created test script for intermediate integration dataset generator

tests/test_intermediate_integration.py

@@ -0,0 +1,109 @@
+"""Tests for intermediate integration task generation"""
+
+import pytest
+import sympy
+from sympy.parsing.sympy_parser import parse_expr
+
+from reasoning_gym.algebra.intermediate_integration import IntermediateIntegrationConfig, IntermediateIntegrationDataset
+
+
+def test_intermediate_integration_config_validation():
+    """Test that invalid configs raise appropriate errors"""
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(problem_types=["invalid_problem_type"])
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(substitution_types=["invalid_substitution_type"])
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(by_parts_types=["invalid_by_parts_type"])
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(linear_lower_bound=2, linear_upper_bound=1)
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(linear_lower_bound=0)
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(min_linear_degree=5, max_linear_degree=1)
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(min_linear_degree=0)
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(outer_constant_min=5, outer_constant_max=1)
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(outer_constant_min=0)
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(min_poly_degree=5, max_poly_degree=1)
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(min_poly_degree=0)
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(symbols=("x", "y"))
+        config.validate()
+
+    with pytest.raises(AssertionError):
+        config = IntermediateIntegrationConfig(operators=("+", "-", "*", "/"))
+        config.validate()
+
+
+def test_intermediate_integration_dataset_deterministic():
+    """Test that dataset generates same items with same seed"""
+    config = IntermediateIntegrationConfig(seed=42, size=10)
+    dataset1 = IntermediateIntegrationDataset(config)
+    dataset2 = IntermediateIntegrationDataset(config)
+
+    for i in range(len(dataset1)):
+        assert dataset1[i] == dataset2[i]
+
+
+def test_intermediate_integration_dataset_items():
+    """Test that dataset items are valid"""
+    config = IntermediateIntegrationConfig(seed=42, size=10)
+    dataset = IntermediateIntegrationDataset(config)
+
+    for i in range(len(dataset)):
+        item = dataset[i]
+        assert isinstance(item, dict)
+        assert "question" in item
+        assert "answer" in item
+        assert "metadata" in item
+
+        assert "integrand" in item["metadata"]
+        assert "problem_type" in item["metadata"]
+        assert "variable" in item["metadata"]
+        assert "type" in item["metadata"]
+
+        # verify answer is mathematical expression
+        answer = item["answer"]
+        answer = answer.replace(" + C", "")
+        assert isinstance(parse_expr(answer), sympy.Expr)
+
+
+def test_solution_verification():
+    """Test for solution verification of each answer"""
+    config = IntermediateIntegrationConfig(seed=42, size=10)
+    dataset = IntermediateIntegrationDataset(config)
+
+    for item in dataset:
+        integrand = parse_expr(item["metadata"]["integrand"])
+        variable = sympy.Symbol(item["metadata"]["variable"])
+        answer = parse_expr(item["answer"].replace(" + C", ""))
+
+        # Verify that the derivative of the answer equals the integrand
+        assert sympy.simplify(sympy.diff(answer, variable) - integrand) == 0