object_test.cc revision cb6b0f31ede2275e79e6199ec391147585a37a2a
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "object.h" 18 19#include <stdint.h> 20#include <stdio.h> 21#include <memory> 22 23#include "array-inl.h" 24#include "art_field-inl.h" 25#include "art_method-inl.h" 26#include "asm_support.h" 27#include "class-inl.h" 28#include "class_linker.h" 29#include "class_linker-inl.h" 30#include "common_runtime_test.h" 31#include "dex_file.h" 32#include "entrypoints/entrypoint_utils-inl.h" 33#include "gc/accounting/card_table-inl.h" 34#include "gc/heap.h" 35#include "handle_scope-inl.h" 36#include "iftable-inl.h" 37#include "method_helper-inl.h" 38#include "object-inl.h" 39#include "object_array-inl.h" 40#include "scoped_thread_state_change.h" 41#include "string-inl.h" 42 43namespace art { 44namespace mirror { 45 46class ObjectTest : public CommonRuntimeTest { 47 protected: 48 void AssertString(int32_t expected_utf16_length, 49 const char* utf8_in, 50 const char* utf16_expected_le, 51 int32_t expected_hash) 52 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 53 std::unique_ptr<uint16_t[]> utf16_expected(new uint16_t[expected_utf16_length]); 54 for (int32_t i = 0; i < expected_utf16_length; i++) { 55 uint16_t ch = (((utf16_expected_le[i*2 + 0] & 0xff) << 8) | 56 ((utf16_expected_le[i*2 + 1] & 0xff) << 0)); 57 utf16_expected[i] = ch; 58 } 59 60 Thread* self = Thread::Current(); 61 StackHandleScope<1> hs(self); 62 Handle<String> string( 63 hs.NewHandle(String::AllocFromModifiedUtf8(self, expected_utf16_length, utf8_in))); 64 ASSERT_EQ(expected_utf16_length, string->GetLength()); 65 ASSERT_TRUE(string->GetCharArray() != NULL); 66 ASSERT_TRUE(string->GetCharArray()->GetData() != NULL); 67 // strlen is necessary because the 1-character string "\x00\x00" is interpreted as "" 68 ASSERT_TRUE(string->Equals(utf8_in) || (expected_utf16_length == 1 && strlen(utf8_in) == 0)); 69 ASSERT_TRUE(string->Equals(StringPiece(utf8_in)) || (expected_utf16_length == 1 && strlen(utf8_in) == 0)); 70 for (int32_t i = 0; i < expected_utf16_length; i++) { 71 EXPECT_EQ(utf16_expected[i], string->CharAt(i)); 72 } 73 EXPECT_EQ(expected_hash, string->GetHashCode()); 74 } 75}; 76 77// Keep the assembly code in sync 78TEST_F(ObjectTest, AsmConstants) { 79 EXPECT_EQ(CLASS_OFFSET, Object::ClassOffset().Int32Value()); 80 EXPECT_EQ(LOCK_WORD_OFFSET, Object::MonitorOffset().Int32Value()); 81 82 EXPECT_EQ(CLASS_COMPONENT_TYPE_OFFSET, Class::ComponentTypeOffset().Int32Value()); 83 84 EXPECT_EQ(ARRAY_LENGTH_OFFSET, Array::LengthOffset().Int32Value()); 85 EXPECT_EQ(OBJECT_ARRAY_DATA_OFFSET, Array::DataOffset(sizeof(HeapReference<Object>)).Int32Value()); 86 87 EXPECT_EQ(STRING_VALUE_OFFSET, String::ValueOffset().Int32Value()); 88 EXPECT_EQ(STRING_COUNT_OFFSET, String::CountOffset().Int32Value()); 89 EXPECT_EQ(STRING_OFFSET_OFFSET, String::OffsetOffset().Int32Value()); 90 EXPECT_EQ(STRING_DATA_OFFSET, Array::DataOffset(sizeof(uint16_t)).Int32Value()); 91 92 EXPECT_EQ(METHOD_DEX_CACHE_METHODS_OFFSET, ArtMethod::DexCacheResolvedMethodsOffset().Int32Value()); 93 EXPECT_EQ(METHOD_PORTABLE_CODE_OFFSET, ArtMethod::EntryPointFromPortableCompiledCodeOffset().Int32Value()); 94 EXPECT_EQ(METHOD_QUICK_CODE_OFFSET, ArtMethod::EntryPointFromQuickCompiledCodeOffset().Int32Value()); 95} 96 97TEST_F(ObjectTest, IsInSamePackage) { 98 // Matches 99 EXPECT_TRUE(Class::IsInSamePackage("Ljava/lang/Object;", "Ljava/lang/Class;")); 100 EXPECT_TRUE(Class::IsInSamePackage("LFoo;", "LBar;")); 101 102 // Mismatches 103 EXPECT_FALSE(Class::IsInSamePackage("Ljava/lang/Object;", "Ljava/io/File;")); 104 EXPECT_FALSE(Class::IsInSamePackage("Ljava/lang/Object;", "Ljava/lang/reflect/Method;")); 