R Under development (unstable) (2024-01-26 r85832 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> options(dbms = "postgresql")
> test_check("CohortAlgebra")
Loading required package: CohortAlgebra
Loading required package: DatabaseConnector

Attaching package: 'dplyr'

The following object is masked from 'package:testthat':

    matches

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

************* Testing on postgresql *************
Consider adding `DATABASECONNECTOR_JAR_FOLDER='D:\temp\RtmpGMsvu4\file2a8b4736e7dfb/jdbcDrivers'` to C:\Users\CRAN\Documents/.Renviron and restarting R.
trying URL 'https://ohdsi.github.io/DatabaseConnectorJars/postgresqlV42.2.18.zip'
Content type 'application/zip' length 931791 bytes (909 KB)
==================================================
downloaded 909 KB

DatabaseConnector postgresql JDBC driver downloaded to 'D:\temp\RtmpGMsvu4\file2a8b4736e7dfb/jdbcDrivers'.
[ FAIL 0 | WARN 0 | SKIP 9 | PASS 0 ]

══ Skipped tests (9) ═══════════════════════════════════════════════════════════
• skipCdmTests is TRUE (9): 'test-appendCohortTables.R:2:3',
  'test-copyCohorts.R:2:3', 'test-deleteCohort.R:2:3',
  'test-eraFyCohorts.R:2:3', 'test-intersectCohorts.R:2:3',
  'test-minusCohorts.R:2:3', 'test-reindexCohortsByDays.R:2:3',
  'test-removeOverlappingSubjects.R:2:3', 'test-unionCohorts.R:2:3'

[ FAIL 0 | WARN 0 | SKIP 9 | PASS 0 ]
Warning message:
The folder location 'D:\temp\RtmpGMsvu4\file2a8b4736e7dfb/jdbcDrivers' does not exist. Attempting to create. 
> 
> proc.time()
   user  system elapsed 
   1.26    0.20    1.70