initial commit

tests/no_dependencies_schedule.rs

@@ -0,0 +1,97 @@
+use mcps::{
+    schedule::Schedule,
+    simulation::run_multiple_simulations,
+    task::{days_to_duration, Task},
+};
+
+use std::time::Duration;
+
+fn create_independent_tasks(num_tasks: usize) -> Vec<Task> {
+    (0..num_tasks)
+        .map(|i| {
+            Task::new(
+                &format!("Task_{}", i),
+                vec![],
+                days_to_duration(1.0),
+                days_to_duration(3.0),
+            )
+        })
+        .collect()
+}
+
+#[test]
+fn test_no_dependencies_schedule() {
+    let num_tasks = 32;
+    let tasks = create_independent_tasks(num_tasks);
+    let estimate_confidence = 0.8;
+    let num_simulations = 1_000;
+
+    let mut prev_avg_effort = 0.0;
+
+    for num_workers in [1, 2, 4, 8] {
+        let schedule = Schedule::new(tasks.clone(), num_workers, estimate_confidence)
+            .expect("Failed to create schedule");
+        let (project_durations, effort_times) =
+            run_multiple_simulations(&schedule, num_simulations);
+
+        let avg_duration = project_durations.iter().sum::<Duration>() / num_simulations as u32;
+        let avg_effort = effort_times.iter().sum::<Duration>() / num_simulations as u32;
+
+        let avg_duration_days = avg_duration.as_secs_f64() / 86400.0;
+        let avg_effort_days = avg_effort.as_secs_f64() / 86400.0;
+
+        println!(
+            "Workers: {}, Avg Duration: {:.2} days, Avg Effort: {:.2} person-days",
+            num_workers, avg_duration_days, avg_effort_days
+        );
+
+        // Check that effort is consistent across different numbers of workers
+        if num_workers > 1 {
+            let effort_difference = (avg_effort_days - prev_avg_effort).abs();
+            assert!(
+                effort_difference < 2.0,
+                "Effort should be consistent. Previous: {:.2}, Current: {:.2}",
+                prev_avg_effort,
+                avg_effort_days
+            );
+        }
+        prev_avg_effort = avg_effort_days;
+
+        // Check effort/duration ratio
+        let effort_ratio = avg_effort_days / avg_duration_days;
+        let expected_ratio = num_workers as f64;
+        let ratio_error = (effort_ratio - expected_ratio).abs() / expected_ratio;
+
+        println!(
+            "  Effort/Duration Ratio: {:.2} (Expected: {:.2}, Error: {:.2})",
+            effort_ratio, expected_ratio, ratio_error
+        );
+
+        assert!(ratio_error < 0.20, "Expected effort/duration ratio to be close to number of workers. Expected: {}, Actual: {}", expected_ratio, effort_ratio);
+
+        // For 1 worker, duration should be very close to effort
+        if num_workers == 1 {
+            let duration_effort_ratio = avg_duration_days / avg_effort_days;
+            assert!(
+                (duration_effort_ratio - 1.0).abs() < 0.05,
+                "For single worker, duration should equal effort. Ratio: {}",
+                duration_effort_ratio
+            );
+        }
+
+        // Check that duration decreases proportionally to the increase in workers
+        if num_workers > 1 {
+            let expected_duration = avg_effort_days / num_workers as f64;
+            let actual_duration = avg_duration_days;
+            let duration_ratio = actual_duration / expected_duration;
+            let duration_error = (duration_ratio - 1.0).abs();
+
+            println!(
+                "  Duration Ratio: {:.2} (Expected: {:.2}, Actual: {:.2}, Error: {:.2})",
+                duration_ratio, expected_duration, actual_duration, duration_error
+            );
+
+            assert!(duration_error < 0.20, "Expected duration to decrease proportionally with workers. Expected: {:.2}, Actual: {:.2}", expected_duration, actual_duration);
+        }
+    }
+}