R Under development (unstable) (2024-03-11 r86098 ucrt) -- "Unsuffered Consequences"
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> library("testthat")
> library("DBI")
> 
> test_check("duckdb")
Loading required package: duckdb
[ FAIL 0 | WARN 0 | SKIP 20 | PASS 641 ]

══ Skipped tests (20) ══════════════════════════════════════════════════════════
• On CRAN (18): 'test-DBItest.R:1:1', 'test_arrow.R:18:1',
  'test_arrow_stream.R:1:1', 'test_backend-dbplyr__duckdb_connection.R:229:3',
  'test_backend-dbplyr__duckdb_connection.R:261:3',
  'test_backend-dbplyr__duckdb_connection.R:304:3',
  'test_backend-dbplyr__duckdb_connection.R:329:3',
  'test_backend-dbplyr__duckdb_connection.R:375:3',
  'test_backend-dbplyr__duckdb_connection.R:405:3',
  'test_backend-dbplyr__duckdb_connection.R:430:3',
  'test_backend-dbplyr__duckdb_connection.R:446:3', 'test_explain.R:1:1',
  'test_extension_path.R:1:1', 'test_fetch_arrow.R:1:1',
  'test_multi_statement.R:1:1', 'test_register_arrow.R:1:1',
  'test_struct.R:52:3', 'test_tbl__duckdb_connection.R:1:1'
• On Windows (1): 'test_types.R:2:3'
• empty test (1): 'test_factor.R:74:1'

[ FAIL 0 | WARN 0 | SKIP 20 | PASS 641 ]
Warning messages:
1: Connection is garbage-collected, use dbDisconnect() to avoid this. 
2: Connection is garbage-collected, use dbDisconnect() to avoid this. 
3: Database is garbage-collected, use dbDisconnect(con, shutdown=TRUE) or duckdb::duckdb_shutdown(drv) to avoid this. 
4: Database is garbage-collected, use dbDisconnect(con, shutdown=TRUE) or duckdb::duckdb_shutdown(drv) to avoid this. 
5: Database is garbage-collected, use dbDisconnect(con, shutdown=TRUE) or duckdb::duckdb_shutdown(drv) to avoid this. 
6: Database is garbage-collected, use dbDisconnect(con, shutdown=TRUE) or duckdb::duckdb_shutdown(drv) to avoid this. 
> 
> proc.time()
   user  system elapsed 
  18.48   24.32   24.70 
Warning message:
Database is garbage-collected, use dbDisconnect(con, shutdown=TRUE) or duckdb::duckdb_shutdown(drv) to avoid this.