diff --git a/tests/lang/eval-okay-readDir.exp b/tests/lang/eval-okay-readDir.exp
new file mode 100644
index 000000000..bf8d2c14e
--- /dev/null
+++ b/tests/lang/eval-okay-readDir.exp
@@ -0,0 +1 @@
+{ bar = "regular"; foo = "directory"; }
diff --git a/tests/lang/eval-okay-readDir.nix b/tests/lang/eval-okay-readDir.nix
new file mode 100644
index 000000000..a7ec9292a
--- /dev/null
+++ b/tests/lang/eval-okay-readDir.nix
@@ -0,0 +1 @@
+builtins.readDir ./readDir
diff --git a/tests/lang/readDir/bar b/tests/lang/readDir/bar
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/lang/readDir/foo/git-hates-directories b/tests/lang/readDir/foo/git-hates-directories
new file mode 100644
index 000000000..e69de29bb