/*
 * 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_verifier.h"

#include <stdio.h>

#include "UniquePtr.h"
#include "class_linker.h"
#include "common_test.h"
#include "dex_file.h"

namespace art {
namespace verifier {

class DexVerifierTest : public CommonTest {
 protected:
  void VerifyClass(ClassLoader* class_loader, const std::string& descriptor) {
    ASSERT_TRUE(descriptor != NULL);
    Class* klass = class_linker_->FindSystemClass(descriptor.c_str());

    // Verify the class
    std::string error_msg;
    ASSERT_TRUE(DexVerifier::VerifyClass(klass, error_msg)) << error_msg;
  }

  void VerifyDexFile(const DexFile* dex, ClassLoader* class_loader) {
    ASSERT_TRUE(dex != NULL);

    // Verify all the classes defined in this file
    for (size_t i = 0; i < dex->NumClassDefs(); i++) {
      const DexFile::ClassDef& class_def = dex->GetClassDef(i);
      const char* descriptor = dex->GetClassDescriptor(class_def);
      VerifyClass(class_loader, descriptor);
    }
  }
};

TEST_F(DexVerifierTest, LibCore) {
  VerifyDexFile(java_lang_dex_file_.get(), NULL);
}

TEST_F(DexVerifierTest, IntMath) {
  SirtRef<ClassLoader> class_loader(LoadDex("IntMath"));
  Class* klass = class_linker_->FindClass("LIntMath;", class_loader.get());
  std::string error_msg;
  ASSERT_TRUE(DexVerifier::VerifyClass(klass, error_msg)) << error_msg;
}

TEST_F(DexVerifierTest, RegTypes_Primitives) {
  RegTypeCache cache;

  const RegType& bool_reg_type = cache.Boolean();
  EXPECT_FALSE(bool_reg_type.IsUnknown());
  EXPECT_FALSE(bool_reg_type.IsConflict());
  EXPECT_FALSE(bool_reg_type.IsZero());
  EXPECT_FALSE(bool_reg_type.IsOne());
  EXPECT_FALSE(bool_reg_type.IsLongConstant());
  EXPECT_TRUE(bool_reg_type.IsBoolean());
  EXPECT_FALSE(bool_reg_type.IsByte());
  EXPECT_FALSE(bool_reg_type.IsChar());
  EXPECT_FALSE(bool_reg_type.IsShort());
  EXPECT_FALSE(bool_reg_type.IsInteger());
  EXPECT_FALSE(bool_reg_type.IsLong());
  EXPECT_FALSE(bool_reg_type.IsFloat());
  EXPECT_FALSE(bool_reg_type.IsDouble());
  EXPECT_FALSE(bool_reg_type.IsReference());
  EXPECT_FALSE(bool_reg_type.IsLowHalf());
  EXPECT_FALSE(bool_reg_type.IsHighHalf());
  EXPECT_FALSE(bool_reg_type.IsLongOrDoubleTypes());
  EXPECT_FALSE(bool_reg_type.IsReferenceTypes());
  EXPECT_TRUE(bool_reg_type.IsCategory1Types());
  EXPECT_FALSE(bool_reg_type.IsCategory2Types());
  EXPECT_TRUE(bool_reg_type.IsBooleanTypes());
  EXPECT_TRUE(bool_reg_type.IsByteTypes());
  EXPECT_TRUE(bool_reg_type.IsShortTypes());
  EXPECT_TRUE(bool_reg_type.IsCharTypes());
  EXPECT_TRUE(bool_reg_type.IsIntegralTypes());
  EXPECT_FALSE(bool_reg_type.IsFloatTypes());
  EXPECT_FALSE(bool_reg_type.IsLongTypes());
  EXPECT_FALSE(bool_reg_type.IsDoubleTypes());
  EXPECT_TRUE(bool_reg_type.IsArrayIndexTypes());

