/*
* 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.ignite.ml.math.impls.vector;
import java.util.HashMap;
import java.util.Map;
import org.apache.ignite.ml.math.Vector;
import org.apache.ignite.ml.math.exceptions.UnsupportedOperationException;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/** */
public class SingleElementVectorConstructorTest {
/** */
private static final int IMPOSSIBLE_SIZE = -1;
/** */
@Test(expected = UnsupportedOperationException.class)
public void mapInvalidArgsTest() {
assertEquals("Expect exception due to invalid args.", IMPOSSIBLE_SIZE,
new SingleElementVector(new HashMap<String, Object>() {{
put("invalid", 99);
}}).size());
}
/** */
@Test(expected = UnsupportedOperationException.class)
public void mapMissingArgsTest() {
final Map<String, Object> test = new HashMap<String, Object>() {{
put("size", 1);
put("paramMissing", "whatever");
}};
assertEquals("Expect exception due to missing args.",
-1, new SingleElementVector(test).size());
}
/** */
@Test(expected = ClassCastException.class)
public void mapInvalidParamTypeTest() {
final Map<String, Object> test = new HashMap<String, Object>() {{
put("size", "whatever");
put("index", 0);
put("value", 1.0);
}};
assertEquals("Expect exception due to invalid param type.", IMPOSSIBLE_SIZE,
new SingleElementVector(test).size());
}
/** */
@Test(expected = AssertionError.class)
public void mapNullTest() {
//noinspection ConstantConditions
assertEquals("Null map args.", IMPOSSIBLE_SIZE,
new SingleElementVector(null).size());
}
/** */
@Test
public void mapTest() {
assertEquals("Size from array in args.", 99,
new SingleElementVector(new HashMap<String, Object>() {{
put("size", 99);
put("index", 0);
put("value", 1.0);
}}).size());
}
/** */
@Test(expected = AssertionError.class)
public void negativeSizeTest() {
assertEquals("Negative size.", IMPOSSIBLE_SIZE,
new SingleElementVector(-1, 0, 1.0).size());
}
/** */
@Test(expected = AssertionError.class)
public void zeroSizeTest() {
assertEquals("Zero size.", IMPOSSIBLE_SIZE,
new SingleElementVector(0, 0, 1.0).size());
}
/** */
@Test(expected = AssertionError.class)
public void wrongIndexTest() {
//noinspection ConstantConditions
assertEquals("Wrong index.", IMPOSSIBLE_SIZE,
new SingleElementVector(1, 2, 1.0).size());
}
/** */
@Test
public void basicTest() {
final int[] sizes = new int[] {1, 4, 8};
for (int size : sizes)
for (int idx = 0; idx < size; idx++)
basicTest(size, idx);
}
/** */
private void basicTest(int size, int idx) {
final Double expVal = (double)(size - idx);
Vector v = new SingleElementVector(size, idx, expVal);
assertTrue("Expect value " + expVal + " at index " + idx + " for size " + size,
expVal.equals(v.get(idx)));
final double delta = 1.0;
v.set(idx, expVal - delta);
assertTrue("Expect value " + expVal + " at index " + idx + " for size " + size,
expVal.equals(v.get(idx) + delta));
final Double zero = 0.0;
for (int i = 0; i < size; i++) {
if (i == idx)
continue;
assertTrue("Expect zero at index " + i + " for size " + size,
zero.equals(v.get(i)));
boolean eCaught = false;
try {
v.set(i, 1.0);
}
catch (UnsupportedOperationException uoe) {
eCaught = true;
}
assertTrue("Expect " + java.lang.UnsupportedOperationException.class.getSimpleName()
+ " at index " + i + " for size " + size, eCaught);
}
}
}