2026-10-12 16:44:49 +08:00
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"""出厂默认与快照深合并（E4 配置演进）——Task 3 TDD 用例。
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覆盖：
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- deep_merge 三性质：缺省补齐 / 不动入参 / 兄弟键保留
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- TenantConfig.from_snapshot 的站点模型：覆盖生效、未覆盖项继承租户级 brand、
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无 sites 时空元组
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"""
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from app.platform.defaults import DEFAULT_CONFIG, deep_merge
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from app.platform.tenant_config import Site, TenantConfig
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# ---------- deep_merge 三性质 ----------
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def test_missing_keys_filled_from_defaults():
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snapshot = {"brand": {"title": "X"}} # 快照缺一大堆键
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merged = deep_merge(DEFAULT_CONFIG, snapshot)
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assert merged["brand"]["title"] == "X" # 覆盖生效
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assert "color" in merged["brand"] # 缺省补齐
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assert "wall" in merged and "push" in merged # 顶层组补齐
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def test_snapshot_not_mutated():
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snapshot = {"brand": {"title": "X"}}
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deep_merge(DEFAULT_CONFIG, snapshot)
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assert snapshot == {"brand": {"title": "X"}}
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def test_nested_override_keeps_sibling():
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snapshot = {"email": {"sender_name": "【T】"}}
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merged = deep_merge(DEFAULT_CONFIG, snapshot)
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assert merged["email"]["sender_name"] == "【T】"
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assert "notify_emails" in merged["email"] # 兄弟键保留默认
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# ---------- TenantConfig / Site 站点模型 ----------
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def test_site_overrides_and_inherits_tenant_brand():
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"""站点覆盖项生效；未覆盖项继承租户级 brand（而非出厂默认）。"""
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tenant = TenantConfig.from_snapshot(
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slug="t1",
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name="Tenant 1",
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snapshot={"brand": {"title": "T Co", "welcome": "hi from tenant"}},
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sites=[
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{"slug": "s1", "name": "Site 1", "domains": ["a.com"],
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"brand": {"color": "#ff0000"}},
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],
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)
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site = tenant.sites[0]
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assert isinstance(site, Site)
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assert site.slug == "s1"
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assert site.name == "Site 1"
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assert site.domains == ("a.com",)
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assert site.brand["color"] == "#ff0000" # 站点覆盖生效
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assert site.brand["title"] == "T Co" # 继承租户级 brand
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assert site.brand["welcome"] == "hi from tenant"
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# 站点 brand 是独立副本，不与租户 data 共享可变对象
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assert site.brand is not tenant.data["brand"]
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def test_tenant_without_sites():
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"""无 sites 时 sites 为空元组，data 正常深合并。"""
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tenant = TenantConfig.from_snapshot(
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slug="t2", name="Tenant 2", snapshot={"ai": {"model": "glm-4-plus"}},
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)
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assert tenant.sites == ()
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assert tenant.status == "active"
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assert tenant.data["ai"]["model"] == "glm-4-plus" # 覆盖生效
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assert tenant.data["push"]["enabled"] is False # 缺省补齐
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2026-10-12 16:59:31 +08:00
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# ---------- characterization：None / 列表整体替换语义 ----------
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def test_explicit_none_replaces_and_keeps_sibling():
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"""显式 None 整体替换该键；兄弟键保留默认。
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Task 9 的回退契约依赖此语义：快照里显式写 null 表示"清空/未设置"，
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不能被解读为"回落默认值"。
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"""
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merged = deep_merge(DEFAULT_CONFIG, {"ai": {"api_key": None}})
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assert merged["ai"]["api_key"] is None # 显式 None 生效
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assert merged["ai"]["model"] == "glm-4-flash" # 兄弟键保留默认
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def test_list_replaced_wholesale():
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"""列表整体替换，不与默认值拼接。"""
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merged = deep_merge(DEFAULT_CONFIG, {"email": {"notify_emails": ["x@y.z"]}})
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assert merged["email"]["notify_emails"] == ["x@y.z"]
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