/* Copyright 2019 Google LLC. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

// This test contains cheap test cases, completes in a few seconds.

#include <vector>

#include "ruy/test.h"

namespace ruy {

using LhsScalar = RUY_TEST_LHSSCALAR;
using RhsScalar = RUY_TEST_RHSSCALAR;
using AccumScalar = RUY_TEST_ACCUMSCALAR;
using DstScalar = RUY_TEST_DSTSCALAR;

using TestSetType = TestSet<LhsScalar, RhsScalar, AccumScalar, DstScalar>;

TEST(RuyTest, TestSquareMuls) {
  const std::vector<int> sizes{
      // small sizes
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8,
      9,
      10,
      // multiplies of 16
      16,
      32,
      48,
      64,
      // pot-minus-1 sizes
      15,
      31,
      63,
      // pot-plus-1 sizes
      17,
      33,
      65,
  };

  for (int size : sizes) {
    TestRCC<TestSetType>(size, size, size);
    TestLinearAllOrders<TestSetType>(size, size, size);
  }
}

TEST(RuyTest, TestMiscMuls) {
  const int shapes[][3] = {
      {2, 3, 4},    {7, 6, 5},    {12, 23, 6},  {19, 3, 11},   {3, 10, 17},
      {30, 21, 43}, {7, 57, 9},   {49, 69, 71}, {38, 111, 29}, {87, 98, 76},
      {16, 96, 16}, {16, 88, 16}, {16, 84, 16}, {16, 92, 16},  {16, 82, 16},
      {16, 81, 16}, {16, 95, 16}, {3, 128, 5}};
  for (const auto& shape : shapes) {
    TestLinearAllOrders<TestSetType>(shape[0], shape[1], shape[2]);
  }
}

TEST(RuyTest, TestDeepMuls) {
  // TODO(b/137649322): clarify what's the max allowed matrix size.
  TestRCC<TestSetType>(1, 32767, 1);
  TestLinearAllOrders<TestSetType>(5, 5001, 4);
  TestLinearAllOrders<TestSetType>(9, 1025, 10);
}

TEST(RuyTest, TestShallowMuls) {
  TestLinearAllOrders<TestSetType>(101, 1, 103);
  TestLinearAllOrders<TestSetType>(71, 2, 53);
  TestLinearAllOrders<TestSetType>(51, 3, 73);
  TestLinearAllOrders<TestSetType>(51, 4, 43);
}

TEST(RuyTest, TestNarrowMuls) {
  for (int width : {1, 2, 3, 4, 5, 8}) {
    TestLinearAllOrders<TestSetType>(width, 12, 13);
    TestLinearAllOrders<TestSetType>(15, 19, width);
    TestLinearAllOrders<TestSetType>(width, 123, 137);
    TestLinearAllOrders<TestSetType>(158, 119, width);
  }
}

TEST(RuyTest, TestGEMV) {
  for (int size = 1; size < 1024; size *= 2) {
    for (int depth = 1; depth < 500; depth += 47) {
      TestLinearAllOrders<TestSetType>(size, depth, 1);
    }
  }
  TestLinearAllOrders<TestSetType>(5, 5001, 1);
  TestLinearAllOrders<TestSetType>(8193, 17, 1);
}

}  // namespace ruy