enh: enforce info.json schema

Adds a test that both:
  - ensures that LS_FIELD_CHOICES represents all info.json fields
  - ensure that info.json fields have not changed (which would require a
    version bump, and a change to the field transformations)

src/con_duct/suite/ls.py

@@ -44,6 +44,9 @@
     "num_samples",
     "num_reports",
     "stderr",
+    "stdout",
+    "cpu_total",
+    "logs_prefix",
     "usage",
     "info",
     "prefix",
@@ -72,10 +75,14 @@ def load_duct_runs(
                         f"is below minimum schema version {MINIMUM_SCHEMA_VERSION}."
                     )
                     continue
-                if eval_filter is not None and not (eval_results := eval(
-                    eval_filter, _flatten_dict(this), dict(re=re)
-                )):
-                    lgr.debug("Filtering out %s due to filter results matching: %s", this, eval_results)
+                if eval_filter is not None and not (
+                    eval_results := eval(eval_filter, _flatten_dict(this), dict(re=re))
+                ):
+                    lgr.debug(
+                        "Filtering out %s due to filter results matching: %s",
+                        this,
+                        eval_results,
+                    )
                     continue
 
                 loaded.append(this)

test/test_schema.py

@@ -0,0 +1,31 @@
+import json
+import os
+from pathlib import Path
+from con_duct.__main__ import Arguments, execute
+from con_duct.suite.ls import LS_FIELD_CHOICES, _flatten_dict
+
+
+def test_info_fields(temp_output_dir: str) -> None:
+    """
+    Generate the list of fields users can request when viewing info files.
+
+    Fails when schema changes-- commit the new version and bump schema version
+    """
+    args = Arguments.from_argv(
+        ["echo", "hello", "world"],
+        sample_interval=4.0,
+        report_interval=60.0,
+        output_prefix=temp_output_dir,
+        clobber=True,
+    )
+    # Execute duct
+    assert execute(args) == 0  # exit_code
+    os.remove(Path(temp_output_dir, "stdout"))
+    os.remove(Path(temp_output_dir, "stderr"))
+    os.remove(Path(temp_output_dir, "usage.json"))
+
+    info_file = Path(temp_output_dir, "info.json")
+    actual_info_schema = _flatten_dict(json.loads(info_file.read_text())).keys()
+    os.remove(info_file)
+
+    assert set(actual_info_schema) == set(LS_FIELD_CHOICES)