Unlucky Launcher v0.2.1
Single-commit source snapshot of the v0.2.1 release.
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//! 进度两式的纯函数断言(`tests` 的子模块,从 `tests.rs` 拆出来控行数)。
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//!
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//! 三条回归都住在这里:
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//! - [`raw_segments_are_unordered_and_layout_sorts_them`]:`phase_segments` 的原始输出**不有序**
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//! (视觉 r1 P1-A 就是把两段按顺序铺 `FillPortion`,图上被压成一段);
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//! - [`portion_shares_always_sum_to_the_full_track`]:份额之和恒为 1000(旧实现 34/100 相位 >1);
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//! - [`circular_indeterminate_rotation_is_four_turns_and_continuous`]:每周期 4 圈、跨周期不跳变
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//! (代码 r1 P1-B:旧实现只有 1 圈,且末尾倒跳 270°)。
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use unlucky_design::color::SchemeFlavor;
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use unlucky_design::shape::ShapeScale;
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use super::super::geometry::{phase_segments, CircularGeometry, LinearGeometry, PHASE_055};
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use super::super::keyframes::{KeyPoint, Keyframes};
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use super::super::progress::{layout_spans, portion_shares, Amount, Progress};
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use super::ui;
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// ---- §12 进度 ---------------------------------------------------------------
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/// 12.1:线性厚度 **4**、圆角 full ⇒ 2(`ShapeScale::Full.radius_px(4)`)。
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#[test]
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fn linear_thickness_and_radius_come_from_the_tokens() {
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let geometry = LinearGeometry::of(&ui(SchemeFlavor::Light));
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assert_eq!(geometry.thickness, 4.0, "12.1 线性厚度 = 4(A1 Height)");
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assert_eq!(
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geometry.radius,
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ShapeScale::Full.radius_px(4.0),
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"12.1 圆角 full = 厚的一半"
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);
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assert_eq!(geometry.radius, 2.0);
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assert_eq!(
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geometry.cycle_ms, 1750,
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"不定态周期 = LinearAnimationDuration"
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);
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}
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/// 12.3:环形 **40 / 4**,环中线半径 (40 − 4) / 2 = **18**。
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#[test]
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fn circular_geometry_matches_the_tokens() {
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let geometry = CircularGeometry::of(&ui(SchemeFlavor::Dark));
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assert_eq!(
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geometry.diameter, 40.0,
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"A1 CircularProgressIndicatorTokens.Size"
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);
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assert_eq!(geometry.thickness, 4.0, "A1 ActiveThickness");
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assert_eq!(geometry.radius, 20.0, "圆角 full = 直径的一半");
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assert_eq!(geometry.arc_radius(), 18.0);
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assert_eq!(
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geometry.cycle_ms, 6000,
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"A1 CircularAnimationProgressDuration"
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);
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}
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/// 12.4:不定态两段**逐段非负**——这条只证「单段自身合法」,**不证两段的先后**
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/// (视觉 r1 P1-A 就是从这里漏过去的:函数名曾经叫 `..._stay_ordered`,其实没验排序)。
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#[test]
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fn indeterminate_segments_are_each_well_formed() {
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let mut travelled = false;
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let mut previous_end = 0.0;
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for step in 0..=200 {
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let phase = step as f32 / 200.0;
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for (start, end) in phase_segments(phase) {
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assert!(
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start <= end + f32::EPSILON,
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"相位 {phase:.3}:段起点 {start} 大于终点 {end}(前缘/后缘写反就会这样)"
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);
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assert!(
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(0.0..=1.0).contains(&start) && (0.0..=1.0).contains(&end),
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"相位 {phase:.3}:段越出轨道 {start}..{end}"
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);
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}
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let first = phase_segments(phase)[0].1;
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if phase > 0.0 && phase < 0.5 && first > previous_end {
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travelled = true;
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}
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previous_end = first;
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}
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assert!(travelled, "段前沿必须随相位右移(否则就是一根不动的条)");
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assert_eq!(phase_segments(0.0), [(0.0, 0.0), (0.0, 0.0)]);
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let (_, head) = phase_segments(1000.0 / 1750.0)[0];
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assert!((head - 1.0).abs() < 1.0e-5, "第一线前沿应在 1000ms 到 1.0");
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}
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/// **复审 P1-A 的回归测试**:`phase_segments` 的原始输出**不有序**(第一线的前缘在右、第二线在左),
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/// 所以铺布局前必须排序 + 合并;排序后的两段位置要与 A1 keyframes 对得上。
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#[test]
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fn raw_segments_are_unordered_and_layout_sorts_them() {
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// 原始顺序:第一线(右,0.355..0.87)在前,第二线(左,0.003..0.079)在后
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let raw = phase_segments(0.55);
