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Refactor ProcessDetails and PreemptivePriorityScheduling (#5448)

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* Refactor ProcessDetails and PreemptivePriorityScheduling for consistency

* fix formatting

* fix formatting

* Improve test readability and maintainability
This commit is contained in:
doxxx
2024-09-11 21:49:36 +09:00
committed by GitHub
parent 65e32641fc
commit 648572a8c5
3 changed files with 55 additions and 46 deletions
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35
src/test/java/com/thealgorithms/scheduling/PreemptivePrioritySchedulingTest.java
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@ -2,32 +2,29 @@ package com.thealgorithms.scheduling;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.util.ArrayList;
import java.util.Arrays;
import com.thealgorithms.devutils.entities.ProcessDetails;
import java.util.List;
import org.junit.jupiter.api.Test;
import java.util.stream.Stream;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
/**
* Test Cases of Preemptive Priority Scheduling Algorithm
*
* @author [Bama Charan Chhandogi](https://www.github.com/BamaCharanChhandogi)
*/
class PreemptivePrioritySchedulingTest {
@ParameterizedTest
@MethodSource("provideProcessesAndExpectedSchedules")
void testPreemptivePriorityScheduling(List<ProcessDetails> processes, List<String> expectedSchedule) {
PreemptivePriorityScheduling scheduler = new PreemptivePriorityScheduling(processes);
scheduler.scheduleProcesses();
assertEquals(expectedSchedule, scheduler.ganttChart);
}
@Test
void testPreemptivePriorityScheduling() {
// Arrange
List<Process> processes = new ArrayList<>();
processes.add(new Process("P1", 0, 5, 10));
processes.add(new Process("P2", 1, 4, 20));
processes.add(new Process("P3", 2, 2, 30));
processes.add(new Process("P4", 4, 1, 40));
List<String> expectedGanttChart = Arrays.asList("P1", "P2", "P3", "P3", "P4", "P2", "P2", "P2", "P1", "P1", "P1", "P1");
// Act
List<String> actualGanttChart = PreemptivePriorityScheduling.preemptivePriorityScheduling(processes);
// Assert
assertEquals(expectedGanttChart, actualGanttChart);
static Stream<Arguments> provideProcessesAndExpectedSchedules() {
return Stream.of(Arguments.of(List.of(new ProcessDetails("P1", 0, 5, 2), new ProcessDetails("P2", 1, 4, 4), new ProcessDetails("P3", 2, 2, 6), new ProcessDetails("P4", 4, 1, 8)), List.of("P1", "P2", "P3", "P3", "P4", "P2", "P2", "P2", "P1", "P1", "P1", "P1")),
Arguments.of(List.of(new ProcessDetails("P1", 2, 5, 3), new ProcessDetails("P2", 5, 3, 5), new ProcessDetails("P3", 7, 1, 9)), List.of("Idle", "Idle", "P1", "P1", "P1", "P2", "P2", "P3", "P2", "P1", "P1")));
}
}