/*
* ModeShape (http://www.modeshape.org)
*
* 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 org.modeshape.common.text;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;
import org.junit.Test;
public class PositionTest {
private int combinedIndex( int firstIndex,
int secondIndex ) {
Position first = new Position(firstIndex, 1, 0);
Position second = new Position(secondIndex, 1, 0);
int firstPlusSecond = first.add(second).getIndexInContent();
int secondPlusFirst = second.add(first).getIndexInContent();
assertThat(firstPlusSecond, is(secondPlusFirst));
return firstPlusSecond;
}
@Test
public void shouldAddNoContentPositionToValidPosition() {
// -1 to >=0
assertThat(combinedIndex(-1, 0), is(0));
assertThat(combinedIndex(-1, 1), is(1));
assertThat(combinedIndex(-1, 10), is(10));
}
@Test
public void shouldAddValidPositionToNoContentPosition() {
// >= 0 to -1
assertThat(combinedIndex(0, -1), is(0));
assertThat(combinedIndex(1, -1), is(1));
assertThat(combinedIndex(10, -1), is(10));
}
@Test
public void shouldAddValidPositionToValidPosition() {
// positive to positive
assertThat(combinedIndex(1, 1), is(2));
assertThat(combinedIndex(10, 1), is(11));
assertThat(combinedIndex(1, 10), is(11));
assertThat(combinedIndex(10, 10), is(20));
}
@Test
public void shouldAddStartingPositionToStartingPosition() {
// 0 to 0
assertThat(combinedIndex(0, 0), is(0));
}
@Test
public void shouldAddNoContentPositionToNoContentPosition() {
// -1 to -1
assertThat(combinedIndex(-1, -1), is(-1));
assertThat(combinedIndex(-10, -1), is(-1));
assertThat(combinedIndex(-1, -10), is(-1));
}
}