[NSE-125] Add C++ unit tests to CI

[zhztheplayer]

No description provided.

[github-actions]

#125

[zhztheplayer]

@zhouyuan Let's use this approach at this time. And in future we can add gtest installation into CMake configuration to get better compatibility.

[zhztheplayer]

CI failure message is:

97% tests passed, 3 tests failed out of 88

Total Test time (real) =  96.85 sec

The following tests FAILED:
	 61 - TestArrowComputeWSCG.WSCGTestContinuousMergeJoinSemiExistenceWithCondition (Failed)
Errors while running CTest
	 66 - TestArrowComputeWSCG.WSCGTestStringMergeInnerJoinWithGroupbyAggregate (Failed)
	 81 - TestArrowComputeWSCG.JoinWOCGTestInnerJoinType2WithUInt16 (Failed)
Error: Process completed with exit code 8.

[github-actions]

[zhouyuan]

@zhztheplayer

thanks, i'll try to make a patch for this.
can you please cherry pick this change to fix the ut?
zhouyuan@45924d8

[zhouyuan]

@zhztheplayer
it looks like the version of gtest is a bit old. can you please manually comment out this test?
https://github.com/oap-project/native-sql-engine/blob/master/cpp/src/tests/arrow_compute_test_join_wocg.cc#L1740

/home/runner/work/native-sql-engine/native-sql-engine/cpp/src/tests/arrow_compute_test_join_wocg.cc:1741:3: error: ‘GTEST_SKIP’ was not declared in this scope
   GTEST_SKIP(); //TODO() fix this test
   ^~~~~~~~~~
/home/runner/work/native-sql-engine/native-sql-engine/cpp/src/tests/arrow_compute_test_join_wocg.cc:1741:3: note: suggested alternative: ‘GTEST_API_’
   GTEST_SKIP(); //TODO() fix this test
   ^~~~~~~~~~
   GTEST_API_

[github-actions]

[github-actions]