reasoning-gym/tests/test_course_schedule.py
Zafir Stojanovski eee0b36983 course schedule
2025-02-04 23:50:24 +01:00

127 lines
4.5 KiB
Python

"""Tests for Course Schedule puzzle generation"""
import pytest
from reasoning_gym.graphs.course_schedule import CourseScheduleConfig, CourseScheduleDataset
def test_course_schedule_config_validation():
"""Test that invalid configs raise appropriate errors"""
with pytest.raises(AssertionError):
config = CourseScheduleConfig(num_courses=-1) # Negative not allowed
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(num_courses=0) # Zero not allowed
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(max_num_prerequisites=-1) # Negative not allowed
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(max_num_prerequisites=0) # Zero not allowed
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(num_courses=3, max_num_prerequisites=5) # max_num_prerequisites > num_courses
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(p_solvable=-0.1) # < 0 not allowed
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(p_solvable=1.1) # > 1 not allowed
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(p_solvable=1.1) # > 1 not allowed
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(min_cycle_length=2) # < 3 not allowed
config.validate()
with pytest.raises(AssertionError):
config = CourseScheduleConfig(min_cycle_length=3, max_cycle_length=2) # min_cycle_length > max_cycle_length
config.validate()
def test_course_schedule_dataset_deterministic():
"""Test that dataset generates same items with same seed"""
config = CourseScheduleConfig(seed=42, size=10)
dataset1 = CourseScheduleDataset(config)
dataset2 = CourseScheduleDataset(config)
for i in range(len(dataset1)):
assert dataset1[i] == dataset2[i]
def test_course_schedule_dataset_items():
"""Test basic properties of generated items"""
config = CourseScheduleConfig(num_courses=15, size=10, seed=42)
dataset = CourseScheduleDataset(config)
for i in range(len(dataset)):
item = dataset[i]
# Check item structure
assert isinstance(item, dict)
assert "question" in item
assert "answer" in item
assert "metadata" in item
# Check metadata
assert "courses" in item["metadata"]
assert "prerequisites" in item["metadata"]
assert "solution" in item["metadata"]
assert "solvable" in item["metadata"]
courses = item["metadata"]["courses"]
prerequisites = item["metadata"]["prerequisites"]
solvable = item["metadata"]["solvable"] # Solution dictated by p_solvable
solution = item["metadata"]["solution"] # Solution obtained from topological sort
# Verify metadata
assert len(courses) == config.num_courses
assert max(courses) == config.num_courses - 1
assert len(prerequisites) <= config.max_num_prerequisites * config.num_courses
assert all(len(prereq) == 2 for prereq in prerequisites)
for course, prereq in prerequisites:
assert course < config.num_courses
assert prereq < config.num_courses
assert course != prereq
assert solution == solvable
def test_course_schedule_dataset_iteration():
"""Test that iteration respects dataset size"""
config = CourseScheduleConfig(size=5, seed=42)
dataset = CourseScheduleDataset(config)
items = list(dataset)
assert len(items) == config.size
# Test multiple iterations yield same items
assert items == list(dataset)
def test_course_schedule_answer():
"""Test the _can_finish method"""
config = CourseScheduleConfig(seed=42)
dataset = CourseScheduleDataset(config)
prerequisites = [[0, 1]]
assert dataset._can_finish(num_courses=2, prerequisites=prerequisites) == True
# Direct cycle
prerequisites = [[0, 1], [1, 0]]
assert dataset._can_finish(num_courses=2, prerequisites=prerequisites) == False
# Empty prerequisites
prerequisites = []
assert dataset._can_finish(num_courses=2, prerequisites=prerequisites) == True
# Indirect cycle of length 3
prerequisites = [[0, 1], [1, 2], [2, 0]]
assert dataset._can_finish(num_courses=3, prerequisites=prerequisites) == False