proposed migration r-cran-withr 3.0.0+dfsg-1 vs r-cran-dials 1.2.0-2

[Vladimir Petko]

The autopkgtest fails with the following error[1]

 88s autopkgtest [11:32:09]: test run-unit-test: [-----------------------
 89s BEGIN TEST testthat.R
 89s
 89s R version 4.4.1 (2024-06-14) -- "Race for Your Life"
 89s Copyright (C) 2024 The R Foundation for Statistical Computing
 89s Platform: x86_64-pc-linux-gnu
 89s
 89s R is free software and comes with ABSOLUTELY NO WARRANTY.
 89s You are welcome to redistribute it under certain conditions.
 89s Type 'license()' or 'licence()' for distribution details.
 89s
 89s R is a collaborative project with many contributors.
 89s Type 'contributors()' for more information and
 89s 'citation()' on how to cite R or R packages in publications.
 89s
 89s Type 'demo()' for some demos, 'help()' for on-line help, or
 89s 'help.start()' for an HTML browser interface to help.
 89s Type 'q()' to quit R.
 89s
 89s > library(testthat)
 89s > library(dials)
 89s Loading required package: scales
 89s >
 89s > if (requireNamespace("xml2")) {
 89s + test_check("dials", reporter = MultiReporter$new(reporters = list(JunitReporter$new(file = "test-results.xml"), CheckReporter$new())))
 89s + } else {
 89s + test_check("dials")
 89s + }
 89s Loading required namespace: xml2
 89s Error in UseMethod("xml_add_child") :
 89s no applicable method for 'xml_add_child' applied to an object of class "NULL"
 89s Calls: test_check ... o_apply -> lapply -> FUN -> <Anonymous> -> <Anonymous>
 89s Execution halted
 90s autopkgtest [11:32:11]: test run-unit-test: -----------------------]
 90s run-unit-test FAIL non-zero exit status 1

[1] https://objectstorage.prodstack5.canonical.com/swift/v1/AUTH_0f9aae918d5b4744bf7b827671c86842/autopkgtest-oracular/oracular/amd64/r/r-cran-dials/20240616_113414_97ba1@/log.gz

[Vladimir Petko (vpa1977)]

The error is caused by the usage of JunitReporter:

junit = JunitReporter$new(file = "test-results.xml")
test_check("dials", reporter = junit)

Results in

Error in UseMethod("xml_add_child") :
  no applicable method for 'xml_add_child' applied to an object of class "NULL"