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/*
* Copyright (C) 2021 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.
*/
#ifndef ART_LIBNATIVELOADER_NATIVE_LOADER_TEST_H_
#define ART_LIBNATIVELOADER_NATIVE_LOADER_TEST_H_
#include <string.h>
#include <memory>
#include "gmock/gmock.h"
#include "jni.h"
namespace android {
namespace nativeloader {
class MockJni {
public:
virtual ~MockJni() {}
MOCK_METHOD1(JniObject_getParent, const char*(const char*));
};
static std::unique_ptr<MockJni> jni_mock;
// A very simple JNI mock.
// jstring is a pointer to utf8 char array. We don't need utf16 char here.
// jobject, jclass, and jmethodID are also a pointer to utf8 char array
// Only a few JNI methods that are actually used in libnativeloader are mocked.
JNINativeInterface* CreateJNINativeInterface() {
JNINativeInterface* inf = new JNINativeInterface();
memset(inf, 0, sizeof(JNINativeInterface));
inf->GetStringUTFChars = [](JNIEnv*, jstring s, jboolean*) -> const char* {
return reinterpret_cast<const char*>(s);
};
inf->ReleaseStringUTFChars = [](JNIEnv*, jstring, const char*) -> void { return; };
inf->NewStringUTF = [](JNIEnv*, const char* bytes) -> jstring {
return reinterpret_cast<jstring>(const_cast<char*>(bytes));
};
inf->FindClass = [](JNIEnv*, const char* name) -> jclass {
return reinterpret_cast<jclass>(const_cast<char*>(name));
};
inf->CallObjectMethodV = [](JNIEnv*, jobject obj, jmethodID mid, va_list) -> jobject {
if (strcmp("getParent", reinterpret_cast<const char*>(mid)) == 0) {
// JniObject_getParent can be a valid jobject or nullptr if there is
// no parent classloader.
const char* ret = jni_mock->JniObject_getParent(reinterpret_cast<const char*>(obj));
return reinterpret_cast<jobject>(const_cast<char*>(ret));
}
return nullptr;
};
inf->GetMethodID = [](JNIEnv*, jclass, const char* name, const char*) -> jmethodID {
return reinterpret_cast<jmethodID>(const_cast<char*>(name));
};
inf->NewWeakGlobalRef = [](JNIEnv*, jobject obj) -> jobject { return obj; };
inf->IsSameObject = [](JNIEnv*, jobject a, jobject b) -> jboolean {
return strcmp(reinterpret_cast<const char*>(a), reinterpret_cast<const char*>(b)) == 0;
};
return inf;
}
} // namespace nativeloader
} // namespace android
#endif // ART_LIBNATIVELOADER_NATIVE_LOADER_TEST_H_
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