From b591265a05d177d998e74f50ccb5f2f366402597 Mon Sep 17 00:00:00 2001
From: Sergei Zimmerman <sergei@zimmerman.foo>
Date: Sun, 9 Nov 2025 18:55:11 +0300
Subject: [PATCH] tests/functional: Add tests for builtins.dirOf

These will change in the next commit to fix the silent regression from 2.23
in the handling of multiple subsequent path separators.

(cherry picked from commit 86f090837b07e8dacf8f839f603a44768b2ed999)
---
 .../lang/eval-okay-builtins-dirOf.exp         |  1 +
 .../lang/eval-okay-builtins-dirOf.nix         | 21 +++++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 tests/functional/lang/eval-okay-builtins-dirOf.exp
 create mode 100644 tests/functional/lang/eval-okay-builtins-dirOf.nix

diff --git a/tests/functional/lang/eval-okay-builtins-dirOf.exp b/tests/functional/lang/eval-okay-builtins-dirOf.exp
new file mode 100644
index 000000000..1130b1510
--- /dev/null
+++ b/tests/functional/lang/eval-okay-builtins-dirOf.exp
@@ -0,0 +1 @@
+{ pathDoesntExistNested1 = /totallydoesntexistreally; pathDoesntExistNested2 = /totallydoesntexistreally/subdir1; pathDoesntExistRoot = /; pathRoot = /; stringEmpty = "."; stringMultipleSeps = "a"; stringNoSep = "."; stringRoot = "/"; stringRootA = "/"; stringRootSlash = "//"; stringRootSlashSlash = "///"; stringSingleDir = "a"; stringWithDot = "a/b/c/."; stringWithDotAndDotDot = "a/b/c/../."; stringWithDotAndDotDotSep2 = "a/b/c/../."; stringWithDotDot = "a/b/c/.."; stringWithDotDotSep2 = "a/b/c/.."; stringWithDotSep2 = "a/b/c/."; }
diff --git a/tests/functional/lang/eval-okay-builtins-dirOf.nix b/tests/functional/lang/eval-okay-builtins-dirOf.nix
new file mode 100644
index 000000000..d2eae1c4e
--- /dev/null
+++ b/tests/functional/lang/eval-okay-builtins-dirOf.nix
@@ -0,0 +1,21 @@
+{
+  stringEmpty = dirOf "";
+  stringNoSep = dirOf "filename";
+  stringSingleDir = dirOf "a/b";
+  stringMultipleSeps = dirOf "a///b";
+  stringRoot = dirOf "/";
+  stringRootSlash = dirOf "//";
+  stringRootSlashSlash = dirOf "///";
+  stringRootA = dirOf "/a";
+  stringWithDot = dirOf "a/b/c/./d";
+  stringWithDotSep2 = dirOf "a/b/c/.//d";
+  stringWithDotDot = dirOf "a/b/c/../d";
+  stringWithDotDotSep2 = dirOf "a/b/c/..//d";
+  stringWithDotAndDotDot = dirOf "a/b/c/.././d";
+  stringWithDotAndDotDotSep2 = dirOf "a/b/c/.././/d";
+
+  pathRoot = dirOf /.;
+  pathDoesntExistRoot = dirOf /totallydoesntexistreally;
+  pathDoesntExistNested1 = dirOf /totallydoesntexistreally/subdir1;
+  pathDoesntExistNested2 = dirOf /totallydoesntexistreally/subdir1/subdir2;
+}