xixu-me
654d9f1666
Enhanced cleanup logic in `temp_dir` fixture to handle Windows-specific file locking issues. Updated tests to ensure suppressed exceptions during context manager exit and added manual cleanup for mocked objects to prevent resource leaks.
396 lines
16 KiB
Python
396 lines
16 KiB
Python
"""Tests to cover missing lines in core.py for improved coverage."""
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import tarfile
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from unittest.mock import MagicMock, patch
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import pytest
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from tzst.core import TzstArchive
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from tzst.exceptions import TzstArchiveError, TzstDecompressionError
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class TestCoreMissingLines:
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"""Test specific missing lines in core.py."""
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def test_append_mode_error_handling(self, temp_dir):
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"""Test append mode error handling (lines 126-137)."""
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archive_path = temp_dir / "test.tzst"
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# Test append mode raises NotImplementedError
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with pytest.raises(
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NotImplementedError, match="Append mode is not currently supported"
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):
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TzstArchive(archive_path, mode="a")
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def test_invalid_mode_error_after_open(self, temp_dir):
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"""Test invalid mode error in __enter__ method (line 137)."""
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archive_path = temp_dir / "test.tzst"
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# Create archive instance with invalid mode after validation passes
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archive = TzstArchive.__new__(TzstArchive)
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archive.filename = archive_path
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archive.mode = "invalid" # Set invalid mode after construction
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archive.compression_level = 3
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archive.streaming = False
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archive._tarfile = None
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archive._fileobj = None
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archive._compressed_stream = None
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with pytest.raises(TzstArchiveError, match="Failed to open archive"):
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archive.__enter__()
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def test_zstd_error_handling_in_open(self, temp_dir):
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"""Test zstd error handling during archive opening (lines 133-137)."""
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archive_path = temp_dir / "test.tzst"
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# Create a file that will cause zstd decompression error
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archive_path.write_bytes(b"invalid zstd data")
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# Try to open as read mode - should raise TzstDecompressionError
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with pytest.raises(TzstDecompressionError, match="Failed to open archive"):
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with TzstArchive(archive_path, mode="r"):
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pass
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def test_generic_error_handling_in_open(self, temp_dir):
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"""Test generic error handling during archive opening."""
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archive_path = temp_dir / "test.tzst"
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# Mock to raise a generic exception (not zstd-related)
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with patch("builtins.open", side_effect=PermissionError("Permission denied")):
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with pytest.raises(TzstArchiveError, match="Failed to open archive"):
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with TzstArchive(archive_path, mode="r"):
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pass
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def test_close_error_handling(self, temp_dir):
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"""Test error handling in close method (lines 146-157)."""
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archive_path = temp_dir / "test.tzst"
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# Create archive and manually set objects that will raise on close
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with TzstArchive(archive_path, mode="w") as archive:
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pass
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# Now manually create problematic objects
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archive = TzstArchive.__new__(TzstArchive)
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archive._tarfile = MagicMock()
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archive._tarfile.close.side_effect = Exception("Close error")
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archive._compressed_stream = MagicMock()
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archive._compressed_stream.close.side_effect = Exception("Close error")
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archive._fileobj = MagicMock()
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archive._fileobj.close.side_effect = Exception("Close error")
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# close() should handle exceptions gracefully
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archive.close() # Should not raise
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assert archive._tarfile is None
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assert archive._compressed_stream is None
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assert archive._fileobj is None
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def test_archive_not_open_for_reading_errors(self, temp_dir):
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"""Test RuntimeError for operations on archives not open for reading (lines 186, 188, 192)."""
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archive_path = temp_dir / "test.tzst"
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# Create archive in write mode
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with TzstArchive(archive_path, mode="w") as archive:
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# Test getmembers() on write mode
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with pytest.raises(RuntimeError, match="Archive not open for reading"):
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archive.getmembers()
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# Test getnames() on write mode
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with pytest.raises(RuntimeError, match="Archive not open for reading"):
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archive.getnames()
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# Test extractfile() on write mode
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with pytest.raises(RuntimeError, match="Archive not open for reading"):
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archive.extractfile("test")
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def test_streaming_member_extraction_error(self, temp_dir):
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"""Test streaming mode member extraction error (lines 242, 249-254)."""
