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82 lines
3.2 KiB
Python
82 lines
3.2 KiB
Python
"""Tests for defensive terminal control-response stripping in the CLI.
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Covers Cursor Position Report (CPR / DSR) responses that occasionally
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leak into the input buffer after terminal resize storms or multiplexer
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tab switches — see issue #14692.
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"""
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from cli import _strip_leaked_terminal_responses
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class TestStripLeakedTerminalResponses:
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def test_plain_text_unchanged(self):
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text = "hello world"
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assert _strip_leaked_terminal_responses(text) == text
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def test_empty_text(self):
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assert _strip_leaked_terminal_responses("") == ""
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def test_strips_canonical_dsr_response(self):
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# Reports from issue #14692
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text = "\x1b[53;1R"
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assert _strip_leaked_terminal_responses(text) == ""
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def test_strips_dsr_response_in_middle_of_text(self):
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text = "hello\x1b[53;1Rworld"
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assert _strip_leaked_terminal_responses(text) == "helloworld"
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def test_strips_multiple_dsr_responses(self):
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text = "a\x1b[53;1Rb\x1b[51;1Rc\x1b[50;9Rd"
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assert _strip_leaked_terminal_responses(text) == "abcd"
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def test_strips_visible_form_dsr(self):
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# When an upstream filter has already stripped the ESC byte and
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# left the caret-escape representation in place.
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text = "^[[53;1R"
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assert _strip_leaked_terminal_responses(text) == ""
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def test_strips_visible_form_dsr_in_middle_of_text(self):
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text = "typed^[[53;1Rmore"
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assert _strip_leaked_terminal_responses(text) == "typedmore"
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def test_does_not_strip_user_text_with_R(self):
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# Don't over-match; user might genuinely type text containing [N;NR patterns.
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# Our regex requires the leading ESC or caret-escape, so bare
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# "[53;1R" as user text is preserved.
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text = "see section [53;1R for details"
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assert _strip_leaked_terminal_responses(text) == text
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def test_does_not_strip_sgr_sequences(self):
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# Sanity: don't wipe legitimate terminal control sequences that
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# aren't DSR responses.
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text = "\x1b[31mred\x1b[0m"
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assert _strip_leaked_terminal_responses(text) == text
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def test_preserves_multiline_content(self):
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text = "line 1\n\x1b[53;1Rline 2"
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assert _strip_leaked_terminal_responses(text) == "line 1\nline 2"
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def test_strips_sgr_mouse_report_esc_form(self):
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text = "abc\x1b[<65;1;49Mdef"
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assert _strip_leaked_terminal_responses(text) == "abcdef"
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def test_strips_sgr_mouse_report_visible_form(self):
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text = "abc^[[<65;1;49Mdef"
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assert _strip_leaked_terminal_responses(text) == "abcdef"
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def test_strips_sgr_mouse_report_bare_form(self):
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text = "abc<65;1;49Mdef"
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assert _strip_leaked_terminal_responses(text) == "abcdef"
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def test_strips_sgr_mouse_report_with_large_coordinates(self):
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text = "abc\x1b[<10000;12345;98765Mdef"
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assert _strip_leaked_terminal_responses(text) == "abcdef"
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def test_strips_multiple_concatenated_sgr_mouse_reports(self):
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text = "<65;1;49M<35;1;42Mhello<64;1;40m"
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assert _strip_leaked_terminal_responses(text) == "hello"
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def test_does_not_strip_regular_angle_bracket_text(self):
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text = "render <div class='hero'> literal"
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assert _strip_leaked_terminal_responses(text) == text
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