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80 lines
1.5 KiB
80 lines
1.5 KiB
package net.jrtechs.www.DataStructures.Lists;
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import net.jrtechs.www.DataStructures.Lists.Stack.Stack;
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import org.junit.Test;
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import static junit.framework.TestCase.assertFalse;
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import static junit.framework.TestCase.assertNotNull;
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import static junit.framework.TestCase.assertTrue;
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/**
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* JUnit tests for {@link Stack}
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*
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* @author Jeffery Russell 8-25-18
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*/
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public class StackTest
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{
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@Test
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public void testCreation()
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{
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assertNotNull(new Stack<>(12.0));
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assertNotNull(new Stack<>(14.0));
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}
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@Test
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public void testInsertion()
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{
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Stack<Double> stack = new Stack<>();
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stack.push(13.0);
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stack.push(23.0);
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}
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@Test
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public void testPeek()
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{
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Stack<Double> stack = new Stack<>();
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stack.push(13.0);
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stack.push(23.0);
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assertTrue(stack.peek() == 23.0);
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}
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@Test
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public void testPop()
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{
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Stack<Double> stack = new Stack<>();
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stack.push(13.0);
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stack.push(23.0);
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assertTrue(stack.pop() == 23.0);
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assertTrue(stack.pop() == 13.0);
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}
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@Test
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public void testEmpty()
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{
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Stack<Double> stack = new Stack<>();
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assertTrue(stack.empty());
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Stack<Double> stack22 = new Stack<>(234.0);
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assertFalse(stack22.empty());
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stack.push(13.0);
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stack.push(23.0);
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assertTrue(stack.pop() == 23.0);
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assertTrue(stack.pop() == 13.0);
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assertTrue(stack.empty());
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}
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}
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