The unit test fail when we run with --gtest_filter='*StorageDeltaMergeTest*:*RegionKVStoreTest*'

[JaySon-Huang]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

build gtests_dbms
run gtests_dbms for all unit test or --gtest_filter='*StorageDeltaMergeTest*:*RegionKVStoreTest*'

2. What did you expect to see? (Required)

All passed

3. What did you see instead (Required)

RegionKVStoreTest fail with error

Note: Google Test filter = *StorageDeltaMergeTest*:*RegionKVStoreTest*
[==========] Running 6 tests from 2 test cases.
[----------] Global test environment set-up.
[----------] 5 tests from StorageDeltaMergeTest
[ RUN      ] StorageDeltaMergeTest.ReadWriteCase1
...
[       OK ] StorageDeltaMergeTest.RestoreAfterClearData (624 ms)
[----------] 5 tests from StorageDeltaMergeTest (835 ms total)

[----------] 1 test from RegionKVStoreTest
[ RUN      ] RegionKVStoreTest.run
...
[2022/05/16 17:35:35.065 +08:00] [INFO] [Region.cpp:189] ["Region:[region 1] split into [region 7, index 5, table 1, ver 7, conf_ver 0, state Normal, peer ] [region 1, index 20, table 1, ver 7, conf_ver 0, state Normal, peer id: 2]"] [thread_id=1]
[2022/05/16 17:35:35.065 +08:00] [INFO] [RegionTable.cpp:44] ["RegionTable:get new table 1"] [thread_id=1]
[2022/05/16 17:35:35.065 +08:00] [TRACE] [RegionTable.cpp:122] ["RegionTable:table 1, [region 7] original 79 bytes"] [thread_id=1]
[2022/05/16 17:35:35.065 +08:00] [TRACE] [PartitionStreams.cpp:121] ["RegionTable:writeRegionDataToStorage begin to decode table 1, region 7"] [thread_id=1]
unknown file: Failure
C++ exception with description "unordered_map::at: key not found" thrown in the test body.
[  FAILED  ] RegionKVStoreTest.run (39 ms)
[----------] 1 test from RegionKVStoreTest (39 ms total)

[----------] Global test environment tear-down
[==========] 6 tests from 2 test cases ran. (874 ms total)
[  PASSED  ] 5 tests.
[  FAILED  ] 1 test, listed below:
[  FAILED  ] RegionKVStoreTest.run

4. What is your TiFlash version? (Required)

master @ 2bff33c