impure-tests: migrate bash to pytest and fix stuff

pkgs/clan-cli/tests/end_to_end/test_basics.py

@@ -0,0 +1,31 @@
+import json
+import subprocess
+from pathlib import Path
+
+import pytest
+from cli import Cli
+
+
+@pytest.mark.impure
+def test_basics(
+    monkeypatch: pytest.MonkeyPatch, temporary_dir: Path, capsys: pytest.CaptureFixture
+) -> None:
+    monkeypatch.chdir(temporary_dir)
+    cli = Cli()
+    cli.run(["create"])
+    assert (temporary_dir / ".clan-flake").exists()
+    cli.run(["machines", "create", "machine1"])
+    capsys.readouterr()  # flush cache
+    cli.run(["machines", "list"])
+    assert "machine1" in capsys.readouterr().out
+    flake_show = subprocess.run(
+        ["nix", "flake", "show", "--json"],
+        check=True,
+        capture_output=True,
+        text=True,
+    )
+    flake_outputs = json.loads(flake_show.stdout)
+    try:
+        flake_outputs["nixosConfigurations"]["machine1"]
+    except KeyError:
+        pytest.fail("nixosConfigurations.machine1 not found in flake outputs")