| /* |
| * Copyright (C) 2020 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 <map> |
| #include <mutex> |
| #include <string> |
| #include <string_view> |
| |
| #include <android-base/format.h> |
| #include <android-base/test_utils.h> |
| #include <gmock/gmock.h> |
| #include <gtest/gtest.h> |
| #include <netdutils/NetNativeTestBase.h> |
| |
| #include "Experiments.h" |
| |
| namespace android::net { |
| |
| class ExperimentsTest : public NetNativeTestBase { |
| public: |
| ExperimentsTest() : mExperiments(fakeGetExperimentFlagInt) {} |
| |
| protected: |
| static int fakeGetExperimentFlagInt(const std::string& key, int defaultValue) { |
| auto it = sFakeFlagsMapInt.find(key); |
| if (it != sFakeFlagsMapInt.end()) { |
| return it->second; |
| } |
| return defaultValue; |
| } |
| |
| void setupFakeMap(int value) { |
| for (const auto& key : Experiments::kExperimentFlagKeyList) { |
| sFakeFlagsMapInt[key] = value; |
| } |
| } |
| |
| void setupExperimentsMap(int value) { |
| setupFakeMap(value); |
| std::lock_guard guard(mExperiments.mMutex); |
| mExperiments.mFlagsMapInt = sFakeFlagsMapInt; |
| } |
| |
| void expectFlagsMapInt() { |
| std::lock_guard guard(mExperiments.mMutex); |
| EXPECT_THAT(mExperiments.mFlagsMapInt, ::testing::ContainerEq(sFakeFlagsMapInt)); |
| } |
| |
| void expectFlagsMapIntDefault() { |
| std::lock_guard guard(mExperiments.mMutex); |
| for (const auto& [key, value] : mExperiments.mFlagsMapInt) { |
| EXPECT_EQ(value, Experiments::kFlagIntDefault); |
| } |
| } |
| |
| void expectGetDnsExperimentFlagIntDefault(int value) { |
| for (const auto& key : Experiments::kExperimentFlagKeyList) { |
| EXPECT_EQ(mExperiments.getFlag(key, value), value); |
| } |
| } |
| |
| void expectGetDnsExperimentFlagInt() { |
| std::map<std::string_view, int> tempMap; |
| for (const auto& key : Experiments::kExperimentFlagKeyList) { |
| tempMap[key] = mExperiments.getFlag(key, 0); |
| } |
| EXPECT_THAT(tempMap, ::testing::ContainerEq(sFakeFlagsMapInt)); |
| } |
| |
| void expectDumpOutput() { |
| netdutils::DumpWriter dw(STDOUT_FILENO); |
| CapturedStdout captured; |
| mExperiments.dump(dw); |
| const std::string dumpString = captured.str(); |
| const std::string title = "Experiments list:"; |
| EXPECT_EQ(dumpString.find(title), 0U); |
| size_t startPos = title.size(); |
| std::lock_guard guard(mExperiments.mMutex); |
| for (const auto& [key, value] : mExperiments.mFlagsMapInt) { |
| std::string flagDump = fmt::format("{}: {}", key, value); |
| if (value == Experiments::kFlagIntDefault) { |
| flagDump = fmt::format("{}: UNSET", key); |
| } |
| SCOPED_TRACE(flagDump); |
| size_t pos = dumpString.find(flagDump, startPos); |
| EXPECT_NE(pos, std::string::npos); |
| startPos = pos + flagDump.size(); |
| } |
| EXPECT_EQ(startPos + 1, dumpString.size()); |
| EXPECT_EQ(dumpString.substr(startPos), "\n"); |
| } |
| |
| static std::map<std::string_view, int> sFakeFlagsMapInt; |
| Experiments mExperiments; |
| }; |
| |
| std::map<std::string_view, int> ExperimentsTest::sFakeFlagsMapInt; |
| |
| TEST_F(ExperimentsTest, update) { |
| std::vector<int> testValues = {50, 3, 5, 0}; |
| for (int testValue : testValues) { |
| setupFakeMap(testValue); |
| mExperiments.update(); |
| expectFlagsMapInt(); |
| } |
| } |
| |
| TEST_F(ExperimentsTest, getDnsExperimentFlagInt) { |
| std::vector<int> testValues = {5, 1, 6, 0}; |
| for (int testValue : testValues) { |
| setupExperimentsMap(testValue); |
| expectGetDnsExperimentFlagInt(); |
| } |
| } |
| |
| TEST_F(ExperimentsTest, getDnsExperimentFlagIntDefaultValue) { |
| // Clear the map and make mExperiments initialized with our default int value. |
| sFakeFlagsMapInt.clear(); |
| mExperiments.update(); |
| expectFlagsMapIntDefault(); |
| std::vector<int> testValues = {100, 50, 30, 5}; |
| for (int testValue : testValues) { |
| expectGetDnsExperimentFlagIntDefault(testValue); |
| } |
| } |
| |
| TEST_F(ExperimentsTest, dump) { |
| std::vector<int> testValues = {100, 37, 0, 30}; |
| for (int testValue : testValues) { |
| setupFakeMap(testValue); |
| mExperiments.update(); |
| expectDumpOutput(); |
| } |
| sFakeFlagsMapInt.clear(); |
| mExperiments.update(); |
| expectDumpOutput(); |
| } |
| |
| } // namespace android::net |