testsAndMisc-archive/python_pkg/moviepy_showcase/tests/test_audio_output.py
Krzysztof kuhy Rudnicki 996617d4a0 test: achieve 100% branch coverage across all python_pkg packages
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2026-03-21 17:51:36 +01:00

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Python

"""Tests for python_pkg.moviepy_showcase._moviepy_audio_output."""
from __future__ import annotations
from unittest.mock import MagicMock
import numpy as np
from python_pkg.moviepy_showcase._moviepy_audio_output import (
_make_sine,
part4_audio,
part5_composition,
part6_drawing_tools,
part7_output,
)
# ── _make_sine inner maker branches ──────────────────────────────
def test_make_sine_returns_clip() -> None:
clip = _make_sine(440.0, 2.0)
assert clip is not None
def test_make_sine_maker_scalar() -> None:
"""maker() with scalar t → t_arr.ndim == 0 → returns 1-D."""
import moviepy as mp
mp.AudioClip.side_effect = lambda *a, **kw: MagicMock()
_make_sine(440.0, 1.0)
maker = mp.AudioClip.call_args[0][0]
result = maker(0.0)
assert isinstance(result, np.ndarray)
assert result.ndim == 1
assert result.shape == (2,)
def test_make_sine_maker_array() -> None:
"""maker() with array t → t_arr.ndim > 0 → returns 2-D."""
import moviepy as mp
mp.AudioClip.side_effect = lambda *a, **kw: MagicMock()
_make_sine(440.0, 1.0)
maker = mp.AudioClip.call_args[0][0]
t = np.linspace(0, 1, 100)
result = maker(t)
assert isinstance(result, np.ndarray)
assert result.ndim == 2
assert result.shape == (100, 2)
# ── part functions ───────────────────────────────────────────────
def test_part4_audio() -> None:
result = part4_audio()
assert isinstance(result, list)
assert len(result) > 0
def test_part5_composition() -> None:
result = part5_composition()
assert isinstance(result, list)
assert len(result) > 0
def test_part6_drawing_tools() -> None:
result = part6_drawing_tools()
assert isinstance(result, list)
assert len(result) > 0
def test_part7_output() -> None:
result = part7_output()
assert isinstance(result, list)
assert len(result) > 0