1 files changed, 93 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/mix.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/mix.spec.ts
new file mode 100644
index 0000000000..8f0959ed08
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/mix.spec.ts
@@ -0,0 +1,93 @@
+export const description = `
+Execution tests for the 'mix' builtin function
+
+S is AbstractFloat, f32, f16
+T is S or vecN<S>
+@const fn mix(e1: T, e2: T, e3: T) -> T
+Returns the linear blend of e1 and e2 (e.g. e1*(1-e3)+e2*e3). Component-wise when T is a vector.
+
+T is AbstractFloat, f32, or f16
+T2 is vecN<T>
+@const fn mix(e1: T2, e2: T2, e3: T) -> T2
+Returns the component-wise linear blend of e1 and e2, using scalar blending factor e3 for each component.
+Same as mix(e1,e2,T2(e3)).
+
+`;
+
+import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
+import { GPUTest } from '../../../../../gpu_test.js';
+import { TypeF32 } from '../../../../../util/conversion.js';
+import { mixIntervals } from '../../../../../util/f32_interval.js';
+import { sparseF32Range } from '../../../../../util/math.js';
+import { makeCaseCache } from '../../case_cache.js';
+import { allInputSources, generateTernaryToF32IntervalCases, run } from '../../expression.js';
+
+import { builtin } from './builtin.js';
+
+export const g = makeTestGroup(GPUTest);
+
+export const d = makeCaseCache('mix', {
+  f32_const: () => {
+    return generateTernaryToF32IntervalCases(
+      sparseF32Range(),
+      sparseF32Range(),
+      sparseF32Range(),
+      'f32-only',
+      ...mixIntervals
+    );
+  },
+  f32_non_const: () => {
+    return generateTernaryToF32IntervalCases(
+      sparseF32Range(),
+      sparseF32Range(),
+      sparseF32Range(),
+      'unfiltered',
+      ...mixIntervals
+    );
+  },
+});
+
+g.test('matching_abstract_float')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`abstract float tests with matching params`)
+  .params(u =>
+    u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
+  )
+  .unimplemented();
+
+g.test('matching_f32')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`f32 test with matching third param`)
+  .params(u =>
+    u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
+  )
+  .fn(async t => {
+    const cases = await d.get(t.params.inputSource === 'const' ? 'f32_const' : 'f32_non_const');
+    await run(t, builtin('mix'), [TypeF32, TypeF32, TypeF32], TypeF32, t.params, cases);
+  });
+
+g.test('matching_f16')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`f16 tests with matching third param`)
+  .params(u =>
+    u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
+  )
+  .unimplemented();
+
+g.test('nonmatching_abstract_float')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`abstract float tests with vector params and scalar third param`)
+  .params(u => u.combine('inputSource', allInputSources).combine('vectorize', [2, 3, 4] as const))
+  .unimplemented();
+
+g.test('nonmatching_f32')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`f32 tests with vector params and scalar third param`)
+  .params(u => u.combine('inputSource', allInputSources).combine('vectorize', [2, 3, 4] as const))
+  .unimplemented();
+
+g.test('monmatching_f16')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`f16 tests with vector params and scalar third param`)
+  .params(u => u.combine('inputSource', allInputSources).combine('vectorize', [2, 3, 4] as const))
+  .unimplemented();