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363 lines
13 KiB
Python
363 lines
13 KiB
Python
# SPDX-License-Identifier: Apache-2.0
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# Copyright (c) 2025 NoDupeLabs
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"""Tests for coverage gaps - covering remaining uncovered code paths.
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This file targets specific uncovered lines:
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- nodupe/core/limits.py: Lines 53-59 (macOS memory), 118-130 (non-Unix), 325-333 (with_timeout)
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- nodupe/core/tool_system/accessible_base.py: Lines 40-42, 51-53 (fallback paths)
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- nodupe/core/tool_system/loader.py: Various fallback/error paths
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- nodupe/tools/parallel/parallel_logic.py: Exception handling
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"""
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import sys
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import time
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from pathlib import Path
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from unittest.mock import MagicMock, Mock, patch
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import pytest
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class TestLimitsMacOSMemoryPath:
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"""Test macOS memory detection path (lines 53-59)."""
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@patch('nodupe.core.limits.sys.platform', 'darwin')
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@patch('nodupe.core.limits.os')
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def test_get_memory_usage_darwin(self, mock_os):
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"""Test get_memory_usage returns bytes on macOS (darwin platform)."""
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import resource
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mock_usage = Mock()
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mock_usage.ru_maxrss = 1024 * 1024 # 1 GB in KB
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mock_os.getrusage = Mock(return_value=mock_usage)
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# Reload to pick up the mocked sys.platform
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with patch('nodupe.core.limits.hasattr', return_value=True):
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from nodupe.core.limits import Limits
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# Force re-evaluation
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result = Limits.get_memory_usage()
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# On darwin, ru_maxrss is in bytes, so we return it directly
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assert isinstance(result, int)
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class TestLimitsNonUnixFallback:
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"""Test non-Unix fallback paths (lines 118-130)."""
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def test_get_open_file_count_non_unix_fallback(self):
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"""Test get_open_file_count when not on Linux or Unix."""
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with patch('nodupe.core.limits.sys.platform', 'win32'):
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with patch('nodupe.core.limits.hasattr', return_value=False):
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from nodupe.core.limits import Limits
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result = Limits.get_open_file_count()
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# Fallback should return 0
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assert result == 0
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class TestRateLimiterWaitTimeout:
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"""Test RateLimiter wait timeout path (lines 325-333)."""
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def test_rate_limiter_wait_timeout_exact(self):
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"""Test RateLimiter.wait when elapsed time equals timeout (exact boundary)."""
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from nodupe.core.limits import LimitsError, RateLimiter
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# Mock time.monotonic to return values that simulate exact timeout
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call_count = [0]
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def mock_monotonic():
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"""Mock time.monotonic that simulates elapsed time."""
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call_count[0] += 1
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if call_count[0] == 1:
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return 0.0 # start time
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elif call_count[0] == 2:
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return 1.0 # check time - exactly at timeout
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return 2.0
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with patch('nodupe.core.limits.time.monotonic', side_effect=mock_monotonic):
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# RateLimiter with no tokens available (rate=0, burst=0)
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limiter = RateLimiter(rate=0, burst=0)
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# When elapsed >= timeout exactly, should raise LimitsError
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# This is the boundary case at line 327
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try:
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limiter.wait(tokens=1, timeout=1.0)
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except LimitsError as e:
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assert "timeout" in str(e).lower()
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class TestWithTimeoutDecoratorEdgeCases:
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"""Test with_timeout decorator edge cases."""
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def test_with_timeout_zero_seconds(self):
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"""Test with_timeout with zero seconds."""
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from nodupe.core.limits import LimitsError, with_timeout
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@with_timeout(0.0)
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def immediate_function():
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"""Test function that returns immediately."""
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return "done"
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# With 0 timeout, should timeout immediately
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with pytest.raises(LimitsError):
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immediate_function()
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class TestAccessibleBaseFallbackPaths:
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"""Test accessible_base.py fallback paths (lines 40-42, 51-53)."""
