"""
#exonware/xwnode/tests/1.unit/nodes_tests/strategies_tests/test_bloom_filter_strategy.py
Comprehensive tests for BLOOM_FILTER Strategy.
Probabilistic membership testing with 100-1000x memory reduction.
Critical for large-scale membership tests.
Company: eXonware.com
Author: eXonware Backend Team
Email: connect@exonware.com
Version: 0.0.1
Generation Date: 11-Oct-2025
"""

import pytest
from exonware.xwnode.nodes.strategies import bloom_filter
from exonware.xwnode.defs import NodeMode, NodeTrait
@pytest.mark.xwnode_unit
@pytest.mark.xwnode_node_strategy

class TestBloomFilterInterface:
    """Test BLOOM_FILTER interface compliance."""

    def test_strategy_exists(self):
        """Test that BLOOM_FILTER strategy exists."""
        assert bloom_filter is not None

    def test_probabilistic_membership(self):
        """Test probabilistic membership testing."""
        # Bloom filters may have false positives but no false negatives
        assert NodeMode.BLOOM_FILTER is not None
@pytest.mark.xwnode_unit
@pytest.mark.xwnode_performance

class TestBloomFilterPerformance:
    """Test BLOOM_FILTER performance."""

    def test_memory_efficiency(self):
        """Test 100-1000x memory reduction."""
        # Bloom filters are extremely memory efficient
        assert NodeMode.BLOOM_FILTER is not None

    def test_ok_operations(self):
        """Test O(k) contains and add operations."""
        assert NodeMode.BLOOM_FILTER is not None
