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SDK_RK3288/art/runtime/mirror/object_test.cc

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/*
* 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 "object.h"
#include <stdint.h>
#include <stdio.h>
#include <memory>
#include "array-inl.h"
#include "art_field-inl.h"
#include "art_method-inl.h"
#include "asm_support.h"
#include "class-inl.h"
#include "class_linker.h"
#include "class_linker-inl.h"
#include "common_runtime_test.h"
#include "dex_file.h"
#include "entrypoints/entrypoint_utils-inl.h"
#include "gc/accounting/card_table-inl.h"
#include "gc/heap.h"
#include "handle_scope-inl.h"
#include "iftable-inl.h"
#include "method_helper-inl.h"
#include "object-inl.h"
#include "object_array-inl.h"
#include "scoped_thread_state_change.h"
#include "string-inl.h"
namespace art {
namespace mirror {
class ObjectTest : public CommonRuntimeTest {
protected:
void AssertString(int32_t expected_utf16_length,
const char* utf8_in,
const char* utf16_expected_le,
int32_t expected_hash)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
std::unique_ptr<uint16_t[]> utf16_expected(new uint16_t[expected_utf16_length]);
for (int32_t i = 0; i < expected_utf16_length; i++) {
uint16_t ch = (((utf16_expected_le[i*2 + 0] & 0xff) << 8) |
((utf16_expected_le[i*2 + 1] & 0xff) << 0));
utf16_expected[i] = ch;
}
Thread* self = Thread::Current();
StackHandleScope<1> hs(self);
Handle<String> string(
hs.NewHandle(String::AllocFromModifiedUtf8(self, expected_utf16_length, utf8_in)));
ASSERT_EQ(expected_utf16_length, string->GetLength());
ASSERT_TRUE(string->GetCharArray() != NULL);
ASSERT_TRUE(string->GetCharArray()->GetData() != NULL);
// strlen is necessary because the 1-character string "\x00\x00" is interpreted as ""
ASSERT_TRUE(string->Equals(utf8_in) || (expected_utf16_length == 1 && strlen(utf8_in) == 0));
ASSERT_TRUE(string->Equals(StringPiece(utf8_in)) || (expected_utf16_length == 1 && strlen(utf8_in) == 0));
for (int32_t i = 0; i < expected_utf16_length; i++) {
EXPECT_EQ(utf16_expected[i], string->CharAt(i));
}
EXPECT_EQ(expected_hash, string->GetHashCode());
}
};
// Keep the assembly code in sync
TEST_F(ObjectTest, AsmConstants) {
EXPECT_EQ(CLASS_OFFSET, Object::ClassOffset().Int32Value());
EXPECT_EQ(LOCK_WORD_OFFSET, Object::MonitorOffset().Int32Value());
EXPECT_EQ(CLASS_COMPONENT_TYPE_OFFSET, Class::ComponentTypeOffset().Int32Value());
EXPECT_EQ(ARRAY_LENGTH_OFFSET, Array::LengthOffset().Int32Value());
EXPECT_EQ(OBJECT_ARRAY_DATA_OFFSET, Array::DataOffset(sizeof(HeapReference<Object>)).Int32Value());
EXPECT_EQ(STRING_VALUE_OFFSET, String::ValueOffset().Int32Value());
EXPECT_EQ(STRING_COUNT_OFFSET, String::CountOffset().Int32Value());
EXPECT_EQ(STRING_OFFSET_OFFSET, String::OffsetOffset().Int32Value());
EXPECT_EQ(STRING_DATA_OFFSET, Array::DataOffset(sizeof(uint16_t)).Int32Value());
EXPECT_EQ(METHOD_DEX_CACHE_METHODS_OFFSET,
ArtMethod::DexCacheResolvedMethodsOffset().Int32Value());
#if defined(ART_USE_PORTABLE_COMPILER)
EXPECT_EQ(METHOD_PORTABLE_CODE_OFFSET_32,
ArtMethod::EntryPointFromPortableCompiledCodeOffset(4).Int32Value());
EXPECT_EQ(METHOD_PORTABLE_CODE_OFFSET_64,
ArtMethod::EntryPointFromPortableCompiledCodeOffset(8).Int32Value());
#endif
EXPECT_EQ(METHOD_QUICK_CODE_OFFSET_32,
ArtMethod::EntryPointFromQuickCompiledCodeOffset(4).Int32Value());
EXPECT_EQ(METHOD_QUICK_CODE_OFFSET_64,
