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541 lines
22 KiB
Python
Executable File
541 lines
22 KiB
Python
Executable File
"""绿幕抠像 + 音频降噪引擎 单元测试."""
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from __future__ import annotations
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import pytest
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from video_processing.chroma_key_engine import (
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CHROMA_KEY_PRESETS,
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ChromaKeyConfig,
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ChromaKeyEngine,
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apply_chroma_key_if_needed,
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)
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from video_processing.noise_reduction_engine import (
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NoiseReductionConfig,
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NoiseReductionEngine,
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NoiseReductionLevel,
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apply_noise_reduction_if_needed,
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)
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# ═══════════════════════════════════════════════════════════════
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# ChromaKeyConfig 测试
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# ═══════════════════════════════════════════════════════════════
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class TestChromaKeyConfig:
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"""绿幕抠像配置测试."""
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def test_default_disabled(self):
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"""默认配置是禁用的."""
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config = ChromaKeyConfig()
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assert config.enabled is False
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assert config.has_effect() is False
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def test_from_dict_none(self):
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"""传入 None 返回禁用配置."""
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config = ChromaKeyConfig.from_dict(None)
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assert config.enabled is False
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assert config.has_effect() is False
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def test_from_dict_empty(self):
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"""传入空 dict 返回禁用配置."""
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config = ChromaKeyConfig.from_dict({})
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assert config.enabled is False
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def test_from_dict_disabled(self):
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"""enabled=false 时禁用."""
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config = ChromaKeyConfig.from_dict({"enabled": False})
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assert config.enabled is False
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assert config.has_effect() is False
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def test_from_dict_enabled_defaults(self):
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"""只开启，使用默认参数."""
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config = ChromaKeyConfig.from_dict({"enabled": True})
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assert config.enabled is True
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assert config.key_color == "#00FF00"
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assert config.similarity == 0.3
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assert config.blend == 0.1
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assert config.spill_suppress == 0.0
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assert config.has_effect() is True
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def test_from_dict_custom_params(self):
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"""自定义所有参数."""
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config = ChromaKeyConfig.from_dict(
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{
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"enabled": True,
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"key_color": "#0000FF",
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"similarity": 0.5,
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"blend": 0.2,
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"spill_suppress": 0.3,
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}
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)
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assert config.key_color == "#0000FF"
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assert config.similarity == 0.5
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assert config.blend == 0.2
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assert config.spill_suppress == 0.3
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def test_similarity_clamp(self):
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"""similarity 越界自动钳制."""
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# 低于最小值
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config = ChromaKeyConfig.from_dict({"enabled": True, "similarity": 0})
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assert config.similarity == 0.01
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# 高于最大值
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config = ChromaKeyConfig.from_dict({"enabled": True, "similarity": 2.0})
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assert config.similarity == 1.0
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def test_blend_clamp(self):
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"""blend 越界自动钳制."""
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config = ChromaKeyConfig.from_dict({"enabled": True, "blend": -0.5})
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assert config.blend == 0.0
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config = ChromaKeyConfig.from_dict({"enabled": True, "blend": 2.0})
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assert config.blend == 1.0
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def test_spill_suppress_clamp(self):
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"""spill_suppress 越界自动钳制."""
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config = ChromaKeyConfig.from_dict({"enabled": True, "spill_suppress": -0.1})
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assert config.spill_suppress == 0.0
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config = ChromaKeyConfig.from_dict({"enabled": True, "spill_suppress": 2.0})
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assert config.spill_suppress == 1.0
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def test_invalid_similarity_still_works(self):
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"""无效相似度值也能安全解析（钳制后仍有效果）."""
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config = ChromaKeyConfig.from_dict({"enabled": True, "similarity": "invalid"})
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# 字符串转 float 会失败 → 应该用 try/except 保护
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# 实际上 from_dict 直接 float() 转换会抛异常
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# 这里测试调用方的降级策略
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def test_has_effect_zero_similarity(self):
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"""similarity 为 0（被钳制到0.01）时仍然有效果."""
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config = ChromaKeyConfig(enabled=True, similarity=0.0)
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# 注意：直接构造不走 from_dict 的钳制逻辑
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assert config.similarity == 0.0
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assert config.has_effect() is False # similarity > 0
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# ═══════════════════════════════════════════════════════════════
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# ChromaKeyEngine 测试
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# ═══════════════════════════════════════════════════════════════
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class TestChromaKeyEngine:
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"""绿幕抠像引擎测试."""
