initial commit

tests/invalid_schedules.rs

@@ -0,0 +1,91 @@
+use mcps::{
+    schedule::Schedule,
+    task::{days_to_duration, Task},
+};
+
+fn create_schedule_and_expect_error(tasks: Vec<Task>, expected_error: &str) {
+    let result = Schedule::new(tasks, 1, 0.8);
+
+    assert!(
+        result.is_err(),
+        "Expected schedule creation to fail, but it didn't"
+    );
+    if let Err(error_message) = result {
+        assert!(
+            error_message.contains(expected_error),
+            "Expected error message '{}', but got '{}'",
+            expected_error,
+            error_message
+        );
+    }
+}
+
+#[test]
+fn test_cyclic_dependency() {
+    let tasks = vec![
+        Task::new(
+            "A",
+            vec!["B".to_string()],
+            days_to_duration(1.0),
+            days_to_duration(2.0),
+        ),
+        Task::new(
+            "B",
+            vec!["A".to_string()],
+            days_to_duration(1.0),
+            days_to_duration(2.0),
+        ),
+    ];
+
+    create_schedule_and_expect_error(tasks, "Cyclic dependency detected");
+}
+
+#[test]
+fn test_missing_dependency() {
+    let tasks = vec![
+        Task::new(
+            "A",
+            vec!["C".to_string()],
+            days_to_duration(1.0),
+            days_to_duration(2.0),
+        ),
+        Task::new(
+            "B",
+            vec!["A".to_string()],
+            days_to_duration(1.0),
+            days_to_duration(2.0),
+        ),
+    ];
+
+    create_schedule_and_expect_error(tasks, "Missing dependency");
+}
+
+#[test]
+fn test_negative_duration() {
+    let tasks = vec![Task::new(
+        "A",
+        vec![],
+        days_to_duration(0.0),
+        days_to_duration(1.0),
+    )];
+
+    create_schedule_and_expect_error(tasks, "Invalid task duration");
+}
+
+#[test]
+fn test_min_greater_than_max() {
+    let tasks = vec![Task::new(
+        "A",
+        vec![],
+        days_to_duration(3.0),
+        days_to_duration(2.0),
+    )];
+
+    create_schedule_and_expect_error(tasks, "Minimum duration greater than maximum");
+}
+
+#[test]
+fn test_empty_task_list() {
+    let tasks = vec![];
+    create_schedule_and_expect_error(tasks, "Empty task list");
+}