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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.
*/
#include <android/binder_auto_utils.h>
#include <android/binder_manager.h>
#include <binder/ProcessState.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <aidl/android/aidl/tests/ITestService.h>
using aidl::android::aidl::tests::BackendType;
using aidl::android::aidl::tests::ITestService;
using testing::Eq;
struct AidlTest : testing::Test {
template <typename T>
std::shared_ptr<T> getService() {
android::ProcessState::self()->setThreadPoolMaxThreadCount(1);
android::ProcessState::self()->startThreadPool();
ndk::SpAIBinder binder = ndk::SpAIBinder(AServiceManager_waitForService(T::descriptor));
return T::fromBinder(binder);
}
void SetUp() override {
service = getService<ITestService>();
auto status = service->getBackendType(&backend);
ASSERT_TRUE(status.isOk()) << status.getDescription();
}
std::shared_ptr<ITestService> service;
BackendType backend;
};
TEST_F(AidlTest, repeatUtf8String) {
const std::vector<std::string> utf8_inputs = {
std::string("Deliver us from evil."),
std::string(),
std::string("\0\0", 2),
// Similarly, the utf8 encodings of the small letter yee and euro sign.
std::string("\xF0\x90\x90\xB7\xE2\x82\xAC"),
ITestService::STRING_TEST_CONSTANT_UTF8,
};
for (const auto& input : utf8_inputs) {
std::string reply;
auto status = service->RepeatUtf8CppString(input, &reply);
ASSERT_TRUE(status.isOk());
ASSERT_THAT(reply, Eq(input));
}
std::optional<std::string> reply;
auto status = service->RepeatNullableUtf8CppString(std::nullopt, &reply);
ASSERT_TRUE(status.isOk());
ASSERT_FALSE(reply.has_value());
for (const auto& input : utf8_inputs) {
std::optional<std::string> reply;
auto status = service->RepeatNullableUtf8CppString(input, &reply);
ASSERT_TRUE(status.isOk());
ASSERT_TRUE(reply.has_value());
ASSERT_THAT(*reply, Eq(input));
}
}
TEST_F(AidlTest, reverseUtf8StringArray) {
std::vector<std::string> input = {"a", "", "\xc3\xb8"};
decltype(input) repeated;
if (backend == BackendType::JAVA) {
repeated = decltype(input)(input.size());
}
decltype(input) reversed;
auto status = service->ReverseUtf8CppString(input, &repeated, &reversed);
ASSERT_TRUE(status.isOk()) << status.getDescription();
ASSERT_THAT(repeated, Eq(input));
decltype(input) reversed_input(input);
std::reverse(reversed_input.begin(), reversed_input.end());
ASSERT_THAT(reversed, Eq(reversed_input));
}
struct AidlStringArrayTest : public AidlTest {
void DoTest(::ndk::ScopedAStatus (ITestService::*func)(
const std::optional<std::vector<std::optional<std::string>>>&,
std::optional<std::vector<std::optional<std::string>>>*,
std::optional<std::vector<std::optional<std::string>>>*)) {
std::optional<std::vector<std::optional<std::string>>> input;
decltype(input) repeated;
decltype(input) reversed;
auto status = (*service.*func)(input, &repeated, &reversed);
ASSERT_TRUE(status.isOk()) << status.getDescription();
if (func == &ITestService::ReverseUtf8CppStringList && backend == BackendType::JAVA) {
// Java cannot clear the input variable to return a null value. It can
// only ever fill out a list.
ASSERT_TRUE(repeated.has_value());
} else {
ASSERT_FALSE(repeated.has_value());
}
ASSERT_FALSE(reversed.has_value());
input = std::vector<std::optional<std::string>>();
input->push_back("Deliver us from evil.");
input->push_back(std::nullopt);
input->push_back("\xF0\x90\x90\xB7\xE2\x82\xAC");
// usable size needs to be initialized for Java
repeated = std::vector<std::optional<std::string>>(input->size());
status = (*service.*func)(input, &repeated, &reversed);
ASSERT_TRUE(status.isOk()) << status.getDescription();
ASSERT_TRUE(reversed.has_value());
ASSERT_TRUE(repeated.has_value());
ASSERT_THAT(reversed->size(), Eq(input->size()));
ASSERT_THAT(repeated->size(), Eq(input->size()));
for (size_t i = 0; i < input->size(); i++) {
auto input_str = (*input)[i];
auto repeated_str = (*repeated)[i];
auto reversed_str = (*reversed)[(reversed->size() - 1) - i];
if (!input_str) {
ASSERT_FALSE(repeated_str.has_value());
ASSERT_FALSE(reversed_str.has_value());
// 3 nullptrs to strings. No need to compare values.
continue;
}
ASSERT_TRUE(repeated_str.has_value());
ASSERT_TRUE(reversed_str.has_value());
ASSERT_THAT(*repeated_str, Eq(*input_str));
ASSERT_THAT(*reversed_str, Eq(*input_str));
}
}
};
TEST_F(AidlStringArrayTest, nullableList) {
DoTest(&ITestService::ReverseUtf8CppStringList);
}
TEST_F(AidlStringArrayTest, nullableArray) {
DoTest(&ITestService::ReverseNullableUtf8CppString);
}
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