ArtMethod::EntryPointFromQuickCompiledCodeOffset(8).Int32Value());
}
TEST_F(ObjectTest, IsInSamePackage) {
// Matches
EXPECT_TRUE(Class::IsInSamePackage("Ljava/lang/Object;", "Ljava/lang/Class;"));
EXPECT_TRUE(Class::IsInSamePackage("LFoo;", "LBar;"));
// Mismatches
EXPECT_FALSE(Class::IsInSamePackage("Ljava/lang/Object;", "Ljava/io/File;"));
EXPECT_FALSE(Class::IsInSamePackage("Ljava/lang/Object;", "Ljava/lang/reflect/Method;"));
}
TEST_F(ObjectTest, Clone) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<ObjectArray<Object>> a1(
hs.NewHandle(class_linker_->AllocObjectArray<Object>(soa.Self(), 256)));
size_t s1 = a1->SizeOf();
Object* clone = a1->Clone(soa.Self());
EXPECT_EQ(s1, clone->SizeOf());
EXPECT_TRUE(clone->GetClass() == a1->GetClass());
}
TEST_F(ObjectTest, AllocObjectArray) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<ObjectArray<Object>> oa(
hs.NewHandle(class_linker_->AllocObjectArray<Object>(soa.Self(), 2)));
EXPECT_EQ(2, oa->GetLength());
EXPECT_TRUE(oa->Get(0) == NULL);
EXPECT_TRUE(oa->Get(1) == NULL);
oa->Set<false>(0, oa.Get());
EXPECT_TRUE(oa->Get(0) == oa.Get());
EXPECT_TRUE(oa->Get(1) == NULL);
oa->Set<false>(1, oa.Get());
EXPECT_TRUE(oa->Get(0) == oa.Get());
EXPECT_TRUE(oa->Get(1) == oa.Get());
Class* aioobe = class_linker_->FindSystemClass(soa.Self(),
"Ljava/lang/ArrayIndexOutOfBoundsException;");
EXPECT_TRUE(oa->Get(-1) == NULL);
EXPECT_TRUE(soa.Self()->IsExceptionPending());
EXPECT_EQ(aioobe, soa.Self()->GetException(NULL)->GetClass());
soa.Self()->ClearException();
EXPECT_TRUE(oa->Get(2) == NULL);
EXPECT_TRUE(soa.Self()->IsExceptionPending());
EXPECT_EQ(aioobe, soa.Self()->GetException(NULL)->GetClass());
soa.Self()->ClearException();
ASSERT_TRUE(oa->GetClass() != NULL);
Handle<mirror::Class> klass(hs.NewHandle(oa->GetClass()));
ASSERT_EQ(2U, klass->NumDirectInterfaces());
EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Cloneable;"),
mirror::Class::GetDirectInterface(soa.Self(), klass, 0));
EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "Ljava/io/Serializable;"),
mirror::Class::GetDirectInterface(soa.Self(), klass, 1));
}
TEST_F(ObjectTest, AllocArray) {
ScopedObjectAccess soa(Thread::Current());
Class* c = class_linker_->FindSystemClass(soa.Self(), "[I");
StackHandleScope<1> hs(soa.Self());
Handle<Array> a(
hs.NewHandle(Array::Alloc<true>(soa.Self(), c, 1, c->GetComponentSize(),
Runtime::Current()->GetHeap()->GetCurrentAllocator())));
EXPECT_TRUE(c == a->GetClass());
EXPECT_EQ(1, a->GetLength());
c = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;");
a.Assign(Array::Alloc<true>(soa.Self(), c, 1, c->GetComponentSize(),
Runtime::Current()->GetHeap()->GetCurrentAllocator()));
EXPECT_TRUE(c == a->GetClass());
EXPECT_EQ(1, a->GetLength());
c = class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Object;");
a.Assign(Array::Alloc<true>(soa.Self(), c, 1, c->GetComponentSize(),
Runtime::Current()->GetHeap()->GetCurrentAllocator()));
EXPECT_TRUE(c == a->GetClass());
EXPECT_EQ(1, a->GetLength());
}
TEST_F(ObjectTest, AllocArray_FillUsable) {
ScopedObjectAccess soa(Thread::Current());
Class* c = class_linker_->FindSystemClass(soa.Self(), "[B");
StackHandleScope<1> hs(soa.Self());
Handle<Array> a(
hs.NewHandle(Array::Alloc<true>(soa.Self(), c, 1, c->GetComponentSize(),
Runtime::Current()->GetHeap()->GetCurrentAllocator(), true)));
EXPECT_TRUE(c == a->GetClass());
