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本批内容见 CHANGELOG.md 的 0.2.4 段。按 D41 用孤儿快照推 main,保留「公开史只有里程碑」的模型。
134 lines
5.4 KiB
Rust
134 lines
5.4 KiB
Rust
//! Ink Cat 容器层可视性门禁(M228 债务裁决的可测一半):状态容器 1.20 门禁、阶梯单调、
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//! 以及「容器层不能当状态指示」的实测钉子。
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//!
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//! 与 `ink_cat_boards.rs` / `ink_cat_geometry.rs` 分开是单文件 ≤400 行的硬约束。
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use unlucky_design::color::{BrandBoard, Color, Role, SchemeFlavor};
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use unlucky_design::palette::visibility::{
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check_surface_hierarchy, LAYER_ROLES, STATE_CONTAINERS, STATE_CONTAINER_MIN,
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};
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use unlucky_design::palette::wcag::AA_TEXT;
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#[test]
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fn state_containers_clear_the_visibility_floor() {
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// 债务台账「SecondaryContainer 对 Surface 仅 1.06」的令牌层裁决:状态容器 ≥1.20:1。
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for board in BrandBoard::ALL {
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let report = check_surface_hierarchy(&board.scheme());
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assert!(
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report.state_failures().is_empty(),
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"{} 的状态容器未达 {STATE_CONTAINER_MIN}:1:{:?}",
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board.name(),
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report.state_failures()
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);
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let (role, ratio) = report.worst_state();
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assert!(
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ratio >= STATE_CONTAINER_MIN,
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"{} 最弱的状态容器 {} 只有 {ratio:.3}",
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board.name(),
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role.name()
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);
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// 旧 baseline 的现场值 1.057 必须被显著甩开,否则「修了但没修好」。
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assert!(
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ratio > 1.20,
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"{} 只是刚好卡线({ratio:.3}),等于没修",
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board.name()
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);
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}
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// 两套板覆盖 4 个状态容器角色,一个不落。
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assert_eq!(STATE_CONTAINERS.len(), 4);
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}
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#[test]
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fn surface_container_ladder_is_monotone_with_visible_steps() {
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for board in BrandBoard::ALL {
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let report = check_surface_hierarchy(&board.scheme());
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assert!(
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report.layer_violations().is_empty(),
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"{} 的容器阶梯有断层或方向错:{:?}",
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board.name(),
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report.layer_violations()
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);
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assert!(report.is_clean(), "{} 的容器层体检没过", board.name());
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// 方向:深色板越靠上越亮、浅色板越靠上越暗。
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let steps = report.layer_steps();
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for step in steps {
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let expect_positive = board.flavor() == SchemeFlavor::Dark;
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assert_eq!(
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step.delta_lstar > 0.0,
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expect_positive,
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"{} 的 {} 阶梯方向错",
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board.name(),
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step.role.name()
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);
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}
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assert_eq!(LAYER_ROLES.len(), 5);
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}
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}
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#[test]
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fn container_layers_are_not_state_indicators() {
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// 裁决第 3 条的可测化一半:把「状态容器压在容器层上」的最差值钉住,提醒后来者
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// 别把它当唯一指示(浅色板必然贴到 1.02,深色板 1.54)。
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let worst_over_layers = |board: BrandBoard| {
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let scheme = board.scheme();
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STATE_CONTAINERS
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.iter()
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.flat_map(|role| {
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LAYER_ROLES
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.iter()
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.map(move |layer| (*role, *layer, scheme.contrast(*role, *layer)))
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})
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.map(|(_, _, ratio)| ratio)
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.fold(f32::INFINITY, f32::min)
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};
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let silver = worst_over_layers(BrandBoard::Silver);
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assert!(
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(1.0..1.1).contains(&silver),
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"Silver 的状态容器对容器层最低 = {silver:.3},与「浅色 pale-on-pale 必然贴近」的登记(1.02)不符"
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);
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// Ink 相反:深色板的状态容器与容器层拉得开,所以深色可以靠底色差做弱指示。
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let ink = worst_over_layers(BrandBoard::Ink);
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assert!(
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ink >= 1.5,
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"Ink 最弱的状态容器对容器层 = {ink:.3},应明显高于浅色板"
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);
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// 两条一起说明「为什么这不是调色问题而是构成问题」:同一套算法下深色能做的弱指示,
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// 浅色做不到——所以门禁不能按容器层设,只能按 surface 设。
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assert!(silver < ink);
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}
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#[test]
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fn field_backdrop_is_the_same_role_on_both_boards() {
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// P2-1 的回归钉子:字段底在两套板都是 `surface-container-highest`。
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// 若把 Silver 的字段底挪回 `surface-container-high`(#E4E4E5),错误标签会从 4.69 掉到 4.38(AA 失守)。
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for board in BrandBoard::ALL {
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let scheme = board.scheme();
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for (fg, usage) in [
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(Role::OnSurfaceVariant, "字段标签"),
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(Role::OnSurface, "字段内容"),
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(Role::Error, "错误字段标签"),
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] {
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let ratio = scheme.contrast(fg, Role::SurfaceContainerHighest);
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assert!(
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ratio >= AA_TEXT,
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"{} 的{usage}({} on surface-container-highest)= {ratio:.3}",
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board.name(),
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fg.name()
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);
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}
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}
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// 浅色板的 high 必须比 highest 更亮、且是另一个色(阶梯方向 + 不许两档同值)。
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let silver = BrandBoard::Silver.scheme();
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let high = silver.get(Role::SurfaceContainerHigh);
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let highest = silver.get(Role::SurfaceContainerHighest);
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assert_ne!(high, highest);
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assert!(
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high.lstar() > highest.lstar(),
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"Silver 的 surface-container-high 应比 highest 更亮(高 {} vs 最高 {})",
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high.lstar(),
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highest.lstar()
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);
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// 规格卡给的字段底就是 highest 那个值。
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assert_eq!(highest, Color::from_hex("#DCDDDE").expect("规格卡字段底"));
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}
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