R Under development (unstable) (2026-02-23 r89469 ucrt) -- "Unsuffered Consequences"
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> require(testthat)
Loading required package: testthat
> 
> options("FULL.TEST.SUITE" = Sys.getenv("FULL_TEST_SUITE") == "1")
> 
> # Get current Java parameters to append to them, not overwrite others.
> original_java_params <- getOption("java.parameters")
> j_params <- c(
+   original_java_params,
+   "-XX:+UseParallelGC",
+   "-XX:ParallelGCThreads=1",
+   paste0("-Duser.timezone=", Sys.timezone())
+ )
> if (!getOption("FULL.TEST.SUITE")) {
+   j_params = c(j_params, "-XX:ActiveProcessorCount=1")
+ }
> 
> options_to_set <- list(
+   java.parameters = j_params, # can't use withr for java.parameters, as we can only load the jvm once in the session
+   encoding = "UTF-8"
+ )
> 
> options(options_to_set)
> 
> rm(original_java_params, j_params, options_to_set)
> # Load library built by R CMD check
> library(package = "XLConnect", character.only = TRUE)
XLConnect 1.3.0 by Mirai Solutions GmbH [aut],
  Martin Studer [cre] (<https://orcid.org/0009-0004-8250-7303>),
  The Apache Software Foundation [ctb, cph] (Apache POI),
  Graph Builder [ctb, cph] (Curvesapi Java library),
  Brett Woolridge [ctb, cph] (SparseBitSet Java library)
https://mirai-solutions.ch
https://github.com/miraisolutions/xlconnect
> 
> test_check("XLConnect")
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!C10 - Error detected in cell MySheet!C10 - No such name defined
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!D8 - Error detected in cell MySheet!D8 - Incompatible type
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!E8 - Error detected in cell MySheet!E8 - Incompatible type
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!F11 - Error detected in cell MySheet!F11 - Division by 0
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!G9 - Could not resolve external workbook name '\home\mstuder\Documents\Projects\R\XLConnect\xlconnect\inst\unitTests\resources\MySheet2'. Workbook environment has not been set up.
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!C10 - Specified named range 'myname' does not exist in the current workbook.
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!D8 - Error detected in cell MySheet!D8 - Incompatible type
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!E8 - Error detected in cell MySheet!E8 - Incompatible type
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!F11 - Error detected in cell MySheet!F11 - Division by 0
Error : IllegalArgumentException (Java): Error when trying to evaluate cell MySheet!G9 - Index 0 out of bounds for length 0
[ FAIL 0 | WARN 14 | SKIP 15 | PASS 651 ]

══ Skipped tests (15) ══════════════════════════════════════════════════════════
• FULL.TEST.SUITE is not TRUE (12): 'test.dataframeConversion.R:56:3',
  'test.dumpAndRestore.R:2:3', 'test.workbook.saveWorkbook.R:2:3',
  'test.workbook.saveWorkbook.R:18:3', 'test.workbook.saveWorkbook.R:34:3',
  'test.workbook.saveWorkbook.R:46:3', 'test.writeAndReadNamedRegion.R:85:3',
  'test.writeAndReadWorksheet.R:81:3', 'test.writeNamedRegionToFile.R:2:3',
  'test.writeWorksheetToFile.R:20:3', 'test.writeWorksheetToFile.R:82:3',
  'test.writeWorksheetToFile.R:103:3'
• FULL.TEST.SUITE is not TRUE for cellstyle tests (2):
  'test.workbook.cellstyles.R:5:3', 'test.workbook.cellstyles.R:44:3'
• empty test (1): 'test.workbook.createName.R:88:1'

[ FAIL 0 | WARN 14 | SKIP 15 | PASS 651 ]
> 
> proc.time()
   user  system elapsed 
  38.98    4.01   33.43