107 lines
3.5 KiB
Python
107 lines
3.5 KiB
Python
# tests/test_helpers.py
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from pathlib import Path
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from ctf.helpers import check_for_flag
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# {{{ test_check_for_flag
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def test_check_for_flag():
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"""
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Verifies that check_for_flag extracts multiple matching flags or returns empty list.
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"""
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res = check_for_flag("flag{one} and flag{two}")
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assert set(res) == {"flag{one}", "flag{two}"}
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res_custom = check_for_flag("custom{first} custom{second}", r"custom\{[a-z]+\}")
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assert set(res_custom) == {"custom{first}", "custom{second}"}
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assert check_for_flag("no flag matches here") == []
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# }}}
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# {{{ test_is_valid_flag
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def test_is_valid_flag():
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"""
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Verifies that is_valid_flag validates flags and supports uniqueness checks.
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"""
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from ctf.helpers import is_valid_flag
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# Valid flag
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assert is_valid_flag("flag{test}")
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# Invalid flag
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assert not is_valid_flag("no flag here")
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# Uniqueness check (success)
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assert is_valid_flag("flag{new}", original="flag{old}")
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# Uniqueness check (failure)
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assert not is_valid_flag("flag{same}", original="flag{same}")
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# }}}
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# {{{ test_flag_detector_stream_detection
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def test_flag_detector_stream_detection():
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"""
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Verifies that FlagDetectorStream successfully intercepts writes to output potential flags.
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"""
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from io import StringIO
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from ctf.helpers import FlagDetectorStream
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out = StringIO()
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stream = FlagDetectorStream(out, r"flag\{[a-z_]+\}")
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stream.write("Some text before flag{my_flag_here} and text after.")
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output = out.getvalue()
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assert "Potential flag(s) detected in command output" in output
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assert "flag{my_flag_here}" in output
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# }}}
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# {{{ test_flag_detector_stream_anchored_stripping
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def test_flag_detector_stream_anchored_stripping():
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"""
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Verifies that FlagDetectorStream strips standard anchors ^ and $ to support substring searches.
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"""
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from io import StringIO
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from ctf.helpers import FlagDetectorStream
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out = StringIO()
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stream = FlagDetectorStream(out, r"^flag\{[a-z_]+\}$")
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stream.write("random flag{my_flag_here} data")
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output = out.getvalue()
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assert "Potential flag(s) detected in command output" in output
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assert "flag{my_flag_here}" in output
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# }}}
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# {{{ test_flag_detector_stream_no_pattern
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def test_flag_detector_stream_no_pattern():
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"""
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Verifies that FlagDetectorStream passes through text unmodified if no flag pattern is configured.
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"""
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from io import StringIO
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from ctf.helpers import FlagDetectorStream
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out = StringIO()
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stream = FlagDetectorStream(out, "")
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stream.write("normal output flag{hello}")
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assert out.getvalue() == "normal output flag{hello}"
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# }}}
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# {{{ test_flag_detector_stream_persistence
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def test_flag_detector_stream_persistence():
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"""
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Verifies that FlagDetectorStream writes the detected flag to config.toml.
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"""
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from io import StringIO
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from ctf.helpers import FlagDetectorStream
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from ctf.config import load_config, write_config
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config_file = Path("/home/venus/code/ctf/config.toml")
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original_config = load_config(str(config_file))
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try:
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out = StringIO()
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stream = FlagDetectorStream(out, r"flag\{[a-z_]+\}")
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stream.write("found flag{persisted_flag} in stdout")
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# Reload config and check last_flag
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updated_config = load_config(str(config_file))
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assert updated_config.get("Competition", {}).get("last_flag") == "flag{persisted_flag}"
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finally:
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write_config(original_config, str(config_file))
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# }}}
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