TESTS: Added tests for makeClusterMPI()

DESCRIPTION

@@ -2,14 +2,9 @@ Package: parallelly
 Version: 1.18.0-9000
 Title: Enhancing the 'parallel' Package
 Imports:
-    digest,
     parallel,
+    tools,
     utils
-Suggests:
-    RhpcBLASctl,
-    R.rsp,
-    markdown
-VignetteBuilder: R.rsp
 Authors@R: c(person("Henrik", "Bengtsson", role=c("aut", "cre", "cph"),
                                           email = "[email protected]"))
 Description: Utility functions that enhances the 'parallel' packages and that are used for the built-in parallel backends of the 'future' package.

tests/makeClusterMPI.R

@@ -0,0 +1,29 @@
+source("incl/start.R")
+
+library(parallel)
+
+message("*** makeClusterMPI() ...")
+
+pkg <- "Rmpi"
+if (fullTest && requireNamespace(pkg, quietly = TRUE)) {
+  cl <- makeClusterMPI(2L)
+  str(cl)
+
+  res <- parLapply(cl, X = 1:2, fun = function(x) {
+    list(
+      hostname = Sys.info()[["nodename"]],
+      pid      = Sys.getpid(),
+      value    = x^2
+    )
+  })
+  utils::str(res)
+  y <- vapply(res, FUN = `[[`, "value", FUN.VALUE = NA_real_)
+  stopifnot(identical(y, c(1, 4)))
+
+  stopCluster(cl)
+  str(cl)
+}
+
+message("*** makeClusterMPI() ... DONE")
+
+source("incl/end.R")