| /* |
| * Copyright 2018 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. |
| */ |
| |
| /* |
| * Copyright 2018 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.rendering |
| |
| import androidx.ui.rendering.box.BoxConstraints |
| import org.junit.Assert.assertEquals |
| import org.junit.Assert.assertNotEquals |
| import org.junit.Assert.assertNull |
| import org.junit.Assert.assertTrue |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @RunWith(JUnit4::class) |
| class BoxConstraintsTest { |
| |
| companion object { |
| private const val DELTA = 0.01f |
| } |
| |
| @Test |
| fun `BoxConstraints toString`() { |
| assertTrue(BoxConstraints.expand().toString().contains("biggest")) |
| assertTrue(BoxConstraints().toString().contains("unconstrained")) |
| assertTrue(BoxConstraints.tightFor(width = 50.0f).toString().contains("w=50")) |
| } |
| |
| @Test |
| fun `BoxConstraints copyWith`() { |
| val constraints = BoxConstraints( |
| minWidth = 3.0f, |
| maxWidth = 7.0f, |
| minHeight = 11.0f, |
| maxHeight = 17.0f |
| ) |
| var copy = constraints.copyWith() |
| assertEquals(constraints, copy) |
| copy = constraints.copyWith( |
| minWidth = 13.0f, |
| maxWidth = 17.0f, |
| minHeight = 111.0f, |
| maxHeight = 117.0f |
| ) |
| assertEquals(13.0f, copy.minWidth, DELTA) |
| assertEquals(17.0f, copy.maxWidth, DELTA) |
| assertEquals(111.0f, copy.minHeight, DELTA) |
| assertEquals(117.0f, copy.maxHeight, DELTA) |
| assertNotEquals(constraints, copy) |
| assertNotEquals(constraints.hashCode(), copy.hashCode()) |
| } |
| |
| @Test |
| fun `BoxConstraints operators`() { |
| val constraints = BoxConstraints( |
| minWidth = 3.0f, |
| maxWidth = 7.0f, |
| minHeight = 11.0f, |
| maxHeight = 17.0f |
| ) |
| var copy = constraints * 2.0f |
| assertEquals(6.0f, copy.minWidth, DELTA) |
| assertEquals(14.0f, copy.maxWidth, DELTA) |
| assertEquals(22.0f, copy.minHeight, DELTA) |
| assertEquals(34.0f, copy.maxHeight, DELTA) |
| assertEquals(constraints, copy / 2.0f) |
| copy = constraints.truncDiv(2.0f) |
| assertEquals(1.0f, copy.minWidth, DELTA) |
| assertEquals(3.0f, copy.maxWidth, DELTA) |
| assertEquals(5.0f, copy.minHeight, DELTA) |
| assertEquals(8.0f, copy.maxHeight, DELTA) |
| copy = constraints % 3.0f |
| assertEquals(0.0f, copy.minWidth, DELTA) |
| assertEquals(1.0f, copy.maxWidth, DELTA) |
| assertEquals(2.0f, copy.minHeight, DELTA) |
| assertEquals(2.0f, copy.maxHeight, DELTA) |
| } |
| |
| @Test |
| fun `BoxConstraints lerp`() { |
| assertNull(BoxConstraints.lerp(null, null, 0.5f)) |
| val constraints = BoxConstraints( |
| minWidth = 3.0f, |
| maxWidth = 7.0f, |
| minHeight = 11.0f, |
| maxHeight = 17.0f |
| ) |
| var copy = BoxConstraints.lerp(null, constraints, 0.5f)!! |
| assertEquals(1.5f, copy.minWidth, DELTA) |
| assertEquals(3.5f, copy.maxWidth, DELTA) |
| assertEquals(5.5f, copy.minHeight, DELTA) |
| assertEquals(8.5f, copy.maxHeight, DELTA) |
| copy = BoxConstraints.lerp(constraints, null, 0.5f)!! |
| assertEquals(1.5f, copy.minWidth, DELTA) |
| assertEquals(3.5f, copy.maxWidth, DELTA) |
| assertEquals(5.5f, copy.minHeight, DELTA) |
| assertEquals(8.5f, copy.maxHeight, DELTA) |
| copy = BoxConstraints.lerp(BoxConstraints( |
| minWidth = 13.0f, |
| maxWidth = 17.0f, |
| minHeight = 111.0f, |
| maxHeight = 117.0f |
| ), constraints, 0.2f)!! |
| assertEquals(11.0f, copy.minWidth, DELTA) |
| assertEquals(15.0f, copy.maxWidth, DELTA) |
| assertEquals(91.0f, copy.minHeight, DELTA) |
