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"""
TDD Tests for FHIR Validation
Focus on healthcare-grade FHIR R4 compliance
"""
import pytest
import json
from unittest.mock import Mock, patch
from typing import Dict, Any
# Will fail initially - TDD RED phase
try:
from src.fhir_validator import FhirValidator
except ImportError:
FhirValidator = None
class TestFhirValidatorTDD:
"""TDD tests for FHIR validation - healthcare grade"""
def setup_method(self):
"""Setup test FHIR bundles"""
self.valid_fhir_bundle = {
"resourceType": "Bundle",
"id": "test-bundle",
"type": "document",
"timestamp": "2025-06-03T00:00:00Z",
"entry": [
{
"resource": {
"resourceType": "Patient",
"id": "test-patient",
"identifier": [{"value": "123456789"}],
"name": [{"given": ["John"], "family": "Doe"}],
"birthDate": "1980-01-01"
}
},
{
"resource": {
"resourceType": "Observation",
"id": "test-observation",
"status": "final",
"code": {
"coding": [{
"system": "http://loinc.org",
"code": "85354-9",
"display": "Blood pressure"
}]
},
"subject": {"reference": "Patient/test-patient"},
"valueString": "140/90 mmHg"
}
}
]
}
self.invalid_fhir_bundle = {
"resourceType": "InvalidType",
"entry": []
}
@pytest.mark.unit
def test_fhir_validator_initialization(self):
"""Test: FHIR validator initializes correctly"""
# Given: FHIR validator configuration
# When: Creating validator
validator = FhirValidator()
# Then: Should initialize with healthcare-grade settings
assert validator is not None
assert validator.validation_level == 'healthcare_grade'
assert validator.fhir_version == 'R4'
@pytest.mark.unit
def test_validate_valid_fhir_bundle(self):
"""Test: Valid FHIR bundle passes validation"""
# Given: Valid FHIR bundle
validator = FhirValidator()
bundle = self.valid_fhir_bundle
# When: Validating bundle
result = validator.validate_bundle(bundle)
# Then: Should pass validation
assert result['is_valid'] is True
assert result['compliance_score'] > 0.9
assert len(result['errors']) == 0
assert result['fhir_r4_compliant'] is True
@pytest.mark.unit
def test_validate_invalid_fhir_bundle(self):
"""Test: Invalid FHIR bundle fails validation"""
# Given: Invalid FHIR bundle
validator = FhirValidator()
bundle = self.invalid_fhir_bundle
# When: Validating bundle
result = validator.validate_bundle(bundle)
# Then: Should fail validation
assert result['is_valid'] is False
assert result['compliance_score'] < 0.5
assert len(result['errors']) > 0
assert result['fhir_r4_compliant'] is False
@pytest.mark.unit
def test_validate_fhir_structure(self):
"""Test: FHIR structure validation"""
# Given: FHIR bundle with structure issues
validator = FhirValidator()
# When: Validating structure
result = validator.validate_structure(self.valid_fhir_bundle)
# Then: Should validate structure correctly
assert result['structure_valid'] is True
assert 'Bundle' in result['detected_resources']
assert 'Patient' in result['detected_resources']
assert 'Observation' in result['detected_resources']
@pytest.mark.unit
def test_validate_medical_terminology(self):
"""Test: Medical terminology validation (LOINC, SNOMED CT)"""
# Given: FHIR bundle with medical codes
validator = FhirValidator()
bundle = self.valid_fhir_bundle
# When: Validating terminology
result = validator.validate_terminology(bundle)
# Then: Should validate medical codes
assert result['terminology_valid'] is True
assert result['loinc_codes_valid'] is True
assert 'validated_codes' in result
assert len(result['validated_codes']) > 0
@pytest.mark.unit
def test_validate_hipaa_compliance(self):
"""Test: HIPAA compliance validation"""
# Given: FHIR bundle
validator = FhirValidator()
bundle = self.valid_fhir_bundle
# When: Checking HIPAA compliance
result = validator.validate_hipaa_compliance(bundle)
# Then: Should check HIPAA requirements
assert result['hipaa_compliant'] is True
assert result['phi_protection'] is True
assert result['security_tags_present'] is False # Test data has no security tags
@pytest.mark.unit
def test_calculate_compliance_score(self):
"""Test: Compliance score calculation"""
# Given: Validation results
validator = FhirValidator()
validation_data = {
'structure_valid': True,
'terminology_valid': True,
'hipaa_compliant': True,
'fhir_r4_compliant': True
}
# When: Calculating compliance score
score = validator.calculate_compliance_score(validation_data)
# Then: Should return high compliance score
assert score >= 0.95
assert isinstance(score, float)
assert 0.0 <= score <= 1.0
@pytest.mark.unit
def test_validate_with_healthcare_grade_level(self):
"""Test: Healthcare-grade validation level"""
# Given: Validator with healthcare-grade settings
validator = FhirValidator(validation_level='healthcare_grade')
bundle = self.valid_fhir_bundle
# When: Validating with strict healthcare standards
result = validator.validate_bundle(bundle, validation_level='healthcare_grade')
# Then: Should apply strict healthcare validation
assert result['validation_level'] == 'healthcare_grade'
assert result['strict_mode'] is True
assert result['medical_coding_validated'] is True
assert result['interoperability_score'] > 0.9 |