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assert!(
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raw[0].0 > raw[1].0,
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"phase 0.55 的原始两段应当是「右段在前、左段在后」,实际 {raw:?}"
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);
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let laid = layout_spans(&raw);
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// 期望:间隙 / 左段 / 间隙 / 右段 / 间隙(5 项,总长 1.0)
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assert_eq!(laid.len(), 5, "两段应摊成 5 项:{laid:?}");
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assert!(!laid[0].0 && laid[1].0 && !laid[2].0 && laid[3].0 && !laid[4].0);
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let left = laid[1].1;
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let right = laid[3].1;
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let left_start: f32 = laid[0].1;
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let right_start: f32 = laid[0].1 + left + laid[2].1;
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// 期望值来自 `geometry::PHASE_055`——与渲染层探针**共用**(复审 B:早先两边差 0.011)
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let [(a0, a1), (b0, b1)] = PHASE_055;
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assert!(
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(left_start - a0).abs() < 0.01,
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"左段起点 {left_start} vs {a0}"
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);
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assert!(
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(left - (a1 - a0)).abs() < 0.01,
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"左段宽 {left} vs {}",
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a1 - a0
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);
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assert!(
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(right_start - b0).abs() < 0.01,
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"右段起点 {right_start} vs {b0}"
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);
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assert!(
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(right - (b1 - b0)).abs() < 0.01,
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"右段宽 {right} vs {}",
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b1 - b0
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);
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let total: f32 = laid.iter().map(|(_, fraction)| fraction).sum();
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assert!(
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(total - 1.0).abs() < 1.0e-5,
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"铺开的占比之和必须 = 1.0,实测 {total}"
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);
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}
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/// 任意相位下 `FillPortion` 份额之和**恒为 1000**(iced 按总和归一 ⇒ 不等于 1000 就会压扁)。
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///
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/// 复审 P1-A 的实测反例:旧实现 **34/100 个相位**总和 >1(最大 1.99)。
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#[test]
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fn portion_shares_always_sum_to_the_full_track() {
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for step in 0..=200 {
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let phase = step as f32 / 200.0;
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let items = layout_spans(&phase_segments(phase));
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let shares = portion_shares(&items);
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let total: u32 = shares.iter().map(|(_, share)| u32::from(*share)).sum();
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assert_eq!(total, 1000, "相位 {phase:.3} 的份额之和是 {total}");
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assert!(
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shares.iter().filter(|(is_bar, _)| *is_bar).count() <= 2,
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"最多两段指示条,相位 {phase:.3}"
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);
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// 指示条之间必须留间隙(除非两段相接,那时会被合并成一段)
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let mut previous_bar = false;
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for (is_bar, share) in &shares {
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if *is_bar && previous_bar && *share > 0 {
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panic!("相位 {phase:.3}:两段指示条相邻但没合并");
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}
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previous_bar = *is_bar;
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}
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}
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}
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/// 环形不定态:弧长在 0.1..0.87 之间(A1 min/max),旋转走满一圈。
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#[test]
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fn circular_indeterminate_sweeps_the_official_range() {
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let geometry = CircularGeometry::of(&ui(SchemeFlavor::Light));
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let mut min = f32::MAX;
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let mut max = f32::MIN;
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let mut rotation = f32::MIN;
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for step in 0..=600 {
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let (sweep, spin) = geometry.indeterminate(step as f32 / 600.0);
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min = min.min(sweep);
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max = max.max(sweep);
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rotation = rotation.max(spin);
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}
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assert!(
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(min - 0.1).abs() < 1.0e-3,
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"弧长下限 0.1(CircularIndeterminateMinProgress),实测 {min}"
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);
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assert!((max - 0.87).abs() < 1.0e-3, "弧长上限 0.87,实测 {max}");
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// P1-B:每周期 4 圈(1080° 全局 + 360° 关键帧),不是 1 圈
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assert!(
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(rotation - 4.0).abs() < 0.01,
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"旋转应走满 4 圈,实测 {rotation}"
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);
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}
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/// **复审 P1-B 的回归测试**:环形不定态每周期 4 圈(官方 1440°),且跨周期**不跳变**。
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///
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/// 修之前:`ROTATION` 首点在 300ms/90°,且没有全局旋转 ⇒
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/// `turns(0.9999) = 1.0`、`turns(0.0) = 0.25`,跨周期差 0.75 圈 = **270° 瞬时倒跳**。
