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src/test/java/com/thealgorithms/scheduling/SJFSchedulingTest.java
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@ -1,120 +1,109 @@
package com.thealgorithms.scheduling;
import com.thealgorithms.devutils.entities.ProcessDetails;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import static org.junit.jupiter.api.Assertions.*;
import com.thealgorithms.devutils.entities.ProcessDetails;
import java.util.ArrayList;
import org.junit.jupiter.api.Test;
class SJFSchedulingTest {
private ArrayList<ProcessDetails> process;
void initialisation0()
{
private ArrayList<ProcessDetails> process;
void initialisation0() {
process=new ArrayList<>();
process.add(new ProcessDetails("1",0 ,6));
process.add(new ProcessDetails("2",1,2));
process = new ArrayList<>();
process.add(new ProcessDetails("1", 0, 6));
process.add(new ProcessDetails("2", 1, 2));
}
void initialisation1()
{
void initialisation1() {
process=new ArrayList<>();
process.add(new ProcessDetails("1",0 ,6));
process.add(new ProcessDetails("2",1,2));
process.add(new ProcessDetails("3",4 ,3));
process.add(new ProcessDetails("4",3,1));
process.add(new ProcessDetails("5",6 ,4));
process.add(new ProcessDetails("6",5,5));
process = new ArrayList<>();
process.add(new ProcessDetails("1", 0, 6));
process.add(new ProcessDetails("2", 1, 2));
process.add(new ProcessDetails("3", 4, 3));
process.add(new ProcessDetails("4", 3, 1));
process.add(new ProcessDetails("5", 6, 4));
process.add(new ProcessDetails("6", 5, 5));
}
void initialisation2()
{
process=new ArrayList<>();
process.add(new ProcessDetails("1",0 ,3));
process.add(new ProcessDetails("2",1,2));
process.add(new ProcessDetails("3",2 ,1));
void initialisation2() {
process = new ArrayList<>();
process.add(new ProcessDetails("1", 0, 3));
process.add(new ProcessDetails("2", 1, 2));
process.add(new ProcessDetails("3", 2, 1));
}
void initialisation3(){
process=new ArrayList<>();
process.add(new ProcessDetails("1",0 ,3));
process.add(new ProcessDetails("2",5,2));
process.add(new ProcessDetails("3",9 ,1));
void initialisation3() {
process = new ArrayList<>();
process.add(new ProcessDetails("1", 0, 3));
process.add(new ProcessDetails("2", 5, 2));
process.add(new ProcessDetails("3", 9, 1));
}
@Test
void constructor()
{
void constructor() {
initialisation0();
SJFScheduling a=new SJFScheduling(process);
assertEquals( 6,a.processes.get(0).getBurstTime());
assertEquals( 2,a.processes.get(1).getBurstTime());
SJFScheduling a = new SJFScheduling(process);
assertEquals(6, a.processes.get(0).getBurstTime());
assertEquals(2, a.processes.get(1).getBurstTime());
}
@Test
void sort()
{
@Test
void sort() {
initialisation1();
SJFScheduling a=new SJFScheduling(process);
SJFScheduling a = new SJFScheduling(process);
a.sortByArrivalTime();
assertEquals("1",a.processes.get(0).getProcessId());
assertEquals("2",a.processes.get(1).getProcessId());
assertEquals("3",a.processes.get(3).getProcessId());
assertEquals("4",a.processes.get(2).getProcessId());
assertEquals("5",a.processes.get(5).getProcessId());
assertEquals("6",a.processes.get(4).getProcessId());
assertEquals("1", a.processes.get(0).getProcessId());
assertEquals("2", a.processes.get(1).getProcessId());
assertEquals("3", a.processes.get(3).getProcessId());
assertEquals("4", a.processes.get(2).getProcessId());
assertEquals("5", a.processes.get(5).getProcessId());
assertEquals("6", a.processes.get(4).getProcessId());
}
@Test
void scheduling(){
void scheduling() {
initialisation1();
SJFScheduling a=new SJFScheduling(process);
SJFScheduling a = new SJFScheduling(process);
a.scheduleProcesses();
assertEquals( "1" , a.schedule.get(0));
assertEquals( "4" , a.schedule.get(1));
assertEquals( "2" , a.schedule.get(2));
assertEquals( "3" , a.schedule.get(3));
assertEquals("5" , a.schedule.get(4));
assertEquals( "6", a.schedule.get(5));
assertEquals("1", a.schedule.get(0));
assertEquals("4", a.schedule.get(1));
assertEquals("2", a.schedule.get(2));
assertEquals("3", a.schedule.get(3));
assertEquals("5", a.schedule.get(4));
assertEquals("6", a.schedule.get(5));
}
@Test
void schedulingOf_TwoProcesses(){
void schedulingOf_TwoProcesses() {
initialisation0();
SJFScheduling a=new SJFScheduling(process);
SJFScheduling a = new SJFScheduling(process);
a.scheduleProcesses();
assertEquals( "1" , a.schedule.get(0));
assertEquals( "2" , a.schedule.get(1));
assertEquals("1", a.schedule.get(0));
assertEquals("2", a.schedule.get(1));
}
@Test
void schedulingOfA_ShortestJobArrivingLast(){
void schedulingOfA_ShortestJobArrivingLast() {
initialisation2();
SJFScheduling a=new SJFScheduling(process);
SJFScheduling a = new SJFScheduling(process);
a.scheduleProcesses();
assertEquals( "1" , a.schedule.get(0));
assertEquals( "3" , a.schedule.get(1));
assertEquals( "2" , a.schedule.get(2));
assertEquals("1", a.schedule.get(0));
assertEquals("3", a.schedule.get(1));
assertEquals("2", a.schedule.get(2));
}
@Test
void scheduling_WithProcessesNotComingBackToBack(){
void scheduling_WithProcessesNotComingBackToBack() {
initialisation3();
SJFScheduling a=new SJFScheduling(process);
SJFScheduling a = new SJFScheduling(process);
a.scheduleProcesses();
assertEquals( "1" , a.schedule.get(0));
assertEquals( "2" , a.schedule.get(1));
assertEquals( "3" , a.schedule.get(2));
assertEquals("1", a.schedule.get(0));
assertEquals("2", a.schedule.get(1));
assertEquals("3", a.schedule.get(2));
}
@Test
void schedulingOf_nothing(){
process=new ArrayList<>();
SJFScheduling a=new SJFScheduling(process);
void schedulingOf_nothing() {
process = new ArrayList<>();
SJFScheduling a = new SJFScheduling(process);
a.scheduleProcesses();
assertTrue( a.schedule.isEmpty());
assertTrue(a.schedule.isEmpty());
}
}