFile::TypeList* to_find_tl = java_lang_dex_file_->GetProtoParameters(to_find);
	std::vector<uint16_t> to_find_types;
	if (to_find_tl != NULL) {
	for (size_t j = 0; j < to_find_tl->Size(); j++) {
	to_find_types.push_back(to_find_tl->GetTypeItem(j).type_idx_);
	}
	}
	const DexFile::ProtoId* found =
	java_lang_dex_file_->FindProtoId(to_find.return_type_idx_, to_find_types);
	ASSERT_TRUE(found != NULL);
	EXPECT_EQ(java_lang_dex_file_->GetIndexForProtoId(*found), i);
	}
	}

	TEST_F(DexFileTest, FindMethodId) {
	for (size_t i = 0; i < java_lang_dex_file_->NumMethodIds(); i++) {
	const DexFile::MethodId& to_find = java_lang_dex_file_->GetMethodId(i);
	const DexFile::TypeId& klass = java_lang_dex_file_->GetTypeId(to_find.class_idx_);
	const DexFile::StringId& name = java_lang_dex_file_->GetStringId(to_find.name_idx_);
	const DexFile::ProtoId& signature = java_lang_dex_file_->GetProtoId(to_find.proto_idx_);
	const DexFile::MethodId* found = java_lang_dex_file_->FindMethodId(klass, name, signature);
	int32_t length;
	ASSERT_TRUE(found != NULL) << "Didn't find method " << i << ": "
	<< java_lang_dex_file_->StringByTypeIdx(to_find.class_idx_) << "."
	<< java_lang_dex_file_->GetStringData(name)
	<< java_lang_dex_file_->CreateMethodSignature(to_find.proto_idx_, &length);
	EXPECT_EQ(java_lang_dex_file_->GetIndexForMethodId(*found), i);
	}
	}

	TEST_F(DexFileTest, FindFieldId) {
	for (size_t i = 0; i < java_lang_dex_file_->NumFieldIds(); i++) {
	const DexFile::FieldId& to_find = java_lang_dex_file_->GetFieldId(i);
	const DexFile::TypeId& klass = java_lang_dex_file_->GetTypeId(to_find.class_idx_);
	const DexFile::StringId& name = java_lang_dex_file_->GetStringId(to_find.name_idx_);
	const DexFile::TypeId& type = java_lang_dex_file_->GetTypeId(to_find.type_idx_);
	const DexFile::FieldId* found = java_lang_dex_file_->FindFieldId(klass, name, type);
	ASSERT_TRUE(found != NULL) << "Didn't find field " << i << ": "
	<< java_lang_dex_file_->StringByTypeIdx(to_find.type_idx_) << " "
	<< java_lang_dex_file_->StringByTypeIdx(to_find.class_idx_) << "."
	<< java_lang_dex_file_->GetStringData(name);
	EXPECT_EQ(java_lang_dex_file_->GetIndexForFieldId(*found), i);
	}
	}

	} // namespace art