From 08c15a105aef04b8db7d34a8a53b0f7132b94d79 Mon Sep 17 00:00:00 2001
From: Jun Wu <quark@fb.com>
Date: Wed, 17 Jul 2019 20:59:57 -0700
Subject: [PATCH] testutil/dott: normalize error messages

Summary:
run-tests.py uses common-pattern.py to normalize error messages to things
like `$ENOENT$`. Implement that behavior.

Reviewed By: xavierd

Differential Revision: D16209208

fbshipit-source-id: 3e609cc16442f80b844264f93dce9ea46517458d
---
 tests/testutil/dott/shobj.py | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tests/testutil/dott/shobj.py b/tests/testutil/dott/shobj.py
index ee623cdbb0..241e40daf1 100644
--- a/tests/testutil/dott/shobj.py
+++ b/tests/testutil/dott/shobj.py
@@ -157,3 +157,28 @@ _normalizefuncs = []
 
 # Decorator. Add an output normalizing function.
 normalizeoutput = _normalizefuncs.append
+
+
+_errors = {
+    br"$ENOENT$": (
+        # strerror()
+        br"No such file or directory",
+        # FormatMessage(ERROR_FILE_NOT_FOUND)
+        br"The system cannot find the file specified",
+    ),
+    br"$ENOTDIR$": (
+        # strerror()
+        br"Not a directory",
+        # FormatMessage(ERROR_PATH_NOT_FOUND)
+        br"The system cannot find the path specified",
+    ),
+}
+
+
+@normalizeoutput
+def _normalizeerr(out, _errors=_errors):
+    """Translate error messages to '$ENOENT$'"""
+    for name, values in _errors.items():
+        for value in values:
+            out = out.replace(value, name)
+    return out