Add MultiAgentScheduling algorithm (#5816)

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

@@ -0,0 +1,52 @@
+package com.thealgorithms.scheduling;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.List;
+import java.util.Map;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class MultiAgentSchedulingTest {
+
+    private MultiAgentScheduling scheduler;
+
+    @BeforeEach
+    public void setup() {
+        scheduler = new MultiAgentScheduling();
+    }
+
+    @Test
+    public void testAddAgentAndAssignTask() {
+        scheduler.addAgent("Agent1");
+        scheduler.assignTask("Agent1", "Task1");
+        Map<String, List<String>> expected = Map.of("Agent1", List.of("Task1"));
+        assertEquals(expected, scheduler.getScheduledTasks());
+    }
+
+    @Test
+    public void testMultipleAgentsWithTasks() {
+        scheduler.addAgent("Agent1");
+        scheduler.addAgent("Agent2");
+        scheduler.assignTask("Agent1", "Task1");
+        scheduler.assignTask("Agent2", "Task2");
+        Map<String, List<String>> expected = Map.of("Agent1", List.of("Task1"), "Agent2", List.of("Task2"));
+        assertEquals(expected, scheduler.getScheduledTasks());
+    }
+
+    @Test
+    public void testAgentWithMultipleTasks() {
+        scheduler.addAgent("Agent1");
+        scheduler.assignTask("Agent1", "Task1");
+        scheduler.assignTask("Agent1", "Task2");
+        Map<String, List<String>> expected = Map.of("Agent1", List.of("Task1", "Task2"));
+        assertEquals(expected, scheduler.getScheduledTasks());
+    }
+
+    @Test
+    public void testEmptyAgentSchedule() {
+        scheduler.addAgent("Agent1");
+        Map<String, List<String>> expected = Map.of("Agent1", List.of());
+        assertEquals(expected, scheduler.getScheduledTasks());
+    }
+}