import type { PullRequestReaction, PullRequestReactionContent } from "@t3tools/contracts";import { describe, expect, it } from "vite-plus/test"; import {  applyPendingPullRequestReactions,  PULL_REQUEST_REACTION_ORDER,  pullRequestReactionEmoji,  pullRequestReactionName,  pullRequestReactionTooltip,} from "./pullRequestReactions.logic"; function reaction(overrides: Partial<PullRequestReaction> = {}): PullRequestReaction {  return {    content: "heart",    count: 1,    actors: ["octocat"],    viewerHasReacted: false,    ...overrides,  };} describe("reaction presentation", () => {  it("names and draws all eight, in GitHub's picker order", () => {    expect(PULL_REQUEST_REACTION_ORDER).toEqual([      "thumbs-up",      "thumbs-down",      "laugh",      "hooray",      "confused",      "heart",      "rocket",      "eyes",    ]);    expect(PULL_REQUEST_REACTION_ORDER.map(pullRequestReactionEmoji)).toEqual([      "👍",      "👎",      "😄",      "🎉",      "😕",      "❤️",      "🚀",      "👀",    ]);    expect(pullRequestReactionName("thumbs-up")).toBe("thumbs up");    expect(pullRequestReactionName("eyes")).toBe("eyes");  });}); describe("reaction tooltip", () => {  it("reads as GitHub's sentence for one, two and three names", () => {    expect(      pullRequestReactionTooltip(reaction({ content: "thumbs-up", count: 1, actors: ["Bil0000"] })),    ).toBe("Bil0000 reacted with thumbs up emoji");    expect(pullRequestReactionTooltip(reaction({ count: 2, actors: ["Bil0000", "octocat"] }))).toBe(      "Bil0000 and octocat reacted with heart emoji",    );    expect(      pullRequestReactionTooltip(        reaction({          content: "eyes",          count: 3,          actors: ["Bil0000", "octocat"],          viewerHasReacted: true,        }),      ),    ).toBe("You, Bil0000, and octocat reacted with eyes emoji");  });   it("counts everyone past the third name, including the ones the host never named", () => {    expect(      pullRequestReactionTooltip(        reaction({          content: "rocket",          count: 15,          actors: ["a", "b", "c", "d"],          viewerHasReacted: true,        }),      ),    ).toBe("You, a, b, and 12 others reacted with rocket emoji");    // A host that counted more than it named still says who is missing.    expect(pullRequestReactionTooltip(reaction({ count: 2, actors: ["octocat"] }))).toBe(      "octocat and 1 other reacted with heart emoji",    );    // Nothing named at all leaves the count to speak for itself, and nobody to be "other" than.    expect(pullRequestReactionTooltip(reaction({ count: 4, actors: [] }))).toBe(      "4 people reacted with heart emoji",    );    expect(pullRequestReactionTooltip(reaction({ count: 1, actors: [] }))).toBe(      "1 person reacted with heart emoji",    );  });   it("names the viewer as You, ahead of the other people who reacted", () => {    // The host already leaves the viewer's own login out of `actors`.    expect(      pullRequestReactionTooltip(        reaction({ count: 3, actors: ["Bil0000", "octocat"], viewerHasReacted: true }),      ),    ).toBe("You, Bil0000, and octocat reacted with heart emoji");  });   it("names nobody as You when the viewer has not reacted", () => {    expect(      pullRequestReactionTooltip(        reaction({ count: 2, actors: ["Bil0000", "octocat"], viewerHasReacted: false }),      ),    ).toBe("Bil0000 and octocat reacted with heart emoji");  });   it("names actors as given, and leaves off You, for a host with no room for the viewer", () => {    // `count` says two and `actors` already lists two logins, one of them the viewer's own —    // there is no slot left for "You" that wouldn't invent or hide a real reactor.    expect(      pullRequestReactionTooltip(        reaction({ count: 2, actors: ["Bil0000", "octocat"], viewerHasReacted: true }),      ),    ).toBe("Bil0000 and octocat reacted with heart emoji");    // Same shape past the naming cap: the display limit still leaves an honest remainder.    expect(      pullRequestReactionTooltip(        reaction({          count: 4,          actors: ["Bil0000", "octocat", "hubot", "zzz"],          viewerHasReacted: true,        }),      ),    ).toBe("Bil0000, octocat, hubot, and 1 other reacted with heart emoji");  });   it("keeps naming the viewer You when the host does leave them room", () => {    // `actors` has fewer logins than `count`, so the viewer fits without being counted twice.    expect(      pullRequestReactionTooltip(        reaction({ count: 2, actors: ["octocat"], viewerHasReacted: true }),      ),    ).toBe("You and octocat reacted with heart emoji");  });}); describe("reaction tooltip, with a reaction in flight", () => {  it("still says You after an optimistic react, even at full capacity", () => {    // The host's last snapshot had every reactor named and nobody left over; the optimistic    // bump grows `count` without touching `actors`, so there is now room for "You" and the    // sentence should use it rather than reading as a non-compliant host.    const applied = applyPendingPullRequestReactions(      [reaction({ count: 2, actors: ["a", "b"], viewerHasReacted: false })],      new Map([["heart", true] as const]),    );    expect(pullRequestReactionTooltip(applied[0]!)).toBe("You, a, and b reacted with heart emoji");  });   it("drops You after an optimistic un-react, without treating the host as non-compliant", () => {    const applied = applyPendingPullRequestReactions(      [reaction({ count: 2, actors: ["octocat"], viewerHasReacted: true })],      new Map([["heart", false] as const]),    );    expect(pullRequestReactionTooltip(applied[0]!)).toBe("octocat reacted with heart emoji");  });}); describe("pending reactions", () => {  const pending = (    entries: ReadonlyArray<readonly [PullRequestReactionContent, boolean]>,  ): ReadonlyMap<PullRequestReactionContent, boolean> => new Map(entries);   it("returns the host's list untouched while nothing is in flight", () => {    const reactions = [reaction()];    expect(applyPendingPullRequestReactions(reactions, pending([]))).toBe(reactions);  });   it("adds a reaction nobody had yet, in picker order", () => {    const applied = applyPendingPullRequestReactions(      [reaction({ content: "rocket", count: 2, actors: ["a", "b"] })],      pending([["thumbs-up", true]]),    );    expect(applied).toEqual([      { content: "thumbs-up", count: 1, actors: [], viewerHasReacted: true },      { content: "rocket", count: 2, actors: ["a", "b"], viewerHasReacted: false },    ]);  });   it("joins and leaves an existing reaction, and drops the pill nobody is left on", () => {    expect(      applyPendingPullRequestReactions(        [reaction({ count: 2, actors: ["a", "b"] })],        pending([["heart", true]]),      ),    ).toEqual([{ content: "heart", count: 3, actors: ["a", "b"], viewerHasReacted: true }]);    expect(      applyPendingPullRequestReactions(        [reaction({ count: 2, actors: ["a", "b"], viewerHasReacted: true })],        pending([["heart", false]]),      ),    ).toEqual([{ content: "heart", count: 1, actors: ["a", "b"], viewerHasReacted: false }]);    expect(      applyPendingPullRequestReactions(        [reaction({ count: 1, viewerHasReacted: true })],        pending([["heart", false]]),      ),    ).toEqual([]);  });   it("ignores a pending state the host has already caught up with", () => {    const reactions = [reaction({ count: 3, viewerHasReacted: true })];    expect(applyPendingPullRequestReactions(reactions, pending([["heart", true]]))).toEqual(      reactions,    );    expect(applyPendingPullRequestReactions([], pending([["heart", false]]))).toEqual([]);  });});