c1b0fd3aaf
- Implemented complete Heapsort algorithm with max-heap operations - Implemented binary heap-based Priority Queue with all core operations - Created Task class for task scheduling applications - Implemented Task Scheduler simulation using priority queue - Added comprehensive test suite (70+ tests, all passing) - Implemented sorting algorithm comparison utilities (Heapsort vs Quicksort vs Merge Sort) - Added detailed README with comprehensive analysis and documentation - Included demonstration scripts for all features - Generated performance comparison plots - Modular, well-documented code following academic standards Author: Carlos Gutierrez Email: cgutierrez44833@ucumberlands.edu
126 lines
4.5 KiB
Python
126 lines
4.5 KiB
Python
"""
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Test Suite for Task Class
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This module contains tests for the Task class, including comparisons,
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priority updates, and deadline checking.
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Author: Carlos Gutierrez
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Email: cgutierrez44833@ucumberlands.edu
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"""
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import unittest
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import sys
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import os
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# Add parent directory to path to import src modules
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sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
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from src.task import Task
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class TestTask(unittest.TestCase):
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"""Test cases for Task class."""
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def test_task_creation(self):
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"""Test creating a task with all parameters."""
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task = Task(
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task_id="T1",
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priority=10,
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arrival_time=0.0,
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deadline=100.0,
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execution_time=5.0,
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description="Test task"
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)
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self.assertEqual(task.task_id, "T1")
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self.assertEqual(task.priority, 10)
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self.assertEqual(task.arrival_time, 0.0)
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self.assertEqual(task.deadline, 100.0)
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self.assertEqual(task.execution_time, 5.0)
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self.assertEqual(task.description, "Test task")
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def test_task_creation_minimal(self):
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"""Test creating a task with minimal parameters."""
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task = Task("T1", priority=10, arrival_time=0.0)
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self.assertEqual(task.task_id, "T1")
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self.assertEqual(task.priority, 10)
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self.assertEqual(task.arrival_time, 0.0)
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self.assertIsNone(task.deadline)
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self.assertEqual(task.execution_time, 1.0)
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self.assertEqual(task.description, "")
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def test_task_comparison_lt(self):
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"""Test less than comparison."""
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task1 = Task("T1", priority=5, arrival_time=0.0)
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task2 = Task("T2", priority=10, arrival_time=1.0)
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self.assertTrue(task1 < task2)
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self.assertFalse(task2 < task1)
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def test_task_comparison_gt(self):
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"""Test greater than comparison."""
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task1 = Task("T1", priority=10, arrival_time=0.0)
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task2 = Task("T2", priority=5, arrival_time=1.0)
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self.assertTrue(task1 > task2)
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self.assertFalse(task2 > task1)
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def test_task_comparison_eq(self):
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"""Test equality comparison."""
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task1 = Task("T1", priority=10, arrival_time=0.0)
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task2 = Task("T2", priority=10, arrival_time=1.0)
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task3 = Task("T3", priority=5, arrival_time=2.0)
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self.assertTrue(task1 == task2)
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self.assertFalse(task1 == task3)
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def test_task_comparison_le(self):
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"""Test less than or equal comparison."""
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task1 = Task("T1", priority=5, arrival_time=0.0)
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task2 = Task("T2", priority=10, arrival_time=1.0)
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task3 = Task("T3", priority=5, arrival_time=2.0)
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self.assertTrue(task1 <= task2)
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self.assertTrue(task1 <= task3)
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self.assertFalse(task2 <= task1)
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def test_task_comparison_ge(self):
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"""Test greater than or equal comparison."""
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task1 = Task("T1", priority=10, arrival_time=0.0)
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task2 = Task("T2", priority=5, arrival_time=1.0)
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task3 = Task("T3", priority=10, arrival_time=2.0)
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self.assertTrue(task1 >= task2)
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self.assertTrue(task1 >= task3)
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self.assertFalse(task2 >= task1)
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def test_update_priority(self):
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"""Test updating task priority."""
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task = Task("T1", priority=10, arrival_time=0.0)
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self.assertEqual(task.priority, 10)
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task.update_priority(20)
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self.assertEqual(task.priority, 20)
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def test_is_overdue_with_deadline(self):
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"""Test checking if task is overdue."""
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task = Task("T1", priority=10, arrival_time=0.0, deadline=100.0)
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self.assertFalse(task.is_overdue(50.0))
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self.assertFalse(task.is_overdue(100.0))
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self.assertTrue(task.is_overdue(150.0))
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def test_is_overdue_no_deadline(self):
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"""Test checking overdue status for task without deadline."""
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task = Task("T1", priority=10, arrival_time=0.0)
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self.assertFalse(task.is_overdue(1000.0))
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def test_time_until_deadline(self):
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"""Test calculating time until deadline."""
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task = Task("T1", priority=10, arrival_time=0.0, deadline=100.0)
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self.assertEqual(task.time_until_deadline(50.0), 50.0)
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self.assertEqual(task.time_until_deadline(100.0), 0.0)
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self.assertEqual(task.time_until_deadline(150.0), 0.0)
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def test_time_until_deadline_no_deadline(self):
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"""Test time until deadline for task without deadline."""
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task = Task("T1", priority=10, arrival_time=0.0)
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self.assertIsNone(task.time_until_deadline(100.0))
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if __name__ == '__main__':
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unittest.main()
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