From aff38ae80fb4d3371ada8c9026d8d81bc6325aec Mon Sep 17 00:00:00 2001
From: Lucas CHOLLET <lucas.chollet@free.fr>
Date: Wed, 5 Jul 2023 11:19:43 -0400
Subject: [PATCH] Tests: Add a test for grayscale JPEGs with an App14 segment

See af14ed6b2e3 for more details.

This test has been created by artificially adding an App14 segment to an
existing grayscale image.
---
 Tests/LibGfx/TestImageDecoder.cpp                |  10 ++++++++++
 Tests/LibGfx/test-inputs/jpg/grayscale_app14.jpg | Bin 0 -> 686 bytes
 2 files changed, 10 insertions(+)
 create mode 100644 Tests/LibGfx/test-inputs/jpg/grayscale_app14.jpg

diff --git a/Tests/LibGfx/TestImageDecoder.cpp b/Tests/LibGfx/TestImageDecoder.cpp
index 4fbf6ae582..915ef3bd00 100644
--- a/Tests/LibGfx/TestImageDecoder.cpp
+++ b/Tests/LibGfx/TestImageDecoder.cpp
@@ -187,6 +187,16 @@ TEST_CASE(test_jpeg_empty_icc)
     expect_single_frame_of_size(*plugin_decoder, { 80, 80 });
 }
 
+TEST_CASE(test_jpeg_grayscale_with_app14)
+{
+    auto file = MUST(Core::MappedFile::map(TEST_INPUT("jpg/grayscale_app14.jpg"sv)));
+    EXPECT(Gfx::JPEGImageDecoderPlugin::sniff(file->bytes()));
+    auto plugin_decoder = MUST(Gfx::JPEGImageDecoderPlugin::create(file->bytes()));
+    MUST(plugin_decoder->initialize());
+
+    expect_single_frame_of_size(*plugin_decoder, { 80, 80 });
+}
+
 TEST_CASE(test_pbm)
 {
     auto file = MUST(Core::MappedFile::map(TEST_INPUT("pnm/buggie-raw.pbm"sv)));
diff --git a/Tests/LibGfx/test-inputs/jpg/grayscale_app14.jpg b/Tests/LibGfx/test-inputs/jpg/grayscale_app14.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..a67a7edddca76826f454f11b419f422a0be9a9c3
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