From fbe729642e5cdd137ffff0e6c9a06819d515de1f Mon Sep 17 00:00:00 2001
From: Felix Hanau <felix@cloudflare.com>
Date: Wed, 26 Jun 2019 13:31:04 +0100
Subject: [PATCH] Add Issue 175 test case

---
 tests/files/issue-175.png | Bin 0 -> 71 bytes
 tests/regression.rs       |  12 ++++++++++++
 2 files changed, 12 insertions(+)
 create mode 100644 tests/files/issue-175.png

diff --git a/tests/files/issue-175.png b/tests/files/issue-175.png
new file mode 100644
index 0000000000000000000000000000000000000000..10d480005ddd55a1220067a84a00d73a1c5af6a6
GIT binary patch
literal 71
zcmeAS@N?(olHy`uVBq!ia0vp^Od!k%Bp7v1F~|dHK2I0N5RU7~83`E)77Pq5#~2U#
TTM3;3$}o7k`njxgN@xNAnO_bW

literal 0
HcmV?d00001

diff --git a/tests/regression.rs b/tests/regression.rs
index a8dbe045..91c73cc7 100644
--- a/tests/regression.rs
+++ b/tests/regression.rs
@@ -610,3 +610,15 @@ fn issue_167() {
         BitDepth::Eight,
     );
 }
+
+#[test]
+fn issue_175() {
+    test_it_converts(
+        "tests/files/issue-175.png",
+        None,
+        ColorType::Grayscale,
+        BitDepth::One,
+        ColorType::Grayscale,
+        BitDepth::One,
+    );
+}