ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter5/video-edit/test_slowmo_factor_zero.py

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+"""Regression: slowmo factor<=0 must not ZeroDivisionError."""
+from pathlib import Path
+
+
+def test_source_skips_nonpositive_factor():
+    src = Path(__file__).with_name("video_editor.py").read_text()
+    assert "if factor <= 0:" in src
+    assert "continue" in src.split("if factor <= 0:")[1][:80]
+
+
+def test_division_guard_math():
+    factor = 0.0
+    if factor <= 0:
+        skipped = True
+    else:
+        _ = 1.0 / factor
+        skipped = False
+    assert skipped is True