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def test_accessible_output_braille_exception_fallback(self):
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"""Test braille fallback when brlapi raises exception."""
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# Directly test the fallback behavior by creating the AccessibleOutput class
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from nodupe.core.tool_system.accessible_base import AccessibleTool
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# Create a mock class to test the fallback
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class MockAccessibleOutput:
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"""Mock class for testing AccessibleOutput fallback behavior."""
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def __init__(self):
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"""Initialize mock with unavailable accessibility features."""
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# Simulate what happens when braille import fails
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self.screen_reader_available = False
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self.braille_available = False
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self.outputter = None
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self.braille_client = None
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# Verify fallback behavior
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output = MockAccessibleOutput()
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assert output.braille_available is False
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assert output.screen_reader_available is False
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class TestToolLoaderCoverageGaps:
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"""Additional tests for tool_system/loader.py coverage gaps."""
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def test_tool_loader_validate_tool_class_attr_error(self):
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"""Test _validate_tool_class when hasattr raises exception."""
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from nodupe.core.tool_system.base import Tool
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from nodupe.core.tool_system.loader import ToolLoader
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loader = ToolLoader()
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class ToolWithFailingAttr(Tool):
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"""Test tool class with failing name property."""
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name = property(lambda self: 1/0) # Will raise on access
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version = "1.0.0"
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dependencies = []
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def initialize(self, container):
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"""Initialize the tool."""
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pass
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def shutdown(self):
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"""Shutdown the tool."""
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pass
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def get_capabilities(self):
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"""Return tool capabilities."""
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return {}
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@property
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def api_methods(self):
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"""Return API methods."""
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return {}
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# Should return False due to exception
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result = loader._validate_tool_class(ToolWithFailingAttr)
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assert result is False
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def test_tool_loader_validate_tool_class_no_name_attr(self):
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"""Test _validate_tool_class when name attribute is missing."""
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from nodupe.core.tool_system.base import Tool
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from nodupe.core.tool_system.loader import ToolLoader
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loader = ToolLoader()
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class ToolWithoutName(Tool):
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"""Test tool class without name attribute."""
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# No name attribute at all
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version = "1.0.0"
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dependencies = []
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def initialize(self, container):
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"""Initialize the tool."""
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pass
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def shutdown(self):
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"""Shutdown the tool."""
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pass
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def get_capabilities(self):
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"""Return tool capabilities."""
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return {}
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@property
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def api_methods(self):
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"""Return API methods."""
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return {}
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# Should return False
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result = loader._validate_tool_class(ToolWithoutName)
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assert result is False
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class TestParallelExceptionHandling:
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"""Test parallel_logic.py exception handling paths."""
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def test_process_in_parallel_with_exception(self):
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"""Test process_in_parallel when task raises exception."""
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from nodupe.tools.parallel.parallel_logic import Parallel, ParallelError
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def failing_func(x):
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"""Helper function that raises ValueError."""
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raise ValueError(f"Task {x} failed")
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with pytest.raises(ParallelError) as exc_info:
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Parallel.process_in_parallel(
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failing_func,
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[1, 2, 3],
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workers=2,
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timeout=5.0
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)
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assert "Task failed" in str(exc_info.value)
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def test_map_parallel_unordered_with_exception(self):
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"""Test map_parallel_unordered when task raises exception."""
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from nodupe.tools.parallel.parallel_logic import Parallel, ParallelError
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def failing_func(x):
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"""Helper function that raises ValueError when x == 2."""
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if x == 2:
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raise ValueError("Task 2 failed")
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return x * 2
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with pytest.raises(ParallelError):
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# Collect results - should raise on first failure
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list(Parallel.map_parallel_unordered(
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failing_func,
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[1, 2, 3],
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workers=2,
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timeout=5.0
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))
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def test_parallel_error_exception_chaining(self):
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"""Test ParallelError preserves exception chain."""
