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

tests/test_ch10_field_spec_validate_none.py

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+import pytest
+import sys
+from pathlib import Path
+
+ch10_dir = Path(__file__).resolve().parent.parent / "chapter10" / "autonomous-phone-registration"
+if str(ch10_dir) not in sys.path:
+    sys.path.insert(0, str(ch10_dir))
+
+from models import FieldSpec
+
+
+def test_validate_none_value_when_required():
+    field = FieldSpec(name="username", label="用户名", required=True)
+    valid, msg = field.validate(None)
+    assert valid is False
+    assert "必填" in msg
+
+
+def test_validate_none_value_when_optional():
+    field = FieldSpec(name="middle_name", label="中间名", required=False)
+    valid, msg = field.validate(None)
+    assert valid is True
+    assert msg == ""
+
+
+def test_validate_whitespace_when_required():
+    field = FieldSpec(name="email", label="邮箱", required=True)
+    valid, msg = field.validate("   ")
+    assert valid is False
+    assert "必填" in msg
+
+
+def test_validate_valid_email_and_none_optional():
+    email_field = FieldSpec(name="email", label="邮箱", input_type="email", required=False)
+    valid, msg = email_field.validate(None)
+    assert valid is True
+
+    valid_email, _ = email_field.validate("test@example.com")
+    assert valid_email is True
+
+    invalid_email, _ = email_field.validate("invalid-email")
+    assert invalid_email is False
+
+
+def test_validate_options_with_none():
+    option_field = FieldSpec(name="gender", label="性别", options=["Male", "Female"], required=False)
+    valid, msg = option_field.validate(None)
+    assert valid is True
+
+    valid_opt, _ = option_field.validate("Male")
+    assert valid_opt is True
+
+    invalid_opt, _ = option_field.validate("Other")
+    assert invalid_opt is False