R Under development (unstable) (2024-06-18 r86781 ucrt) -- "Unsuffered Consequences"
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> # This file is part of the standard setup for testthat.
> # It is recommended that you do not modify it.
> #
> # Where should you do additional test configuration?
> # Learn more about the roles of various files in:
> # * https://r-pkgs.org/testing-design.html#sec-tests-files-overview
> # * https://testthat.r-lib.org/articles/special-files.html
> 
> library(testthat)
> library(pmtc)
> 
> test_check("pmtc")
Installing packages into 'D:/temp/RtmpEFqvsj/RLIBS_10c3851493dc2'
(as 'lib' is unspecified)
Installing packages into 'D:/temp/RtmpEFqvsj/RLIBS_10c3851493dc2'
(as 'lib' is unspecified)
[ FAIL 2 | WARN 0 | SKIP 0 | PASS 0 ]

══ Failed tests ════════════════════════════════════════════════════════════════
── Error ('test-psi.R:6:5'): (code run outside of `test_that()`) ───────────────
Error in `contrib.url(repos, "source")`: trying to use CRAN without setting a mirror
Backtrace:
    ▆
 1. └─utils::install.packages(instalador, dependencies = T) at test-psi.R:6:5
 2.   └─utils::contrib.url(repos, "source")
── Error ('teste-main.R:6:5'): (code run outside of `test_that()`) ─────────────
Error in `contrib.url(repos, "source")`: trying to use CRAN without setting a mirror
Backtrace:
    ▆
 1. └─utils::install.packages(instalador, dependencies = T) at teste-main.R:6:5
 2.   └─utils::contrib.url(repos, "source")

[ FAIL 2 | WARN 0 | SKIP 0 | PASS 0 ]
Error: Test failures
Execution halted