| /* |
| * Copyright 2020 The Android Open Source Project |
| * |
| * 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 "Fps.h" |
| |
| #include <gmock/gmock.h> |
| #include <gtest/gtest.h> |
| |
| namespace android { |
| |
| TEST(FpsTest, construct) { |
| Fps fpsDefault; |
| EXPECT_FALSE(fpsDefault.isValid()); |
| |
| Fps fps1(60.0f); |
| EXPECT_TRUE(fps1.isValid()); |
| Fps fps2 = Fps::fromPeriodNsecs(static_cast<nsecs_t>(1e9f / 60.0f)); |
| EXPECT_TRUE(fps2.isValid()); |
| EXPECT_TRUE(fps1.equalsWithMargin(fps2)); |
| } |
| |
| TEST(FpsTest, compare) { |
| constexpr float kEpsilon = 1e-4f; |
| const Fps::EqualsInBuckets equalsInBuckets; |
| const Fps::EqualsWithMargin equalsWithMargin; |
| |
| EXPECT_TRUE(Fps(60.0f).equalsWithMargin(Fps(60.f))); |
| EXPECT_TRUE(Fps(60.0f).equalsWithMargin(Fps(60.f - kEpsilon))); |
| EXPECT_TRUE(Fps(60.0f).equalsWithMargin(Fps(60.f + kEpsilon))); |
| |
| EXPECT_TRUE(equalsInBuckets(Fps(60.0f), Fps(60.0f))); |
| EXPECT_TRUE(equalsInBuckets(Fps(60.0f), Fps(60.0f - kEpsilon))); |
| EXPECT_TRUE(equalsInBuckets(Fps(60.0f), Fps(60.0f + kEpsilon))); |
| |
| EXPECT_TRUE(equalsWithMargin(Fps(60.0f), Fps(60.0f))); |
| EXPECT_TRUE(equalsWithMargin(Fps(60.0f), Fps(60.0f - kEpsilon))); |
| EXPECT_TRUE(equalsWithMargin(Fps(60.0f), Fps(60.0f + kEpsilon))); |
| |
| EXPECT_TRUE(Fps(60.0f).lessThanOrEqualWithMargin(Fps(60.f + kEpsilon))); |
| EXPECT_TRUE(Fps(60.0f).lessThanOrEqualWithMargin(Fps(60.f))); |
| EXPECT_TRUE(Fps(60.0f).lessThanOrEqualWithMargin(Fps(60.f - kEpsilon))); |
| |
| EXPECT_TRUE(Fps(60.0f).greaterThanOrEqualWithMargin(Fps(60.f + kEpsilon))); |
| EXPECT_TRUE(Fps(60.0f).greaterThanOrEqualWithMargin(Fps(60.f))); |
| EXPECT_TRUE(Fps(60.0f).greaterThanOrEqualWithMargin(Fps(60.f - kEpsilon))); |
| |
| // Fps with difference of 1 should be different |
| EXPECT_FALSE(Fps(60.0f).equalsWithMargin(Fps(61.f))); |
| EXPECT_TRUE(Fps(60.0f).lessThanWithMargin(Fps(61.f))); |
| EXPECT_TRUE(Fps(60.0f).greaterThanWithMargin(Fps(59.f))); |
| |
| // These are common refresh rates which should be different. |
| EXPECT_FALSE(Fps(60.0f).equalsWithMargin(Fps(59.94f))); |
| EXPECT_TRUE(Fps(60.0f).greaterThanWithMargin(Fps(59.94f))); |
| EXPECT_FALSE(equalsInBuckets(Fps(60.0f), Fps(59.94f))); |
| EXPECT_FALSE(equalsWithMargin(Fps(60.0f), Fps(59.94f))); |
| EXPECT_NE(std::hash<Fps>()(Fps(60.0f)), std::hash<Fps>()(Fps(59.94f))); |
| |
| EXPECT_FALSE(Fps(30.0f).equalsWithMargin(Fps(29.97f))); |
| EXPECT_TRUE(Fps(30.0f).greaterThanWithMargin(Fps(29.97f))); |
| EXPECT_FALSE(equalsInBuckets(Fps(30.0f), Fps(29.97f))); |
| EXPECT_FALSE(equalsWithMargin(Fps(30.0f), Fps(29.97f))); |
| EXPECT_NE(std::hash<Fps>()(Fps(30.0f)), std::hash<Fps>()(Fps(29.97f))); |
| } |
| |
| TEST(FpsTest, getIntValue) { |
| EXPECT_EQ(30, Fps(30.1f).getIntValue()); |
| EXPECT_EQ(31, Fps(30.9f).getIntValue()); |
| EXPECT_EQ(31, Fps(30.5f).getIntValue()); |
| } |
| |
| TEST(FpsTest, equalsInBucketsImpliesEqualHashes) { |
| constexpr float kStep = 1e-4f; |
| const Fps::EqualsInBuckets equals; |
| for (float fps = 30.0f; fps < 31.0f; fps += kStep) { |
| const Fps left(fps); |
| const Fps right(fps + kStep); |
| if (equals(left, right)) { |
| ASSERT_EQ(std::hash<Fps>()(left), std::hash<Fps>()(right)) |
| << "left= " << left << " right=" << right; |
| } |
| } |
| } |
| |
| } // namespace android |