From 88b21e725432d418e56bdf0721f8581d14a24e40 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Tue, 25 Jun 2024 21:38:47 +1000
Subject: [PATCH] Added test

---
 Tests/images/unknown_mode.j2k | Bin 0 -> 318 bytes
 Tests/test_file_jpeg2k.py     |   6 ++++++
 2 files changed, 6 insertions(+)
 create mode 100644 Tests/images/unknown_mode.j2k

diff --git a/Tests/images/unknown_mode.j2k b/Tests/images/unknown_mode.j2k
new file mode 100644
index 0000000000000000000000000000000000000000..38719fe2561bb1341b69ed96e63f23bfb2c45d58
GIT binary patch
literal 318
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zstk<IMX8A;sVNFcl?wg^sd-)juI>tDsYS(^`FRRPdM0`X|0ghTfsHc&YM*@mj{y%C
z&*TFPKN$`%2pnLLWnpJ#2J#pWFjxuje6;1!2CHWT>M%yAuLr4Lz#z||z{q}pp+?Dp
z!AgXIp@Yf&e?50US3Ot@6HtpOiWZ>pKx8N2z|717u|m*+fun)v&wOrsUWg`Upe8ef
jCVQaa3P6|eFfc!4VPpo{^^*x=R||JSd_8wE<NuogGDlDZ

literal 0
HcmV?d00001

diff --git a/Tests/test_file_jpeg2k.py b/Tests/test_file_jpeg2k.py
index ed7ea4fcf..95b9b967b 100644
--- a/Tests/test_file_jpeg2k.py
+++ b/Tests/test_file_jpeg2k.py
@@ -335,6 +335,12 @@ def test_issue_6194() -> None:
         assert im.getpixel((5, 5)) == 31
 
 
+def test_unknown_j2k_mode() -> None:
+    with pytest.raises(UnidentifiedImageError):
+        with Image.open("Tests/images/unknown_mode.j2k"):
+            pass
+
+
 def test_unbound_local() -> None:
     # prepatch, a malformed jp2 file could cause an UnboundLocalError exception.
     with pytest.raises(OSError):