mirror of
https://github.com/wiltodelta/remove-ai-watermarks.git
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f2fc5e09ab
SD-1.5 dreamshaper at 768 px did not defeat SynthID v2 on Gemini 3 Pro outputs (verified May 2026 via Gemini app's "Verify with SynthID"). Switch the default invisible engine to SDXL at 1024 px, matching the raiw-app production config (strength 0.05, steps 50). Drop the SD-1.5 pipeline. Metadata layer: add C2PA UUID and IPTC AI marker byte-scan detection across all formats, plus an ISOBMFF box walker (noai/isobmff.py) that strips top-level C2PA uuid and JUMBF jumb boxes from AVIF/HEIF/JPEG-XL containers without re-encoding. README gets a Legal table and a Threat-model section about SynthID v2's 136-bit payload. CLAUDE.md tracks the SD-1.5 regression as historical context. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
166 lines
5.9 KiB
Python
166 lines
5.9 KiB
Python
"""Tests for cross-platform and cross-device compatibility.
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Verifies that device detection, MPS fallback, and platform-specific
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code paths work correctly on CPU, MPS (macOS), and CUDA (Linux/Windows).
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"""
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from __future__ import annotations
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from unittest.mock import patch
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import pytest
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from remove_ai_watermarks.noai.progress import is_mps_error
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from remove_ai_watermarks.noai.utils import get_image_format, is_supported_format
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from remove_ai_watermarks.noai.watermark_profiles import (
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detect_model_profile,
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get_model_id_for_profile,
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get_recommended_strength,
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)
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from remove_ai_watermarks.noai.watermark_remover import get_device, is_watermark_removal_available
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# ── Device detection ────────────────────────────────────────────────
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class TestDeviceDetection:
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"""Tests for get_device() across platforms."""
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def test_returns_valid_device(self):
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device = get_device()
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assert device in ("cpu", "mps", "cuda")
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def test_cpu_fallback_when_no_gpu(self):
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"""On CI / machines without GPU, should fall back to cpu or mps."""
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device = get_device()
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# Just verify it doesn't crash and returns a valid string
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assert isinstance(device, str)
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@patch("remove_ai_watermarks.noai.watermark_remover._HAS_TORCH", False)
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def test_no_torch_returns_cpu(self):
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assert get_device() == "cpu"
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class TestMpsErrorDetection:
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"""Tests for MPS error detection helper."""
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def test_detects_mps_error(self):
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err = RuntimeError("MPS backend out of memory")
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assert is_mps_error(err) is True
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def test_non_mps_error(self):
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err = RuntimeError("CUDA out of memory")
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assert is_mps_error(err) is False
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def test_generic_error(self):
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err = RuntimeError("something went wrong")
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assert is_mps_error(err) is False
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# ── Model profiles ──────────────────────────────────────────────────
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class TestModelProfiles:
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"""Tests for watermark_profiles.py."""
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def test_default_profile(self):
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assert get_model_id_for_profile("default") == "stabilityai/stable-diffusion-xl-base-1.0"
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def test_ctrlregen_profile(self):
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assert get_model_id_for_profile("ctrlregen") == "yepengliu/ctrlregen"
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def test_unknown_profile_raises(self):
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with pytest.raises(ValueError, match="Unknown model profile"):
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get_model_id_for_profile("nonexistent")
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def test_detect_default(self):
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assert detect_model_profile("stabilityai/stable-diffusion-xl-base-1.0") == "default"
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def test_detect_ctrlregen(self):
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assert detect_model_profile("yepengliu/ctrlregen") == "ctrlregen"
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def test_recommended_strength_high(self):
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assert get_recommended_strength("treering") == 0.7
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def test_recommended_strength_low(self):
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assert get_recommended_strength("stablesignature") == 0.04
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def test_recommended_strength_medium(self):
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assert get_recommended_strength("unknown_type") == 0.35
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# ── Format utilities ────────────────────────────────────────────────
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class TestFormatUtils:
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"""Tests for utils.py format helpers."""
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def test_supported_png(self, tmp_path):
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assert is_supported_format(tmp_path / "test.png")
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def test_supported_jpg(self, tmp_path):
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assert is_supported_format(tmp_path / "test.jpg")
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def test_supported_jpeg(self, tmp_path):
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assert is_supported_format(tmp_path / "test.jpeg")
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def test_supported_webp(self, tmp_path):
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assert is_supported_format(tmp_path / "test.webp")
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def test_unsupported_bmp(self, tmp_path):
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assert not is_supported_format(tmp_path / "test.bmp")
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def test_unsupported_gif(self, tmp_path):
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assert not is_supported_format(tmp_path / "test.gif")
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def test_get_format_png(self, tmp_path):
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assert get_image_format(tmp_path / "x.png") == "PNG"
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def test_get_format_jpg(self, tmp_path):
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assert get_image_format(tmp_path / "x.jpg") == "JPEG"
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def test_get_format_jpeg(self, tmp_path):
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assert get_image_format(tmp_path / "x.jpeg") == "JPEG"
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def test_get_format_webp_defaults_png(self, tmp_path):
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# .webp falls through to PNG in current implementation
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assert get_image_format(tmp_path / "x.webp") == "PNG"
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# ── Availability checks ────────────────────────────────────────────
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class TestAvailability:
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"""Tests for dependency availability checks."""
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def test_watermark_removal_available(self):
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# In dev env with torch+diffusers installed
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assert is_watermark_removal_available() is True
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def test_invisible_is_available(self):
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from remove_ai_watermarks.invisible_engine import is_available
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assert is_available() is True
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# ── Platform-specific path handling ─────────────────────────────────
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class TestPlatformPaths:
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"""Verify path handling works on current platform."""
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def test_pathlib_works_for_assets(self):
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from pathlib import Path
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asset_dir = Path(__file__).parent.parent / "src" / "remove_ai_watermarks" / "assets"
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assert (asset_dir / "gemini_bg_48.png").exists()
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assert (asset_dir / "gemini_bg_96.png").exists()
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def test_asset_loading_works(self):
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"""Verify embedded assets load correctly (critical for packaging)."""
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from remove_ai_watermarks.gemini_engine import GeminiEngine
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engine = GeminiEngine()
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# If we get here without error, asset loading works
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assert engine._alpha_small.shape == (48, 48)
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assert engine._alpha_large.shape == (96, 96)
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