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// Copyright (C) 2017 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 "src/condition/StateTracker.h"
#include "tests/statsd_test_util.h"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <stdio.h>
#include <numeric>
#include <vector>
using std::map;
using std::unordered_map;
using std::vector;
#ifdef __ANDROID__
namespace android {
namespace os {
namespace statsd {
const int kUidProcTag = 27;
SimplePredicate getUidProcStatePredicate() {
SimplePredicate simplePredicate;
simplePredicate.set_start(StringToId("UidProcState"));
simplePredicate.mutable_dimensions()->set_field(kUidProcTag);
simplePredicate.mutable_dimensions()->add_child()->set_field(1);
simplePredicate.mutable_dimensions()->add_child()->set_field(2);
simplePredicate.set_count_nesting(false);
return simplePredicate;
}
void makeUidProcStateEvent(int32_t uid, int32_t state, LogEvent* event) {
event->write(uid);
event->write(state);
event->init();
}
TEST(StateTrackerTest, TestStateChange) {
int uid1 = 111;
int uid2 = 222;
int state1 = 1001;
int state2 = 1002;
unordered_map<int64_t, int> trackerNameIndexMap;
trackerNameIndexMap[StringToId("UidProcState")] = 0;
vector<Matcher> primaryFields;
primaryFields.push_back(getSimpleMatcher(kUidProcTag, 1));
StateTracker tracker(ConfigKey(12, 123), 123, 0, getUidProcStatePredicate(),
trackerNameIndexMap, primaryFields);
LogEvent event(kUidProcTag, 0 /*timestamp*/);
makeUidProcStateEvent(uid1, state1, &event);
vector<MatchingState> matcherState;
matcherState.push_back(MatchingState::kMatched);
vector<sp<ConditionTracker>> allPredicates;
vector<ConditionState> conditionCache(1, ConditionState::kNotEvaluated);
vector<bool> changedCache(1, false);
tracker.evaluateCondition(event, matcherState, allPredicates, conditionCache, changedCache);
EXPECT_EQ(1ULL, tracker.mLastChangedToTrueDimensions.size());
EXPECT_EQ(0ULL, tracker.mLastChangedToFalseDimensions.size());
EXPECT_TRUE(changedCache[0]);
changedCache[0] = false;
conditionCache[0] = ConditionState::kNotEvaluated;
tracker.evaluateCondition(event, matcherState, allPredicates, conditionCache, changedCache);
EXPECT_EQ(0ULL, tracker.mLastChangedToTrueDimensions.size());
EXPECT_EQ(0ULL, tracker.mLastChangedToFalseDimensions.size());
EXPECT_FALSE(changedCache[0]);
LogEvent event2(kUidProcTag, 0 /*timestamp*/);
makeUidProcStateEvent(uid1, state2, &event2);
changedCache[0] = false;
conditionCache[0] = ConditionState::kNotEvaluated;
tracker.evaluateCondition(event2, matcherState, allPredicates, conditionCache, changedCache);
EXPECT_EQ(1ULL, tracker.mLastChangedToTrueDimensions.size());
EXPECT_EQ(1ULL, tracker.mLastChangedToFalseDimensions.size());
EXPECT_TRUE(changedCache[0]);
LogEvent event3(kUidProcTag, 0 /*timestamp*/);
makeUidProcStateEvent(uid2, state1, &event3);
changedCache[0] = false;
conditionCache[0] = ConditionState::kNotEvaluated;
tracker.evaluateCondition(event3, matcherState, allPredicates, conditionCache, changedCache);
EXPECT_EQ(1ULL, tracker.mLastChangedToTrueDimensions.size());
EXPECT_EQ(0ULL, tracker.mLastChangedToFalseDimensions.size());
EXPECT_TRUE(changedCache[0]);
}
} // namespace statsd
} // namespace os
} // namespace android
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
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