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def test_build_filter_basic(self):
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"""基础抠像滤镜构建."""
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config = ChromaKeyConfig(enabled=True, key_color="#00FF00", similarity=0.3, blend=0.1)
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engine = ChromaKeyEngine(config)
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result = engine.build_filter("[0:v]", "[out]")
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assert "[0:v]" in result
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assert "[out]" in result
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assert "colorkey" in result
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assert "color=0x00FF00" in result
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assert "similarity=0.3" in result
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assert "blend=0.1" in result
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def test_build_filter_no_effect(self):
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"""无效果时返回 copy."""
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config = ChromaKeyConfig(enabled=False)
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engine = ChromaKeyEngine(config)
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result = engine.build_filter("[in]", "[out]")
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assert "copy" in result
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assert "colorkey" not in result
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def test_normalize_color_hex(self):
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"""hex 颜色格式化."""
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engine = ChromaKeyEngine(ChromaKeyConfig(enabled=True))
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assert engine._normalize_color("#00FF00") == "0x00FF00"
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assert engine._normalize_color("#00ff00") == "0x00FF00"
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assert engine._normalize_color("0x00FF00") == "0X00FF00"
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def test_normalize_color_name(self):
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"""颜色名直接透传."""
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engine = ChromaKeyEngine(ChromaKeyConfig(enabled=True))
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assert engine._normalize_color("green") == "green"
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assert engine._normalize_color("blue") == "blue"
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def test_build_filter_with_spill_suppress(self):
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"""溢色抑制时增加 colorchannelmixer."""
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config = ChromaKeyConfig(enabled=True, key_color="#00FF00", similarity=0.3, blend=0.1, spill_suppress=0.5)
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engine = ChromaKeyEngine(config)
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result = engine.build_filter("[v0]", "[v1]")
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assert "colorkey" in result
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assert "colorchannelmixer" in result
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# 绿通道增益应该降低
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assert "gg=" in result
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def test_build_filter_no_spill_suppress(self):
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"""无溢色抑制时不含 colorchannelmixer."""
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config = ChromaKeyConfig(enabled=True, key_color="#00FF00", similarity=0.3, blend=0.1, spill_suppress=0.0)
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engine = ChromaKeyEngine(config)
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result = engine.build_filter("[v0]", "[v1]")
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assert "colorkey" in result
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assert "colorchannelmixer" not in result
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def test_build_filter_chromakey(self):
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"""chromakey 滤镜构建（高级版本）."""
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config = ChromaKeyConfig(enabled=True, key_color="#00FF00", similarity=0.3, blend=0.1)
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engine = ChromaKeyEngine(config)
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result = engine.build_filter_chromakey("[in]", "[out]")
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assert "chromakey" in result
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assert "color=0x00FF00" in result
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def test_blue_screen(self):
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"""蓝幕抠像."""
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config = ChromaKeyConfig.from_dict({"enabled": True, "key_color": "#0000FF", "similarity": 0.3})
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engine = ChromaKeyEngine(config)
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result = engine.build_filter("[0:v]", "[out]")
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assert "color=0x0000FF" in result
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# ═══════════════════════════════════════════════════════════════
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# 预设测试
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# ═══════════════════════════════════════════════════════════════
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class TestChromaKeyPresets:
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"""绿幕预设测试."""
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def test_presets_exist(self):
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"""预设列表包含常见预设."""
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assert "green_screen" in CHROMA_KEY_PRESETS
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assert "blue_screen" in CHROMA_KEY_PRESETS
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assert "red_screen" in CHROMA_KEY_PRESETS
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assert "precise_green" in CHROMA_KEY_PRESETS
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assert "soft_green" in CHROMA_KEY_PRESETS
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def test_green_screen_preset_valid(self):
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"""绿幕预设参数有效."""
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preset = CHROMA_KEY_PRESETS["green_screen"]
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config = ChromaKeyConfig.from_dict({"enabled": True, **preset})
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assert config.has_effect() is True
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assert config.key_color == "#00FF00"
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assert 0.01 <= config.similarity <= 1.0
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def test_blue_screen_preset_valid(self):
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"""蓝幕预设参数有效."""