EXPECT_LE(1, a->GetLength());
c = class_linker_->FindSystemClass(soa.Self(), "[I");
a.Assign(Array::Alloc<true>(soa.Self(), c, 2, c->GetComponentSize(),
Runtime::Current()->GetHeap()->GetCurrentAllocator(), true));
EXPECT_TRUE(c == a->GetClass());
EXPECT_LE(2, a->GetLength());
c = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;");
a.Assign(Array::Alloc<true>(soa.Self(), c, 2, c->GetComponentSize(),
Runtime::Current()->GetHeap()->GetCurrentAllocator(), true));
EXPECT_TRUE(c == a->GetClass());
EXPECT_LE(2, a->GetLength());
c = class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Object;");
a.Assign(Array::Alloc<true>(soa.Self(), c, 2, c->GetComponentSize(),
Runtime::Current()->GetHeap()->GetCurrentAllocator(), true));
EXPECT_TRUE(c == a->GetClass());
EXPECT_LE(2, a->GetLength());
}
template<typename ArrayT>
void TestPrimitiveArray(ClassLinker* cl) {
ScopedObjectAccess soa(Thread::Current());
typedef typename ArrayT::ElementType T;
ArrayT* a = ArrayT::Alloc(soa.Self(), 2);
EXPECT_EQ(2, a->GetLength());
EXPECT_EQ(0, a->Get(0));
EXPECT_EQ(0, a->Get(1));
a->Set(0, T(123));
EXPECT_EQ(T(123), a->Get(0));
EXPECT_EQ(0, a->Get(1));
a->Set(1, T(321));
EXPECT_EQ(T(123), a->Get(0));
EXPECT_EQ(T(321), a->Get(1));
Class* aioobe = cl->FindSystemClass(soa.Self(), "Ljava/lang/ArrayIndexOutOfBoundsException;");
EXPECT_EQ(0, a->Get(-1));
EXPECT_TRUE(soa.Self()->IsExceptionPending());
EXPECT_EQ(aioobe, soa.Self()->GetException(NULL)->GetClass());
soa.Self()->ClearException();
EXPECT_EQ(0, a->Get(2));
EXPECT_TRUE(soa.Self()->IsExceptionPending());
EXPECT_EQ(aioobe, soa.Self()->GetException(NULL)->GetClass());
soa.Self()->ClearException();
}
TEST_F(ObjectTest, PrimitiveArray_Boolean_Alloc) {
TestPrimitiveArray<BooleanArray>(class_linker_);
}
TEST_F(ObjectTest, PrimitiveArray_Byte_Alloc) {
TestPrimitiveArray<ByteArray>(class_linker_);
}
TEST_F(ObjectTest, PrimitiveArray_Char_Alloc) {
TestPrimitiveArray<CharArray>(class_linker_);
}
TEST_F(ObjectTest, PrimitiveArray_Double_Alloc) {
TestPrimitiveArray<DoubleArray>(class_linker_);
}
TEST_F(ObjectTest, PrimitiveArray_Float_Alloc) {
TestPrimitiveArray<FloatArray>(class_linker_);
}
TEST_F(ObjectTest, PrimitiveArray_Int_Alloc) {
TestPrimitiveArray<IntArray>(class_linker_);
}
TEST_F(ObjectTest, PrimitiveArray_Long_Alloc) {
TestPrimitiveArray<LongArray>(class_linker_);
}
TEST_F(ObjectTest, PrimitiveArray_Short_Alloc) {
TestPrimitiveArray<ShortArray>(class_linker_);
}
TEST_F(ObjectTest, CheckAndAllocArrayFromCode) {
// pretend we are trying to call 'new char[3]' from String.toCharArray
ScopedObjectAccess soa(Thread::Current());
Class* java_util_Arrays = class_linker_->FindSystemClass(soa.Self(), "Ljava/util/Arrays;");
ArtMethod* sort = java_util_Arrays->FindDirectMethod("sort", "([I)V");
const DexFile::StringId* string_id = java_lang_dex_file_->FindStringId("[I");
ASSERT_TRUE(string_id != NULL);
const DexFile::TypeId* type_id = java_lang_dex_file_->FindTypeId(
java_lang_dex_file_->GetIndexForStringId(*string_id));
ASSERT_TRUE(type_id != NULL);
uint32_t type_idx = java_lang_dex_file_->GetIndexForTypeId(*type_id);
Object* array = CheckAndAllocArrayFromCodeInstrumented(type_idx, sort, 3, Thread::Current(), false,
Runtime::Current()->GetHeap()->GetCurrentAllocator());
EXPECT_TRUE(array->IsArrayInstance());
EXPECT_EQ(3, array->AsArray()->GetLength());
EXPECT_TRUE(array->GetClass()->IsArrayClass());
