ci: move regression_tests.R to testthat subdirectory to avoid execution by `R CMD CHECK`

Refs #69

.gitlab-ci.yml

@@ -34,9 +34,10 @@ default:
 .regression:
   stage: regression
   script:
-    - Rscript tests/regression_tests.R stable
-    - Rscript tests/regression_tests.R dev
-    - Rscript tests/regression_tests.R compare
+    - Rscript tests/testthat/regression_tests.R stable
+    - R CMD INSTALL .
+    - Rscript tests/testthat/regression_tests.R dev
+    - Rscript tests/testthat/regression_tests.R compare
 
 .check_not_cran:
   stage: tests

tests/testthat/helper_regression.R

@@ -10,7 +10,6 @@ StoreDevExampleResults <- function(
   package = "airGR", 
   path = file.path("tests/tmp", Sys.getenv("R_VERSION"), "dev"), 
   ...) {
-  devtools::install()
   StoreExampleResults(package = package, path = path, ...)
 }
 

tests/testthat/regression.R

@@ -38,7 +38,7 @@ if (dir.exists(file.path(tmp_path, "stable")) & dir.exists(file.path(tmp_path, "
   lapply(X = refVarFiles, CompareWithStable, testDir = file.path(tmp_path, "dev"), regIgnore = regIgnore)
 } else {
   stop("Regression tests compared to released version needs that you run the following instructions first:\n",
-          "Rscript -e 'source(\"tests/testthat/store_examples.R\"); StoreStableExampleResults(\"airGR\");'\n",
-          "R CMD INSTALL .\n",
-          "Rscript -e 'source(\"tests/testthat/store_examples.R\"); StoreDevExampleResults(\"airGR\");'\n")
+       "Rscript tests/testthat/regression_tests.R stable\n",
+       "R CMD INSTALL .\n",
+       "Rscript tests/testthat/regression_tests.R dev")
 }