all repos — h3 @ 75edd0e1d8dac0c1f27ee873378ceb7929b5706f

A tiny, extremely minimalist JavaScript microframework.

__tests__/store.js

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const h3 = require("../h3.js").default;

describe("h3 (Store)", () => {
  beforeEach(async () => {
    const test = () => {
      h3.on("$init", () => ({ online: true }));
      h3.on("$stop", () => ({ online: false }));
      h3.on("online/set", (state, data) => ({ online: data }));
    };
    return await h3.init({ modules: [test], routes: { "/": () => h3("div") } });
  });

  afterEach(() => {
    h3.dispatch("$stop");
  });

  it("should expose a method to retrieve the application state", () => {
    expect(h3.state.online).toEqual(true);
  });

  it("should expose a method to dispatch messages", () => {
    expect(h3.state.online).toEqual(true);
    h3.dispatch("online/set", "YEAH!");
    expect(h3.state.online).toEqual("YEAH!");
  });

  it("should expose a method to subscribe to messages (and also cancel subscriptions)", () => {
    const sub = h3.on("online/clear", () => ({ online: undefined }));
    h3.dispatch("online/clear");
    expect(h3.state.online).toEqual(undefined);
    h3.dispatch("online/set", "reset");
    expect(h3.state.online).toEqual("reset");
    sub();
    h3.dispatch("online/clear");
    expect(h3.state.online).toEqual("reset");
  });
});