  const RegType& byte_reg_type = cache.Byte();
  EXPECT_FALSE(byte_reg_type.IsUnknown());
  EXPECT_FALSE(byte_reg_type.IsConflict());
  EXPECT_FALSE(byte_reg_type.IsZero());
  EXPECT_FALSE(byte_reg_type.IsOne());
  EXPECT_FALSE(byte_reg_type.IsLongConstant());
  EXPECT_FALSE(byte_reg_type.IsBoolean());
  EXPECT_TRUE(byte_reg_type.IsByte());
  EXPECT_FALSE(byte_reg_type.IsChar());
  EXPECT_FALSE(byte_reg_type.IsShort());
  EXPECT_FALSE(byte_reg_type.IsInteger());
  EXPECT_FALSE(byte_reg_type.IsLong());
  EXPECT_FALSE(byte_reg_type.IsFloat());
  EXPECT_FALSE(byte_reg_type.IsDouble());
  EXPECT_FALSE(byte_reg_type.IsReference());
  EXPECT_FALSE(byte_reg_type.IsLowHalf());
  EXPECT_FALSE(byte_reg_type.IsHighHalf());
  EXPECT_FALSE(byte_reg_type.IsLongOrDoubleTypes());
  EXPECT_FALSE(byte_reg_type.IsReferenceTypes());
  EXPECT_TRUE(byte_reg_type.IsCategory1Types());
  EXPECT_FALSE(byte_reg_type.IsCategory2Types());
  EXPECT_FALSE(byte_reg_type.IsBooleanTypes());
  EXPECT_TRUE(byte_reg_type.IsByteTypes());
  EXPECT_TRUE(byte_reg_type.IsShortTypes());
  EXPECT_FALSE(byte_reg_type.IsCharTypes());
  EXPECT_TRUE(byte_reg_type.IsIntegralTypes());
  EXPECT_FALSE(byte_reg_type.IsFloatTypes());
  EXPECT_FALSE(byte_reg_type.IsLongTypes());
  EXPECT_FALSE(byte_reg_type.IsDoubleTypes());
  EXPECT_TRUE(byte_reg_type.IsArrayIndexTypes());

  const RegType& char_reg_type = cache.Char();
  EXPECT_FALSE(char_reg_type.IsUnknown());
  EXPECT_FALSE(char_reg_type.IsConflict());
  EXPECT_FALSE(char_reg_type.IsZero());
  EXPECT_FALSE(char_reg_type.IsOne());
  EXPECT_FALSE(char_reg_type.IsLongConstant());
  EXPECT_FALSE(char_reg_type.IsBoolean());
  EXPECT_FALSE(char_reg_type.IsByte());
  EXPECT_TRUE(char_reg_type.IsChar());
  EXPECT_FALSE(char_reg_type.IsShort());
  EXPECT_FALSE(char_reg_type.IsInteger());
  EXPECT_FALSE(char_reg_type.IsLong());
  EXPECT_FALSE(char_reg_type.IsFloat());
  EXPECT_FALSE(char_reg_type.IsDouble());
  EXPECT_FALSE(char_reg_type.IsReference());
  EXPECT_FALSE(char_reg_type.IsLowHalf());
  EXPECT_FALSE(char_reg_type.IsHighHalf());
  EXPECT_FALSE(char_reg_type.IsLongOrDoubleTypes());
  EXPECT_FALSE(char_reg_type.IsReferenceTypes());
  EXPECT_TRUE(char_reg_type.IsCategory1Types());
  EXPECT_FALSE(char_reg_type.IsCategory2Types());
  EXPECT_FALSE(char_reg_type.IsBooleanTypes());
  EXPECT_FALSE(char_reg_type.IsByteTypes());
  EXPECT_FALSE(char_reg_type.IsShortTypes());
  EXPECT_TRUE(char_reg_type.IsCharTypes());
  EXPECT_TRUE(char_reg_type.IsIntegralTypes());
  EXPECT_FALSE(char_reg_type.IsFloatTypes());
  EXPECT_FALSE(char_reg_type.IsLongTypes());
  EXPECT_FALSE(char_reg_type.IsDoubleTypes());
  EXPECT_TRUE(char_reg_type.IsArrayIndexTypes());

  const RegType& short_reg_type = cache.Short();
  EXPECT_FALSE(short_reg_type.IsUnknown());
  EXPECT_FALSE(short_reg_type.IsConflict());
  EXPECT_FALSE(short_reg_type.IsZero());
  EXPECT_FALSE(short_reg_type.IsOne());
  EXPECT_FALSE(short_reg_type.IsLongConstant());
  EXPECT_FALSE(short_reg_type.IsBoolean());
  EXPECT_FALSE(short_reg_type.IsByte());
  EXPECT_FALSE(short_reg_type.IsChar());
  EXPECT_TRUE(short_reg_type.IsShort());
  EXPECT_FALSE(short_reg_type.IsInteger());
  EXPECT_FALSE(short_reg_type.IsLong());
  EXPECT_FALSE(short_reg_type.IsFloat());
  EXPECT_FALSE(short_reg_type.IsDouble());
  EXPECT_FALSE(short_reg_type.IsReference());
  EXPECT_FALSE(short_reg_type.IsLowHalf());
  EXPECT_FALSE(short_reg_type.IsHighHalf());
  EXPECT_FALSE(short_reg_type.IsLongOrDoubleTypes());
  EXPECT_FALSE(short_reg_type.IsReferenceTypes());
  EXPECT_TRUE(short_reg_type.IsCategory1Types());
  EXPECT_FALSE(short_reg_type.IsCategory2Types());
  EXPECT_FALSE(short_reg_type.IsBooleanTypes());
  EXPECT_FALSE(short_reg_type.IsByteTypes());
  EXPECT_TRUE(short_reg_type.IsShortTypes());
  EXPECT_FALSE(short_reg_type.IsCharTypes());
  EXPECT_TRUE(short_reg_type.IsIntegralTypes());
  EXPECT_FALSE(short_reg_type.IsFloatTypes());
  EXPECT_FALSE(short_reg_type.IsLongTypes());
  EXPECT_FALSE(short_reg_type.IsDoubleTypes());
  EXPECT_TRUE(short_reg_type.IsArrayIndexTypes());

