From cdd8508bc94eb4399857546ebd1b427241829dc2 Mon Sep 17 00:00:00 2001
From: "Commentator2.0" <lix@crystal-cavern.systems>
Date: Mon, 22 Dec 2025 20:34:11 +0100
Subject: [PATCH] tests/functional2: Provide a shortcut to clear a store

Change-Id: Ic28fb8a81ef95a1b83fa8099f5337e89f630f8e1
---
 tests/functional2/testlib/fixtures/nix.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tests/functional2/testlib/fixtures/nix.py b/tests/functional2/testlib/fixtures/nix.py
index c12e56a36..d01105dbd 100644
--- a/tests/functional2/testlib/fixtures/nix.py
+++ b/tests/functional2/testlib/fixtures/nix.py
@@ -286,6 +286,22 @@ class Nix:
         res = self.nix(["hash", "path", actual_path, *args], flake=True).run().ok()
         return res.stdout_plain
 
+    def clear_store(self):
+        """
+        Clears the test-owned store (and state) and resets them to an empty state
+        """
+        nix_store_dir = self.env.dirs.nix_store_dir
+        state_dir = self.env.dirs.nix_state_dir
+
+        # Make store writable
+        Command(["chmod", "-R", "+w", nix_store_dir], self.env).run().ok()
+        shutil.rmtree(nix_store_dir)
+        shutil.rmtree(state_dir)
+
+        # Re-create the directories
+        nix_store_dir.mkdir()
+        state_dir.mkdir()
+
 
 _fully_sandboxed = (
     sys.platform == "linux"