85 lines
2.5 KiB
JavaScript
85 lines
2.5 KiB
JavaScript
const test = require("node:test");
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const assert = require("node:assert/strict");
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const fs = require("node:fs");
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const vm = require("node:vm");
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function runtime(storage = new Map()) {
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const counts = { location: 0, request: 0 };
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let fail = false;
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let release;
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const module = { exports: {} };
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vm.runInNewContext(fs.readFileSync("pets-fe/utils/environment.js", "utf8"), {
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module,
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wx: {
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getStorageSync: (key) => storage.get(key),
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setStorageSync: (key, value) => storage.set(key, value),
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getSetting: (opts) => opts.success({ authSetting: {} }),
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getLocation: (opts) => {
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counts.location++;
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opts.success({ latitude: 25, longitude: 102 });
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},
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},
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require: () => ({
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secure: async () => {
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counts.request++;
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if (fail) throw new Error("offline");
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if (release) await release;
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return {
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location_name: "昆明市 · 五华区",
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weather: { description: "晴", temperature: "22" },
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};
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},
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}),
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});
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return {
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api: module.exports,
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counts,
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storage,
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fail: () => {
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fail = true;
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},
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hold: (promise) => {
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release = promise;
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},
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};
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}
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test("页面重建与返回复用同一轮天气请求，点击可以刷新", async () => {
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const r = runtime();
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let finish;
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r.hold(
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new Promise((resolve) => {
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finish = resolve;
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}),
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);
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const first = r.api.refresh();
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assert.equal(r.api.refresh(), first);
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finish();
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await first;
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await r.api.refresh();
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await r.api.refresh();
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assert.equal(r.counts.location, 1);
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assert.equal(r.counts.request, 1);
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await r.api.refresh(true);
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assert.equal(r.counts.request, 2);
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assert.equal(r.api.cached().weatherLabel, "晴 22°C");
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const saved = r.storage.get("pet_environment_v1");
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assert.equal("latitude" in saved, false);
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assert.equal("longitude" in saved, false);
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});
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test("冷启动先读取上次缓存，再请求一次；失败保留缓存且不会返回就重试", async () => {
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const previous = runtime();
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await previous.api.refresh();
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const next = runtime(previous.storage);
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assert.equal(next.api.cached().locationName, "昆明市 · 五华区");
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assert.equal(next.counts.request, 0);
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next.fail();
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await assert.rejects(next.api.refresh(), /offline/);
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await assert.rejects(next.api.refresh(), /offline/);
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assert.equal(next.counts.request, 1);
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assert.equal(next.api.cached().weatherLabel, "晴 22°C");
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await assert.rejects(next.api.refresh(true), /offline/);
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assert.equal(next.counts.request, 2);
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});
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