| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.geometry.core; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.apache.commons.geometry.core.partition.test.PartitionTestUtils; |
| import org.apache.commons.geometry.core.partition.test.TestLine; |
| import org.apache.commons.geometry.core.partition.test.TestPoint1D; |
| import org.apache.commons.geometry.core.partition.test.TestPoint2D; |
| import org.junit.Test; |
| |
| import org.junit.Assert; |
| |
| public class EmbeddingTest { |
| |
| @Test |
| public void testToSubspace_collection_emptyInput() { |
| // arrange |
| TestLine line = TestLine.Y_AXIS; |
| |
| // act |
| List<TestPoint1D> result = line.toSubspace(new ArrayList<>()); |
| |
| // assert |
| Assert.assertEquals(0, result.size()); |
| } |
| |
| @Test |
| public void testToSubspace_collection() { |
| // arrange |
| List<TestPoint2D> pts = Arrays.asList( |
| new TestPoint2D(0, 0), |
| new TestPoint2D(1, 0.25), |
| new TestPoint2D(0.5, 1) |
| ); |
| |
| TestLine line = TestLine.Y_AXIS; |
| |
| // act |
| List<TestPoint1D> result = line.toSubspace(pts); |
| |
| // assert |
| Assert.assertEquals(3, result.size()); |
| Assert.assertEquals(0, result.get(0).getX(), PartitionTestUtils.EPS); |
| Assert.assertEquals(0.25, result.get(1).getX(), PartitionTestUtils.EPS); |
| Assert.assertEquals(1, result.get(2).getX(), PartitionTestUtils.EPS); |
| } |
| |
| @Test |
| public void testToSpace_collection_emptyInput() { |
| // arrange |
| TestLine line = TestLine.Y_AXIS; |
| |
| // act |
| List<TestPoint2D> result = line.toSpace(new ArrayList<>()); |
| |
| // assert |
| Assert.assertEquals(0, result.size()); |
| } |
| |
| @Test |
| public void testToSpace_collection() { |
| // arrange |
| List<TestPoint1D> pts = Arrays.asList( |
| new TestPoint1D(0), |
| new TestPoint1D(1), |
| new TestPoint1D(0.5) |
| ); |
| |
| TestLine line = TestLine.Y_AXIS; |
| |
| // act |
| List<TestPoint2D> result = line.toSpace(pts); |
| |
| // assert |
| Assert.assertEquals(3, result.size()); |
| PartitionTestUtils.assertPointsEqual(new TestPoint2D(0, 0), result.get(0)); |
| PartitionTestUtils.assertPointsEqual(new TestPoint2D(0, 1), result.get(1)); |
| PartitionTestUtils.assertPointsEqual(new TestPoint2D(0, 0.5), result.get(2)); |
| } |
| } |