EXPECT_TRUE(array->GetClass()->GetComponentType()->IsPrimitive());
}
TEST_F(ObjectTest, CreateMultiArray) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<Class> c(hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "I")));
Handle<IntArray> dims(hs.NewHandle(IntArray::Alloc(soa.Self(), 1)));
dims->Set<false>(0, 1);
Array* multi = Array::CreateMultiArray(soa.Self(), c, dims);
EXPECT_TRUE(multi->GetClass() == class_linker_->FindSystemClass(soa.Self(), "[I"));
EXPECT_EQ(1, multi->GetLength());
dims->Set<false>(0, -1);
multi = Array::CreateMultiArray(soa.Self(), c, dims);
EXPECT_TRUE(soa.Self()->IsExceptionPending());
EXPECT_EQ(PrettyDescriptor(soa.Self()->GetException(NULL)->GetClass()),
"java.lang.NegativeArraySizeException");
soa.Self()->ClearException();
dims.Assign(IntArray::Alloc(soa.Self(), 2));
for (int i = 1; i < 20; ++i) {
for (int j = 0; j < 20; ++j) {
dims->Set<false>(0, i);
dims->Set<false>(1, j);
multi = Array::CreateMultiArray(soa.Self(), c, dims);
EXPECT_TRUE(multi->GetClass() == class_linker_->FindSystemClass(soa.Self(), "[[I"));
EXPECT_EQ(i, multi->GetLength());
for (int k = 0; k < i; ++k) {
Array* outer = multi->AsObjectArray<Array>()->Get(k);
EXPECT_TRUE(outer->GetClass() == class_linker_->FindSystemClass(soa.Self(), "[I"));
EXPECT_EQ(j, outer->GetLength());
}
}
}
}
TEST_F(ObjectTest, StaticFieldFromCode) {
// pretend we are trying to access 'Static.s0' from StaticsFromCode.<clinit>
ScopedObjectAccess soa(Thread::Current());
jobject class_loader = LoadDex("StaticsFromCode");
const DexFile* dex_file = Runtime::Current()->GetCompileTimeClassPath(class_loader)[0];
CHECK(dex_file != NULL);
StackHandleScope<2> hs(soa.Self());
Handle<mirror::ClassLoader> loader(hs.NewHandle(soa.Decode<ClassLoader*>(class_loader)));
Class* klass = class_linker_->FindClass(soa.Self(), "LStaticsFromCode;", loader);
ArtMethod* clinit = klass->FindClassInitializer();
const DexFile::StringId* klass_string_id = dex_file->FindStringId("LStaticsFromCode;");
ASSERT_TRUE(klass_string_id != NULL);
const DexFile::TypeId* klass_type_id = dex_file->FindTypeId(
dex_file->GetIndexForStringId(*klass_string_id));
ASSERT_TRUE(klass_type_id != NULL);
const DexFile::StringId* type_string_id = dex_file->FindStringId("Ljava/lang/Object;");
ASSERT_TRUE(type_string_id != NULL);
const DexFile::TypeId* type_type_id = dex_file->FindTypeId(
dex_file->GetIndexForStringId(*type_string_id));
ASSERT_TRUE(type_type_id != NULL);
const DexFile::StringId* name_str_id = dex_file->FindStringId("s0");
ASSERT_TRUE(name_str_id != NULL);
const DexFile::FieldId* field_id = dex_file->FindFieldId(
*klass_type_id, *name_str_id, *type_type_id);
ASSERT_TRUE(field_id != NULL);
uint32_t field_idx = dex_file->GetIndexForFieldId(*field_id);
ArtField* field = FindFieldFromCode<StaticObjectRead, true>(field_idx, clinit, Thread::Current(),
sizeof(HeapReference<Object>));
Object* s0 = field->GetObj(klass);
EXPECT_TRUE(s0 != NULL);
Handle<CharArray> char_array(hs.NewHandle(CharArray::Alloc(soa.Self(), 0)));
field->SetObj<false>(field->GetDeclaringClass(), char_array.Get());
EXPECT_EQ(char_array.Get(), field->GetObj(klass));
field->SetObj<false>(field->GetDeclaringClass(), NULL);
EXPECT_EQ(NULL, field->GetObj(klass));
// TODO: more exhaustive tests of all 6 cases of ArtField::*FromCode
}
TEST_F(ObjectTest, String) {
ScopedObjectAccess soa(Thread::Current());
// Test the empty string.
