Respond to eval with stdout, stderr, and the return code

The previous implementation limited the client's flexibility in
presenting the results of the process. A process can write to both
stdout and stderr and do so even when the return code is not 0 or 1.

* Return a CompletedProcess from NsJail
* Don't check the return code; this should be done client-side now

1 files changed, 3 insertions, 2 deletions

diff --git a/tests/api/test_eval.py b/tests/api/test_eval.py
index bcd0ec4..03f0e39 100644
--- a/tests/api/test_eval.py
+++ b/tests/api/test_eval.py
@@ -9,8 +9,9 @@ class TestEvalResource(SnekAPITestCase):
         result = self.simulate_post(self.PATH, json=body)
 
         self.assertEqual(result.status_code, 200)
-        self.assertEqual(body["input"], result.json["input"])
-        self.assertEqual("test output", result.json["output"])
+        self.assertEqual("output", result.json["stdout"])
+        self.assertEqual("error", result.json["stderr"])
+        self.assertEqual(0, result.json["returncode"])
 
     def test_post_invalid_schema_400(self):
         body = {"stuff": "foo"}