This example is an attempt to use shinytest to test a learnr tutorial (file just-rmd/index.Rmd). After running shinytest::recordTest("just-rmd"), the testing files appear blank. See just-rmd/tests/mytest.R and just-rmd/tests/mytest-expected/001.json.
Session info:
R version 3.6.0 (2019-04-26)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04.2 LTS
Matrix products: default
BLAS: /home/landau/R/R-3.6.0/lib/libRblas.so
LAPACK: /home/landau/R/R-3.6.0/lib/libRlapack.so
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets
[6] methods base
other attached packages:
[1] promises_1.0.1 shiny_1.3.2 shinytest_1.3.1
loaded via a namespace (and not attached):
[1] Rcpp_1.0.1 rstudioapi_0.10 magrittr_1.5
[4] showimage_1.0.0 debugme_1.1.0 xtable_1.8-4
[7] R6_2.4.0 rlang_0.3.4.9003 rematch_1.0.1
[10] httr_1.4.0 webdriver_1.0.5 tools_3.6.0
[13] parsedate_1.2.0 png_0.1-7 withr_2.1.2
[16] htmltools_0.3.6 yaml_2.2.0 assertthat_0.2.1
[19] digest_0.6.19 crayon_1.3.4 processx_3.3.1
[22] callr_3.2.0 later_0.8.0 base64enc_0.1-3
[25] ps_1.3.0 rsconnect_0.8.13 curl_3.3
[28] testthat_2.1.1 mime_0.6 compiler_3.6.0
[31] pingr_1.1.2 jsonlite_1.6 httpuv_1.5.1 This example demonstrates the error that happens when we try to use shinytest on a learnr tutorial invoked through an app.R file. The tutorial at with-app-dot-r/example.Rmd runs fine on its own in the RStudio IDE and with rmarkdown::run(), but I am having trouble getting shinytest::recordTest("example") to work.
> shinytest::recordTest("with-app-dot-r")
Error in sd_startShiny(self, private, path, seed, loadTimeout, shinyOptions) :
Error starting application:
Running application in test mode.
Loading required package: shiny
Error in (function (appDir = getwd(), port = getOption("shiny.port"), :
Can't call `runApp()` from within `runApp()`. If your application code contains `runApp()`, please remove it.
> traceback()
7: stop("Error starting application:\n", paste(err_lines, collapse = "\n"))
6: sd_startShiny(self, private, path, seed, loadTimeout, shinyOptions)
5: private$startShiny(path, seed, loadTimeout, shinyOptions)
4: sd_initialize(self, private, path, loadTimeout, checkNames, debug,
phantomTimeout = phantomTimeout, seed = seed, cleanLogs = cleanLogs,
shinyOptions = shinyOptions)
3: .subset2(public_bind_env, "initialize")(...)
2: ShinyDriver$new(app, seed = seed, loadTimeout = loadTimeout,
shinyOptions = shinyOptions)
1: shinytest::recordTest("example")
> sessionInfo()
R version 3.5.2 (2018-12-20)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Red Hat Enterprise Linux
Matrix products: default
BLAS: /opt/R/R-3.5.2/lib64/R/lib/libRblas.so
LAPACK: /opt/R/R-3.5.2/lib64/R/lib/libRlapack.so
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] Rcpp_1.0.1 rstudioapi_0.10 magrittr_1.5 showimage_1.0.0
[5] debugme_1.1.0 xtable_1.8-4 R6_2.4.0 rlang_0.3.4.9003
[9] rematch_1.0.1 httr_1.4.0 webdriver_1.0.5 tools_3.5.2
[13] packrat_0.5.0 parsedate_1.2.0 png_0.1-7 withr_2.1.2
[17] htmltools_0.3.6 assertthat_0.2.1 digest_0.6.19 crayon_1.3.4
[21] processx_3.3.1 shiny_1.3.2 callr_3.2.0 later_0.8.0
[25] base64enc_0.1-3 promises_1.0.1 ps_1.3.0 curl_3.3
[29] testthat_2.1.1 shinytest_1.3.1 mime_0.6 compiler_3.5.2
[33] pingr_1.1.2 jsonlite_1.6 httpuv_1.5.1The following problem seems to affect my installation of shinytest in general and is not specific to prerendered R Markdown documents.
> shinytest::recordTest("with-app-dot-r")
Error in process_get_error_connection(self, private) :
stderr is not a pipe.
> traceback()
12: stop("stderr is not a pipe.")
11: process_get_error_connection(self, private)
10: process_read_error_lines(self, private, n)
9: ph$read_error_lines()
8: strwrap(ph$read_error_lines())
7: stop("Cannot start phantom.js, or cannot connect to it", strwrap(ph$read_error_lines()))
6: run_phantomjs(timeout = timeout)
5: get_phantomPort(timeout = phantomTimeout)
4: sd_initialize(self, private, path, loadTimeout, checkNames, debug,
phantomTimeout = phantomTimeout, seed = seed, cleanLogs = cleanLogs,
shinyOptions = shinyOptions)
3: .subset2(public_bind_env, "initialize")(...)
2: ShinyDriver$new(app, seed = seed, loadTimeout = loadTimeout,
shinyOptions = shinyOptions)
1: shinytest::recordTest("example")
> sessionInfo()
R version 3.6.0 (2019-04-26)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Mojave 10.14.3
Matrix products: default
BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRlapack.dylib
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] Rcpp_1.0.1 rstudioapi_0.10 magrittr_1.5
[4] showimage_1.0.0 debugme_1.1.0 xtable_1.8-4
[7] R6_2.4.0 rlang_0.3.4.9003 rematch_1.0.1
[10] httr_1.4.0 webdriver_1.0.5.9000 tools_3.6.0
[13] packrat_0.5.0 parsedate_1.2.0 png_0.1-7
[16] withr_2.1.2 htmltools_0.3.6 assertthat_0.2.1
[19] digest_0.6.19 crayon_1.3.4 processx_3.3.1
[22] shiny_1.3.2 callr_3.2.0 later_0.8.0
[25] base64enc_0.1-3 promises_1.0.1 ps_1.3.0
[28] curl_3.3 testthat_2.1.1.9000 shinytest_1.3.1
[31] mime_0.6 compiler_3.6.0 pingr_1.1.2
[34] jsonlite_1.6 httpuv_1.5.1