clan-cli: Add CLAN_TEST_STORE env var to clan-pytest-without-core

pkgs/clan-cli/default.nix

@@ -130,11 +130,18 @@ pythonRuntime.pkgs.buildPythonApplication {
       clan-pytest-without-core =
         runCommand "clan-pytest-without-core" { nativeBuildInputs = testDependencies; }
           ''
+            set -ux -o pipefail
             cp -r ${source} ./src
             chmod +w -R ./src
             cd ./src
 
             export NIX_STATE_DIR=$TMPDIR/nix IN_NIX_SANDBOX=1 PYTHONWARNINGS=error
+
+            # required to prevent concurrent 'nix flake lock' operations
+            export CLAN_TEST_STORE=$TMPDIR/store
+            export LOCK_NIX=$TMPDIR/nix_lock
+            mkdir -p "$CLAN_TEST_STORE/nix/store"
+
             python -m pytest -m "not impure and not with_core" ./tests
             touch $out
           '';
@@ -158,6 +165,7 @@ pythonRuntime.pkgs.buildPythonApplication {
             };
           }
           ''
+            set -ux -o pipefail
             cp -r ${source} ./src
             chmod +w -R ./src
             cd ./src

pkgs/clan-cli/tests/test_clan_nix_attrset.py

@@ -5,10 +5,8 @@ from pathlib import Path
 from typing import Any
 
 import pytest
-from clan_cli.cmd import run
 from clan_cli.flake import Flake
 from clan_cli.locked_open import locked_open
-from clan_cli.nix import nix_command
 from clan_cli.templates import (
     InputName,
     TemplateName,
@@ -77,26 +75,6 @@ def test_clan_core_templates(
         f.write(data)
 
 
-def test_copy_from_nixstore_symlink(
-    monkeypatch: pytest.MonkeyPatch, temporary_home: Path
-) -> None:
-    src = temporary_home / "src"
-    src.mkdir()
-    (src / "file.txt").write_text("magicstring!")
-    res = run(nix_command(["store", "add", str(src)]))
-    src_nix = Path(res.stdout.strip())
-    src2 = temporary_home / "src2"
-    src2.mkdir()
-    (src2 / "file.txt").symlink_to(src_nix / "file.txt")
-    res = run(nix_command(["store", "add", str(src2)]))
-    src2_nix = Path(res.stdout.strip())
-    dest = temporary_home / "dest"
-    copy_from_nixstore(src2_nix, dest)
-    assert (dest / "file.txt").exists()
-    assert (dest / "file.txt").read_text() == "magicstring!"
-    assert (dest / "file.txt").is_symlink()
-
-
 # Test Case 1: Minimal input with empty templates
 @pytest.mark.impure
 def test_clan_get_nix_attrset_case_1(