Add test case for disable_error_code config file option (#9538)

Author: amikrop

mypy/config_parser.py

@@ -94,6 +94,8 @@ def check_follow_imports(choice: str) -> str:
     'plugins': lambda s: [p.strip() for p in s.split(',')],
     'always_true': lambda s: [p.strip() for p in s.split(',')],
     'always_false': lambda s: [p.strip() for p in s.split(',')],
+    'disable_error_code': lambda s: [p.strip() for p in s.split(',')],
+    'enable_error_code': lambda s: [p.strip() for p in s.split(',')],
     'package_root': lambda s: [p.strip() for p in s.split(',')],
     'cache_dir': expand_path,
     'python_executable': expand_path,

test-data/unit/check-flags.test

@@ -1078,6 +1078,15 @@ always_true = YOLO1, YOLO
 always_false = BLAH, BLAH1
 [builtins fixtures/bool.pyi]
 
+[case testDisableErrorCodeConfigFile]
+# flags: --config-file tmp/mypy.ini --disallow-untyped-defs
+import foo
+def bar():
+    pass
+[file mypy.ini]
+\[mypy]
+disable_error_code = import, no-untyped-def
+
 [case testCheckDisallowAnyGenericsNamedTuple]
 # flags: --disallow-any-generics
 from typing import NamedTuple