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#[test]
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fn circular_indeterminate_rotation_is_four_turns_and_continuous() {
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let geometry = CircularGeometry::of(&ui(SchemeFlavor::Light));
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// 每周期 4 圈 = 1440°(1080° 全局 + 360° 关键帧)
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let start = geometry.indeterminate(0.0).1;
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let end = geometry.indeterminate(1.0 - 1.0e-6).1;
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assert!(
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((end - start) - 4.0).abs() < 1.0e-3,
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"每周期应为 4 圈(1440°),实测 {} 圈",
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end - start
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);
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// 跨周期连续性:按「圈」取最短距离,必须 ≤ 一帧的位移(60fps ⇒ 4/60 ≈ 0.067 圈)
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let before = geometry.indeterminate(1.0 - 1.0e-4).1;
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let after = geometry.indeterminate(0.0).1;
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let mut jump = (before - after).rem_euclid(1.0);
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if jump > 0.5 {
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jump = 1.0 - jump;
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}
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assert!(
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jump <= 4.0 / 60.0,
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"跨周期旋转跳变 {jump} 圈(应 ≤ 4/60;修之前是 0.75 圈 = 270°)"
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);
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// 给报告用的一行实测数值(`--nocapture` 可见):跨周期跳变 + 每周期圈数
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eprintln!(
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"[rotation] turns(0.9999)={before:.6} turns(0.0)={after:.6} 跳变={jump:.6} 圈({:.2}°)· 每周期 {:.4} 圈 = {:.1}°",
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jump * 360.0,
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end - start,
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(end - start) * 360.0
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);
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// 旋转必须单调(相位 0 → 1 逐帧不回退,按圈算)
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// 只扫 [0, 1) 的相位:phase == 1.0 就是下一周期的 0,回绕是**正常的**(mod 1 等价)。
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let mut previous = geometry.indeterminate(0.0).1;
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for step in 1..600 {
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let phase = step as f32 / 600.0;
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let current = geometry.indeterminate(phase).1;
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assert!(
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current >= previous - 1.0e-6,
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"相位 {phase:.3}:旋转从 {previous} 回退到 {current}"
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);
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previous = current;
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}
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}
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/// 确定态:越界值夹到 0..1(0% 只画轨道,100% 画满)。
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#[test]
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fn determinate_values_are_clamped() {
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assert_eq!(
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Progress::determinate(1.5).amount(),
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Amount::Determinate(1.0)
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);
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assert_eq!(
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Progress::determinate(-2.0).amount(),
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Amount::Determinate(0.0)
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);
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assert_eq!(Progress::determinate(0.5).spans(), vec![(0.0, 0.5)]);
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assert_eq!(Progress::determinate(0.0).spans(), vec![(0.0, 0.0)]);
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}
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/// keyframes 求值器:端点保持、相位循环、越界相位按周期取模。
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#[test]
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fn keyframes_hold_ends_and_wrap() {
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const LINE: Keyframes = Keyframes {
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cycle_ms: 1000,
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points: &[
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KeyPoint {
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ms: 250,
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value: 0.0,
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easing: unlucky_design::motion::Easing::Linear,
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},
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KeyPoint {
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ms: 750,
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value: 1.0,
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easing: unlucky_design::motion::Easing::Linear,
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},
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],
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};
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assert_eq!(LINE.sample(0.0), 0.0, "第一点之前保持首值");
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assert_eq!(LINE.sample(0.25), 0.0, "正好在第一点");
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assert!((LINE.sample(0.5) - 0.5).abs() < 1.0e-5, "中点线性插值");
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assert_eq!(LINE.sample(0.75), 1.0);
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assert_eq!(LINE.sample(0.9), 1.0, "最后一点之后保持末值");
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assert_eq!(LINE.sample(1.25), 0.0, "相位 1.25 = 0.25(循环)");
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assert_eq!(
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LINE.sample(-0.75),
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0.0,
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"负相位按周期折返:-0.75 → 0.25 相位 = 250ms = 首点"
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);
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assert!(
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(LINE.sample(-0.6) - 0.3).abs() < 1.0e-5,
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"-0.6 → 0.4 相位 = 400ms = 30%"
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);
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assert_eq!(LINE.sample(f32::NAN), 0.0, "NaN 不 panic,给首值");
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}
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