1import { ProjectId, ThreadId, type VcsStatusResult } from "@t3tools/contracts";
2import { act, type ComponentProps, type ReactNode } from "react";
3import { create, type ReactTestRenderer } from "react-test-renderer";
4import { afterEach, expect, it, vi } from "vite-plus/test";
5
6import { AppAtomRegistryProvider } from "../rpc/atomRegistry";
7import { makeThreadFixture } from "../test-fixtures";
8
9const state = vi.hoisted(() => ({ queries: [] as string[] }));
10
11vi.mock("../state/entities", () => ({ useProject: () => null, useServerConfigs: () => new Map() }));
12vi.mock("../uiStateStore", () => ({ useUiStateStore: () => undefined }));
13vi.mock("../state/vcs", async () => {
14 const { AsyncResult, Atom } = await import("effect/reactivity");
15 const statuses = Atom.family((cwd: string) =>
16 Atom.make(() => {
17 state.queries.push(`vcs:${cwd}`);
18 return AsyncResult.success({
19 isRepo: true,
20 hasPrimaryRemote: true,
21 isDefaultRef: false,
22 refName: "feature/test",
23 hasWorkingTreeChanges: false,
24 workingTree: { files: [], insertions: 0, deletions: 0 },
25 hasUpstream: true,
26 aheadCount: 0,
27 behindCount: 0,
28 pr: {
29 number: 42,
30 title: "Observed worktree PR",
31 url: "https://github.com/example/repo/pull/42",
32 baseRef: "main",
33 headRef: "feature/test",
34 state: "open",
35 },
36 } satisfies VcsStatusResult);
37 }),
38 );
39 return {
40 vcsEnvironment: { status: ({ input }: { input: { cwd: string } }) => statuses(input.cwd) },
41 };
42});
43vi.mock("../state/pullRequests", async (importOriginal) => {
44 const original = await importOriginal<typeof import("../state/pullRequests")>();
45 const { AsyncResult, Atom } = await import("effect/reactivity");
46 const { ProjectId } = await import("@t3tools/contracts");
47 const summaries = Atom.family((number: number) =>
48 Atom.make(() => {
49 state.queries.push(`pr:${number}`);
50 return AsyncResult.success({
51 provider: "github" as const,
52 projectId: ProjectId.make("project-test"),
53 repository: "example/repo",
54 number,
55 title: "Observed linked PR",
56 url: `https://github.com/example/repo/pull/${number}`,
57 state: "open" as const,
58 headBranch: "feature/test",
59 baseBranch: "main",
60 updatedAt: "2026-09-04T00:00:00.000Z",
61 });
62 }),
63 );
64 return {
65 ...original,
66 linkedPullRequestDetailAtom: ({ input }: { input: { number: number } }) =>
67 summaries(input.number),
68 };
69});
70vi.mock("./ui/tooltip", async () => {
71 const { cloneElement, isValidElement } = await import("react");
72 return {
73 Tooltip: ({ children }: { children: ReactNode }) => <>{children}</>,
74 TooltipTrigger({
75 render,
76 children,
77 }: ComponentProps<typeof import("./ui/tooltip").TooltipTrigger>) {
78 return isValidElement(render) ? cloneElement(render, undefined, children) : children;
79 },
80 TooltipPopup: () => null,
81 };
82});
83
84import { ThreadRowLeadingStatus } from "./ThreadStatusIndicators";
85
86afterEach(() => {
87 vi.unstubAllGlobals();
88});
89
90it("leases only visible palette results while retaining observed and cached PR badges", async () => {
91 const observers: Array<{ setVisible: (visible: boolean) => void }> = [];
92 const scrollRoot = {};
93 vi.stubGlobal("IS_REACT_ACT_ENVIRONMENT", true);
94 vi.stubGlobal(
95 "IntersectionObserver",
96 class {
97 constructor(callback: (entries: ReadonlyArray<{ isIntersecting: boolean }>) => void) {
98 observers.push({ setVisible: (visible) => callback([{ isIntersecting: visible }]) });
99 }
100 observe() {}
101 disconnect() {}
102 },
103 );
104 const threads = Array.from({ length: 128 }, (_, index) =>
105 makeThreadFixture({
106 id: ThreadId.make(`palette-thread-${index}`),
107 branch: "feature/test",
108 worktreePath: `/test/worktree-${index}`,
109 linkedPullRequest:
110 index % 2 === 0
111 ? null
112 : {
113 projectId: ProjectId.make("project-test"),
114 repository: "example/repo",
115 number: index,
116 url: `https://github.com/example/repo/pull/${index}`,
117 },
118 }),
119 );
120 let renderer: ReactTestRenderer | undefined;
121 state.queries.length = 0;
122 try {
123 await act(async () => {
124 renderer = create(
125 <AppAtomRegistryProvider>
126 {threads.map((thread, index) => (
127 <span key={thread.id}>
128 <ThreadRowLeadingStatus
129 thread={thread}
130 snapshot={
131 index === 126
132 ? {
133 branch: "feature/test",
134 sourceControlProvider: undefined,
135 pr: {
136 number: 126,
137 title: "Cached badge",
138 url: "https://github.com/example/repo/pull/126",
139 baseRef: "main",
140 headRef: "feature/test",
141 state: "open",
142 },
143 }
144 : undefined
145 }
146 />
147 {thread.title}
148 </span>
149 ))}
150 </AppAtomRegistryProvider>,
151 { createNodeMock: () => ({ parentElement: { closest: () => scrollRoot } }) },
152 );
153 });
154 const mounted = renderer!;
155 const badgeCount = () =>
156 mounted.root.findAll(
157 (node) => node.type === "span" && String(node.props["aria-label"] ?? "").startsWith("PR #"),
158 ).length;
159 expect(observers).toHaveLength(128);
160 expect(state.queries).toEqual([]);
161 expect(badgeCount()).toBe(1);
162
163 await act(async () => {
164 for (const observer of observers.slice(0, 8)) observer.setVisible(true);
165 });
166 expect(state.queries).toHaveLength(8);
167 expect(state.queries.filter((key) => key.startsWith("vcs:"))).toHaveLength(4);
168 expect(state.queries.filter((key) => key.startsWith("pr:"))).toHaveLength(4);
169 expect(badgeCount()).toBe(9);
170
171 await act(async () => {
172 for (const observer of observers.slice(0, 8)) observer.setVisible(false);
173 for (const observer of observers.slice(8, 16)) observer.setVisible(true);
174 });
175 expect(state.queries).toHaveLength(16);
176 expect(badgeCount()).toBe(17);
177 } finally {
178 await act(async () => renderer?.unmount());
179 }
180});