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# Create a test archive first
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test_file = temp_dir / "test.txt"
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test_file.write_text("test content")
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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archive.add(str(test_file), arcname="test.txt")
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# Try to extract specific member in streaming mode
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with TzstArchive(archive_path, mode="r", streaming=True) as archive:
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members = archive.getmembers()
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member = members[0]
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extract_dir = temp_dir / "extract"
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extract_dir.mkdir() # Should raise RuntimeError for specific member extraction in streaming mode
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with pytest.raises(
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RuntimeError,
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match="Extracting specific members is not supported in streaming mode",
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):
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archive.extract(member=member.name, path=extract_dir)
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def test_streaming_extraction_failure_handling(self, temp_dir):
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"""Test streaming extraction failure handling (lines 263-272)."""
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# Create archive first
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test_file = temp_dir / "test.txt"
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test_file.write_text("test content")
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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archive.add(
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str(test_file), arcname="test.txt"
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) # Mock tarfile to raise StreamError
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with TzstArchive(archive_path, mode="r", streaming=True) as archive:
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extract_dir = temp_dir / "extract"
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extract_dir.mkdir()
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# Mock extractall to raise StreamError with streaming-related message
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with patch.object(
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archive._tarfile,
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"extractall",
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side_effect=tarfile.StreamError("seeking not supported"),
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):
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with pytest.raises(
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RuntimeError, match="Extraction failed in streaming mode"
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):
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archive.extract(path=extract_dir)
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def test_extractfile_not_open_error(self, temp_dir):
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"""Test extractfile when archive is not open (line 307)."""
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archive_path = temp_dir / "test.tzst"
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# Create closed archive
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archive = TzstArchive(archive_path, mode="r")
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# Don't open it
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with pytest.raises(RuntimeError, match="Archive not open"):
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archive.extractfile("test")
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def test_extractfile_write_mode_error(self, temp_dir):
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"""Test extractfile in write mode (already covered but ensuring line coverage)."""
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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with pytest.raises(RuntimeError, match="Archive not open for reading"):
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archive.extractfile("test")
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def test_add_method_not_open_error(self, temp_dir):
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"""Test add method when archive is not open (line 325, 327)."""
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archive_path = temp_dir / "test.tzst"
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test_file = temp_dir / "test.txt"
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test_file.write_text("test content")
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# Create archive but don't open it
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archive = TzstArchive(archive_path, mode="w")
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with pytest.raises(RuntimeError, match="Archive not open"):
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archive.add(str(test_file))
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def test_add_method_read_mode_error(self, temp_dir):
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"""Test add method in read mode (line 327)."""
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# Create archive first
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test_file = temp_dir / "test.txt"
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test_file.write_text("test content")
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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archive.add(str(test_file), arcname="test.txt")
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# Try to add to archive in read mode
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with TzstArchive(archive_path, mode="r") as archive:
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with pytest.raises(RuntimeError, match="Archive not open for writing"):
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archive.add(str(test_file))
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def test_file_not_found_in_add(self, temp_dir):
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"""Test file not found error in add method (line 373)."""
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archive_path = temp_dir / "test.tzst"
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missing_file = temp_dir / "missing.txt"
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with TzstArchive(archive_path, mode="w") as archive:
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with pytest.raises(FileNotFoundError):
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archive.add(str(missing_file))
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def test_add_method_generic_error_handling(self, temp_dir):
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"""Test generic error handling in add method (line 375)."""
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archive_path = temp_dir / "test.tzst"
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test_file = temp_dir / "test.txt"
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test_file.write_text("test content")
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with TzstArchive(archive_path, mode="w") as archive:
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# Mock add to raise generic exception
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with patch.object(
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archive._tarfile,
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"add",
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side_effect=PermissionError("Permission denied"),
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):
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with pytest.raises(TzstArchiveError, match="Failed to add"):
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archive.add(str(test_file))
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def test_test_method_not_open_error(self, temp_dir):
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"""Test test method when archive is not open (line 390-391)."""
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archive_path = temp_dir / "test.tzst"
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# Create archive but don't open it
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archive = TzstArchive(archive_path, mode="r")
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with pytest.raises(RuntimeError, match="Archive not open"):
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archive.test()
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def test_test_method_write_mode_error(self, temp_dir):
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"""Test test method in write mode (line 391)."""
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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with pytest.raises(RuntimeError, match="Archive not open for reading"):
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archive.test()
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def test_test_method_streaming_mode_info(self, temp_dir):
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"""Test test method streaming mode information (line 427)."""