AssertString(0, "", "", 0);
// Test one-byte characters.
AssertString(1, " ", "\x00\x20", 0x20);
AssertString(1, "", "\x00\x00", 0);
AssertString(1, "\x7f", "\x00\x7f", 0x7f);
AssertString(2, "hi", "\x00\x68\x00\x69", (31 * 0x68) + 0x69);
// Test two-byte characters.
AssertString(1, "\xc2\x80", "\x00\x80", 0x80);
AssertString(1, "\xd9\xa6", "\x06\x66", 0x0666);
AssertString(1, "\xdf\xbf", "\x07\xff", 0x07ff);
AssertString(3, "h\xd9\xa6i", "\x00\x68\x06\x66\x00\x69", (31 * ((31 * 0x68) + 0x0666)) + 0x69);
// Test three-byte characters.
AssertString(1, "\xe0\xa0\x80", "\x08\x00", 0x0800);
AssertString(1, "\xe1\x88\xb4", "\x12\x34", 0x1234);
AssertString(1, "\xef\xbf\xbf", "\xff\xff", 0xffff);
AssertString(3, "h\xe1\x88\xb4i", "\x00\x68\x12\x34\x00\x69", (31 * ((31 * 0x68) + 0x1234)) + 0x69);
}
TEST_F(ObjectTest, StringEqualsUtf8) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<String> string(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android")));
EXPECT_TRUE(string->Equals("android"));
EXPECT_FALSE(string->Equals("Android"));
EXPECT_FALSE(string->Equals("ANDROID"));
EXPECT_FALSE(string->Equals(""));
EXPECT_FALSE(string->Equals("and"));
EXPECT_FALSE(string->Equals("androids"));
Handle<String> empty(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "")));
EXPECT_TRUE(empty->Equals(""));
EXPECT_FALSE(empty->Equals("a"));
}
TEST_F(ObjectTest, StringEquals) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<3> hs(soa.Self());
Handle<String> string(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android")));
Handle<String> string_2(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android")));
EXPECT_TRUE(string->Equals(string_2.Get()));
EXPECT_FALSE(string->Equals("Android"));
EXPECT_FALSE(string->Equals("ANDROID"));
EXPECT_FALSE(string->Equals(""));
EXPECT_FALSE(string->Equals("and"));
EXPECT_FALSE(string->Equals("androids"));
Handle<String> empty(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "")));
EXPECT_TRUE(empty->Equals(""));
EXPECT_FALSE(empty->Equals("a"));
}
TEST_F(ObjectTest, StringCompareTo) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<5> hs(soa.Self());
Handle<String> string(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android")));
Handle<String> string_2(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android")));
Handle<String> string_3(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "Android")));
Handle<String> string_4(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "and")));
Handle<String> string_5(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "")));
EXPECT_EQ(0, string->CompareTo(string_2.Get()));
EXPECT_LT(0, string->CompareTo(string_3.Get()));
EXPECT_GT(0, string_3->CompareTo(string.Get()));
EXPECT_LT(0, string->CompareTo(string_4.Get()));
EXPECT_GT(0, string_4->CompareTo(string.Get()));
EXPECT_LT(0, string->CompareTo(string_5.Get()));
EXPECT_GT(0, string_5->CompareTo(string.Get()));
}
TEST_F(ObjectTest, StringLength) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<1> hs(soa.Self());
Handle<String> string(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "android")));
EXPECT_EQ(string->GetLength(), 7);
EXPECT_EQ(string->GetUtfLength(), 7);
string->SetOffset(2);
string->SetCount(5);
EXPECT_TRUE(string->Equals("droid"));
EXPECT_EQ(string->GetLength(), 5);
EXPECT_EQ(string->GetUtfLength(), 5);
}
TEST_F(ObjectTest, DescriptorCompare) {
// Two classloaders conflicts in compile_time_class_paths_.
