Fix codegen enum symbol inheritance (#558)

* Fix typo

* Add test

Author: ZimmerA

schema_salad/schema.py

@@ -699,7 +699,7 @@ def extend_and_specialize(
             elif stype["type"] == "enum":
                 stype = copy.copy(stype)
                 exsym.extend(stype.get("symbols", []))
-                stype["symbol"] = exsym
+                stype["symbols"] = exsym
 
             types[stype["name"]] = stype
 

schema_salad/tests/test_schema.py

@@ -0,0 +1,34 @@
+from pathlib import Path
+from typing import Any, Dict, List, cast
+
+from schema_salad import schema
+from .util import get_data_uri
+
+cwl_file_uri = get_data_uri("tests/test_schema/CommonWorkflowLanguage.yml")
+
+
+def test_extend_and_specialize_enums(tmp_path: Path) -> None:
+    document_loader, _, _, metaschema_loader = schema.load_schema(cwl_file_uri)
+    schema_raw_doc = metaschema_loader.fetch(cwl_file_uri)
+    schema_doc, _ = metaschema_loader.resolve_all(schema_raw_doc, cwl_file_uri)
+
+    j = schema.extend_and_specialize(
+        cast(List[Dict[str, Any]], schema_doc), document_loader
+    )
+    CWLType = next(
+        (x for x in j if x["name"] == "https://w3id.org/cwl/cwl#CWLType"), None
+    )
+    assert CWLType is not None
+    symbols = [
+        "https://w3id.org/cwl/salad#null",
+        "http://www.w3.org/2001/XMLSchema#boolean",
+        "http://www.w3.org/2001/XMLSchema#int",
+        "http://www.w3.org/2001/XMLSchema#long",
+        "http://www.w3.org/2001/XMLSchema#float",
+        "http://www.w3.org/2001/XMLSchema#double",
+        "http://www.w3.org/2001/XMLSchema#string",
+        "https://w3id.org/cwl/cwl#File",
+        "https://w3id.org/cwl/cwl#Directory",
+    ]
+    for symbol in symbols:
+        assert symbol in CWLType["symbols"]