105} 106 107TEST_F(ObjectTest, Clone) { 108 ScopedObjectAccess soa(Thread::Current()); 109 StackHandleScope<2> hs(soa.Self()); 110 Handle<ObjectArray<Object>> a1( 111 hs.NewHandle(class_linker_->AllocObjectArray<Object>(soa.Self(), 256))); 112 size_t s1 = a1->SizeOf(); 113 Object* clone = a1->Clone(soa.Self()); 114 EXPECT_EQ(s1, clone->SizeOf()); 115 EXPECT_TRUE(clone->GetClass() == a1->GetClass()); 116} 117 118TEST_F(ObjectTest, AllocObjectArray) { 119 ScopedObjectAccess soa(Thread::Current()); 120 StackHandleScope<2> hs(soa.Self()); 121 Handle<ObjectArray<Object>> oa( 122 hs.NewHandle(class_linker_->AllocObjectArray<Object>(soa.Self(), 2))); 123 EXPECT_EQ(2, oa->GetLength()); 124 EXPECT_TRUE(oa->Get(0) == NULL); 125 EXPECT_TRUE(oa->Get(1) == NULL); 126 oa->Set<false>(0, oa.Get()); 127 EXPECT_TRUE(oa->Get(0) == oa.Get()); 128 EXPECT_TRUE(oa->Get(1) == NULL); 129 oa->Set<false>(1, oa.Get()); 130 EXPECT_TRUE(oa->Get(0) == oa.Get()); 131 EXPECT_TRUE(oa->Get(1) == oa.Get()); 132 133 Class* aioobe = class_linker_->FindSystemClass(soa.Self(), 134 "Ljava/lang/ArrayIndexOutOfBoundsException;"); 135 136 EXPECT_TRUE(oa->Get(-1) == NULL); 137 EXPECT_TRUE(soa.Self()->IsExceptionPending()); 138 EXPECT_EQ(aioobe, soa.Self()->GetException(NULL)->GetClass()); 139 soa.Self()->ClearException(); 140 141 EXPECT_TRUE(oa->Get(2) == NULL); 142 EXPECT_TRUE(soa.Self()->IsExceptionPending()); 143 EXPECT_EQ(aioobe, soa.Self()->GetException(NULL)->GetClass()); 144 soa.Self()->ClearException(); 145 146 ASSERT_TRUE(oa->GetClass() != NULL); 147 Handle<mirror::Class> klass(hs.NewHandle(oa->GetClass())); 148 ASSERT_EQ(2U, klass->NumDirectInterfaces()); 149 EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Cloneable;"), 150 mirror::Class::GetDirectInterface(soa.Self(), klass, 0)); 151 EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "Ljava/io/Serializable;"), 152 mirror::Class::GetDirectInterface(soa.Self(), klass, 1)); 153} 154 155TEST_F(ObjectTest, AllocArray) { 156 ScopedObjectAccess soa(Thread::Current()); 157 Class* c = class_linker_->FindSystemClass(soa.Self(), "[I"); 158 StackHandleScope<1> hs(soa.Self()); 159 Handle<Array> a( 160 hs.NewHandle(Array::Alloc<true>(soa.Self(), c, 1, c->GetComponentSize(), 161 Runtime::Current()->GetHeap()->GetCurrentAllocator()))); 162 EXPECT_TRUE(c == a->GetClass()); 163 EXPECT_EQ(1, a->GetLength()); 164 165 c = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;"); 166 a.Assign(Array::Alloc<true>(soa.Self(), c, 1, c->GetComponentSize(), 167 Runtime::Current()->GetHeap()->GetCurrentAllocator())); 168 EXPECT_TRUE(c == a->GetClass()); 169 EXPECT_EQ(1, a->GetLength()); 170 171 c = class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Object;"); 172 a.Assign(Array::Alloc<true>(soa.Self(), c, 1, c->GetComponentSize(), 173 Runtime::Current()->GetHeap()->GetCurrentAllocator())); 174 EXPECT_TRUE(c == a->GetClass()); 175 EXPECT_EQ(1, a->GetLength()); 176} 177 178TEST_F(ObjectTest, AllocArray_FillUsable) { 179 ScopedObjectAccess soa(Thread::Current()); 180 Class* c = class_linker_->FindSystemClass(soa.Self(), "[B"); 181 StackHandleScope<1> hs(soa.Self()); 182 Handle<Array> a( 183 hs.NewHandle(Array::Alloc<true>(soa.Self(), c, 1, c->GetComponentSize(), 184 Runtime::Current()->GetHeap()->GetCurrentAllocator(), true))); 185 EXPECT_TRUE(c == a->GetClass()); 186 EXPECT_LE(1, a->GetLength()); 187 188 c = class_linker_->FindSystemClass(soa.Self(), "[I"); 189 a.Assign(Array::Alloc<true>(soa.Self(), c, 2, c->GetComponentSize(), 190 Runtime::Current()->GetHeap()->GetCurrentAllocator(), true)); 191 EXPECT_TRUE(c == a->GetClass()); 192 EXPECT_LE(2, a->GetLength()); 193 194 c = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;"); 195 a.Assign(Array::Alloc<true>(soa.Self(), c, 2, c->GetComponentSize(), 196 Runtime::Current()->GetHeap()->GetCurrentAllocator(), true)); 197 EXPECT_TRUE(c == a->GetClass()); 198 EXPECT_LE(2, a->GetLength()); 199 200 c = class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Object;"); 201 a.Assign(Array::Alloc<true>(soa.Self(), c, 2, c->GetComponentSize(), 202 Runtime::Current()->GetHeap()->GetCurrentAllocator(), true)); 203 EXPECT_TRUE(c == a->GetClass()); 204 EXPECT_LE(2, a->GetLength()); 205} 206 207template<typename ArrayT> 208void TestPrimitiveArray(ClassLinker* cl) { 209 ScopedObjectAccess soa(Thread::Current()); 210 typedef typename ArrayT::ElementType T; 211 212 ArrayT* a = ArrayT::Alloc(soa.Self(), 2); 213 EXPECT_EQ(2, a->GetLength()); 214 EXPECT_EQ(0, a->Get(0)); 215 EXPECT_EQ(0, a->Get(1)); 216 a->Set(0, T(123)); 217 EXPECT_EQ(T(123), a->Get(0)); 218 EXPECT_EQ(0, a->Get(1)); 219 a->Set(1, T(321)); 220 EXPECT_EQ(T(123), a->Get(0)); 221 EXPECT_EQ(T(321), a->Get(1)); 222 223 Class* aioobe = cl->FindSystemClass(soa.Self(), "Ljava/lang/ArrayIndexOutOfBoundsException;"); 224 225 EXPECT_EQ(0, a->Get(-1)); 226 EXPECT_TRUE(soa.Self()->IsExceptionPending()); 227 EXPECT_EQ(aioobe, soa.Self()->GetException(NULL)->GetClass()); 228 soa.Self()->ClearException(); 229 230 EXPECT_EQ(0, a->Get(2)); 231 EXPECT_TRUE(soa.Self()->IsExceptionPending()); 232 EXPECT_EQ(aioobe, soa.Self()->GetException(NULL)->GetClass()); 233 soa.Self()->ClearException(); 234} 235 236TEST_F(ObjectTest, PrimitiveArray_Boolean_Alloc) { 237 TestPrimitiveArray<BooleanArray>(class_linker_); 238} 239TEST_F(ObjectTest, PrimitiveArray_Byte_Alloc) { 240 TestPrimitiveArray<ByteArray>(class_linker_); 241} 242TEST_F(ObjectTest, PrimitiveArray_Char_Alloc) { 243 TestPrimitiveArray<CharArray>(class_linker_); 244} 245TEST_F(ObjectTest, PrimitiveArray_Double_Alloc) { 246 TestPrimitiveArray<DoubleArray>(class_linker_); 247} 248TEST_F(ObjectTest, PrimitiveArray_Float_Alloc) { 249 TestPrimitiveArray<FloatArray>(class_linker_); 250} 251TEST_F(ObjectTest, PrimitiveArray_Int_Alloc) { 252 TestPrimitiveArray<IntArray>(class_linker_); 253} 254TEST_F(ObjectTest, PrimitiveArray_Long_Alloc) { 255 TestPrimitiveArray<LongArray>(class_linker_); 256} 257TEST_F(ObjectTest, PrimitiveArray_Short_Alloc) { 258 TestPrimitiveArray<ShortArray>(class_linker_); 259} 260 261TEST_F(ObjectTest, CheckAndAllocArrayFromCode) { 262 // pretend we are trying to call 'new char[3]' from String.toCharArray 263 ScopedObjectAccess soa(Thread::Current()); 264 Class* java_util_Arrays = class_linker_->FindSystemClass(soa.Self(), "Ljava/util/Arrays;"); 265 ArtMethod* sort = java_util_Arrays->FindDirectMethod("sort", "([I)V"); 266 const DexFile::StringId* string_id = java_lang_dex_file_->FindStringId("[I"); 267 ASSERT_TRUE(string_id != NULL); 268 const DexFile::TypeId* type_id = java_lang_dex_file_->FindTypeId( 269 java_lang_dex_file_->GetIndexForStringId(*string_id)); 270 ASSERT_TRUE(type_id != NULL); 271 uint32_t type_idx = java_lang_dex_file_->GetIndexForTypeId(*type_id); 272 Object* array = CheckAndAllocArrayFromCodeInstrumented(type_idx, sort, 3, Thread::Current(), false, 273 Runtime::Current()->GetHeap()->GetCurrentAllocator()); 274 EXPECT_TRUE(array->IsArrayInstance()); 275 EXPECT_EQ(3, array->AsArray()->GetLength()); 276 EXPECT_TRUE(array->GetClass()->IsArrayClass()); 277 EXPECT_TRUE(array->GetClass()->GetComponentType()->IsPrimitive()); 278} 279 280TEST_F(ObjectTest, CreateMultiArray) { 281 ScopedObjectAccess soa(Thread::Current()); 282 283 StackHandleScope<2> hs(soa.Self()); 284 Handle<Class> c(hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "I"))); 