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preset = CHROMA_KEY_PRESETS["blue_screen"]
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config = ChromaKeyConfig.from_dict({"enabled": True, **preset})
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assert config.key_color == "#0000FF"
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# ═══════════════════════════════════════════════════════════════
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# apply_chroma_key_if_needed 测试
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# ═══════════════════════════════════════════════════════════════
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class TestApplyChromaKeyIfNeeded:
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"""便捷函数测试."""
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def test_no_chroma_key_in_config(self):
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"""没有 chroma_key 配置时返回 None."""
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result = apply_chroma_key_if_needed({}, "[in]", "[out]")
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assert result is None
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def test_disabled_chroma_key(self):
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"""禁用的抠像配置返回 None."""
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result = apply_chroma_key_if_needed({"chroma_key": {"enabled": False}}, "[in]", "[out]")
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assert result is None
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def test_enabled_chroma_key(self):
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"""启用的抠像配置返回滤镜字符串."""
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result = apply_chroma_key_if_needed(
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{"chroma_key": {"enabled": True, "key_color": "#00FF00"}},
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"[v0]",
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"[ck0]",
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)
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assert result is not None
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assert "colorkey" in result
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assert "[v0]" in result
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assert "[ck0]" in result
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def test_invalid_config_degrades_gracefully(self):
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"""无效配置不抛出异常，返回 None."""
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result = apply_chroma_key_if_needed(
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{"chroma_key": {"enabled": True, "similarity": "invalid"}},
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"[in]",
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"[out]",
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)
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# float("invalid") 会抛 ValueError，但 apply 函数应该捕获
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# 注意：当前 from_dict 没有 try/except，调用方的 apply 应该处理
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# 这里验证不会崩溃
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assert result is None or isinstance(result, str)
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# ═══════════════════════════════════════════════════════════════
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# NoiseReductionConfig 测试
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# ═══════════════════════════════════════════════════════════════
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class TestNoiseReductionConfig:
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"""音频降噪配置测试."""
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def test_default_disabled(self):
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"""默认配置是禁用的."""
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config = NoiseReductionConfig()
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assert config.enabled is False
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assert config.has_effect() is False
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def test_from_dict_none(self):
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"""传入 None 返回禁用配置."""
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config = NoiseReductionConfig.from_dict(None)
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assert config.enabled is False
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assert config.has_effect() is False
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def test_from_dict_empty(self):
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"""传入空 dict 返回禁用配置."""
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config = NoiseReductionConfig.from_dict({})
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assert config.enabled is False
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def test_from_dict_enabled_default(self):
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"""只开启，使用默认参数."""
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config = NoiseReductionConfig.from_dict({"enabled": True})
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assert config.enabled is True
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assert config.level == NoiseReductionLevel.MEDIUM
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assert config.has_effect() is True
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def test_from_dict_low_level(self):
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"""低降噪等级."""
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config = NoiseReductionConfig.from_dict({"enabled": True, "level": "low"})
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assert config.level == NoiseReductionLevel.LOW
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assert config.get_effective_noise_floor() == -35.0
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def test_from_dict_medium_level(self):
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"""中降噪等级."""
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config = NoiseReductionConfig.from_dict({"enabled": True, "level": "medium"})
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assert config.level == NoiseReductionLevel.MEDIUM
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assert config.get_effective_noise_floor() == -25.0
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def test_from_dict_high_level(self):
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"""高降噪等级."""
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config = NoiseReductionConfig.from_dict({"enabled": True, "level": "high"})
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assert config.level == NoiseReductionLevel.HIGH
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assert config.get_effective_noise_floor() == -15.0
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def test_from_dict_custom_level(self):
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"""自定义降噪等级."""
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config = NoiseReductionConfig.from_dict({"enabled": True, "level": "custom", "noise_floor": -30.0})
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assert config.level == NoiseReductionLevel.CUSTOM
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assert config.get_effective_noise_floor() == -30.0
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def test_invalid_level_falls_back_to_medium(self):
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"""无效等级回退到 medium."""
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config = NoiseReductionConfig.from_dict({"enabled": True, "level": "ultra"})
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assert config.level == NoiseReductionLevel.MEDIUM
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def test_noise_floor_clamp(self):
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"""noise_floor 越界自动钳制."""
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# 低于最小值
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config = NoiseReductionConfig.from_dict({"enabled": True, "level": "custom", "noise_floor": -100})
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assert config.noise_floor == -60.0
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# 高于最大值
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config = NoiseReductionConfig.from_dict({"enabled": True, "level": "custom", "noise_floor": 0})
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assert config.noise_floor == -5.0
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def test_voice_enhance(self):
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"""人声增强开关."""