| assertEquals(97.0f, copy.maxHeight, DELTA) |
| } |
| |
| @Test |
| fun `BoxConstraints lerp with unbounded width`() { |
| val constraints1 = BoxConstraints( |
| minWidth = Float.POSITIVE_INFINITY, |
| maxWidth = Float.POSITIVE_INFINITY, |
| minHeight = 10.0f, |
| maxHeight = 20.0f |
| ) |
| val constraints2 = BoxConstraints( |
| minWidth = Float.POSITIVE_INFINITY, |
| maxWidth = Float.POSITIVE_INFINITY, |
| minHeight = 20.0f, |
| maxHeight = 30.0f |
| ) |
| val constraints3 = BoxConstraints( |
| minWidth = Float.POSITIVE_INFINITY, |
| maxWidth = Float.POSITIVE_INFINITY, |
| minHeight = 15.0f, |
| maxHeight = 25.0f |
| ) |
| assertEquals(BoxConstraints.lerp(constraints1, constraints2, 0.5f), constraints3) |
| } |
| |
| @Test |
| fun `BoxConstraints lerp with unbounded height`() { |
| val constraints1 = BoxConstraints( |
| minWidth = 10.0f, |
| maxWidth = 20.0f, |
| minHeight = Float.POSITIVE_INFINITY, |
| maxHeight = Float.POSITIVE_INFINITY |
| ) |
| val constraints2 = BoxConstraints( |
| minWidth = 20.0f, |
| maxWidth = 30.0f, |
| minHeight = Float.POSITIVE_INFINITY, |
| maxHeight = Float.POSITIVE_INFINITY |
| ) |
| val constraints3 = BoxConstraints( |
| minWidth = 15.0f, |
| maxWidth = 25.0f, |
| minHeight = Float.POSITIVE_INFINITY, |
| maxHeight = Float.POSITIVE_INFINITY |
| ) |
| assertEquals(BoxConstraints.lerp(constraints1, constraints2, 0.5f), constraints3) |
| } |
| |
| @Test(expected = AssertionError::class) |
| fun `BoxConstraints lerp from bounded to unbounded 1`() { |
| val constraints1 = BoxConstraints( |
| minWidth = Float.POSITIVE_INFINITY, |
| maxWidth = Float.POSITIVE_INFINITY, |
| minHeight = Float.POSITIVE_INFINITY, |
| maxHeight = Float.POSITIVE_INFINITY |
| ) |
| val constraints2 = BoxConstraints( |
| minWidth = 20.0f, |
| maxWidth = 30.0f, |
| minHeight = Float.POSITIVE_INFINITY, |
| maxHeight = Float.POSITIVE_INFINITY |
| ) |
| BoxConstraints.lerp(constraints1, constraints2, 0.5f) |
| } |
| |
| @Test(expected = AssertionError::class) |
| fun `BoxConstraints lerp from bounded to unbounded 2`() { |
| val constraints1 = BoxConstraints( |
| minWidth = Float.POSITIVE_INFINITY, |
| maxWidth = Float.POSITIVE_INFINITY, |
| minHeight = Float.POSITIVE_INFINITY, |
| maxHeight = Float.POSITIVE_INFINITY |
| ) |
| val constraints3 = BoxConstraints( |
| minWidth = Float.POSITIVE_INFINITY, |
| maxWidth = Float.POSITIVE_INFINITY, |
| minHeight = 20.0f, |
| maxHeight = 30.0f |
| ) |
| BoxConstraints.lerp(constraints1, constraints3, 0.5f) |
| } |
| |
| @Test(expected = AssertionError::class) |
| fun `BoxConstraints lerp from bounded to unbounded 3`() { |
| val constraints2 = BoxConstraints( |
| minWidth = 20.0f, |
| maxWidth = 30.0f, |
| minHeight = Float.POSITIVE_INFINITY, |
| maxHeight = Float.POSITIVE_INFINITY |
| ) |
| val constraints3 = BoxConstraints( |
| minWidth = Float.POSITIVE_INFINITY, |
| maxWidth = Float.POSITIVE_INFINITY, |
| minHeight = 20.0f, |
| maxHeight = 30.0f |
| ) |
| BoxConstraints.lerp(constraints2, constraints3, 0.5f) |
| } |
| |
| @Test |
| fun `BoxConstraints normalize`() { |
| val constraints = BoxConstraints( |
| minWidth = 3.0f, |
| maxWidth = 2.0f, |
| minHeight = 11.0f, |
| maxHeight = 18.0f |
| ) |
| val copy = constraints.normalize() |
| assertEquals(3.0f, copy.minWidth, DELTA) |
| assertEquals(3.0f, copy.maxWidth, DELTA) |
| assertEquals(11.0f, copy.minHeight, DELTA) |
| assertEquals(18.0f, copy.maxHeight, DELTA) |
| } |
| } |