285 Handle<IntArray> dims(hs.NewHandle(IntArray::Alloc(soa.Self(), 1))); 286 dims->Set<false>(0, 1); 287 Array* multi = Array::CreateMultiArray(soa.Self(), c, dims); 288 EXPECT_TRUE(multi->GetClass() == class_linker_->FindSystemClass(soa.Self(), "[I")); 289 EXPECT_EQ(1, multi->GetLength()); 290 291 dims->Set<false>(0, -1); 292 multi = Array::CreateMultiArray(soa.Self(), c, dims); 293 EXPECT_TRUE(soa.Self()->IsExceptionPending()); 294 EXPECT_EQ(PrettyDescriptor(soa.Self()->GetException(NULL)->GetClass()), 295 "java.lang.NegativeArraySizeException"); 296 soa.Self()->ClearException(); 297 298 dims.Assign(IntArray::Alloc(soa.Self(), 2)); 299 for (int i = 1; i < 20; ++i) { 300 for (int j = 0; j < 20; ++j) { 301 dims->Set<false>(0, i); 302 dims->Set<false>(1, j); 303 multi = Array::CreateMultiArray(soa.Self(), c, dims); 304 EXPECT_TRUE(multi->GetClass() == class_linker_->FindSystemClass(soa.Self(), "[[I")); 305 EXPECT_EQ(i, multi->GetLength()); 306 for (int k = 0; k < i; ++k) { 307 Array* outer = multi->AsObjectArray<Array>()->Get(k); 308 EXPECT_TRUE(outer->GetClass() == class_linker_->FindSystemClass(soa.Self(), "[I")); 309 EXPECT_EQ(j, outer->GetLength()); 310 } 311 } 312 } 313} 314 315TEST_F(ObjectTest, StaticFieldFromCode) { 316 // pretend we are trying to access 'Static.s0' from StaticsFromCode.<clinit> 317 ScopedObjectAccess soa(Thread::Current()); 318 jobject class_loader = LoadDex("StaticsFromCode"); 319 const DexFile* dex_file = Runtime::Current()->GetCompileTimeClassPath(class_loader)[0]; 320 CHECK(dex_file != NULL); 321 322 StackHandleScope<2> hs(soa.Self()); 323 Handle<mirror::ClassLoader> loader(hs.NewHandle(soa.Decode<ClassLoader*>(class_loader))); 324 Class* klass = class_linker_->FindClass(soa.Self(), "LStaticsFromCode;", loader); 325 ArtMethod* clinit = klass->FindClassInitializer(); 326 const DexFile::StringId* klass_string_id = dex_file->FindStringId("LStaticsFromCode;"); 327 ASSERT_TRUE(klass_string_id != NULL); 328 const DexFile::TypeId* klass_type_id = dex_file->FindTypeId( 329 dex_file->GetIndexForStringId(*klass_string_id)); 330 ASSERT_TRUE(klass_type_id != NULL); 331 332 const DexFile::StringId* type_string_id = dex_file->FindStringId("Ljava/lang/Object;"); 333 ASSERT_TRUE(type_string_id != NULL); 334 const DexFile::TypeId* type_type_id = dex_file->FindTypeId( 335 dex_file->GetIndexForStringId(*type_string_id)); 336 ASSERT_TRUE(type_type_id != NULL); 337 338 const DexFile::StringId* name_str_id = dex_file->FindStringId("s0"); 339 ASSERT_TRUE(name_str_id != NULL); 340 341 const DexFile::FieldId* field_id = dex_file->FindFieldId( 342 *klass_type_id, *name_str_id, *type_type_id); 343 ASSERT_TRUE(field_id != NULL); 344 uint32_t field_idx = dex_file->GetIndexForFieldId(*field_id); 345 346 ArtField* field = FindFieldFromCode<StaticObjectRead, true>(field_idx, clinit, Thread::Current(), 347 sizeof(HeapReference<Object>)); 348 Object* s0 = field->GetObj(klass); 349 EXPECT_TRUE(s0 != NULL); 350 351 Handle<CharArray> char_array(hs.NewHandle(CharArray::Alloc(soa.Self(), 0))); 352 field->SetObj<false>(field->GetDeclaringClass(), char_array.Get()); 353 EXPECT_EQ(char_array.Get(), field->GetObj(klass)); 354 355 field->SetObj<false>(field->GetDeclaringClass(), NULL); 356 EXPECT_EQ(NULL, field->GetObj(klass)); 357 358 // TODO: more exhaustive tests of all 6 cases of ArtField::*FromCode 359} 360 361TEST_F(ObjectTest, String) { 362 ScopedObjectAccess soa(Thread::Current()); 363 // Test the empty string. 364 AssertString(0, "", "", 0); 365 366 // Test one-byte characters. 