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

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=205301

            Bug ID: 205301
           Summary: REGRESSION: [ Mojave+ WK2 ]
                    inspector/canvas/requestShaderSource-webgpu.html is a
                    flakey failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tsavell at apple.com
                CC: inspector-bugzilla-changes at group.apple.com

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;
-}
-
-

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