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98a428fd61
Detect leaked SGR mouse-report fragments in CLI input, strip them, and reset terminal modes in-place so scroll and typing recover without reopening the tab. Add regression tests for escaped, visible, and bare leak forms.
78 lines
3.0 KiB
Python
78 lines
3.0 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_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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