From 172cd1e8dfd535c6d387176eceb83bea3a75027d Mon Sep 17 00:00:00 2001
From: Corentin Wallez <cwallez@chromium.org>
Date: Tue, 29 Sep 2020 09:47:26 +0000
Subject: [PATCH] TextureFormatTests: Test more Snorm format corner cases.

Bug: None
Change-Id: I02cba96f64d62495e21ba04bb514de9fb1563507
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/29060
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
---
 src/tests/end2end/TextureFormatTests.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/tests/end2end/TextureFormatTests.cpp b/src/tests/end2end/TextureFormatTests.cpp
index fbd0941ca7..f75ab6323a 100644
--- a/src/tests/end2end/TextureFormatTests.cpp
+++ b/src/tests/end2end/TextureFormatTests.cpp
@@ -365,8 +365,9 @@ class TextureFormatTest : public DawnTest {
 
         T maxValue = std::numeric_limits<T>::max();
         T minValue = std::numeric_limits<T>::min();
-        std::vector<T> textureData = {0, 1, maxValue, minValue};
-        std::vector<float> uncompressedData = {0.0f, 1.0f / maxValue, 1.0f, -1.0f};
+        std::vector<T> textureData = {0, 1, -1, maxValue, minValue, T(minValue + 1), 0, 0};
+        std::vector<float> uncompressedData = {
+            0.0f, 1.0f / maxValue, -1.0f / maxValue, 1.0f, -1.0f, -1.0f, 0.0f, 0.0f};
 
         DoFloatFormatSamplingTest(formatInfo, textureData, uncompressedData, 0.0001f / maxValue);
         // Snorm formats aren't renderable because they are not guaranteed renderable in Vulkan