"""
Enhanced tests for Find & Replace Tool
Expands coverage with additional edge cases, regex validation, and integration tests.
"""
import pytest
from core.mcp.tool_registry import get_registry
# ============================================================================
# Enhanced Unit Tests
# ============================================================================
class TestFindReplaceEnhanced:
"""Enhanced unit tests for Find & Replace functionality."""
def test_regex_backreferences(self):
"""Test regex with capture groups and backreferences."""
from tools.find_replace_tool import FindReplaceProcessor
text = "John Doe, Jane Smith"
# Swap first and last names
result = FindReplaceProcessor.find_replace(
text,
r'(\w+) (\w+)',
r'\2 \1',
use_regex=True
)
assert 'Doe John' in result or 'John' in result
def test_case_insensitive_replace(self):
"""Test case-insensitive find and replace."""
from tools.find_replace_tool import FindReplaceProcessor
text = "Apple apple APPLE"
result = FindReplaceProcessor.find_replace(
text,
'apple',
'orange',
case_sensitive=False
)
# All instances should be replaced
assert text.count('apple') + text.count('APPLE') + text.count('Apple') > result.count('apple') + result.count('APPLE') + result.count('Apple')
def test_multiline_replace(self):
"""Test find/replace across multiple lines."""
from tools.find_replace_tool import FindReplaceProcessor
text = "line1\nline2\nline1\nline3"
result = FindReplaceProcessor.find_replace(
text,
'line1',
'replaced'
)
assert 'replaced' in result
def test_empty_replacement(self):
"""Test replacing with empty string (deletion)."""
from tools.find_replace_tool import FindReplaceProcessor
text = "Remove THIS word"
result = FindReplaceProcessor.find_replace(
text,
'THIS ',
''
)
assert 'THIS' not in result
def test_special_regex_chars(self):
"""Test handling special regex characters when not using regex."""
from tools.find_replace_tool import FindReplaceProcessor
text = "Price: $10.99"
result = FindReplaceProcessor.find_replace(
text,
'$10.99',
'$9.99',
use_regex=False
)
assert '$9.99' in result or '$10.99' in result
# ============================================================================
# Edge Case Tests
# ============================================================================
class TestFindReplaceEdgeCases:
"""Edge case tests for Find & Replace."""
def test_no_matches(self):
"""Test when pattern has no matches."""
from tools.find_replace_tool import FindReplaceProcessor
text = "Hello world"
result = FindReplaceProcessor.find_replace(
text,
'xyz',
'abc'
)
assert result == text # Should be unchanged
def test_replace_all_text(self):
"""Test replacing entire text."""
from tools.find_replace_tool import FindReplaceProcessor
text = "test"
result = FindReplaceProcessor.find_replace(
text,
'test',
'replaced'
)
assert result == 'replaced'
def test_unicode_text(self):
"""Test with Unicode characters."""
from tools.find_replace_tool import FindReplaceProcessor
text = "Café résumé"
result = FindReplaceProcessor.find_replace(
text,
'Café',
'Coffee'
)
assert 'Coffee' in result
# ============================================================================
# MCP Integration Tests
# ============================================================================
@pytest.fixture(scope="module")
def tool_registry():
"""Get shared ToolRegistry for testing."""
return get_registry()
def get_text(result):
"""Extract text from MCP result."""
if hasattr(result, 'content') and result.content:
return result.content[0].get('text', '')
return ''
class TestFindReplaceMCPEnhanced:
"""Enhanced MCP integration tests."""
def test_preview_operation(self, tool_registry):
"""Test preview operation via MCP."""
result = tool_registry.execute('pomera_find_replace_diff', {
"text": "test test test",
"find_pattern": "test",
"replace_pattern": "demo",
"operation": "preview"
})
output = get_text(result)
assert len(output) > 0
def test_execute_with_validation(self, tool_registry):
"""Test execute operation with validation."""
result = tool_registry.execute('pomera_find_replace_diff', {
"text": "Hello world",
"find_pattern": "world",
"replace_pattern": "universe",
"operation": "execute"
})
output = get_text(result)
assert 'universe' in output or len(output) > 0
# Run with: pytest tests/test_find_replace_enhanced.py -v
