| /* |
| * Copyright 2019 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. |
| */ |
| |
| package androidx.ui.unit |
| |
| import androidx.compose.ui.geometry.Offset |
| import com.google.common.truth.Truth |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @RunWith(JUnit4::class) |
| class VelocityTest { |
| |
| private val velocity1 = Velocity(pixelsPerSecond = Offset(3f, -7f)) |
| private val velocity2 = Velocity(pixelsPerSecond = Offset(5f, 13f)) |
| |
| @Test |
| fun operatorUnaryMinus() { |
| Truth.assertThat(-velocity1) |
| .isEqualTo(Velocity(pixelsPerSecond = Offset(-3f, 7f))) |
| Truth.assertThat(-velocity2) |
| .isEqualTo(Velocity(pixelsPerSecond = Offset(-5f, -13f))) |
| } |
| |
| @Test |
| fun operatorPlus() { |
| Truth.assertThat(velocity2 + velocity1) |
| .isEqualTo(Velocity(pixelsPerSecond = Offset(8f, 6f))) |
| Truth.assertThat(velocity1 + velocity2) |
| .isEqualTo(Velocity(pixelsPerSecond = Offset(8f, 6f))) |
| } |
| |
| @Test |
| fun operatorMinus() { |
| Truth.assertThat(velocity1 - velocity2) |
| .isEqualTo(Velocity(pixelsPerSecond = Offset(-2f, -20f))) |
| Truth.assertThat(velocity2 - velocity1) |
| .isEqualTo(Velocity(pixelsPerSecond = Offset(2f, 20f))) |
| } |
| } |