  const RegType& int_reg_type = cache.Integer();
  EXPECT_FALSE(int_reg_type.IsUnknown());
  EXPECT_FALSE(int_reg_type.IsConflict());
  EXPECT_FALSE(int_reg_type.IsZero());
  EXPECT_FALSE(int_reg_type.IsOne());
  EXPECT_FALSE(int_reg_type.IsLongConstant());
  EXPECT_FALSE(int_reg_type.IsBoolean());
  EXPECT_FALSE(int_reg_type.IsByte());
  EXPECT_FALSE(int_reg_type.IsChar());
  EXPECT_FALSE(int_reg_type.IsShort());
  EXPECT_TRUE(int_reg_type.IsInteger());
  EXPECT_FALSE(int_reg_type.IsLong());
  EXPECT_FALSE(int_reg_type.IsFloat());
  EXPECT_FALSE(int_reg_type.IsDouble());
  EXPECT_FALSE(int_reg_type.IsReference());
  EXPECT_FALSE(int_reg_type.IsLowHalf());
  EXPECT_FALSE(int_reg_type.IsHighHalf());
  EXPECT_FALSE(int_reg_type.IsLongOrDoubleTypes());
  EXPECT_FALSE(int_reg_type.IsReferenceTypes());
  EXPECT_TRUE(int_reg_type.IsCategory1Types());
  EXPECT_FALSE(int_reg_type.IsCategory2Types());
  EXPECT_FALSE(int_reg_type.IsBooleanTypes());
  EXPECT_FALSE(int_reg_type.IsByteTypes());
  EXPECT_FALSE(int_reg_type.IsShortTypes());
  EXPECT_FALSE(int_reg_type.IsCharTypes());
  EXPECT_TRUE(int_reg_type.IsIntegralTypes());
  EXPECT_FALSE(int_reg_type.IsFloatTypes());
  EXPECT_FALSE(int_reg_type.IsLongTypes());
  EXPECT_FALSE(int_reg_type.IsDoubleTypes());
  EXPECT_TRUE(int_reg_type.IsArrayIndexTypes());

  const RegType& long_reg_type = cache.Long();
  EXPECT_FALSE(long_reg_type.IsUnknown());
  EXPECT_FALSE(long_reg_type.IsConflict());
  EXPECT_FALSE(long_reg_type.IsZero());
  EXPECT_FALSE(long_reg_type.IsOne());
  EXPECT_FALSE(long_reg_type.IsLongConstant());
  EXPECT_FALSE(long_reg_type.IsBoolean());
  EXPECT_FALSE(long_reg_type.IsByte());
  EXPECT_FALSE(long_reg_type.IsChar());
  EXPECT_FALSE(long_reg_type.IsShort());
  EXPECT_FALSE(long_reg_type.IsInteger());
  EXPECT_TRUE(long_reg_type.IsLong());
  EXPECT_FALSE(long_reg_type.IsFloat());
  EXPECT_FALSE(long_reg_type.IsDouble());
  EXPECT_FALSE(long_reg_type.IsReference());
  EXPECT_TRUE(long_reg_type.IsLowHalf());
  EXPECT_FALSE(long_reg_type.IsHighHalf());
  EXPECT_TRUE(long_reg_type.IsLongOrDoubleTypes());
  EXPECT_FALSE(long_reg_type.IsReferenceTypes());
  EXPECT_FALSE(long_reg_type.IsCategory1Types());
  EXPECT_TRUE(long_reg_type.IsCategory2Types());
  EXPECT_FALSE(long_reg_type.IsBooleanTypes());
  EXPECT_FALSE(long_reg_type.IsByteTypes());
  EXPECT_FALSE(long_reg_type.IsShortTypes());
  EXPECT_FALSE(long_reg_type.IsCharTypes());
  EXPECT_FALSE(long_reg_type.IsIntegralTypes());
  EXPECT_FALSE(long_reg_type.IsFloatTypes());
  EXPECT_TRUE(long_reg_type.IsLongTypes());
  EXPECT_FALSE(long_reg_type.IsDoubleTypes());
  EXPECT_FALSE(long_reg_type.IsArrayIndexTypes());

