From f57fb669e9147bc69e2681ce7eeea2ed6294c039 Mon Sep 17 00:00:00 2001
From: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
Date: Tue, 8 Oct 2024 08:20:04 -0700
Subject: [PATCH] Add test coverage for text mode error (#231)

* Add test coverage for text mode error

Error message was added in https://github.com/hukkin/tomli/pull/175

* review
---
 tests/test_misc.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tests/test_misc.py b/tests/test_misc.py
index 76fa5905..0dad4921 100644
--- a/tests/test_misc.py
+++ b/tests/test_misc.py
@@ -31,8 +31,12 @@ def test_incorrect_load(self):
             file_path.write_text(content)
 
             with open(file_path, "r") as txt_f:
-                with self.assertRaises(TypeError):
+                with self.assertRaises(TypeError) as exc_info:
                     tomllib.load(txt_f)  # type: ignore[arg-type]
+            self.assertEqual(
+                str(exc_info.exception),
+                "File must be opened in binary mode, e.g. use `open('foo.toml', 'rb')`",
+            )
 
     def test_parse_float(self):
         doc = """