ScopedObjectAccess soa(Thread::Current());
ClassLinker* linker = class_linker_;
jobject jclass_loader_1 = LoadDex("ProtoCompare");
jobject jclass_loader_2 = LoadDex("ProtoCompare2");
StackHandleScope<4> hs(soa.Self());
Handle<ClassLoader> class_loader_1(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader_1)));
Handle<ClassLoader> class_loader_2(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader_2)));
Class* klass1 = linker->FindClass(soa.Self(), "LProtoCompare;", class_loader_1);
ASSERT_TRUE(klass1 != NULL);
Class* klass2 = linker->FindClass(soa.Self(), "LProtoCompare2;", class_loader_2);
ASSERT_TRUE(klass2 != NULL);
ArtMethod* m1_1 = klass1->GetVirtualMethod(0);
EXPECT_STREQ(m1_1->GetName(), "m1");
ArtMethod* m2_1 = klass1->GetVirtualMethod(1);
EXPECT_STREQ(m2_1->GetName(), "m2");
ArtMethod* m3_1 = klass1->GetVirtualMethod(2);
EXPECT_STREQ(m3_1->GetName(), "m3");
ArtMethod* m4_1 = klass1->GetVirtualMethod(3);
EXPECT_STREQ(m4_1->GetName(), "m4");
ArtMethod* m1_2 = klass2->GetVirtualMethod(0);
EXPECT_STREQ(m1_2->GetName(), "m1");
ArtMethod* m2_2 = klass2->GetVirtualMethod(1);
EXPECT_STREQ(m2_2->GetName(), "m2");
ArtMethod* m3_2 = klass2->GetVirtualMethod(2);
EXPECT_STREQ(m3_2->GetName(), "m3");
ArtMethod* m4_2 = klass2->GetVirtualMethod(3);
EXPECT_STREQ(m4_2->GetName(), "m4");
MethodHelper mh(hs.NewHandle(m1_1));
MethodHelper mh2(hs.NewHandle(m1_2));
EXPECT_TRUE(mh.HasSameNameAndSignature(&mh2));
EXPECT_TRUE(mh2.HasSameNameAndSignature(&mh));
mh.ChangeMethod(m2_1);
mh2.ChangeMethod(m2_2);
EXPECT_TRUE(mh.HasSameNameAndSignature(&mh2));
EXPECT_TRUE(mh2.HasSameNameAndSignature(&mh));
mh.ChangeMethod(m3_1);
mh2.ChangeMethod(m3_2);
EXPECT_TRUE(mh.HasSameNameAndSignature(&mh2));
EXPECT_TRUE(mh2.HasSameNameAndSignature(&mh));
mh.ChangeMethod(m4_1);
mh2.ChangeMethod(m4_2);
EXPECT_TRUE(mh.HasSameNameAndSignature(&mh2));
EXPECT_TRUE(mh2.HasSameNameAndSignature(&mh));
}
TEST_F(ObjectTest, StringHashCode) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<3> hs(soa.Self());
Handle<String> empty(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "")));
Handle<String> A(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "A")));
Handle<String> ABC(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "ABC")));
EXPECT_EQ(0, empty->GetHashCode());
EXPECT_EQ(65, A->GetHashCode());
EXPECT_EQ(64578, ABC->GetHashCode());
}
TEST_F(ObjectTest, InstanceOf) {
ScopedObjectAccess soa(Thread::Current());
jobject jclass_loader = LoadDex("XandY");
StackHandleScope<3> hs(soa.Self());
Handle<ClassLoader> class_loader(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader)));
Class* X = class_linker_->FindClass(soa.Self(), "LX;", class_loader);
Class* Y = class_linker_->FindClass(soa.Self(), "LY;", class_loader);
ASSERT_TRUE(X != NULL);
ASSERT_TRUE(Y != NULL);
Handle<Object> x(hs.NewHandle(X->AllocObject(soa.Self())));
Handle<Object> y(hs.NewHandle(Y->AllocObject(soa.Self())));
ASSERT_TRUE(x.Get() != NULL);
ASSERT_TRUE(y.Get() != NULL);
EXPECT_TRUE(x->InstanceOf(X));
EXPECT_FALSE(x->InstanceOf(Y));
EXPECT_TRUE(y->InstanceOf(X));
EXPECT_TRUE(y->InstanceOf(Y));
Class* java_lang_Class = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Class;");
Class* Object_array_class = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;");
EXPECT_FALSE(java_lang_Class->InstanceOf(Object_array_class));
EXPECT_TRUE(Object_array_class->InstanceOf(java_lang_Class));
// All array classes implement Cloneable and Serializable.