367 AssertString(1, " ", "\x00\x20", 0x20); 368 AssertString(1, "", "\x00\x00", 0); 369 AssertString(1, "\x7f", "\x00\x7f", 0x7f); 370 AssertString(2, "hi", "\x00\x68\x00\x69", (31 * 0x68) + 0x69); 371 372 // Test two-byte characters. 373 AssertString(1, "\xc2\x80", "\x00\x80", 0x80); 374 AssertString(1, "\xd9\xa6", "\x06\x66", 0x0666); 375 AssertString(1, "\xdf\xbf", "\x07\xff", 0x07ff); 376 AssertString(3, "h\xd9\xa6i", "\x00\x68\x06\x66\x00\x69", (31 * ((31 * 0x68) + 0x0666)) + 0x69); 377 378 // Test three-byte characters. 379 AssertString(1, "\xe0\xa0\x80", "\x08\x00", 0x0800); 380 AssertString(1, "\xe1\x88\xb4", "\x12\x34", 0x1234); 381 AssertString(1, "\xef\xbf\xbf", "\xff\xff", 0xffff); 382 AssertString(3, "h\xe1\x88\xb4i", "\x00\x68\x12\x34\x00\x69", (31 * ((31 * 0x68) + 0x1234)) + 0x69); 383} 384 385TEST_F(ObjectTest, StringEqualsUtf8) { 386 ScopedObjectAccess soa(Thread::Current()); 387 StackHandleScope<2> hs(soa.Self()); 388 Handle<String> string(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android"))); 389 EXPECT_TRUE(string->Equals("android")); 390 EXPECT_FALSE(string->Equals("Android")); 391 EXPECT_FALSE(string->Equals("ANDROID")); 392 EXPECT_FALSE(string->Equals("")); 393 EXPECT_FALSE(string->Equals("and")); 394 EXPECT_FALSE(string->Equals("androids")); 395 396 Handle<String> empty(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), ""))); 397 EXPECT_TRUE(empty->Equals("")); 398 EXPECT_FALSE(empty->Equals("a")); 399} 400 401TEST_F(ObjectTest, StringEquals) { 402 ScopedObjectAccess soa(Thread::Current()); 403 StackHandleScope<3> hs(soa.Self()); 404 Handle<String> string(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android"))); 405 Handle<String> string_2(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android"))); 406 EXPECT_TRUE(string->Equals(string_2.Get())); 407 EXPECT_FALSE(string->Equals("Android")); 408 EXPECT_FALSE(string->Equals("ANDROID")); 409 EXPECT_FALSE(string->Equals("")); 410 EXPECT_FALSE(string->Equals("and")); 411 EXPECT_FALSE(string->Equals("androids")); 412 413 Handle<String> empty(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), ""))); 414 EXPECT_TRUE(empty->Equals("")); 415 EXPECT_FALSE(empty->Equals("a")); 416} 417 418TEST_F(ObjectTest, StringCompareTo) { 419 ScopedObjectAccess soa(Thread::Current()); 420 StackHandleScope<5> hs(soa.Self()); 421 Handle<String> string(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android"))); 422 Handle<String> string_2(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android"))); 423 Handle<String> string_3(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "Android"))); 424 Handle<String> string_4(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "and"))); 425 Handle<String> string_5(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), ""))); 426 EXPECT_EQ(0, string->CompareTo(string_2.Get())); 427 EXPECT_LT(0, string->CompareTo(string_3.Get())); 428 EXPECT_GT(0, string_3->CompareTo(string.Get())); 429 EXPECT_LT(0, string->CompareTo(string_4.Get())); 430 EXPECT_GT(0, string_4->CompareTo(string.Get())); 431 EXPECT_LT(0, string->CompareTo(string_5.Get())); 432 EXPECT_GT(0, string_5->CompareTo(string.Get())); 433} 434 435TEST_F(ObjectTest, StringLength) { 436 ScopedObjectAccess soa(Thread::Current()); 437 StackHandleScope<1> hs(soa.Self()); 438 Handle<String> string(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android"))); 439 EXPECT_EQ(string->GetLength(), 7); 440 EXPECT_EQ(string->GetUtfLength(), 7); 441 442 string->SetOffset(2); 443 string->SetCount(5); 444 EXPECT_TRUE(string->Equals("droid")); 445 EXPECT_EQ(string->GetLength(), 5); 446 EXPECT_EQ(string->GetUtfLength(), 5); 447} 448 449TEST_F(ObjectTest, DescriptorCompare) { 450 // Two classloaders conflicts in compile_time_class_paths_. 