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# Create archive first
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test_file = temp_dir / "test.txt"
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test_file.write_text("test content")
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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archive.add(str(test_file), arcname="test.txt")
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# Test in streaming mode - should provide different behavior info
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with TzstArchive(archive_path, mode="r", streaming=True) as archive:
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# This should work but may have streaming-specific behavior
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result = archive.test()
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assert isinstance(result, bool)
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def test_list_method_not_open_error(self, temp_dir):
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"""Test list method when archive is not open (line 454-455)."""
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archive_path = temp_dir / "test.tzst"
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# Create archive but don't open it
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archive = TzstArchive(archive_path, mode="r")
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with pytest.raises(RuntimeError, match="Archive not open"):
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list(archive.list())
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def test_list_method_write_mode_error(self, temp_dir):
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"""Test list method in write mode (line 455)."""
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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with pytest.raises(RuntimeError, match="Archive not open for reading"):
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list(archive.list())
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def test_context_manager_exception_handling(self, temp_dir):
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"""Test context manager exception handling (lines 502-504)."""
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archive_path = temp_dir / "test.tzst"
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# Store references for cleanup
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fileobj = None
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compressed_stream = None
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tarfile_obj = None
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# Test that close exceptions are suppressed during context manager exit
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with patch("tzst.core.TzstArchive.close", side_effect=Exception("Close error")):
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try:
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with TzstArchive(archive_path, mode="w") as archive:
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# Store references to underlying objects for manual cleanup
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fileobj = archive._fileobj
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compressed_stream = archive._compressed_stream
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tarfile_obj = archive._tarfile
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raise ValueError("Test exception")
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except ValueError:
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pass # Expected - the original exception should not be masked
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finally:
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# Manually clean up since mocked close() failed
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try:
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if tarfile_obj:
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tarfile_obj.close()
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except Exception:
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pass
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try:
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if compressed_stream:
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compressed_stream.close()
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except Exception:
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pass
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try:
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if fileobj:
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fileobj.close()
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except Exception:
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pass
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# Ensure the file is removed to prevent permission errors
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try:
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if archive_path.exists():
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archive_path.unlink()
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except (PermissionError, OSError):
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pass
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# The close exception should be suppressed by __exit__
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def test_streaming_mode_directory_creation_error(self, temp_dir):
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"""Test directory creation error in streaming mode (line 521)."""
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# Create archive first
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test_file = temp_dir / "test.txt"
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test_file.write_text("test content")
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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archive.add(str(test_file), arcname="test.txt")
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with TzstArchive(archive_path, mode="r", streaming=True) as archive:
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# Mock path creation to fail
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extract_dir = temp_dir / "extract"
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with patch("pathlib.Path.mkdir", side_effect=OSError("Permission denied")):
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with pytest.raises(OSError):
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archive.extractall(path=extract_dir)
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def test_list_verbose_mode_edge_cases(self, temp_dir):
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"""Test list method verbose mode edge cases (lines 573, 588-589)."""
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# Create archive with special files
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test_file = temp_dir / "test.txt"
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test_file.write_text("test content")
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# Create a directory
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test_dir = temp_dir / "test_dir"
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test_dir.mkdir()
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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archive.add(str(test_file), arcname="test.txt")
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archive.add(str(test_dir), arcname="test_dir")
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with TzstArchive(archive_path, mode="r") as archive:
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# Test verbose listing
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items = list(archive.list(verbose=True))
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assert len(items) >= 2
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# Should have both file and directory entries
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file_items = [item for item in items if item.get("is_file", False)]
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dir_items = [item for item in items if item.get("is_dir", False)]
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assert len(file_items) >= 1
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assert len(dir_items) >= 1
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def test_extractall_with_members_parameter(self, temp_dir):
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"""Test extractall with members parameter for selective extraction."""
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# Create archive with multiple files
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test_file1 = temp_dir / "test1.txt"
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test_file1.write_text("content1")
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test_file2 = temp_dir / "test2.txt"
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test_file2.write_text("content2")
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archive_path = temp_dir / "test.tzst"
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with TzstArchive(archive_path, mode="w") as archive:
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archive.add(str(test_file1), arcname="test1.txt")
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archive.add(str(test_file2), arcname="test2.txt")
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# Extract only specific members
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with TzstArchive(archive_path, mode="r") as archive:
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members = archive.getmembers()
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first_member = members[0]
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extract_dir = temp_dir / "extract"
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extract_dir.mkdir()
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# Extract only first member
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archive.extractall(path=extract_dir, members=[first_member])
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# Verify only one file was extracted
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extracted_files = list(extract_dir.glob("*.txt"))
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assert len(extracted_files) == 1
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