1 files changed, 5 insertions, 4 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/compat/api/validation/encoding/cmds/copyTextureToBuffer.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/compat/api/validation/encoding/cmds/copyTextureToBuffer.spec.ts
index a9af7795b3..e7d5164c45 100644
--- a/dom/webgpu/tests/cts/checkout/src/webgpu/compat/api/validation/encoding/cmds/copyTextureToBuffer.spec.ts
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/compat/api/validation/encoding/cmds/copyTextureToBuffer.spec.ts
@@ -19,16 +19,17 @@ g.test('compressed')
   .fn(t => {
     const { format } = t.params;
 
-    const { blockWidth, blockHeight, bytesPerBlock } = kTextureFormatInfo[format];
+    const info = kTextureFormatInfo[format];
 
+    const textureSize = [info.blockWidth, info.blockHeight, 1];
     const texture = t.device.createTexture({
-      size: [blockWidth, blockHeight, 1],
+      size: textureSize,
       format,
       usage: GPUTextureUsage.COPY_SRC,
     });
     t.trackForCleanup(texture);
 
-    const bytesPerRow = align(bytesPerBlock, 256);
+    const bytesPerRow = align(info.color.bytes, 256);
 
     const buffer = t.device.createBuffer({
       size: bytesPerRow,
@@ -37,7 +38,7 @@ g.test('compressed')
     t.trackForCleanup(buffer);
 
     const encoder = t.device.createCommandEncoder();
-    encoder.copyTextureToBuffer({ texture }, { buffer, bytesPerRow }, [blockWidth, blockHeight, 1]);
+    encoder.copyTextureToBuffer({ texture }, { buffer, bytesPerRow }, textureSize);
     t.expectGPUError('validation', () => {
       encoder.finish();
     });