Fix Xonsh test

shell.nix

@@ -1,7 +1,7 @@
 let
-  rust = import (builtins.fetchTarball "https://github.com/oxalica/rust-overlay/archive/master.tar.gz");
+  rust = import (builtins.fetchTarball "https://github.com/oxalica/rust-overlay/archive/ad311f5bb5c5ef475985f1e0f264e831470a8510.tar.gz");
   pkgs = import <nixpkgs> { overlays = [ rust ]; };
-  pkgs-latest = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/94e725d3299cbeb71419758d671dfb0771b8e318.tar.gz") {};
+  pkgs-latest = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/1359293549af4f8ca536716d0432f3cdd0afe0c6.tar.gz") {};
   pkgs-python = pkgs-latest.python3.withPackages (pkgs: [ pkgs.black pkgs.mypy pkgs.pylint ]);
 in
 pkgs.mkShell {

src/shell.rs

@@ -356,15 +356,12 @@ mod tests {
         let opts = Opts { cmd, hook, echo, resolve_symlinks };
         let source = Xonsh(&opts).render().unwrap();
 
-        // We can't pass the source directly to `xonsh -c` due to
-        // a bug: <https://github.com/xonsh/xonsh/issues/3959>
+        let tempdir = tempfile::tempdir().unwrap();
+        let tempdir = tempdir.path().to_str().unwrap();
+
         Command::new("xonsh")
-            .args(&[
-                "-c",
-                "import sys; execx(sys.stdin.read(), 'exec', __xonsh__.ctx, filename='zoxide')",
-                "--no-rc",
-            ])
-            .write_stdin(source.as_bytes())
+            .args(&["-c", &source, "--no-rc"])
+            .env("HOME", tempdir)
             .assert()
             .success()
             .stdout("")

templates/xonsh.txt

@@ -1,7 +1,7 @@
 {%- let section = "# =============================================================================\n#" -%}
 {%- let not_configured = "# -- not configured --" -%}
 
-"""Initialize zoxide on Xonsh."""
+# pylint: disable=missing-module-docstring
 
 import builtins  # pylint: disable=unused-import
 import os

templates/zsh.txt

@@ -59,7 +59,7 @@ function __zoxide_z() {
             \builtin printf 'zoxide: $OLDPWD is not set'
             return 1
         fi
-    elif [ "$#" -eq 1 ] &&  [ -d "$1" ]; then
+    elif [ "$#" -eq 1 ] && [ -d "$1" ]; then
         __zoxide_cd "$1"
     else
         \builtin local __zoxide_result