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Test mapping of Histograms and HistogramsNameMap (#4720)

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Summary:
Adding sanity check test for mapping of `Histograms` and `HistogramsNameMap`

```
[==========] Running 2 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 2 tests from StatisticsTest
[ RUN      ] StatisticsTest.SanityTickers
[       OK ] StatisticsTest.SanityTickers (0 ms)
[ RUN      ] StatisticsTest.SanityHistograms
[       OK ] StatisticsTest.SanityHistograms (0 ms)
[----------] 2 tests from StatisticsTest (0 ms total)

[----------] Global test environment tear-down
[==========] 2 tests from 1 test case ran. (0 ms total)
[  PASSED  ] 2 tests.
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4720

Differential Revision: D13217061

Pulled By: ajkr

fbshipit-source-id: 6427f4e684c36b2f3c3440808b74fee86a364683
This commit is contained in:
Adam Singer 2018-11-27 10:46:26 -08:00 committed by Facebook Github Bot
parent a2dec2ed08
commit 1db4a096d4
2 changed files with 14 additions and 2 deletions
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2
include/rocksdb/statistics.h
View File

@ -414,7 +414,7 @@ enum Histograms : uint32_t {
// Time spent flushing memtable to disk
FLUSH_TIME,
HISTOGRAM_ENUM_MAX, // TODO(ldemailly): enforce HistogramsNameMap match
HISTOGRAM_ENUM_MAX,
};
extern const std::vector<std::pair<Histograms, std::string>> HistogramsNameMap;

14
monitoring/statistics_test.cc
View File

@ -16,7 +16,7 @@ class StatisticsTest : public testing::Test {};
// Sanity check to make sure that contents and order of TickersNameMap
// match Tickers enum
TEST_F(StatisticsTest, Sanity) {
TEST_F(StatisticsTest, SanityTickers) {
EXPECT_EQ(static_cast<size_t>(Tickers::TICKER_ENUM_MAX),
TickersNameMap.size());
@ -26,6 +26,18 @@ TEST_F(StatisticsTest, Sanity) {
}
}
// Sanity check to make sure that contents and order of HistogramsNameMap
// match Tickers enum
TEST_F(StatisticsTest, SanityHistograms) {
EXPECT_EQ(static_cast<size_t>(Histograms::HISTOGRAM_ENUM_MAX),
HistogramsNameMap.size());
for (uint32_t h = 0; h < Histograms::HISTOGRAM_ENUM_MAX; h++) {
auto pair = HistogramsNameMap[static_cast<size_t>(h)];
ASSERT_EQ(pair.first, h) << "Miss match at " << pair.second;
}
}
} // namespace rocksdb
int main(int argc, char** argv) {