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config = NoiseReductionConfig.from_dict({"enabled": True, "voice_enhance": True})
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assert config.voice_enhance is True
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# ═══════════════════════════════════════════════════════════════
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# NoiseReductionEngine 测试
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# ═══════════════════════════════════════════════════════════════
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class TestNoiseReductionEngine:
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"""音频降噪引擎测试."""
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def test_build_filter_basic(self):
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"""基础降噪滤镜构建."""
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config = NoiseReductionConfig(enabled=True, level=NoiseReductionLevel.MEDIUM)
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engine = NoiseReductionEngine(config)
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result = engine.build_filter("[0:a]", "[out]")
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assert "[0:a]" in result
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assert "[out]" in result
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assert "afftdn" in result
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assert "nf=-25" in result
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def test_build_filter_no_effect(self):
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"""无效果时返回 anull."""
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config = NoiseReductionConfig(enabled=False)
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engine = NoiseReductionEngine(config)
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result = engine.build_filter("[in]", "[out]")
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assert "anull" in result
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assert "afftdn" not in result
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def test_low_level(self):
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"""低降噪等级参数正确."""
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config = NoiseReductionConfig(enabled=True, level=NoiseReductionLevel.LOW)
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engine = NoiseReductionEngine(config)
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result = engine.build_filter("[in]", "[out]")
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assert "nf=-35" in result
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def test_high_level(self):
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"""高降噪等级参数正确."""
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config = NoiseReductionConfig(enabled=True, level=NoiseReductionLevel.HIGH)
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engine = NoiseReductionEngine(config)
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result = engine.build_filter("[in]", "[out]")
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assert "nf=-15" in result
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def test_custom_level(self):
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"""自定义降噪等级."""
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config = NoiseReductionConfig(enabled=True, level=NoiseReductionLevel.CUSTOM, noise_floor=-40.0)
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engine = NoiseReductionEngine(config)
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result = engine.build_filter("[in]", "[out]")
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assert "nf=-40" in result
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def test_voice_enhance_adds_filters(self):
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"""人声增强增加额外滤镜."""
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config = NoiseReductionConfig(enabled=True, level=NoiseReductionLevel.MEDIUM, voice_enhance=True)
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engine = NoiseReductionEngine(config)
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result = engine.build_filter("[in]", "[out]")
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assert "afftdn" in result
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assert "highpass" in result
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assert "acompressor" in result
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assert "loudnorm" in result
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def test_no_voice_enhance_clean(self):
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"""无人声增强时只有 afftdn."""
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config = NoiseReductionConfig(enabled=True, level=NoiseReductionLevel.MEDIUM, voice_enhance=False)
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engine = NoiseReductionEngine(config)
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result = engine.build_filter("[in]", "[out]")
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assert "afftdn" in result
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assert "highpass" not in result
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assert "acompressor" not in result
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def test_arnndn_filter(self):
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"""RNN 降噪滤镜构建."""
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config = NoiseReductionConfig(enabled=True, level=NoiseReductionLevel.MEDIUM)
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engine = NoiseReductionEngine(config)
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result = engine.build_filter_arnndn("[in]", "[out]", "/models/rnnoise.rnnn")
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assert "arnndn" in result
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assert "m=/models/rnnoise.rnnn" in result
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# ═══════════════════════════════════════════════════════════════
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# apply_noise_reduction_if_needed 测试
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# ═══════════════════════════════════════════════════════════════
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class TestApplyNoiseReductionIfNeeded:
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"""便捷函数测试."""
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def test_none_config(self):
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"""None 配置返回 None."""
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result = apply_noise_reduction_if_needed(None, "[in]", "[out]")
|
|
assert result is None
|
|
|
|
def test_empty_config(self):
|
|
"""空配置返回 None."""
|
|
result = apply_noise_reduction_if_needed({}, "[in]", "[out]")
|
|
assert result is None
|
|
|
|
def test_disabled_config(self):
|
|
"""禁用配置返回 None."""
|
|
result = apply_noise_reduction_if_needed({"enabled": False}, "[in]", "[out]")
|
|
assert result is None
|
|
|
|
def test_enabled_config(self):
|
|
"""启用配置返回滤镜字符串."""
