From 2c0c2d7e77773f7b252dde2818a4d59e52d0f85b Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Thu, 7 Apr 2022 09:25:51 +0200
Subject: Add unit tests.

---
 inst/unitTests/test_guix.install.R |  3 +++
 tests/runUnitTests.R               | 50 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100644 inst/unitTests/test_guix.install.R
 create mode 100644 tests/runUnitTests.R

diff --git a/inst/unitTests/test_guix.install.R b/inst/unitTests/test_guix.install.R
new file mode 100644
index 0000000..f762744
--- /dev/null
+++ b/inst/unitTests/test_guix.install.R
@@ -0,0 +1,3 @@
+test.guix.install <- function () {
+    checkException(guix.install("foo", guix="/doesnot/exist"))
+}
diff --git a/tests/runUnitTests.R b/tests/runUnitTests.R
new file mode 100644
index 0000000..2d56d89
--- /dev/null
+++ b/tests/runUnitTests.R
@@ -0,0 +1,50 @@
+pkgname <- "guix.install"
+subdir <- "unitTests"
+path <- getwd()
+
+.failure_details <- function(result) {
+    res <- result[[1L]]
+    if (res$nFail > 0 || res$nErr > 0) {
+        Filter(function(x) length(x) > 0, lapply(res$sourceFileResults, 
+            function(fileRes) {
+              names(Filter(function(x) x$kind != "success", 
+                fileRes))
+            }))
+    }
+    else list()
+}
+
+root <- system.file(package = pkgname)
+library(pkgname, character.only = TRUE, quietly = TRUE)
+dir <- file.path(root, subdir)
+if (!file.exists(dir)) {
+    dir <- file.path(root, "inst", subdir)
+}
+if (!file.exists(dir)) {
+    stop("unable to find unit tests, no subdir ", sQuote(subdir))
+}
+
+library("RUnit", quietly = TRUE)
+RUnit_opts <- getOption("RUnit", list())
+RUnit_opts$verbose <- 0L
+RUnit_opts$silent <- TRUE
+RUnit_opts$verbose_fail_msg <- TRUE
+oopt <- options(RUnit = RUnit_opts)
+on.exit(options(oopt))
+suite <- RUnit::defineTestSuite(name = paste(pkgname, "RUnit Tests"), 
+    dirs = dir, testFileRegexp = "^test_.*\\.R$", rngKind = "default", 
+    rngNormalKind = "default")
+result <- RUnit::runTestSuite(suite)
+cat("\n\n")
+RUnit::printTextProtocol(result, showDetails = FALSE)
+if (length(details <- .failure_details(result)) > 0) {
+    cat("\nTest files with failing tests\n")
+    for (i in seq_along(details)) {
+        cat("\n  ", basename(names(details)[[i]]), "\n")
+        for (j in seq_along(details[[i]])) {
+            cat("    ", details[[i]][[j]], "\n")
+        }
+    }
+    cat("\n\n")
+    stop("unit tests failed for package ", pkgname)
+}
-- 
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