451 ScopedObjectAccess soa(Thread::Current()); 452 ClassLinker* linker = class_linker_; 453 454 jobject jclass_loader_1 = LoadDex("ProtoCompare"); 455 jobject jclass_loader_2 = LoadDex("ProtoCompare2"); 456 StackHandleScope<4> hs(soa.Self()); 457 Handle<ClassLoader> class_loader_1(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader_1))); 458 Handle<ClassLoader> class_loader_2(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader_2))); 459 460 Class* klass1 = linker->FindClass(soa.Self(), "LProtoCompare;", class_loader_1); 461 ASSERT_TRUE(klass1 != NULL); 462 Class* klass2 = linker->FindClass(soa.Self(), "LProtoCompare2;", class_loader_2); 463 ASSERT_TRUE(klass2 != NULL); 464 465 ArtMethod* m1_1 = klass1->GetVirtualMethod(0); 466 EXPECT_STREQ(m1_1->GetName(), "m1"); 467 ArtMethod* m2_1 = klass1->GetVirtualMethod(1); 468 EXPECT_STREQ(m2_1->GetName(), "m2"); 469 ArtMethod* m3_1 = klass1->GetVirtualMethod(2); 470 EXPECT_STREQ(m3_1->GetName(), "m3"); 471 ArtMethod* m4_1 = klass1->GetVirtualMethod(3); 472 EXPECT_STREQ(m4_1->GetName(), "m4"); 473 474 ArtMethod* m1_2 = klass2->GetVirtualMethod(0); 475 EXPECT_STREQ(m1_2->GetName(), "m1"); 476 ArtMethod* m2_2 = klass2->GetVirtualMethod(1); 477 EXPECT_STREQ(m2_2->GetName(), "m2"); 478 ArtMethod* m3_2 = klass2->GetVirtualMethod(2); 479 EXPECT_STREQ(m3_2->GetName(), "m3"); 480 ArtMethod* m4_2 = klass2->GetVirtualMethod(3); 481 EXPECT_STREQ(m4_2->GetName(), "m4"); 482 483 MethodHelper mh(hs.NewHandle(m1_1)); 484 MethodHelper mh2(hs.NewHandle(m1_2)); 485 EXPECT_TRUE(mh.HasSameNameAndSignature(&mh2)); 486 EXPECT_TRUE(mh2.HasSameNameAndSignature(&mh)); 487 488 mh.ChangeMethod(m2_1); 489 mh2.ChangeMethod(m2_2); 490 EXPECT_TRUE(mh.HasSameNameAndSignature(&mh2)); 491 EXPECT_TRUE(mh2.HasSameNameAndSignature(&mh)); 492 493 mh.ChangeMethod(m3_1); 494 mh2.ChangeMethod(m3_2); 495 EXPECT_TRUE(mh.HasSameNameAndSignature(&mh2)); 496 EXPECT_TRUE(mh2.HasSameNameAndSignature(&mh)); 497 498 mh.ChangeMethod(m4_1); 499 mh2.ChangeMethod(m4_2); 500 EXPECT_TRUE(mh.HasSameNameAndSignature(&mh2)); 501 EXPECT_TRUE(mh2.HasSameNameAndSignature(&mh)); 502} 503 504TEST_F(ObjectTest, StringHashCode) { 505 ScopedObjectAccess soa(Thread::Current()); 506 StackHandleScope<3> hs(soa.Self()); 507 Handle<String> empty(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), ""))); 508 Handle<String> A(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "A"))); 509 Handle<String> ABC(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "ABC"))); 510 511 EXPECT_EQ(0, empty->GetHashCode()); 512 EXPECT_EQ(65, A->GetHashCode()); 513 EXPECT_EQ(64578, ABC->GetHashCode()); 514} 515 516TEST_F(ObjectTest, InstanceOf) { 517 ScopedObjectAccess soa(Thread::Current()); 518 jobject jclass_loader = LoadDex("XandY"); 519 StackHandleScope<3> hs(soa.Self()); 520 Handle<ClassLoader> class_loader(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader))); 521 522 Class* X = class_linker_->FindClass(soa.Self(), "LX;", class_loader); 523 Class* Y = class_linker_->FindClass(soa.Self(), "LY;", class_loader); 524 ASSERT_TRUE(X != NULL); 525 ASSERT_TRUE(Y != NULL); 526 527 Handle<Object> x(hs.NewHandle(X->AllocObject(soa.Self()))); 528 Handle<Object> y(hs.NewHandle(Y->AllocObject(soa.Self()))); 529 ASSERT_TRUE(x.Get() != NULL); 530 ASSERT_TRUE(y.Get() != NULL); 531 532 EXPECT_TRUE(x->InstanceOf(X)); 533 EXPECT_FALSE(x->InstanceOf(Y)); 534 EXPECT_TRUE(y->InstanceOf(X)); 535 EXPECT_TRUE(y->InstanceOf(Y)); 536 537 Class* java_lang_Class = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Class;"); 538 Class* Object_array_class = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;"); 539 540 EXPECT_FALSE(java_lang_Class->InstanceOf(Object_array_class)); 541 EXPECT_TRUE(Object_array_class->InstanceOf(java_lang_Class)); 542 543 // All array classes implement Cloneable and Serializable. 