dmwf994
048460facd
- Bug 1 (高): remove_item_by_id 从偏移量 4 读取 from_id，与修正后的解析器不一致。改为偏移量 0。 - Bug 2 (高): _parse_references_from_children 无条件重置同类型引用条目，导致多条目覆盖。改为 setdefault。 - Bug 4 (低): get_thumbnail_data 中精确匹配与移位匹配的条件合并为单次 O(n) 扫描。 - Bug 5 (低): get_grid_layout 冗余字典查找合并为单次 .get() 调用。 通过 examples/ 下 4 个 HEIC 样例文件验证通过。
222 lines
7.7 KiB
Python
222 lines
7.7 KiB
Python
"""
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测试脚本：验证 code review 中发现的 bug 修复情况。
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验证项目：
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Bug 1: remove_item_by_id 偏移量修正
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Bug 2: 同类型 iref 子 box 不再覆盖
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Bug 4: if→elif（无运行时影响，语法改进）
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Bug 5: get_grid_layout 冗余查找消除
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Bug 6: get_thumbnail_data 双次扫描合并
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"""
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import sys
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import os
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from pathlib import Path
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ROOT_DIR = Path(__file__).resolve().parents[1]
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sys.path.insert(0, str(ROOT_DIR))
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from pyheic_struct import HEICFile
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EXAMPLE_DIR = ROOT_DIR / "examples"
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HEIC_FILES = [
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"apple.HEIC",
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"apple_samsung_compatible.heic",
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"samsung.heic",
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"samsung_apple_compatible.HEIC",
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]
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def separator(title: str):
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print(f"\n{'─' * 60}\n {title}\n{'─' * 60}")
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def test_parse_and_references(filepath: str) -> dict:
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"""测试解析并检查 references 字典 (验证 Bug 2: setdefault)"""
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print(f"\n [Bug 2 验证] 解析 references 字典...")
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heic = HEICFile(filepath)
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primary_id = heic.get_primary_item_id()
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print(f" 主图像 ID: {primary_id}")
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if not heic._iref_box:
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print(" ⚠ 无 iref box，跳过 references 检查")
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return {"primary_id": primary_id}
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refs = heic._iref_box.references
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print(f" 引用类型: {list(refs.keys())}")
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for ref_type, entries in refs.items():
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print(f" [{ref_type}] 条目数: {len(entries)}")
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for from_id, to_ids in entries.items():
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print(f" from_id={from_id} → to_ids={to_ids}")
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# Bug 2 验证：如果同类型有多个条目，说明 setdefault 生效
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if len(entries) > 1:
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print(f" ✅ 同类型多条目已完整保留 (setdefault 生效)")
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elif len(entries) == 1:
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print(f" ℹ 该类型仅有 1 个条目 (无法区分修复前后)")
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else:
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print(f" ⚠ 该类型无条目")
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result = {"primary_id": primary_id}
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# 记录 thmb/dimg 用于后续测试
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if 'thmb' in refs:
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first_thmb = next(iter(refs['thmb'].items()), None)
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if first_thmb:
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result['thmb_from_id'] = first_thmb[0]
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result['thmb_to_ids'] = first_thmb[1]
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if 'dimg' in refs:
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first_dimg = next(iter(refs['dimg'].items()), None)
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if first_dimg:
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result['dimg_from_id'] = first_dimg[0]
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result['dimg_to_ids'] = first_dimg[1]
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return result
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def test_thumbnail(filepath: str) -> bool:
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"""测试缩略图提取 (验证 Bug 4/6: elif 和合并条件)"""
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print(f"\n [Bug 4/6 验证] 提取缩略图...")
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heic = HEICFile(filepath)
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data = heic.get_thumbnail_data()
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if data:
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print(f" ✅ 缩略图提取成功: {len(data)} bytes")
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return True
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else:
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print(f" ℹ 无缩略图 (文件可能不含 thmb 引用)")
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return False
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def test_grid_layout(filepath: str) -> bool:
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"""测试网格布局 (验证 Bug 5: 冗余字典查找消除)"""
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print(f"\n [Bug 5 验证] 获取网格布局...")
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heic = HEICFile(filepath)
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tiles = heic.get_grid_layout()
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if tiles:
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print(f" ✅ 网格图块: {tiles} (共 {len(tiles)} 个)")
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return True
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else:
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print(f" ℹ 无网格布局 (文件非网格图像)")
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return False
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def test_remove_item(filepath: str, refs_info: dict):
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"""测试 remove_item_by_id (验证 Bug 1: 偏移量修正)"""
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print(f"\n [Bug 1 验证] remove_item_by_id...")
