WIP start testing the advanced attrs in the structuredAttrs case too

Author: Ericson2314

tests/unit/libexpr/data/derivation/advanced-attributes-structured-attrs.nix

@@ -0,0 +1,28 @@
+let
+  system = "my-system";
+  foo = derivation {
+    inherit system;
+    name = "foo";
+    builder = "/bin/bash";
+    args = ["-c" "echo foo > $out"];
+  };
+  bar = derivation {
+    inherit system;
+    name = "bar";
+    builder = "/bin/bash";
+    args = ["-c" "echo bar > $out"];
+  };
+in
+derivation {
+  inherit system;
+  name = "hello-again";
+  builder = "/bin/bash";
+  args = [ "-c" "echo hello > $out" ];
+  outputs = [ "out" "dev" ];
+  outputChecks = {
+    out = {
+      allowedReferences = [];
+    };
+  };
+  # TODO add some others
+}