export const description = `
Execution tests for the 'faceForward' builtin function

T is vecN<AbstractFloat>, vecN<f32>, or vecN<f16>
@const fn faceForward(e1: T ,e2: T ,e3: T ) -> T
Returns e1 if dot(e2,e3) is negative, and -e1 otherwise.
`;

import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { GPUTest } from '../../../../../gpu_test.js';
import { TypeF16, TypeF32, TypeVec } from '../../../../../util/conversion.js';
import { allInputSources, run } from '../../expression.js';

import { builtin } from './builtin.js';
import { d } from './faceForward.cache.js';

export const g = makeTestGroup(GPUTest);

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('faceForward'),
      [TypeVec(2, TypeF32), 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('faceForward'),
      [TypeVec(3, TypeF32), 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('faceForward'),
      [TypeVec(4, TypeF32), TypeVec(4, TypeF32), TypeVec(4, TypeF32)],
      TypeVec(4, TypeF32),
      t.params,
      cases
    );
  });

g.test('f16_vec2')
  .specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
  .desc(`f16 tests using vec2s`)
  .params(u => u.combine('inputSource', allInputSources))
  .beforeAllSubcases(t => {
    t.selectDeviceOrSkipTestCase('shader-f16');
  })
  .fn(async t => {
    const cases = await d.get(
      t.params.inputSource === 'const' ? 'f16_vec2_const' : 'f16_vec2_non_const'
    );
    await run(
      t,
      builtin('faceForward'),
      [TypeVec(2, TypeF16), TypeVec(2, TypeF16), TypeVec(2, TypeF16)],
      TypeVec(2, TypeF16),
      t.params,
      cases
    );
  });

g.test('f16_vec3')
  .specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
  .desc(`f16 tests using vec3s`)
  .params(u => u.combine('inputSource', allInputSources))
  .beforeAllSubcases(t => {
    t.selectDeviceOrSkipTestCase('shader-f16');
  })
  .fn(async t => {
    const cases = await d.get(
      t.params.inputSource === 'const' ? 'f16_vec3_const' : 'f16_vec3_non_const'
    );
    await run(
      t,
      builtin('faceForward'),
      [TypeVec(3, TypeF16), TypeVec(3, TypeF16), TypeVec(3, TypeF16)],
      TypeVec(3, TypeF16),
      t.params,
      cases
    );
  });

g.test('f16_vec4')
  .specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
  .desc(`f16 tests using vec4s`)
  .params(u => u.combine('inputSource', allInputSources))
  .beforeAllSubcases(t => {
    t.selectDeviceOrSkipTestCase('shader-f16');
  })
  .fn(async t => {
    const cases = await d.get(
      t.params.inputSource === 'const' ? 'f16_vec4_const' : 'f16_vec4_non_const'
    );
    await run(
      t,
      builtin('faceForward'),
      [TypeVec(4, TypeF16), TypeVec(4, TypeF16), TypeVec(4, TypeF16)],
      TypeVec(4, TypeF16),
      t.params,
      cases
    );
  });
