580ea321b1
StateTracker is a special condition tracker that's based on a state atom.
State atoms are annotated in atoms.proto.
The rules for StateTracker:
1. must not have "stop". must have "dimension"
2. must be based on a state atom.
3. it must have the all primary fields and the exclusive state field in its dimension.
For example UidProcessStateTracker, will have output dimension {uid, state}.
Test: unit tests added.
Change-Id: I6b77e58e9fabe61f7326daf929577d8b2cfbf27b
113 lines
3.9 KiB
C++
113 lines
3.9 KiB
C++
// Copyright (C) 2017 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/condition/StateTracker.h"
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#include "tests/statsd_test_util.h"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include <stdio.h>
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#include <numeric>
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#include <vector>
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using std::map;
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using std::unordered_map;
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using std::vector;
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#ifdef __ANDROID__
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namespace android {
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namespace os {
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namespace statsd {
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const int kUidProcTag = 27;
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SimplePredicate getUidProcStatePredicate() {
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SimplePredicate simplePredicate;
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simplePredicate.set_start(StringToId("UidProcState"));
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simplePredicate.mutable_dimensions()->set_field(kUidProcTag);
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simplePredicate.mutable_dimensions()->add_child()->set_field(1);
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simplePredicate.mutable_dimensions()->add_child()->set_field(2);
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simplePredicate.set_count_nesting(false);
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return simplePredicate;
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}
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void makeUidProcStateEvent(int32_t uid, int32_t state, LogEvent* event) {
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event->write(uid);
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event->write(state);
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event->init();
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}
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TEST(StateTrackerTest, TestStateChange) {
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int uid1 = 111;
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int uid2 = 222;
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int state1 = 1001;
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int state2 = 1002;
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unordered_map<int64_t, int> trackerNameIndexMap;
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trackerNameIndexMap[StringToId("UidProcState")] = 0;
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vector<Matcher> primaryFields;
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primaryFields.push_back(getSimpleMatcher(kUidProcTag, 1));
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StateTracker tracker(ConfigKey(12, 123), 123, 0, getUidProcStatePredicate(),
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trackerNameIndexMap, primaryFields);
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LogEvent event(kUidProcTag, 0 /*timestamp*/);
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makeUidProcStateEvent(uid1, state1, &event);
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vector<MatchingState> matcherState;
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matcherState.push_back(MatchingState::kMatched);
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vector<sp<ConditionTracker>> allPredicates;
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vector<ConditionState> conditionCache(1, ConditionState::kNotEvaluated);
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vector<bool> changedCache(1, false);
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tracker.evaluateCondition(event, matcherState, allPredicates, conditionCache, changedCache);
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EXPECT_EQ(1ULL, tracker.mLastChangedToTrueDimensions.size());
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EXPECT_EQ(0ULL, tracker.mLastChangedToFalseDimensions.size());
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EXPECT_TRUE(changedCache[0]);
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changedCache[0] = false;
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conditionCache[0] = ConditionState::kNotEvaluated;
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tracker.evaluateCondition(event, matcherState, allPredicates, conditionCache, changedCache);
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EXPECT_EQ(0ULL, tracker.mLastChangedToTrueDimensions.size());
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EXPECT_EQ(0ULL, tracker.mLastChangedToFalseDimensions.size());
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EXPECT_FALSE(changedCache[0]);
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LogEvent event2(kUidProcTag, 0 /*timestamp*/);
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makeUidProcStateEvent(uid1, state2, &event2);
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changedCache[0] = false;
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conditionCache[0] = ConditionState::kNotEvaluated;
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tracker.evaluateCondition(event2, matcherState, allPredicates, conditionCache, changedCache);
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EXPECT_EQ(1ULL, tracker.mLastChangedToTrueDimensions.size());
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EXPECT_EQ(1ULL, tracker.mLastChangedToFalseDimensions.size());
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EXPECT_TRUE(changedCache[0]);
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LogEvent event3(kUidProcTag, 0 /*timestamp*/);
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makeUidProcStateEvent(uid2, state1, &event3);
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changedCache[0] = false;
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conditionCache[0] = ConditionState::kNotEvaluated;
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tracker.evaluateCondition(event3, matcherState, allPredicates, conditionCache, changedCache);
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EXPECT_EQ(1ULL, tracker.mLastChangedToTrueDimensions.size());
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EXPECT_EQ(0ULL, tracker.mLastChangedToFalseDimensions.size());
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EXPECT_TRUE(changedCache[0]);
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}
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} // namespace statsd
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} // namespace os
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} // namespace android
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#else
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GTEST_LOG_(INFO) << "This test does nothing.\n";
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#endif
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