R Under development (unstable) (2023-06-09 r84528 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> if (require("testthat")) {
+   library(ggeffects)
+ 
+   if (length(strsplit(packageDescription("ggeffects")$Version, ".", fixed = TRUE)[[1]]) > 3) {
+     Sys.setenv("RunAllggeffectsTests" = "yes")
+   } else {
+     Sys.setenv("RunAllggeffectsTests" = "no")
+   }
+ 
+ 
+   si <- Sys.info()
+ 
+   osx <- tryCatch(
+     {
+       if (!is.null(si["sysname"])) {
+         si["sysname"] == "Darwin" || startsWith(R.version$os, "darwin")
+       } else {
+         FALSE
+       }
+     },
+     error = function(e) {
+       FALSE
+     }
+   )
+ 
+ 
+   solaris <- tryCatch(
+     {
+       if (!is.null(si["sysname"])) {
+         grepl("SunOS", si["sysname"], ignore.case = TRUE)
+       } else {
+         FALSE
+       }
+     },
+     error = function(e) {
+       FALSE
+     }
+   )
+ 
+   if (!osx && !solaris) {
+     test_check("ggeffects")
+   }
+ }
Loading required package: testthat
(Intercept)    tensionM    tensionH 
   36.38889   -10.00000   -14.72222 

Not all rows are shown in the ouput. Use `print(..., n = Inf)` to show
  all rows.

Not all rows are shown in the ouput. Use `print(..., n = Inf)` to show
  all rows.
Data were 'prettified'. Consider using `terms="c12hour [all]"` to get
  smooth plots.
Can't compute marginal effects, 'effects::Effect()' returned an error.

Reason: NA/NaN/Inf in 'y'
You may try 'ggpredict()' or 'ggemmeans()'.

Data were 'prettified'. Consider using `terms="c12hour [all]"` to get
  smooth plots.
The variance-covariance matrix is not positive definite. Returning the
  nearest positive definite matrix now.
  This ensures that eigenvalues are all positive real numbers, and
  thereby, for instance, it is possible to calculate standard errors for
  all relevant parameters.
The variance-covariance matrix is not positive definite. Returning the
  nearest positive definite matrix now.
  This ensures that eigenvalues are all positive real numbers, and
  thereby, for instance, it is possible to calculate standard errors for
  all relevant parameters.
Can't compute marginal effects, 'effects::Effect()' returned an error.

Reason: Invalid operation on a survival time
You may try 'ggpredict()' or 'ggemmeans()'.

Can't compute marginal effects, 'effects::Effect()' returned an error.

Reason: non-conformable arguments
You may try 'ggpredict()' or 'ggemmeans()'.

[ FAIL 0 | WARN 0 | SKIP 25 | PASS 397 ]

══ Skipped tests ═══════════════════════════════════════════════════════════════
• On CRAN (15)
• empty test (9)
• packageVersion("insight") <= "0.19.2" is TRUE (1)

[ FAIL 0 | WARN 0 | SKIP 25 | PASS 397 ]
> 
> proc.time()
   user  system elapsed 
  72.18    2.09   74.29