testing: migrate pass-as-file.sh

Change-Id: I9c3a940ede9353e977e60e0650eaa5a64cc6fa5e

tests/functional/meson.build

@@ -103,7 +103,6 @@ functional_tests_scripts = [
   'selfref-gc.sh',
   'db-migration.sh',
   'bash-profile.sh',
-  'pass-as-file.sh',
   'store-ping.sh',
   'flakes/show.sh',
   'path-from-hash-part.sh',

tests/functional/pass-as-file.sh

@@ -1,18 +0,0 @@
-source common.sh
-
-clearStore
-
-outPath=$(nix-build --no-out-link -E "
-with import ./config.nix;
-
-mkDerivation {
-  name = \"pass-as-file\";
-  passAsFile = [ \"foo\" ];
-  foo = [ \"xyzzy\" ];
-  builder = builtins.toFile \"builder.sh\" ''
-    [ \"\$(basename \$fooPath)\" = .attr-1bp7cri8hplaz6hbz0v4f0nl44rl84q1sg25kgwqzipzd1mv89ic ]
-    [ \"\$(cat \$fooPath)\" = xyzzy ]
-    touch \$out
-  '';
-}
-")

tests/functional2/build/test_pass_as_file.py

@@ -0,0 +1,26 @@
+from testlib.fixtures.nix import Nix
+from testlib.utils import get_global_asset
+from testlib.fixtures.file_helper import File, with_files
+
+
+@with_files(
+    {
+        "config.nix": get_global_asset("config.nix"),
+        "default.nix": File("""
+            with import ./config.nix;
+
+            mkDerivation {
+              name = "pass-as-file";
+              passAsFile = [ "foo" ];
+              foo = [ "xyzzy" ];
+              builder = builtins.toFile "builder.sh" ''
+                [ "$(basename $fooPath)" = .attr-1bp7cri8hplaz6hbz0v4f0nl44rl84q1sg25kgwqzipzd1mv89ic ]
+                [ "$(cat $fooPath)" = xyzzy ]
+                touch $out
+              '';
+            }
+        """),
+    }
+)
+def test_pass_as_file(nix: Nix):
+    nix.nix_build([]).run().ok()