From 299ae3a44c5f831f95985e9dad5685bd1f2d9171 Mon Sep 17 00:00:00 2001
From: Shrek Shao <shrekshao@google.com>
Date: Thu, 7 Dec 2023 17:14:46 -0800
Subject: [PATCH] fix

---
 .../validation/render_pipeline/fragment_state.spec.ts    | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/webgpu/api/validation/render_pipeline/fragment_state.spec.ts b/src/webgpu/api/validation/render_pipeline/fragment_state.spec.ts
index 55bc70ff2be9..6e70fafa19a2 100644
--- a/src/webgpu/api/validation/render_pipeline/fragment_state.spec.ts
+++ b/src/webgpu/api/validation/render_pipeline/fragment_state.spec.ts
@@ -384,12 +384,11 @@ g.test('pipeline_output_targets,blend')
       ] as const)
       .expand('writeMask', function* (p) {
         yield 0;
-        for (let i = 1; i <= p.componentCount; i++) {
-          yield (1 << i) - 1;
-        }
-        if (p.componentCount < 4) {
-          yield 0xf;
+        for (let i = 0; i < p.componentCount; i++) {
+          yield 1 << i;
         }
+        // default full mask
+        yield 0xf;
       })
   )
   .beforeAllSubcases(t => {