Object* array = ObjectArray<Object>::Alloc(soa.Self(), Object_array_class, 1);
Class* java_lang_Cloneable = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Cloneable;");
Class* java_io_Serializable = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/Serializable;");
EXPECT_TRUE(array->InstanceOf(java_lang_Cloneable));
EXPECT_TRUE(array->InstanceOf(java_io_Serializable));
}
TEST_F(ObjectTest, IsAssignableFrom) {
ScopedObjectAccess soa(Thread::Current());
jobject jclass_loader = LoadDex("XandY");
StackHandleScope<1> hs(soa.Self());
Handle<ClassLoader> class_loader(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader)));
Class* X = class_linker_->FindClass(soa.Self(), "LX;", class_loader);
Class* Y = class_linker_->FindClass(soa.Self(), "LY;", class_loader);
EXPECT_TRUE(X->IsAssignableFrom(X));
EXPECT_TRUE(X->IsAssignableFrom(Y));
EXPECT_FALSE(Y->IsAssignableFrom(X));
EXPECT_TRUE(Y->IsAssignableFrom(Y));
// class final String implements CharSequence, ..
Class* string = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/String;");
Class* charseq = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/CharSequence;");
// Can String be assigned to CharSequence without a cast?
EXPECT_TRUE(charseq->IsAssignableFrom(string));
// Can CharSequence be assigned to String without a cast?
EXPECT_FALSE(string->IsAssignableFrom(charseq));
// Primitive types are only assignable to themselves
const char* prims = "ZBCSIJFD";
Class* prim_types[strlen(prims)];
for (size_t i = 0; i < strlen(prims); i++) {
prim_types[i] = class_linker_->FindPrimitiveClass(prims[i]);
}
for (size_t i = 0; i < strlen(prims); i++) {
for (size_t j = 0; i < strlen(prims); i++) {
if (i == j) {
EXPECT_TRUE(prim_types[i]->IsAssignableFrom(prim_types[j]));
} else {
EXPECT_FALSE(prim_types[i]->IsAssignableFrom(prim_types[j]));
}
}
}
}
TEST_F(ObjectTest, IsAssignableFromArray) {
ScopedObjectAccess soa(Thread::Current());
jobject jclass_loader = LoadDex("XandY");
StackHandleScope<1> hs(soa.Self());
Handle<ClassLoader> class_loader(hs.NewHandle(soa.Decode<ClassLoader*>(jclass_loader)));
Class* X = class_linker_->FindClass(soa.Self(), "LX;", class_loader);
Class* Y = class_linker_->FindClass(soa.Self(), "LY;", class_loader);
ASSERT_TRUE(X != NULL);
ASSERT_TRUE(Y != NULL);
Class* YA = class_linker_->FindClass(soa.Self(), "[LY;", class_loader);
Class* YAA = class_linker_->FindClass(soa.Self(), "[[LY;", class_loader);
ASSERT_TRUE(YA != NULL);
ASSERT_TRUE(YAA != NULL);
Class* XAA = class_linker_->FindClass(soa.Self(), "[[LX;", class_loader);
ASSERT_TRUE(XAA != NULL);
Class* O = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;");
Class* OA = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;");
Class* OAA = class_linker_->FindSystemClass(soa.Self(), "[[Ljava/lang/Object;");
Class* OAAA = class_linker_->FindSystemClass(soa.Self(), "[[[Ljava/lang/Object;");
ASSERT_TRUE(O != NULL);
ASSERT_TRUE(OA != NULL);
ASSERT_TRUE(OAA != NULL);
ASSERT_TRUE(OAAA != NULL);
Class* S = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/Serializable;");
Class* SA = class_linker_->FindSystemClass(soa.Self(), "[Ljava/io/Serializable;");
Class* SAA = class_linker_->FindSystemClass(soa.Self(), "[[Ljava/io/Serializable;");
ASSERT_TRUE(S != NULL);
ASSERT_TRUE(SA != NULL);
ASSERT_TRUE(SAA != NULL);
Class* IA = class_linker_->FindSystemClass(soa.Self(), "[I");
ASSERT_TRUE(IA != NULL);
EXPECT_TRUE(YAA->IsAssignableFrom(YAA)); // identity
EXPECT_TRUE(XAA->IsAssignableFrom(YAA)); // element superclass
EXPECT_FALSE(YAA->IsAssignableFrom(XAA));
EXPECT_FALSE(Y->IsAssignableFrom(YAA));
EXPECT_FALSE(YA->IsAssignableFrom(YAA));
EXPECT_TRUE(O->IsAssignableFrom(YAA)); // everything is an Object
EXPECT_TRUE(OA->IsAssignableFrom(YAA));
EXPECT_TRUE(OAA->IsAssignableFrom(YAA));
EXPECT_TRUE(S->IsAssignableFrom(YAA)); // all arrays are Serializable
EXPECT_TRUE(SA->IsAssignableFrom(YAA));
EXPECT_FALSE(SAA->IsAssignableFrom(YAA)); // unless Y was Serializable
EXPECT_FALSE(IA->IsAssignableFrom(OA));
EXPECT_FALSE(OA->IsAssignableFrom(IA));
EXPECT_TRUE(O->IsAssignableFrom(IA));
}
TEST_F(ObjectTest, FindInstanceField) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<1> hs(soa.Self());
Handle<String> s(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "ABC")));
ASSERT_TRUE(s.Get() != NULL);
Class* c = s->GetClass();
ASSERT_TRUE(c != NULL);
// Wrong type.
