CODEWITHSUNDEEP
rtestthat
gappy
gappy

Reputation: 10253

cryptic error message in testthat

I am running testthat in Rstudio (Windows 0.98.1056), and I get the following error. It seems to have appeared after I updated Rstudio and the installed R packages, but I suspect the two may not be directly related. The error occurs also on a very simple test file. Has anyone encountered this?

file: tests/test-all.R 

library(testthat)
library(matrixUtils)
test_package("matrixUtils")

file: tests/testthat/matrixUtils-test.R

context("testa")
test_that("subsetting by one dimension", {
  a <-1 
  expect_equal(a, 1)
})

Error message:

==> Sourcing R files in 'tests' directory

Error: '\.' is an unrecognized escape in character string starting "'\." Execution halted

Exited with status 1.


sessionInfo() R version 3.1.1 (2014-07-10) Platform: x86_64-w64-mingw32/x64 (64-bit)

locale: [1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C                           LC_TIME=English_United States.1252    

attached base packages: [1] grid      stats     graphics  grDevices utils     datasets  methods   base     

other attached packages: [1] magrittr_1.1.0  matrixUtils_0.2 testthat_0.8.1  dplyr_0.2.0.99  reshape2_1.4    ggplot2_1.0.0   gridExtra_0.9.1 [8] zoo_1.7-11     

loaded via a namespace (and not attached):  [1] assertthat_0.1   colorspace_1.2-4 digest_0.6.4     gtable_0.1.2     lattice_0.20-29  MASS_7.3-34      munsell_0.4.2     [8] parallel_3.1.1   plyr_1.8.1     proto_0.3-10     Rcpp_0.11.2      scales_0.2.4     stringr_0.6.2    tools_3.1.1     
>

Upvotes: 2

Views: 527

Answers (1)

micstr
micstr

Reputation: 5206

It's hard to check your error without the package. Some ideas:

This was a similar error reported in #187 on github/hadley/testthat.

  1. Update testthat package. Latest is 0.9.1. Issue was closed but looks hard to reproduce. @hadley suggests a fix

    check that devtools is enabled under project options in RStudio

    renkun-ken added library(devtools) as a last resort in his Rprofile.

    I start RStudio without .Rprofile which runs library(devtools). Test from Test package does not work, then I run devtools::test() as you suggest, and it works.

  2. If this does not work. Check your paths and use file.path() to create paths using strings in your package. This error seems to crop up with paths misspecified.

Hope this helps gappy and you get the "woot" happy test messages soon!

M

Upvotes: 1

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