[BAEL-12908] - Created algorithms-miscellaneous-3 module

This commit is contained in:
amit2103
2019-04-28 22:20:42 +05:30
parent a6b462c7eb
commit 5639e470d1
20 changed files with 65 additions and 5 deletions

View File

@@ -1,37 +0,0 @@
package com.baeldung.algorithms.enumstatemachine;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class LeaveRequestStateUnitTest {
@Test
public void givenLeaveRequest_whenStateEscalated_thenResponsibleIsTeamLeader() {
LeaveRequestState state = LeaveRequestState.Escalated;
assertEquals(state.responsiblePerson(), "Team Leader");
}
@Test
public void givenLeaveRequest_whenStateApproved_thenResponsibleIsDepartmentManager() {
LeaveRequestState state = LeaveRequestState.Approved;
assertEquals(state.responsiblePerson(), "Department Manager");
}
@Test
public void givenLeaveRequest_whenNextStateIsCalled_thenStateIsChanged() {
LeaveRequestState state = LeaveRequestState.Submitted;
state = state.nextState();
assertEquals(state, LeaveRequestState.Escalated);
state = state.nextState();
assertEquals(state, LeaveRequestState.Approved);
state = state.nextState();
assertEquals(state, LeaveRequestState.Approved);
}
}

View File

@@ -1,37 +0,0 @@
package com.baeldung.algorithms.twopointertechnique;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class LinkedListFindMiddleUnitTest {
LinkedListFindMiddle linkedListFindMiddle = new LinkedListFindMiddle();
@Test
public void givenLinkedListOfMyNodes_whenLinkedListFindMiddle_thenCorrect() {
MyNode<String> head = createNodesList(8);
assertThat(linkedListFindMiddle.findMiddle(head)).isEqualTo("4");
head = createNodesList(9);
assertThat(linkedListFindMiddle.findMiddle(head)).isEqualTo("5");
}
private static MyNode<String> createNodesList(int n) {
MyNode<String> head = new MyNode<String>("1");
MyNode<String> current = head;
for (int i = 2; i <= n; i++) {
MyNode<String> newNode = new MyNode<String>(String.valueOf(i));
current.setNext(newNode);
current = newNode;
}
return head;
}
}

View File

@@ -1,26 +0,0 @@
package com.baeldung.algorithms.twopointertechnique;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class RotateArrayUnitTest {
private RotateArray rotateArray = new RotateArray();
private int[] inputArray;
private int step;
@Test
public void givenAnArrayOfIntegers_whenRotateKsteps_thenCorrect() {
inputArray = new int[] { 1, 2, 3, 4, 5, 6, 7 };
step = 4;
rotateArray.rotate(inputArray, step);
assertThat(inputArray).containsExactly(new int[] { 4, 5, 6, 7, 1, 2, 3 });
}
}

View File

@@ -1,56 +0,0 @@
package com.baeldung.algorithms.twopointertechnique;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class TwoSumUnitTest {
private TwoSum twoSum = new TwoSum();
private int[] sortedArray;
private int targetValue;
@Test
public void givenASortedArrayOfIntegers_whenTwoSumSlow_thenPairExists() {
sortedArray = new int[] { 0, 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9 };
targetValue = 12;
assertTrue(twoSum.twoSumSlow(sortedArray, targetValue));
}
@Test
public void givenASortedArrayOfIntegers_whenTwoSumSlow_thenPairDoesNotExists() {
sortedArray = new int[] { 0, 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9 };
targetValue = 20;
assertFalse(twoSum.twoSumSlow(sortedArray, targetValue));
}
@Test
public void givenASortedArrayOfIntegers_whenTwoSum_thenPairExists() {
sortedArray = new int[] { 0, 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9 };
targetValue = 12;
assertTrue(twoSum.twoSum(sortedArray, targetValue));
}
@Test
public void givenASortedArrayOfIntegers_whenTwoSum_thenPairDoesNotExists() {
sortedArray = new int[] { 0, 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9 };
targetValue = 20;
assertFalse(twoSum.twoSum(sortedArray, targetValue));
}
}