1 files changed, 137 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/reflect.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/reflect.spec.ts
new file mode 100644
index 0000000000..a2865e1a85
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/reflect.spec.ts
@@ -0,0 +1,137 @@
+export const description = `
+Execution tests for the 'reflect' builtin function
+
+T is vecN<AbstractFloat>, vecN<f32>, or vecN<f16>
+@const fn reflect(e1: T, e2: T ) -> T
+For the incident vector e1 and surface orientation e2, returns the reflection
+direction e1-2*dot(e2,e1)*e2.
+`;
+
+import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
+import { GPUTest } from '../../../../../gpu_test.js';
+import { TypeF32, TypeVec } from '../../../../../util/conversion.js';
+import { reflectInterval } from '../../../../../util/f32_interval.js';
+import { sparseVectorF32Range } from '../../../../../util/math.js';
+import { makeCaseCache } from '../../case_cache.js';
+import { allInputSources, generateVectorPairToVectorCases, run } from '../../expression.js';
+
+import { builtin } from './builtin.js';
+
+export const g = makeTestGroup(GPUTest);
+
+export const d = makeCaseCache('reflect', {
+  f32_vec2_const: () => {
+    return generateVectorPairToVectorCases(
+      sparseVectorF32Range(2),
+      sparseVectorF32Range(2),
+      'f32-only',
+      reflectInterval
+    );
+  },
+  f32_vec2_non_const: () => {
+    return generateVectorPairToVectorCases(
+      sparseVectorF32Range(2),
+      sparseVectorF32Range(2),
+      'unfiltered',
+      reflectInterval
+    );
+  },
+  f32_vec3_const: () => {
+    return generateVectorPairToVectorCases(
+      sparseVectorF32Range(3),
+      sparseVectorF32Range(3),
+      'f32-only',
+      reflectInterval
+    );
+  },
+  f32_vec3_non_const: () => {
+    return generateVectorPairToVectorCases(
+      sparseVectorF32Range(3),
+      sparseVectorF32Range(3),
+      'unfiltered',
+      reflectInterval
+    );
+  },
+  f32_vec4_const: () => {
+    return generateVectorPairToVectorCases(
+      sparseVectorF32Range(4),
+      sparseVectorF32Range(4),
+      'f32-only',
+      reflectInterval
+    );
+  },
+  f32_vec4_non_const: () => {
+    return generateVectorPairToVectorCases(
+      sparseVectorF32Range(4),
+      sparseVectorF32Range(4),
+      'unfiltered',
+      reflectInterval
+    );
+  },
+});
+
+g.test('abstract_float')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`abstract float tests`)
+  .params(u => u.combine('inputSource', allInputSources).combine('vectorize', [2, 3, 4] as const))
+  .unimplemented();
+
+g.test('f32_vec2')
+  .specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
+  .desc(`f32 tests using vec2s`)
+  .params(u => u.combine('inputSource', allInputSources))
+  .fn(async t => {
+    const cases = await d.get(
+      t.params.inputSource === 'const' ? 'f32_vec2_const' : 'f32_vec2_non_const'
+    );
+    await run(
+      t,
+      builtin('reflect'),
+      [TypeVec(2, TypeF32), TypeVec(2, TypeF32)],
+      TypeVec(2, TypeF32),
+      t.params,
+      cases
+    );
+  });
+
+g.test('f32_vec3')
+  .specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
+  .desc(`f32 tests using vec3s`)
+  .params(u => u.combine('inputSource', allInputSources))
+  .fn(async t => {
+    const cases = await d.get(
+      t.params.inputSource === 'const' ? 'f32_vec3_const' : 'f32_vec3_non_const'
+    );
+    await run(
+      t,
+      builtin('reflect'),
+      [TypeVec(3, TypeF32), TypeVec(3, TypeF32)],
+      TypeVec(3, TypeF32),
+      t.params,
+      cases
+    );
+  });
+
+g.test('f32_vec4')
+  .specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
+  .desc(`f32 tests using vec4s`)
+  .params(u => u.combine('inputSource', allInputSources))
+  .fn(async t => {
+    const cases = await d.get(
+      t.params.inputSource === 'const' ? 'f32_vec4_const' : 'f32_vec4_non_const'
+    );
+    await run(
+      t,
+      builtin('reflect'),
+      [TypeVec(4, TypeF32), TypeVec(4, TypeF32)],
+      TypeVec(4, TypeF32),
+      t.params,
+      cases
+    );
+  });
+
+g.test('f16')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`f16 tests`)
+  .params(u => u.combine('inputSource', allInputSources).combine('vectorize', [2, 3, 4] as const))
+  .unimplemented();