Add EDFScheduling algorithm (#5657)

src/test/java/com/thealgorithms/scheduling/EDFSchedulingTest.java

@@ -0,0 +1,69 @@
+package com.thealgorithms.scheduling;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class EDFSchedulingTest {
+
+    private List<EDFScheduling.Process> processes;
+
+    @BeforeEach
+    public void setup() {
+        processes = createProcesses();
+    }
+
+    @Test
+    public void testEDFScheduling() {
+        EDFScheduling edfScheduling = new EDFScheduling(processes);
+        List<EDFScheduling.Process> executedProcesses = edfScheduling.scheduleProcesses();
+
+        // Assert the correct number of processes
+        assertEquals(3, executedProcesses.size());
+
+        // Assert that processes are executed in order of earliest deadline first
+        EDFScheduling.Process process1 = executedProcesses.get(0);
+        assertEquals("P2", process1.getProcessId());
+        assertEquals(0, process1.getWaitingTime());
+        assertEquals(3, process1.getTurnAroundTime());
+
+        EDFScheduling.Process process2 = executedProcesses.get(1);
+        assertEquals("P1", process2.getProcessId());
+        assertEquals(3, process2.getWaitingTime());
+        assertEquals(10, process2.getTurnAroundTime());
+
+        EDFScheduling.Process process3 = executedProcesses.get(2);
+        assertEquals("P3", process3.getProcessId());
+        assertEquals(10, process3.getWaitingTime());
+        assertEquals(18, process3.getTurnAroundTime());
+    }
+
+    @Test
+    public void testProcessMissedDeadline() {
+        // Modify the deadline of a process to ensure it will miss its deadline
+        processes.get(1).setTurnAroundTime(5); // Set P1's deadline to 5 (which it will miss)
+
+        EDFScheduling edfScheduling = new EDFScheduling(processes);
+        edfScheduling.scheduleProcesses();
+
+        // Check if the process with ID "P1" missed its deadline
+        assertEquals("P1", processes.get(1).getProcessId());
+    }
+
+    private List<EDFScheduling.Process> createProcesses() {
+        // Process ID, Burst Time, Deadline
+        EDFScheduling.Process process1 = new EDFScheduling.Process("P1", 7, 10); // 7 burst time, 10 deadline
+        EDFScheduling.Process process2 = new EDFScheduling.Process("P2", 3, 5); // 3 burst time, 5 deadline
+        EDFScheduling.Process process3 = new EDFScheduling.Process("P3", 8, 18); // 8 burst time, 18 deadline
+
+        List<EDFScheduling.Process> processes = new ArrayList<>();
+        processes.add(process1);
+        processes.add(process2);
+        processes.add(process3);
+
+        return processes;
+    }
+}