From ba3a026f40c68e7b627ac2ff7b62dac014d513fd Mon Sep 17 00:00:00 2001
From: rootile <lix@rootile.de>
Date: Sun, 14 Jun 2026 18:45:40 +0200
Subject: [PATCH] tests: migrate eval-store.sh

Change-Id: Id4a721871218160b441e848f6f252c06187320bf
---
 tests/functional/eval-store.sh                | 50 --------------
 tests/functional/meson.build                  |  1 -
 tests/functional2/eval/test_eval_store.py     | 69 +++++++++++++++++++
 .../functional2/testlib/global_assets/ifd.nix | 10 +++
 4 files changed, 79 insertions(+), 51 deletions(-)
 delete mode 100644 tests/functional/eval-store.sh
 create mode 100644 tests/functional2/eval/test_eval_store.py
 create mode 100644 tests/functional2/testlib/global_assets/ifd.nix

diff --git a/tests/functional/eval-store.sh b/tests/functional/eval-store.sh
deleted file mode 100644
index 9937ecbce..000000000
--- a/tests/functional/eval-store.sh
+++ /dev/null
@@ -1,50 +0,0 @@
-source common.sh
-
-# Using `--eval-store` with the daemon will eventually copy everything
-# to the build store, invalidating most of the tests here
-needLocalStore "“--eval-store” doesn't achieve much with the daemon"
-
-eval_store=$TEST_ROOT/eval-store
-
-clearStore
-rm -rf "$eval_store"
-
-nix build -f dependencies.nix --eval-store "$eval_store" -o "$TEST_ROOT/result"
-[[ -e $TEST_ROOT/result/foobar ]]
-if [[ ! -n "${NIX_TESTS_CA_BY_DEFAULT:-}" ]]; then
-    # Resolved CA derivations are written to store for building
-    #
-    # TODO when we something more systematic
-    # (https://github.com/NixOS/nix/issues/5025) that distinguishes
-    # between scratch storage for building and the final destination
-    # store, we'll be able to make this unconditional again -- resolved
-    # derivations should only appear in the scratch store.
-    (! ls $NIX_STORE_DIR/*.drv)
-fi
-ls $eval_store/nix/store/*.drv
-
-clearStore
-rm -rf "$eval_store"
-
-nix-instantiate dependencies.nix --eval-store "$eval_store"
-(! ls $NIX_STORE_DIR/*.drv)
-ls $eval_store/nix/store/*.drv
-
-clearStore
-rm -rf "$eval_store"
-
-nix-build dependencies.nix --eval-store "$eval_store" -o "$TEST_ROOT/result"
-[[ -e $TEST_ROOT/result/foobar ]]
-if [[ ! -n "${NIX_TESTS_CA_BY_DEFAULT:-}" ]]; then
-    # See above
-    (! ls $NIX_STORE_DIR/*.drv)
-fi
-ls $eval_store/nix/store/*.drv
-
-clearStore
-rm -rf "$eval_store"
-
-# Confirm that import-from-derivation builds on the build store
-[[ $(nix eval --eval-store "$eval_store?require-sigs=false" --impure --raw --file ./ifd.nix) = hi ]]
-ls $NIX_STORE_DIR/*dependencies-top/foobar
-(! ls $eval_store/nix/store/*dependencies-top/foobar)
diff --git a/tests/functional/meson.build b/tests/functional/meson.build
index f938a1fba..b33e4d3a7 100644
--- a/tests/functional/meson.build
+++ b/tests/functional/meson.build
@@ -91,7 +91,6 @@ functional_tests_scripts = [
   'nix-copy-ssh-ng.sh',
   'pre-hook.sh',
   'post-hook.sh',
-  'eval-store.sh',
   'derivation-json.sh',
   'db-migration.sh',
   'bash-profile.sh',
diff --git a/tests/functional2/eval/test_eval_store.py b/tests/functional2/eval/test_eval_store.py
new file mode 100644
index 000000000..8ab4cd47e
--- /dev/null
+++ b/tests/functional2/eval/test_eval_store.py
@@ -0,0 +1,69 @@
+from testlib.utils import get_global_asset
+from testlib.fixtures.file_helper import merge_file_declaration
+from testlib.fixtures.env import ManagedEnv
+from pathlib import Path
+from testlib.fixtures.file_helper import with_files
+from testlib.utils import get_global_asset_pack
+from testlib.fixtures.nix import Nix
+
+
+def assert_only_scratch_drvs(env: ManagedEnv):
+    assert not list(env.dirs.nix_store_dir.glob("*.drv"))
+    assert list((env.dirs.home / "eval_store" / "nix" / "store").glob("*.drv"))
+
+
+@with_files(get_global_asset_pack("dependencies"))
+def test_nix3_build(nix: Nix, files: Path):
+    eval_store = files / "eval_store"
+    res_link = files / "result"
+
+    nix.nix(
+        ["build", "-f", "dependencies.nix", "--eval-store", eval_store, "-o", res_link], flake=True
+    ).run().ok()
+    assert (res_link / "foobar").exists()
+
+    assert_only_scratch_drvs(nix.env)
+
+
+@with_files(get_global_asset_pack("dependencies"))
+def test_nix_instantiate(nix: Nix, files: Path):
+    nix.nix_instantiate(["dependencies.nix", "--eval-store", files / "eval_store"]).run().ok()
+    assert_only_scratch_drvs(nix.env)
+
+
+@with_files(get_global_asset_pack("dependencies"))
+def test_nix_build(nix: Nix, files: Path):
+    res_link = files / "result"
+    nix.nix_build(
+        ["dependencies.nix", "--eval-store", files / "eval_store", "-o", res_link]
+    ).run().ok()
+    assert (res_link / "foobar").exists()
+    assert_only_scratch_drvs(nix.env)
+
+
+@with_files(
+    merge_file_declaration(
+        get_global_asset_pack("dependencies"), {"ifd.nix": get_global_asset("ifd.nix")}
+    )
+)
+def test_import_from_derivation_builds(nix: Nix, files: Path):
+    eval_store = files / "eval_store"
+    res = (
+        nix.nix(
+            [
+                "eval",
+                "--eval-store",
+                f"{eval_store}?require-sigs=false",
+                "--impure",
+                "--raw",
+                "--file",
+                "./ifd.nix",
+            ],
+            flake=True,
+        )
+        .run()
+        .ok()
+    )
+    assert res.stdout_plain == "hi"
+    assert list(nix.env.dirs.nix_store_dir.glob("*dependencies-top/foobar"))
+    assert not list((files / "nix" / "store").glob("*dependencies-top/foobar"))
diff --git a/tests/functional2/testlib/global_assets/ifd.nix b/tests/functional2/testlib/global_assets/ifd.nix
new file mode 100644
index 000000000..d0b9b54ad
--- /dev/null
+++ b/tests/functional2/testlib/global_assets/ifd.nix
@@ -0,0 +1,10 @@
+with import ./config.nix;
+import (
+  mkDerivation {
+    name = "foo";
+    bla = import ./dependencies.nix {};
+    buildCommand = "
+      echo \\\"hi\\\" > $out
+    ";
+  }
+)