544 Object* array = ObjectArray<Object>::Alloc(soa.Self(), Object_array_class, 1); 545 Class* java_lang_Cloneable = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Cloneable;"); 546 Class* java_io_Serializable = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/Serializable;"); 547 EXPECT_TRUE(array->InstanceOf(java_lang_Cloneable)); 548 EXPECT_TRUE(array->InstanceOf(java_io_Serializable)); 549} 550 551TEST_F(ObjectTest, IsAssignableFrom) { 552 ScopedObjectAccess soa(Thread::Current()); 553 jobject jclass_loader = LoadDex("XandY"); 554 StackHandleScope<1> hs(soa.Self()); 555 Handle<ClassLoader> class_loader(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader))); 556 Class* X = class_linker_->FindClass(soa.Self(), "LX;", class_loader); 557 Class* Y = class_linker_->FindClass(soa.Self(), "LY;", class_loader); 558 559 EXPECT_TRUE(X->IsAssignableFrom(X)); 560 EXPECT_TRUE(X->IsAssignableFrom(Y)); 561 EXPECT_FALSE(Y->IsAssignableFrom(X)); 562 EXPECT_TRUE(Y->IsAssignableFrom(Y)); 563 564 // class final String implements CharSequence, .. 565 Class* string = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/String;"); 566 Class* charseq = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/CharSequence;"); 567 // Can String be assigned to CharSequence without a cast? 568 EXPECT_TRUE(charseq->IsAssignableFrom(string)); 569 // Can CharSequence be assigned to String without a cast? 570 EXPECT_FALSE(string->IsAssignableFrom(charseq)); 571 572 // Primitive types are only assignable to themselves 573 const char* prims = "ZBCSIJFD"; 574 Class* prim_types[strlen(prims)]; 575 for (size_t i = 0; i < strlen(prims); i++) { 576 prim_types[i] = class_linker_->FindPrimitiveClass(prims[i]); 577 } 578 for (size_t i = 0; i < strlen(prims); i++) { 579 for (size_t j = 0; i < strlen(prims); i++) { 580 if (i == j) { 581 EXPECT_TRUE(prim_types[i]->IsAssignableFrom(prim_types[j])); 582 } else { 583 EXPECT_FALSE(prim_types[i]->IsAssignableFrom(prim_types[j])); 584 } 585 } 586 } 587} 588 589TEST_F(ObjectTest, IsAssignableFromArray) { 590 ScopedObjectAccess soa(Thread::Current()); 591 jobject jclass_loader = LoadDex("XandY"); 592 StackHandleScope<1> hs(soa.Self()); 593 Handle<ClassLoader> class_loader(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader))); 594 Class* X = class_linker_->FindClass(soa.Self(), "LX;", class_loader); 595 Class* Y = class_linker_->FindClass(soa.Self(), "LY;", class_loader); 596 ASSERT_TRUE(X != NULL); 597 ASSERT_TRUE(Y != NULL); 598 599 Class* YA = class_linker_->FindClass(soa.Self(), "[LY;", class_loader); 600 Class* YAA = class_linker_->FindClass(soa.Self(), "[[LY;", class_loader); 601 ASSERT_TRUE(YA != NULL); 602 ASSERT_TRUE(YAA != NULL); 603 604 Class* XAA = class_linker_->FindClass(soa.Self(), "[[LX;", class_loader); 605 ASSERT_TRUE(XAA != NULL); 606 607 Class* O = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;"); 608 Class* OA = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;"); 609 Class* OAA = class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Object;"); 610 Class* OAAA = class_linker_->FindSystemClass(soa.Self(), "[[[Ljava/lang/Object;"); 611 ASSERT_TRUE(O != NULL); 612 ASSERT_TRUE(OA != NULL); 613 ASSERT_TRUE(OAA != NULL); 614 ASSERT_TRUE(OAAA != NULL); 615 616 Class* S = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/Serializable;"); 617 Class* SA = class_linker_->FindSystemClass(soa.Self(), "[Ljava/io/Serializable;"); 618 Class* SAA = class_linker_->FindSystemClass(soa.Self(), "[[Ljava/io/Serializable;"); 