2026-10-17 00:00:20 +00:00
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#!/usr/bin/env python3
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"""Smoke test: does midikit+songkit produce a valid, parseable, playable file?
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Run from repo root: python3 tests/smoke_test.py"""
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import os, sys
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "lib"))
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from midikit import MidiFile, Track, MPQN, note, note_name, read, verify
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from songkit import bar, melody, arp, bass_drive, drums, vibrato, humanize, parse_score
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assert note("A4") == 69 and note("C#5") == 73 and note("Bb3") == 58
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assert note_name(69) == "A4" and note_name(60) == "C4"
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mf = MidiFile(tpq=480)
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mf.time_sig = (4, 2)
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mf.key_sig = (-1, True) # D minor
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lead = Track("Lead", channel=0)
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lead.program(0, "square lead")
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melody(lead, 0, "D4 A4-8 D5-8 F5-8 E5-4 D5-2")
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vibrato(lead, bar(0), bar(4), channel=0, tempo_bpm=120)
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bass = Track("Bass", channel=1)
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bass.program(0, "synth bass 1")
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bass_drive(bass, 0, [("D", "m"), ("Bb", "")])
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acomp = Track("Arp", channel=2)
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acomp.program(0, "electric piano 1")
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arp(acomp, 0, [("D", "m"), ("Bb", "")])
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d = Track("Drums", channel=9)
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drums(d, 0, 2, "rock")
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mf.add_track(lead); mf.add_track(bass); mf.add_track(acomp); mf.add_track(d)
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mf.tempos = [MPQN.from_bpm(0, 120)]
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2026-10-17 06:59:04 +00:00
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mf.set_loop(bar(0), bar(2)) # loop the whole 2-bar demo
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2026-10-17 00:00:20 +00:00
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path = "/tmp/midikit_smoke.mid"
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mf.write(path)
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d = verify(path, min_sec=1, max_sec=30)
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print("OK:", path, d["duration_sec"], "sec,",
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sum(len(t["notes"]) for t in d["tracks"]), "notes,",
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len(d["tracks"]), "tracks")
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2026-10-17 06:59:04 +00:00
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# loop markers must survive the round-trip in all three conventions
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markers = sorted(set(m[1] for t in d["tracks"] for m in t["markers"]))
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expected = sorted(["LOOP_START", "LOOP_END", "RPR LOOP START", "RPR LOOP END",
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"LoopBegin", "LoopEnd"])
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assert markers == expected, "loop markers wrong: %s" % markers
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print("loop markers OK:", ", ".join(markers))
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2026-10-17 00:00:20 +00:00
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# cross-check with mido if present (third-party parser as second opinion)
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try:
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import mido
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m = mido.MidiFile(path)
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print("mido agrees:", m.length, "sec,", len(m.tracks), "tracks")
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assert abs(m.length - d["duration_sec"]) < 0.5
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except ImportError:
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print("(mido not installed; skipping cross-check)")
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