Jared Miller
388e693f8c
Parses MTTS bitfield values from telnetlib3 ttype3 into a ClientCaps dataclass. Includes color_depth property that returns the best available color mode (truecolor, 256, or 16) based on client capabilities.
117 lines
3.2 KiB
Python
117 lines
3.2 KiB
Python
"""Tests for MTTS capability parsing."""
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from mudlib.caps import parse_mtts
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def test_parse_mtts_tintin():
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"""Parse tintin++ MTTS 2825 correctly.
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2825 in binary = 0b101100001001
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Bits set: 0, 3, 8, 9, 11
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= ANSI(1) + 256colors(8) + truecolor(256) + MNES(512) + SSL(2048)
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"""
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caps = parse_mtts("MTTS 2825")
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assert caps.ansi is True
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assert caps.vt100 is False
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assert caps.utf8 is False
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assert caps.colors_256 is True
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assert caps.mouse_tracking is False
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assert caps.osc_color_palette is False
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assert caps.screen_reader is False
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assert caps.proxy is False
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assert caps.truecolor is True
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assert caps.mnes is True
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assert caps.mslp is False
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assert caps.ssl is True
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assert caps.color_depth == "truecolor"
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def test_parse_mtts_basic():
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"""Parse MTTS 137 (ANSI + 256colors + proxy)."""
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# 137 = 1 (ANSI) + 8 (256colors) + 128 (proxy)
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caps = parse_mtts("MTTS 137")
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assert caps.ansi is True
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assert caps.utf8 is False
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assert caps.colors_256 is True
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assert caps.proxy is True
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assert caps.truecolor is False
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assert caps.color_depth == "256"
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def test_parse_mtts_zero():
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"""Parse MTTS 0 (nothing supported)."""
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caps = parse_mtts("MTTS 0")
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assert caps.ansi is False
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assert caps.utf8 is False
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assert caps.colors_256 is False
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assert caps.truecolor is False
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assert caps.color_depth == "16"
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def test_parse_mtts_256_colors_only():
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"""Parse MTTS with JUST 256 colors (no truecolor)."""
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# 9 = 1 (ANSI) + 8 (256colors)
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caps = parse_mtts("MTTS 9")
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assert caps.ansi is True
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assert caps.utf8 is False
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assert caps.colors_256 is True
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assert caps.truecolor is False
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assert caps.color_depth == "256"
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def test_parse_mtts_utf8_no_colors():
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"""Parse MTTS with UTF-8 but no extended colors."""
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# 5 = 1 (ANSI) + 4 (UTF-8)
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caps = parse_mtts("MTTS 5")
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assert caps.ansi is True
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assert caps.utf8 is True
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assert caps.colors_256 is False
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assert caps.truecolor is False
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assert caps.color_depth == "16"
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def test_parse_mtts_empty():
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"""Handle empty string gracefully."""
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caps = parse_mtts("")
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assert caps.ansi is False
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assert caps.utf8 is False
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assert caps.color_depth == "16"
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def test_parse_mtts_none():
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"""Handle None gracefully."""
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caps = parse_mtts(None)
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assert caps.ansi is False
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assert caps.utf8 is False
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assert caps.color_depth == "16"
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def test_parse_mtts_non_mtts():
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"""Handle non-MTTS ttype3 strings (e.g., UNKNOWN-TERMINAL)."""
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caps = parse_mtts("UNKNOWN-TERMINAL")
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assert caps.ansi is False
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assert caps.utf8 is False
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assert caps.color_depth == "16"
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def test_parse_mtts_malformed():
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"""Handle malformed MTTS strings."""
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caps = parse_mtts("MTTS")
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assert caps.ansi is False
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assert caps.utf8 is False
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assert caps.color_depth == "16"
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def test_color_depth_priority():
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"""Verify color_depth returns best available mode."""
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# truecolor wins
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caps = parse_mtts("MTTS 2825")
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assert caps.color_depth == "truecolor"
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# 256 wins over 16
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caps = parse_mtts("MTTS 9")
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assert caps.color_depth == "256"
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# fallback to 16
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caps = parse_mtts("MTTS 5") # 1 (ANSI) + 4 (UTF-8)
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assert caps.color_depth == "16"
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