chore(3p/nix/tests): Move language test files to src/tests r/1387

These files will be integrated into the evaluator unit tests instead
of running separately via a shell script.

Change-Id: I1d229e73b1d862777f5108c86891689900edefbe
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1275
Tested-by: BuildkiteCI
Reviewed-by: Kane York <rikingcoding@gmail.com>
Reviewed-by: isomer <isomer@tvl.fyi>

1 files changed, 24 insertions, 0 deletions

diff --git a/third_party/nix/src/tests/lang/eval-okay-context-introspection.nix b/third_party/nix/src/tests/lang/eval-okay-context-introspection.nix
new file mode 100644
index 000000000000..43178bd2eef9
--- /dev/null
+++ b/third_party/nix/src/tests/lang/eval-okay-context-introspection.nix
@@ -0,0 +1,24 @@
+let
+  drv = derivation {
+    name = "fail";
+    builder = "/bin/false";
+    system = "x86_64-linux";
+    outputs = [ "out" "foo" ];
+  };
+
+  path = "${./eval-okay-context-introspection.nix}";
+
+  desired-context = {
+    "${builtins.unsafeDiscardStringContext path}" = {
+      path = true;
+    };
+    "${builtins.unsafeDiscardStringContext drv.drvPath}" = {
+      outputs = [ "foo" "out" ];
+      allOutputs = true;
+    };
+  };
+
+  legit-context = builtins.getContext "${path}${drv.outPath}${drv.foo.outPath}${drv.drvPath}";
+
+  constructed-context = builtins.getContext (builtins.appendContext "" desired-context);
+in legit-context == constructed-context