Update ChDbTest.cs

Author: wudidapaopao

.github/workflows/dotnet.yml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       matrix:
        include:
-         - os: ubuntu-latest
+         - os: ubuntu-22.04
            rid: linux-x64
          - os: macos-latest
            rid: osx-x64
@@ -72,7 +72,7 @@ jobs:
         dotnet build --no-restore --configuration Release
 
     - name: Test
-      run: dotnet test -c Release --no-build --logger trx --results-directory "TestResults-${{ matrix.rid }}"
+      run: dotnet test -c Release /p:TestTfmsInParallel=false --logger "console;verbosity=detailed" --no-build --logger trx --results-directory "TestResults-${{ matrix.rid }}"
 
     # - name: Upload dotnet test results
     #   uses: actions/upload-artifact@v4

src/chdb/Session.cs

@@ -21,7 +21,7 @@ public record Session : IDisposable
 
     public void Dispose()
     {
-        if (!IsTemp && DataPath?.EndsWith("chdb_") == true && Directory.Exists(DataPath))
+        if (IsTemp && DataPath?.EndsWith("chdb_") == true && Directory.Exists(DataPath))
             Directory.Delete(DataPath, true);
     }