/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, Inc.
*
* 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.util.datastruct;
import org.encog.EncogError;
import org.junit.Assert;
import org.junit.Test;
public class TestStackInt {
@Test
public void testToString() {
StackInt stack = new StackInt(5);
stack.push(3);
stack.push(4);
Assert.assertEquals("[StackInt: 4 3 ]", stack.toString());
}
@Test
public void testStackAdd() {
StackInt stack = new StackInt(5);
stack.push(3);
stack.push(4);
stack.add();
Assert.assertEquals(7, stack.pop());
}
@Test
public void testStackSub() {
StackInt stack = new StackInt(5);
stack.push(3);
stack.push(4);
Assert.assertEquals(-1, stack.sub());
Assert.assertEquals(-1, stack.pop());
}
@Test
public void testStackMul() {
StackInt stack = new StackInt(5);
stack.push(3);
stack.push(4);
Assert.assertEquals(12, stack.mul());
Assert.assertEquals(12, stack.pop());
}
@Test
public void testStackDiv() {
StackInt stack = new StackInt(5);
stack.push(3);
stack.push(4);
Assert.assertEquals(0, stack.div());
Assert.assertEquals(0, stack.pop());
}
@Test
public void testStackMax() {
StackInt stack = new StackInt(5);
stack.push(1);
stack.push(2);
stack.push(3);
stack.push(4);
Assert.assertEquals(4, stack.max(4));
Assert.assertEquals(4, stack.pop());
}
@Test
public void testStackMin() {
StackInt stack = new StackInt(5);
stack.push(1);
stack.push(2);
stack.push(3);
stack.push(4);
Assert.assertEquals(1, stack.min(4));
Assert.assertEquals(1, stack.pop());
}
@Test
public void testUnderflow() {
try {
StackInt stack = new StackInt(5);
stack.push(0);
stack.push(0);
stack.pop();
stack.pop();
stack.pop();
Assert.assertFalse(true);
} catch (EncogError e) {
// error expected
}
}
@Test
public void testOverflow() {
try {
StackInt stack = new StackInt(2);
stack.push(0);
stack.push(0);
stack.push(0);
Assert.assertFalse(true);
} catch (EncogError e) {
// error expected
}
}
@Test
public void testSize() {
StackInt stack = new StackInt(5);
stack.push(0);
stack.push(0);
Assert.assertEquals(2, stack.size());
}
}