Bug 205301 – REGRESSION: [ Mojave+ WK2 ] inspector/canvas/requestShaderSource-webgpu.html is a flakey failure

• Status: NEW
• Component: Web Inspector

[Truitt Savell]

inspector/canvas/requestShaderSource-webgpu.html

This test is a flakey failure on Mojave+ WK2. It appears to have been flakey for as long as this queue has been up. 

History:
https://results.webkit.org/?suite=layout-tests&test=inspector%2Fcanvas%2FrequestShaderSource-webgpu.html

Diff:
--- /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/inspector/canvas/requestShaderSource-webgpu-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk2/build/layout-test-results/inspector/canvas/requestShaderSource-webgpu-actual.txt
@@ -3,44 +3,26 @@
 
 == Running test suite: Canvas.requestShaderSource.WebGPU
 -- Running test case: Canvas.requestShaderSource.WebGPU.Program.compute.Shader.compute
-
-[numthreads(2, 1, 1)]
-compute void computeShader(device float[] buffer : register(u0), float3 threadID : SV_DispatchThreadID) {
-    buffer[uint(threadID.x)] = buffer[uint(threadID.x)] * 2.0;
-}
-
+!! EXCEPTION: Missing shader program
+Stack Trace: #0: (anonymous) ((unknown))
 
 -- Running test case: Canvas.requestShaderSource.WebGPU.Program.compute.Shader.fragment
-PASS: Should produce an exception.
-Error: Missing shader of given shaderType for given programId
+!! EXCEPTION: Missing shader program
+Stack Trace: #0: (anonymous) ((unknown))
 
 -- Running test case: Canvas.requestShaderSource.WebGPU.Program.compute.Shader.vertex
-PASS: Should produce an exception.
-Error: Missing shader of given shaderType for given programId
+!! EXCEPTION: Missing shader program
+Stack Trace: #0: (anonymous) ((unknown))
 
 -- Running test case: Canvas.requestShaderSource.WebGPU.Program.render.Shader.compute
-PASS: Should produce an exception.
-Error: Missing shader of given shaderType for given programId
+!! EXCEPTION: Missing shader program
+Stack Trace: #0: (anonymous) ((unknown))
 
 -- Running test case: Canvas.requestShaderSource.WebGPU.Program.render.Shader.fragment
-
-vertex float4 vertexShader(float4 position : attribute(0), float i : attribute(1)) : SV_Position {
-    return position;
-}
-
-fragment float4 fragmentShader(float4 position : SV_Position) : SV_Target 0 {
-    return position;
-}
-
+!! EXCEPTION: Missing shader program
+Stack Trace: #0: (anonymous) ((unknown))
 
 -- Running test case: Canvas.requestShaderSource.WebGPU.Program.render.Shader.vertex
+!! EXCEPTION: Missing shader program
+Stack Trace: #0: (anonymous) ((unknown))
 
-vertex float4 vertexShader(float4 position : attribute(0), float i : attribute(1)) : SV_Position {
-    return position;
-}
-
-fragment float4 fragmentShader(float4 position : SV_Position) : SV_Target 0 {
-    return position;
-}
-
-

[Radar WebKit Bug Importer]

<rdar://problem/57985881>

[Truitt Savell]

Marked this test as flakey failure while it is investigated

[Truitt Savell]

https://trac.webkit.org/changeset/253586/webkit