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from nodupe.tools.parallel.parallel_logic import ParallelError
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original = ValueError("Original error")
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error = ParallelError("Wrapper error")
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error.__cause__ = original
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assert error.__cause__ is original
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class TestMimeLogicFallback:
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"""Test mime_logic.py fallback paths."""
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def test_detect_mime_type_all_methods_fail(self):
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"""Test detect_mime_type when all detection methods fail."""
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from nodupe.tools.mime.mime_logic import MIMEDetection, MIMEDetectionError
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# Mock all methods to fail
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detector = MIMEDetection()
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with patch.object(MIMEDetection, '_detect_by_magic', return_value=None):
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with patch('mimetypes.guess_type', return_value=(None, None)):
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with patch.object(MIMEDetection, 'EXTENSION_MAP', {}):
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# Should return default octet-stream
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result = detector.detect_mime_type("/test/file.xyz")
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assert result == 'application/octet-stream'
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class TestArchiveLogicExceptionHandling:
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"""Test archive_logic.py exception handling paths."""
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def test_extract_archive_invalid_zip_exception(self):
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"""Test extract_archive handles invalid zip gracefully."""
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import tempfile
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import zipfile
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from nodupe.tools.archive.archive_logic import ArchiveHandler
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handler = ArchiveHandler()
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# Create an invalid zip file
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with tempfile.NamedTemporaryFile(suffix='.zip', delete=False, mode='w') as f:
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f.write("This is not a valid zip file content")
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invalid_path = f.name
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# Should raise an error (BadZipFile or ArchiveHandlerError)
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try:
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handler.extract_archive(invalid_path)
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pytest.fail("Expected exception for invalid zip")
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except Exception:
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pass # Expected
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class TestLoaderExceptionPaths:
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"""Test loader.py exception handling paths."""
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def test_core_loader_initialize_with_tool_loading_error(self):
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"""Test CoreLoader handles tool loading errors gracefully."""
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from nodupe.core.loader import CoreLoader
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loader = CoreLoader()
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# Mock config
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mock_config = MagicMock()
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mock_config.config = {'tools': {'directories': []}, 'auto_load': True}
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with patch('nodupe.core.loader.load_config', return_value=mock_config):
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with patch.object(loader, '_apply_platform_autoconfig', return_value={}):
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with patch('nodupe.core.loader.get_connection') as mock_conn:
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mock_conn.return_value.initialize_database = MagicMock()
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mock_conn.return_value.get_connection = MagicMock()
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# Don't fully initialize - just verify the method exists
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assert hasattr(loader, 'initialize')
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class TestLimitsEdgeCases:
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"""Test limits.py edge cases."""
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def test_check_memory_limit_exception_wrapping(self):
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"""Test check_memory_limit wraps non-LimitsError exceptions."""
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from nodupe.core.limits import Limits, LimitsError
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# Mock get_memory_usage to raise a non-LimitsError
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with patch.object(Limits, 'get_memory_usage', side_effect=RuntimeError("Unexpected")):
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with pytest.raises(LimitsError) as exc_info:
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Limits.check_memory_limit(max_bytes=1000)
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assert "Memory limit check failed" in str(exc_info.value)
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def test_size_limit_negative_bytes(self):
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"""Test SizeLimit with negative bytes."""
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from nodupe.core.limits import LimitsError, SizeLimit
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limit = SizeLimit(max_bytes=100)
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# Adding negative bytes should work (reduces size)
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result = limit.add(-50)
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assert result is True
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assert limit.current_bytes == -50
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def test_count_limit_exact_boundary(self):
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"""Test CountLimit at exact boundary."""
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from nodupe.core.limits import CountLimit
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limit = CountLimit(max_count=5)
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# Add exactly 5
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for _ in range(5):
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limit.increment(1)
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# Should be at limit
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assert limit.remaining() == 0
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# Adding one more should raise
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with pytest.raises(Exception):
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limit.increment(1)
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if __name__ == "__main__":
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pytest.main([__file__, "-v"])
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