| // Copyright 2020 The Tint Authors. |
| // |
| // 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. |
| |
| #include "src/writer/float_to_string.h" |
| |
| #include <limits> |
| |
| #include "gtest/gtest.h" |
| |
| namespace tint { |
| namespace writer { |
| namespace { |
| |
| TEST(FloatToStringTest, Zero) { |
| EXPECT_EQ(FloatToString(0.0f), "0.0"); |
| } |
| |
| TEST(FloatToStringTest, One) { |
| EXPECT_EQ(FloatToString(1.0f), "1.0"); |
| } |
| |
| TEST(FloatToStringTest, MinusOne) { |
| EXPECT_EQ(FloatToString(-1.0f), "-1.0"); |
| } |
| |
| TEST(FloatToStringTest, Billion) { |
| EXPECT_EQ(FloatToString(1e9f), "1000000000.0"); |
| } |
| |
| TEST(FloatToStringTest, Small) { |
| EXPECT_NE(FloatToString(std::numeric_limits<float>::epsilon()), "0.0"); |
| } |
| |
| TEST(FloatToStringTest, Highest) { |
| if (std::numeric_limits<float>::max() != |
| 340282346638528859811704183484516925440.0f) { |
| GTEST_SKIP() << "std::numeric_limits<float>::max() is not as expected for " |
| "this target"; |
| } |
| EXPECT_EQ(FloatToString(std::numeric_limits<float>::max()), |
| "340282346638528859811704183484516925440.0"); |
| } |
| |
| TEST(FloatToStringTest, Lowest) { |
| if (std::numeric_limits<float>::lowest() != |
| -340282346638528859811704183484516925440.0f) { |
| GTEST_SKIP() |
| << "std::numeric_limits<float>::lowest() is not as expected for " |
| "this target"; |
| } |
| EXPECT_EQ(FloatToString(std::numeric_limits<float>::lowest()), |
| "-340282346638528859811704183484516925440.0"); |
| } |
| |
| } // namespace |
| } // namespace writer |
| } // namespace tint |