1 files changed, 56 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/round.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/round.spec.ts
new file mode 100644
index 0000000000..609ae629ad
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/round.spec.ts
@@ -0,0 +1,56 @@
+export const description = `
+Execution tests for the 'round' builtin function
+
+S is AbstractFloat, f32, f16
+T is S or vecN<S>
+@const fn round(e: T) -> T
+Result is the integer k nearest to e, as a floating point value.
+When e lies halfway between integers k and k+1, the result is k when k is even,
+and k+1 when k is odd.
+Component-wise when T is a vector.
+`;
+
+import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
+import { GPUTest } from '../../../../../gpu_test.js';
+import { TypeF32 } from '../../../../../util/conversion.js';
+import { roundInterval } from '../../../../../util/f32_interval.js';
+import { fullF32Range } from '../../../../../util/math.js';
+import { makeCaseCache } from '../../case_cache.js';
+import { allInputSources, generateUnaryToF32IntervalCases, run } from '../../expression.js';
+
+import { builtin } from './builtin.js';
+
+export const g = makeTestGroup(GPUTest);
+
+export const d = makeCaseCache('round', {
+  f32: () => {
+    return generateUnaryToF32IntervalCases(fullF32Range(), 'unfiltered', roundInterval);
+  },
+});
+
+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', [undefined, 2, 3, 4] as const)
+  )
+  .unimplemented();
+
+g.test('f32')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(`f32 tests`)
+  .params(u =>
+    u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
+  )
+  .fn(async t => {
+    const cases = await d.get('f32');
+    await run(t, builtin('round'), [TypeF32], 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', [undefined, 2, 3, 4] as const)
+  )
+  .unimplemented();