619 ASSERT_TRUE(S != NULL); 620 ASSERT_TRUE(SA != NULL); 621 ASSERT_TRUE(SAA != NULL); 622 623 Class* IA = class_linker_->FindSystemClass(soa.Self(), "[I"); 624 ASSERT_TRUE(IA != NULL); 625 626 EXPECT_TRUE(YAA->IsAssignableFrom(YAA)); // identity 627 EXPECT_TRUE(XAA->IsAssignableFrom(YAA)); // element superclass 628 EXPECT_FALSE(YAA->IsAssignableFrom(XAA)); 629 EXPECT_FALSE(Y->IsAssignableFrom(YAA)); 630 EXPECT_FALSE(YA->IsAssignableFrom(YAA)); 631 EXPECT_TRUE(O->IsAssignableFrom(YAA)); // everything is an Object 632 EXPECT_TRUE(OA->IsAssignableFrom(YAA)); 633 EXPECT_TRUE(OAA->IsAssignableFrom(YAA)); 634 EXPECT_TRUE(S->IsAssignableFrom(YAA)); // all arrays are Serializable 635 EXPECT_TRUE(SA->IsAssignableFrom(YAA)); 636 EXPECT_FALSE(SAA->IsAssignableFrom(YAA)); // unless Y was Serializable 637 638 EXPECT_FALSE(IA->IsAssignableFrom(OA)); 639 EXPECT_FALSE(OA->IsAssignableFrom(IA)); 640 EXPECT_TRUE(O->IsAssignableFrom(IA)); 641} 642 643TEST_F(ObjectTest, FindInstanceField) { 644 ScopedObjectAccess soa(Thread::Current()); 645 StackHandleScope<1> hs(soa.Self()); 646 Handle<String> s(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "ABC"))); 647 ASSERT_TRUE(s.Get() != NULL); 648 Class* c = s->GetClass(); 649 ASSERT_TRUE(c != NULL); 650 651 // Wrong type. 652 EXPECT_TRUE(c->FindDeclaredInstanceField("count", "J") == NULL); 653 EXPECT_TRUE(c->FindInstanceField("count", "J") == NULL); 654 655 // Wrong name. 656 EXPECT_TRUE(c->FindDeclaredInstanceField("Count", "I") == NULL); 657 EXPECT_TRUE(c->FindInstanceField("Count", "I") == NULL); 658 659 // Right name and type. 660 ArtField* f1 = c->FindDeclaredInstanceField("count", "I"); 661 ArtField* f2 = c->FindInstanceField("count", "I"); 662 EXPECT_TRUE(f1 != NULL); 663 EXPECT_TRUE(f2 != NULL); 664 EXPECT_EQ(f1, f2); 665 666 // TODO: check that s.count == 3. 667 668 // Ensure that we handle superclass fields correctly... 669 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/StringBuilder;"); 670 ASSERT_TRUE(c != NULL); 671 // No StringBuilder.count... 672 EXPECT_TRUE(c->FindDeclaredInstanceField("count", "I") == NULL); 673 // ...but there is an AbstractStringBuilder.count. 674 EXPECT_TRUE(c->FindInstanceField("count", "I") != NULL); 675} 676 677TEST_F(ObjectTest, FindStaticField) { 678 ScopedObjectAccess soa(Thread::Current()); 679 StackHandleScope<4> hs(soa.Self()); 680 Handle<String> s(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "ABC"))); 681 ASSERT_TRUE(s.Get() != NULL); 682 Handle<Class> c(hs.NewHandle(s->GetClass())); 683 ASSERT_TRUE(c.Get() != NULL); 684 685 // Wrong type. 686 EXPECT_TRUE(c->FindDeclaredStaticField("CASE_INSENSITIVE_ORDER", "I") == NULL); 687 EXPECT_TRUE(mirror::Class::FindStaticField(soa.Self(), c, "CASE_INSENSITIVE_ORDER", "I") == NULL); 688 689 // Wrong name. 690 EXPECT_TRUE(c->FindDeclaredStaticField("cASE_INSENSITIVE_ORDER", "Ljava/util/Comparator;") == NULL); 691 EXPECT_TRUE( 692 mirror::Class::FindStaticField(soa.Self(), c, "cASE_INSENSITIVE_ORDER", 693 "Ljava/util/Comparator;") == NULL); 694 695 // Right name and type. 696 Handle<ArtField> f1(hs.NewHandle( 697 c->FindDeclaredStaticField("CASE_INSENSITIVE_ORDER", "Ljava/util/Comparator;"))); 698 Handle<ArtField> f2(hs.NewHandle( 699 mirror::Class::FindStaticField(soa.Self(), c, "CASE_INSENSITIVE_ORDER", 700 "Ljava/util/Comparator;"))); 701 EXPECT_TRUE(f1.Get() != NULL); 702 EXPECT_TRUE(f2.Get() != NULL); 703 EXPECT_EQ(f1.Get(), f2.Get()); 704 705 // TODO: test static fields via superclasses. 706 // TODO: test static fields via interfaces. 707 // TODO: test that interfaces trump superclasses. 708} 709 710} // namespace mirror 711} // namespace art 712