| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <cmath> |
| |
| #include "flutter/fml/math.h" |
| #include "gtest/gtest.h" |
| |
| namespace flutter { |
| namespace testing { |
| |
| TEST(MathTest, Constants) { |
| // Don't use the constants in cmath as those aren't portable. |
| EXPECT_FLOAT_EQ(std::log2(math::kE), math::kLog2E); |
| EXPECT_FLOAT_EQ(std::log10(math::kE), math::kLog10E); |
| EXPECT_FLOAT_EQ(std::log(2.0f), math::kLogE2); |
| EXPECT_FLOAT_EQ(math::kPi / 2.0f, math::kPiOver2); |
| EXPECT_FLOAT_EQ(math::kPi / 4.0f, math::kPiOver4); |
| EXPECT_FLOAT_EQ(1.0f / math::kPi, math::k1OverPi); |
| EXPECT_FLOAT_EQ(2.0f / math::kPi, math::k2OverPi); |
| EXPECT_FLOAT_EQ(std::sqrt(2.0f), math::kSqrt2); |
| EXPECT_FLOAT_EQ(1.0f / std::sqrt(2.0f), math::k1OverSqrt2); |
| } |
| |
| } // namespace testing |
| } // namespace flutter |
