tests: add fake_sudo to sshd fixture

This allows to use the same code for both testing and real-world.

pkgs/clan-cli/clan_cli/ssh/upload.py

@@ -63,7 +63,7 @@ def upload(
                     tar.addfile(tarinfo, f)
 
         sudo = ""
-        if host.user != "root" and os.environ.get("IN_PYTEST") is None:
+        if host.user != "root":
             sudo = "sudo -- "
 
         cmd = "rm -rf $0 && mkdir -m $1 -p $0 && tar -C $0 -xzf -"

pkgs/clan-cli/default.nix

@@ -147,7 +147,6 @@ pythonRuntime.pkgs.buildPythonApplication {
             cd ./src
 
             export NIX_STATE_DIR=$TMPDIR/nix IN_NIX_SANDBOX=1 PYTHONWARNINGS=error
-            export IN_PYTEST=1
 
             # required to prevent concurrent 'nix flake lock' operations
             export CLAN_TEST_STORE=$TMPDIR/store
@@ -199,7 +198,6 @@ pythonRuntime.pkgs.buildPythonApplication {
             export NIX_STATE_DIR=$TMPDIR/nix
             export IN_NIX_SANDBOX=1
             export PYTHONWARNINGS=error
-            export IN_PYTEST=1
             export CLAN_TEST_STORE=$TMPDIR/store
             # required to prevent concurrent 'nix flake lock' operations
             export LOCK_NIX=$TMPDIR/nix_lock

pkgs/clan-cli/tests/sshd.py

@@ -57,7 +57,10 @@ def sshd_config(test_root: Path) -> Iterator[SshdConfig]:
         )
         config = tmpdir / "sshd_config"
         config.write_text(content)
-        login_shell = tmpdir / "shell"
+        bin_path = tmpdir / "bin"
+        login_shell = bin_path / "shell"
+        fake_sudo = bin_path / "sudo"
+        login_shell.parent.mkdir(parents=True)
 
         bash = shutil.which("bash")
         path = os.environ["PATH"]
@@ -65,19 +68,23 @@ def sshd_config(test_root: Path) -> Iterator[SshdConfig]:
 
         login_shell.write_text(
             f"""#!{bash}
+set -x
 if [[ -f /etc/profile ]]; then
   source /etc/profile
 fi
-if [[ -n "$REALPATH" ]]; then
-   export PATH="$REALPATH:${path}"
-else
-   export PATH="${path}"
-fi
+export PATH="{bin_path}:{path}"
 exec {bash} -l "${{@}}"
         """
         )
         login_shell.chmod(0o755)
 
+        fake_sudo.write_text(
+            f"""#!{bash}
+exec "${{@}}"
+        """
+        )
+        fake_sudo.chmod(0o755)
+
         lib_path = None
 
         extension = ".so"