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# 选一个可删除的非主 item
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target_id = refs_info.get('thmb_from_id')
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if not target_id:
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target_id = refs_info.get('dimg_from_id')
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if not target_id:
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# 尝试从 references 中找一个
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print(" ℹ 没有合适的非主 item 可删除，跳过 Bug 1 验证")
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return
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print(f" 将删除 item ID: {target_id}")
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# 删除前：重新解析文件，记录状态
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heic = HEICFile(filepath)
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irig_box = heic._iref_box
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if not irig_box:
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print(" ⚠ 无 iref box，跳过")
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return
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children_before = len(irig_box.children)
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refs_keys_before = {}
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for rt, entries in irig_box.references.items():
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refs_keys_before[rt] = set(entries.keys())
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print(f" 删除前: children={children_before}, references keys={refs_keys_before}")
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# 执行删除
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heic.remove_item_by_id(target_id)
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# 删除后：验证
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children_after = len(irig_box.children)
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refs_keys_after = {}
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for rt, entries in irig_box.references.items():
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refs_keys_after[rt] = set(entries.keys())
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print(f" 删除后: children={children_after}, references keys={refs_keys_after}")
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# Bug 1 验证：from_id 为 target_id 的子 box 是否被正确移除
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if target_id in refs_keys_before.get('thmb', set()) or target_id in refs_keys_before.get('dimg', set()):
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found_in_key = any(target_id in keys for keys in refs_keys_after.values())
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if not found_in_key:
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print(f" ✅ item {target_id} 已从 references 键中移除")
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# children 应该也减少了
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if children_after < children_before:
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print(f" ✅ children 列表同步减少 (Bug 1 偏移量修正生效)")
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else:
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print(f" ⚠ children 未减少 — 可能 child 未从 children 中移除")
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else:
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print(f" ❌ item {target_id} 仍在 references 中")
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elif target_id in refs_info.get('thmb_to_ids', []):
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to_cleaned = True
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for rt, entries in irig_box.references.items():
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for fid, tids in entries.items():
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if target_id in tids:
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to_cleaned = False
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break
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if to_cleaned:
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print(f" ✅ to_id {target_id} 已从所有引用列表中清理")
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else:
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print(f" ❌ to_id {target_id} 仍在引用列表中")
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else:
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print(f" ℹ 无法判定移除效果（target_id 不在已知引用中）")
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def main():
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print("=" * 70)
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print(" pyheic_struct Code Review Bug 修复验证")
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print("=" * 70)
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results = {}
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for filename in HEIC_FILES:
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filepath = str(EXAMPLE_DIR / filename)
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if not os.path.exists(filepath):
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print(f"\n⚠ SKIP: {filename} (文件不存在)")
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continue
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separator(f"测试: {filename} ({os.path.getsize(filepath):,} bytes)")
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try:
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refs_info = test_parse_and_references(filepath)
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ok_thumb = test_thumbnail(filepath)
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ok_grid = test_grid_layout(filepath)
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test_remove_item(filepath, refs_info)
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results[filename] = {
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"refs": refs_info,
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"thumbnail": ok_thumb,
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"grid": ok_grid,
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}
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except Exception as e:
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print(f"\n ❌ 测试失败: {e}")
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import traceback
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traceback.print_exc()
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results[filename] = {"error": str(e)}
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# 汇总
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separator("测试汇总")
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print(f"\n {'文件':<40} {'解析':<8} {'缩略图':<8} {'网格':<8}")
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print(f" {'─' * 40} {'─' * 8} {'─' * 8} {'─' * 8}")
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for filename, info in results.items():
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if "error" in info:
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print(f" {filename:<40} {'❌ 失败':<8} {'-':<8} {'-':<8}")
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continue
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refs_ok = "✅" if info["refs"].get("primary_id") else "⚠"
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thumb_ok = "✅" if info["thumbnail"] else "—"
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grid_ok = "✅" if info["grid"] else "—"
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print(f" {filename:<40} {refs_ok:<8} {thumb_ok:<8} {grid_ok:<8}")
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print(f"\n ✅ 测试完成。")
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print(f" Bug 1 (remove_item_by_id 偏移量): 需查看具体文件日志")
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print(f" Bug 2 (setdefault 覆盖): 查看多条目引用类型条目数")
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print(f" Bug 4/6 (elif/合并条件): 缩略图提取成功即验证通过")
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print(f" Bug 5 (冗余查找): 网格布局成功即验证通过")
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if __name__ == "__main__":
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main()
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