// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.command;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import java.util.ArrayList;
import java.util.Arrays;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.openstreetmap.josm.command.CommandTest.CommandTestData;
import org.openstreetmap.josm.data.coor.EastNorth;
import org.openstreetmap.josm.data.coor.LatLon;
import org.openstreetmap.josm.data.osm.DataSet;
import org.openstreetmap.josm.data.osm.Node;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.data.osm.User;
import org.openstreetmap.josm.gui.layer.OsmDataLayer;
import org.openstreetmap.josm.testutils.JOSMTestRules;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import nl.jqno.equalsverifier.EqualsVerifier;
import nl.jqno.equalsverifier.Warning;
/**
* Unit tests of {@link RotateCommand} class.
*/
public class RotateCommandTest {
/**
* We need prefs for nodes.
*/
@Rule
@SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
public JOSMTestRules test = new JOSMTestRules().preferences().projection();
private CommandTestData testData;
/**
* Set up the test data.
*/
@Before
public void createTestData() {
testData = new CommandTestData();
}
/**
* Test a simple 45° rotation. Tests {@link RotateCommand#executeCommand()}
*/
@Test
public void testRotate() {
// pivot needs to be at 0,0
Node n1 = new Node(new EastNorth(10, 10));
Node n2 = new Node(new EastNorth(-1, 0));
Node n3 = new Node(new EastNorth(-9, -10));
RotateCommand rotate = new RotateCommand(Arrays.asList(n1, n2, n3), new EastNorth(0, 0));
rotate.setRotationAngle(Math.PI / 4);
rotate.executeCommand();
assertEquals(Math.sqrt(2) * 10, n1.getEastNorth().east(), 0.0001);
assertEquals(0, n1.getEastNorth().north(), 0.0001);
assertEquals(-1 / Math.sqrt(2), n2.getEastNorth().east(), 0.0001);
assertEquals(1 / Math.sqrt(2), n2.getEastNorth().north(), 0.0001);
}
/**
* Test {@link RotateCommand#undoCommand()}
*/
@Test
public void testUndo() {
Node n1 = new Node(new EastNorth(10, 10));
Node n2 = new Node(new EastNorth(-1, 0));
Node n3 = new Node(new EastNorth(-9, -10));
RotateCommand rotate = new RotateCommand(Arrays.asList(n1, n2, n3), new EastNorth(0, 0));
rotate.setRotationAngle(Math.PI / 4);
rotate.executeCommand();
rotate.undoCommand();
assertEquals(10, n1.getEastNorth().east(), 0.0001);
assertEquals(10, n1.getEastNorth().north(), 0.0001);
assertEquals(-1, n2.getEastNorth().east(), 0.0001);
assertEquals(0, n2.getEastNorth().north(), 0.0001);
rotate.executeCommand();
assertEquals(-1 / Math.sqrt(2), n2.getEastNorth().east(), 0.0001);
assertEquals(1 / Math.sqrt(2), n2.getEastNorth().north(), 0.0001);
}
/**
* Tests {@link RotateCommand#fillModifiedData(java.util.Collection, java.util.Collection, java.util.Collection)}
*/
@Test
public void testFillModifiedData() {
ArrayList<OsmPrimitive> modified = new ArrayList<>();
ArrayList<OsmPrimitive> deleted = new ArrayList<>();
ArrayList<OsmPrimitive> added = new ArrayList<>();
RotateCommand command = new RotateCommand(Arrays.asList(testData.existingNode),
new EastNorth(0, 0));
// intentionally empty
command.fillModifiedData(modified, deleted, added);
assertArrayEquals(new Object[] {}, modified.toArray());
assertArrayEquals(new Object[] {}, deleted.toArray());
assertArrayEquals(new Object[] {}, added.toArray());
}
/**
* Tests {@link RotateCommand#getParticipatingPrimitives()}
*/
@Test
public void testGetParticipatingPrimitives() {
RotateCommand command = new RotateCommand(Arrays.asList(testData.existingNode), new EastNorth(0, 0));
command.executeCommand();
assertArrayEquals(new Object[] {testData.existingNode}, command.getParticipatingPrimitives().toArray());
}
/**
* Test {@link RotateCommand#getDescriptionText()}
*/
@Test
public void testDescription() {
assertEquals("Rotate 1 node",
new RotateCommand(Arrays.asList(testData.existingNode), new EastNorth(0, 0))
.getDescriptionText());
assertEquals("Rotate 2 nodes",
new RotateCommand(Arrays.asList(testData.existingNode, testData.existingNode2), new EastNorth(0, 0))
.getDescriptionText());
}
/**
* Unit test of methods {@link RotateCommand#equals} and {@link RotateCommand#hashCode}.
*/
@Test
public void testEqualsContract() {
EqualsVerifier.forClass(RotateCommand.class).usingGetClass()
.withPrefabValues(LatLon.class, LatLon.ZERO, new LatLon(45, 45))
.withPrefabValues(DataSet.class, new DataSet(), new DataSet())
.withPrefabValues(User.class, User.createOsmUser(1, "foo"), User.createOsmUser(2, "bar"))
.withPrefabValues(OsmDataLayer.class, new OsmDataLayer(new DataSet(), "1", null),
new OsmDataLayer(new DataSet(), "2", null))
.suppress(Warning.NONFINAL_FIELDS).verify();
}
}