R Under development (unstable) (2024-07-18 r86905 ucrt) -- "Unsuffered Consequences"
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> library("testthat")
> library("DBI")
> 
> test_check("duckdb")
Loading required package: duckdb
[ FAIL 0 | WARN 0 | SKIP 48 | PASS 628 ]

══ Skipped tests (48) ══════════════════════════════════════════════════════════
• On CRAN (19): 'test-DBItest.R:1:1', 'test-arrow.R:18:1',
  'test-arrow_stream.R:1:1', 'test-backend-dbplyr__duckdb_connection.R:385:3',
  'test-backend-dbplyr__duckdb_connection.R:417:3',
  'test-backend-dbplyr__duckdb_connection.R:460:3',
  'test-backend-dbplyr__duckdb_connection.R:485:3',
  'test-backend-dbplyr__duckdb_connection.R:531:3',
  'test-backend-dbplyr__duckdb_connection.R:561:3',
  'test-backend-dbplyr__duckdb_connection.R:586:3',
  'test-backend-dbplyr__duckdb_connection.R:602:3', 'test-explain.R:1:1',
  'test-extension_path.R:1:1', 'test-fetch_arrow.R:1:1', 'test-map.R:43:3',
  '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'
• TEST_RE2 is not TRUE (25): 'test-connect.R:59:3', 'test-connect.R:79:3',
  'test-connect.R:99:3', 'test-connect.R:119:3', 'test-connect.R:144:3',
  'test-connect.R:167:3', 'test-dbwritetable.R:2:3', 'test-factor.R:2:3',
  'test-factor.R:25:3', 'test-factor.R:40:3', 'test-factor.R:69:3',
  'test-read.R:2:3', 'test-readonly.R:2:3', 'test-register.R:41:3',
  'test-rel_api.R:8217:3', 'test-rel_api.R:11259:3', 'test-shutdown.R:2:3',
  'test-struct.R:113:3', 'test-struct.R:133:3', 'test-timestamp.R:2:3',
  'test-viewer.R:2:3', 'test-viewer.R:17:3', 'test-viewer.R:37:3',
  'test-viewer.R:60:3', 'test-viewer.R:80:3'
• empty test (1): 'test-factor.R:82:1'
• interactive() is not TRUE (2): 'test-connect.R:5:3', 'test-connect.R:15:3'

[ FAIL 0 | WARN 0 | SKIP 48 | PASS 628 ]
Warning messages:
1: Connection is garbage-collected, use dbDisconnect() to avoid this. 
2: Connection is garbage-collected, use dbDisconnect() to avoid this. 
> 
> proc.time()
   user  system elapsed 
  17.85    8.35   19.40 
Warning message:
Database is garbage-collected, use dbConnect(duckdb()) with dbDisconnect(), or duckdb::duckdb_shutdown(drv) to avoid this.