/*
* 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.assertFalse;
import static org.junit.Assert.assertTrue;
/** */
public class RandomVectorConstructorTest {
/** */
private static final int IMPOSSIBLE_SIZE = -1;
/** */
@Test(expected = UnsupportedOperationException.class)
public void mapInvalidArgsTest() {
assertEquals("Expect exception due to invalid args.", IMPOSSIBLE_SIZE,
new RandomVector(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("paramMissing", "whatever");
}};
assertEquals("Expect exception due to missing args.",
-1, new RandomVector(test).size());
}
/** */
@Test(expected = ClassCastException.class)
public void mapInvalidParamTypeTest() {
final Map<String, Object> test = new HashMap<String, Object>() {{
put("size", "whatever");
put("fastHash", true);
}};
assertEquals("Expect exception due to invalid param type.", IMPOSSIBLE_SIZE,
new RandomVector(test).size());
}
/** */
@Test(expected = AssertionError.class)
public void mapNullTest() {
//noinspection ConstantConditions
assertEquals("Null map args.", IMPOSSIBLE_SIZE,
new RandomVector(null).size());
}
/** */
@Test
public void mapTest() {
assertEquals("Size from args.", 99,
new RandomVector(new HashMap<String, Object>() {{
put("size", 99);
}}).size());
final int test = 99;
assertEquals("Size from args with fastHash false.", test,
new RandomVector(new HashMap<String, Object>() {{
put("size", test);
put("fastHash", false);
}}).size());
assertEquals("Size from args with fastHash true.", test,
new RandomVector(new HashMap<String, Object>() {{
put("size", test);
put("fastHash", true);
}}).size());
}
/** */
@Test(expected = AssertionError.class)
public void negativeSizeTest() {
assertEquals("Negative size.", IMPOSSIBLE_SIZE,
new RandomVector(-1).size());
}
/** */
@Test
public void basicTest() {
final int basicSize = 3;
Vector v1 = new RandomVector(basicSize);
//noinspection EqualsWithItself
assertTrue("Expect vector to be equal to self", v1.equals(v1));
//noinspection ObjectEqualsNull
assertFalse("Expect vector to be not equal to null", v1.equals(null));
assertEquals("Size differs from expected", basicSize, v1.size());
verifyValues(v1);
Vector v2 = new RandomVector(basicSize, true);
assertEquals("Size differs from expected", basicSize, v2.size());
verifyValues(v2);
Vector v3 = new RandomVector(basicSize, false);
assertEquals("Size differs from expected", basicSize, v3.size());
verifyValues(v3);
}
/** */
private void verifyValues(Vector v) {
for (Vector.Element e : v.all()) {
double val = e.get();
assertTrue("Value too small: " + val + " at index " + e.index(), -1d <= val);
assertTrue("Value too large: " + val + " at index " + e.index(), val <= 1d);
}
}
}