EXPECT_TRUE(c->FindDeclaredInstanceField("count", "J") == NULL);
EXPECT_TRUE(c->FindInstanceField("count", "J") == NULL);
// Wrong name.
EXPECT_TRUE(c->FindDeclaredInstanceField("Count", "I") == NULL);
EXPECT_TRUE(c->FindInstanceField("Count", "I") == NULL);
// Right name and type.
ArtField* f1 = c->FindDeclaredInstanceField("count", "I");
ArtField* f2 = c->FindInstanceField("count", "I");
EXPECT_TRUE(f1 != NULL);
EXPECT_TRUE(f2 != NULL);
EXPECT_EQ(f1, f2);
// TODO: check that s.count == 3.
// Ensure that we handle superclass fields correctly...
c = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/StringBuilder;");
ASSERT_TRUE(c != NULL);
// No StringBuilder.count...
EXPECT_TRUE(c->FindDeclaredInstanceField("count", "I") == NULL);
// ...but there is an AbstractStringBuilder.count.
EXPECT_TRUE(c->FindInstanceField("count", "I") != NULL);
}
TEST_F(ObjectTest, FindStaticField) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<4> hs(soa.Self());
Handle<String> s(hs.NewHandle(String::AllocFromModifiedUtf8(soa.Self(), "ABC")));
ASSERT_TRUE(s.Get() != NULL);
Handle<Class> c(hs.NewHandle(s->GetClass()));
ASSERT_TRUE(c.Get() != NULL);
// Wrong type.
EXPECT_TRUE(c->FindDeclaredStaticField("CASE_INSENSITIVE_ORDER", "I") == NULL);
EXPECT_TRUE(mirror::Class::FindStaticField(soa.Self(), c, "CASE_INSENSITIVE_ORDER", "I") == NULL);
// Wrong name.
EXPECT_TRUE(c->FindDeclaredStaticField("cASE_INSENSITIVE_ORDER", "Ljava/util/Comparator;") == NULL);
EXPECT_TRUE(
mirror::Class::FindStaticField(soa.Self(), c, "cASE_INSENSITIVE_ORDER",
"Ljava/util/Comparator;") == NULL);
// Right name and type.
Handle<ArtField> f1(hs.NewHandle(
c->FindDeclaredStaticField("CASE_INSENSITIVE_ORDER", "Ljava/util/Comparator;")));
Handle<ArtField> f2(hs.NewHandle(
mirror::Class::FindStaticField(soa.Self(), c, "CASE_INSENSITIVE_ORDER",
"Ljava/util/Comparator;")));
EXPECT_TRUE(f1.Get() != NULL);
EXPECT_TRUE(f2.Get() != NULL);
EXPECT_EQ(f1.Get(), f2.Get());
// TODO: test static fields via superclasses.
// TODO: test static fields via interfaces.
// TODO: test that interfaces trump superclasses.
}
TEST_F(ObjectTest, IdentityHashCode) {
// Regression test for b/19046417 which had an infinite loop if the
// (seed & LockWord::kHashMask) == 0. seed 0 triggered the infinite loop since we did the check
// before the CAS which resulted in the same seed the next loop iteration.
mirror::Object::SetHashCodeSeed(0);
int32_t hash_code = mirror::Object::GenerateIdentityHashCode();
EXPECT_NE(hash_code, 0);
}
} // namespace mirror
} // namespace art
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