Extension breaks tests: Error in ext[[pkg]] : subscript out of bounds

[vincentarelbundock]

Thanks for your great work on tinytest!

I'm trying to write a tinytest extension package to do simple visual regression tests in my marginaleffects package. I ran into a problem, and I unfortunately can't figure out how to write a simple minimal working example (sorry!).

Extension package: https://github.com/vincentarelbundock/tinyviztest

Relevant test files where I call the new expectation:

• https://github.com/vincentarelbundock/marginaleffects/blob/main/inst/tinytest/test-plot.R
• https://github.com/vincentarelbundock/marginaleffects/blob/main/inst/tinytest/test-plot_cap.R

The error I get:

Error in ext[[pkg]] : subscript out of bounds
Calls: <Anonymous> ... run_test_dir -> lapply -> FUN -> eval -> eval -> using
Execution halted

This error occurs on line 376 of the tinytest.R file.

When I insert a print(ext) and print(pkg) statements in that region and then run build_install_test(pattern = "plot") I get the messy printout below. ext is a list, but one of the names is NA. Perhaps this is causing the problem?

Are there any steps you can suggest that I take to diagnose the problem better?

Thanks!

test-plot_cap.R...............    0 tests    $tinyviztest
[1] "expect_vdiff"

[1] "tinyviztest"
test-plot_cap.R...............   17 tests OK 4.2s
test-plot_cme.R...............    0 tests    $tinyviztest
[1] "expect_vdiff"

$<NA>
 [1] "expect_tibble"           "expect_directory"
 [3] "expect_string"           "expect_character"
 [5] "expect_factor"           "expect_logical"
 [7] "expect_complex"          "expect_atomic"
 [9] "expect_named"            "expect_array"
[11] "expect_numeric"          "expect_class"
[13] "expect_formula"          "expect_path_for_output"
[15] "expect_number"           "expect_function"
[17] "expect_list"             "expect_names"
[19] "expect_posixct"          "expect_data_table"
[21] "expect_scalar_na"        "expect_subset"
[23] "expect_file"             "expect_count"
[25] "expect_int"              "expect_environment"
[27] "expect_data_frame"       "expect_os"
[29] "expect_file_exists"      "expect_disjunct"
[31] "expect_choice"           "expect_r6"
[33] "expect_integer"          "expect_matrix"
[35] "expect_date"             "expect_access"
[37] "expect_raw"              "expect_atomic_vector"
[39] "expect_directory_exists" "expect_integerish"
[41] "expect_scalar"           "expect_null"
[43] "expect_set_equal"        "expect_double"
[45] "expect_flag"             "expect_multi_class"

[1] "tinyviztest" NA
Error in ext[[pkg]] : subscript out of bounds
Calls: run_test_dir -> lapply -> FUN -> eval -> eval -> using
Execution halted
Error in gzfile(file, "rb") : cannot open the connection
In addition: Warning message:
In gzfile(file, "rb") :
  cannot open compressed file '/tmp/RtmpHe8KrE/file79ae21976889/output.RDS', probable reason
'No such file or directory'