  const RegType& float_reg_type = cache.Float();
  EXPECT_FALSE(float_reg_type.IsUnknown());
  EXPECT_FALSE(float_reg_type.IsConflict());
  EXPECT_FALSE(float_reg_type.IsZero());
  EXPECT_FALSE(float_reg_type.IsOne());
  EXPECT_FALSE(float_reg_type.IsLongConstant());
  EXPECT_FALSE(float_reg_type.IsBoolean());
  EXPECT_FALSE(float_reg_type.IsByte());
  EXPECT_FALSE(float_reg_type.IsChar());
  EXPECT_FALSE(float_reg_type.IsShort());
  EXPECT_FALSE(float_reg_type.IsInteger());
  EXPECT_FALSE(float_reg_type.IsLong());
  EXPECT_TRUE(float_reg_type.IsFloat());
  EXPECT_FALSE(float_reg_type.IsDouble());
  EXPECT_FALSE(float_reg_type.IsReference());
  EXPECT_FALSE(float_reg_type.IsLowHalf());
  EXPECT_FALSE(float_reg_type.IsHighHalf());
  EXPECT_FALSE(float_reg_type.IsLongOrDoubleTypes());
  EXPECT_FALSE(float_reg_type.IsReferenceTypes());
  EXPECT_TRUE(float_reg_type.IsCategory1Types());
  EXPECT_FALSE(float_reg_type.IsCategory2Types());
  EXPECT_FALSE(float_reg_type.IsBooleanTypes());
  EXPECT_FALSE(float_reg_type.IsByteTypes());
  EXPECT_FALSE(float_reg_type.IsShortTypes());
  EXPECT_FALSE(float_reg_type.IsCharTypes());
  EXPECT_FALSE(float_reg_type.IsIntegralTypes());
  EXPECT_TRUE(float_reg_type.IsFloatTypes());
  EXPECT_FALSE(float_reg_type.IsLongTypes());
  EXPECT_FALSE(float_reg_type.IsDoubleTypes());
  EXPECT_FALSE(float_reg_type.IsArrayIndexTypes());

  const RegType& double_reg_type = cache.Double();
  EXPECT_FALSE(double_reg_type.IsUnknown());
  EXPECT_FALSE(double_reg_type.IsConflict());
  EXPECT_FALSE(double_reg_type.IsZero());
  EXPECT_FALSE(double_reg_type.IsOne());
  EXPECT_FALSE(double_reg_type.IsLongConstant());
  EXPECT_FALSE(double_reg_type.IsBoolean());
  EXPECT_FALSE(double_reg_type.IsByte());
  EXPECT_FALSE(double_reg_type.IsChar());
  EXPECT_FALSE(double_reg_type.IsShort());
  EXPECT_FALSE(double_reg_type.IsInteger());
  EXPECT_FALSE(double_reg_type.IsLong());
  EXPECT_FALSE(double_reg_type.IsFloat());
  EXPECT_TRUE(double_reg_type.IsDouble());
  EXPECT_FALSE(double_reg_type.IsReference());
  EXPECT_TRUE(double_reg_type.IsLowHalf());
  EXPECT_FALSE(double_reg_type.IsHighHalf());
  EXPECT_TRUE(double_reg_type.IsLongOrDoubleTypes());
  EXPECT_FALSE(double_reg_type.IsReferenceTypes());
  EXPECT_FALSE(double_reg_type.IsCategory1Types());
  EXPECT_TRUE(double_reg_type.IsCategory2Types());
  EXPECT_FALSE(double_reg_type.IsBooleanTypes());
  EXPECT_FALSE(double_reg_type.IsByteTypes());
  EXPECT_FALSE(double_reg_type.IsShortTypes());
  EXPECT_FALSE(double_reg_type.IsCharTypes());
  EXPECT_FALSE(double_reg_type.IsIntegralTypes());
  EXPECT_FALSE(double_reg_type.IsFloatTypes());
  EXPECT_FALSE(double_reg_type.IsLongTypes());
  EXPECT_TRUE(double_reg_type.IsDoubleTypes());
  EXPECT_FALSE(double_reg_type.IsArrayIndexTypes());
}

// TODO: test reference RegType
// TODO: test constant RegType
// TODO: test VerifyAgainst
// TODO: test Merge
// TODO: test Equals
// TODO: test ClassJoin

}  // namespace verifier
}  // namespace art