R Under development (unstable) (2023-10-28 r85429 ucrt) -- "Unsuffered Consequences"
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> library("testthat")
> library("DBI")
> 
> test_check("duckdb")
Loading required package: duckdb
[ FAIL 0 | WARN 0 | SKIP 19 | PASS 608 ]

══ Skipped tests (19) ══════════════════════════════════════════════════════════
• On CRAN (17): 'test-DBItest.R:1:1', 'test_arrow.R:18:1',
  'test_arrow_stream.R:1:1', 'test_backend-dbplyr__duckdb_connection.R:201:3',
  'test_backend-dbplyr__duckdb_connection.R:231:3',
  'test_backend-dbplyr__duckdb_connection.R:272:3',
  'test_backend-dbplyr__duckdb_connection.R:295:3',
  'test_backend-dbplyr__duckdb_connection.R:339:3',
  'test_backend-dbplyr__duckdb_connection.R:367:3',
  'test_backend-dbplyr__duckdb_connection.R:390:3',
  'test_backend-dbplyr__duckdb_connection.R:404:3', 'test_explain.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 19 | PASS 608 ]
Warning messages:
1: Database is garbage-collected, use dbDisconnect(con, shutdown=TRUE) or duckdb::duckdb_shutdown(drv) to avoid this. 
2: Database is garbage-collected, use dbDisconnect(con, shutdown=TRUE) or duckdb::duckdb_shutdown(drv) to avoid this. 
> 
> proc.time()
   user  system elapsed 
  17.39   25.23   23.00 
Warning message:
Database is garbage-collected, use dbDisconnect(con, shutdown=TRUE) or duckdb::duckdb_shutdown(drv) to avoid this.