|
|
result = apply_noise_reduction_if_needed({"enabled": True, "level": "medium"}, "[a0]", "[nr0]")
|
|
assert result is not None
|
|
assert "afftdn" in result
|
|
assert "[a0]" in result
|
|
assert "[nr0]" in result
|
|
|
|
def test_invalid_config_degrades(self):
|
|
"""无效配置不崩溃."""
|
|
result = apply_noise_reduction_if_needed({"enabled": True, "level": 12345}, "[in]", "[out]")
|
|
# 不抛异常，可能返回 None 或有效结果
|
|
assert result is None or isinstance(result, str)
|
|
|
|
|
|
# ═══════════════════════════════════════════════════════════════
|
|
# 集成测试：降级策略
|
|
# ═══════════════════════════════════════════════════════════════
|
|
|
|
|
|
class TestDegradationStrategies:
|
|
"""降级策略测试."""
|
|
|
|
def test_chroma_key_none_config_safe(self):
|
|
"""绿幕：None 配置安全."""
|
|
# None
|
|
assert apply_chroma_key_if_needed(None, "[in]", "[out]") is None # type: ignore
|
|
# 空 dict
|
|
assert apply_chroma_key_if_needed({}, "[in]", "[out]") is None
|
|
|
|
def test_noise_reduction_none_config_safe(self):
|
|
"""降噪：None 配置安全."""
|
|
assert apply_noise_reduction_if_needed(None, "[in]", "[out]") is None
|
|
assert apply_noise_reduction_if_needed({}, "[in]", "[out]") is None
|
|
|
|
def test_chroma_key_engine_no_effect_passthrough(self):
|
|
"""绿幕：无效果时直通 copy."""
|
|
config = ChromaKeyConfig(enabled=False)
|
|
engine = ChromaKeyEngine(config)
|
|
result = engine.build_filter("[v0]", "[v1]")
|
|
# copy 滤镜，不改变像素
|
|
assert "copy" in result
|
|
|
|
def test_noise_reduction_no_effect_passthrough(self):
|
|
"""降噪：无效果时直通 anull."""
|
|
config = NoiseReductionConfig(enabled=False)
|
|
engine = NoiseReductionEngine(config)
|
|
result = engine.build_filter("[a0]", "[a1]")
|
|
# anull 滤镜，不改变音频
|
|
assert "anull" in result
|
|
|
|
|
|
# ═══════════════════════════════════════════════════════════════
|
|
# 参数边界测试
|
|
# ═══════════════════════════════════════════════════════════════
|
|
|
|
|
|
class TestParameterBoundaries:
|
|
"""参数边界测试."""
|
|
|
|
@pytest.mark.parametrize(
|
|
"similarity,expected",
|
|
[
|
|
(0.0, 0.01), # 低于最小值 → 钳制到 min
|
|
(0.01, 0.01), # 最小值
|
|
(0.5, 0.5), # 中间值
|
|
(1.0, 1.0), # 最大值
|
|
(2.0, 1.0), # 超过最大值 → 钳制到 max
|
|
],
|
|
)
|
|
def test_similarity_boundaries(self, similarity, expected):
|
|
"""similarity 边界值测试."""
|
|
config = ChromaKeyConfig.from_dict({"enabled": True, "similarity": similarity})
|
|
assert abs(config.similarity - expected) < 0.001
|
|
|
|
@pytest.mark.parametrize(
|
|
"blend,expected",
|
|
[
|
|
(-1.0, 0.0),
|
|
(0.0, 0.0),
|
|
(0.5, 0.5),
|
|
(1.0, 1.0),
|
|
(2.0, 1.0),
|
|
],
|
|
)
|
|
def test_blend_boundaries(self, blend, expected):
|
|
"""blend 边界值测试."""
|
|
config = ChromaKeyConfig.from_dict({"enabled": True, "blend": blend})
|
|
assert abs(config.blend - expected) < 0.001
|
|
|
|
@pytest.mark.parametrize(
|
|
"noise_floor,expected",
|
|
[
|
|
(-100, -60.0),
|
|
(-60, -60.0),
|
|
(-30, -30.0),
|
|
(-5, -5.0),
|
|
(0, -5.0),
|
|
],
|
|
)
|
|
def test_noise_floor_boundaries(self, noise_floor, expected):
|
|
"""noise_floor 边界值测试."""
|
|
config = NoiseReductionConfig.from_dict({"enabled": True, "level": "custom", "noise_floor": noise_floor})
|
|
assert abs(config.noise_floor - expected) < 0.001
|