108 lines
2.4 KiB
TypeScript
108 lines
2.4 KiB
TypeScript
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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const { createTerminalPerfLogBuffer, pickPerfScore } = require("./terminalPerfLogBuffer.js");
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describe("terminalPerfLogBuffer", () => {
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beforeEach(() => {
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vi.useFakeTimers();
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});
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afterEach(() => {
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vi.useRealTimers();
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});
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it("会从常见耗时字段中选出最大的 score", () => {
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expect(
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pickPerfScore({
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totalCostMs: 120,
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setDataCostMs: 320,
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overlayCostMs: 180
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})
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).toBe(320);
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expect(
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pickPerfScore({
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applyCostMs: 220,
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trimCostMs: 380,
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cloneCostMs: 260
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})
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).toBe(380);
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});
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it("会把 5 秒窗口内的高频事件聚合成 1 条摘要", () => {
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const writes = [];
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const buffer = createTerminalPerfLogBuffer({
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windowMs: 5000,
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write(summary) {
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writes.push(summary);
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}
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});
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buffer.push({
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event: "stdout.slice",
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at: 1000,
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sinceLoadMs: 100,
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status: "connected",
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totalCostMs: 240
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});
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buffer.push({
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event: "layout.refresh.long",
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at: 1800,
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sinceLoadMs: 900,
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status: "connected",
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totalCostMs: 1400,
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setDataCostMs: 1200
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});
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buffer.push({
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event: "stdout.slice",
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at: 2200,
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sinceLoadMs: 1300,
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status: "connected",
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totalCostMs: 180
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});
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vi.advanceTimersByTime(5000);
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expect(writes).toHaveLength(1);
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expect(writes[0]).toMatchObject({
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event: "perf.summary",
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count: 3,
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status: "connected"
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});
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expect(writes[0].topEvents[0]).toEqual({ event: "stdout.slice", count: 2 });
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expect(writes[0].slowest).toMatchObject({
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event: "layout.refresh.long",
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scoreMs: 1400
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});
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expect(writes[0].latest).toMatchObject({
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event: "stdout.slice"
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});
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});
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it("支持在页面收起前手动 flush，避免丢掉最后一个窗口", () => {
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const writes = [];
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const buffer = createTerminalPerfLogBuffer({
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windowMs: 5000,
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write(summary) {
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writes.push(summary);
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}
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});
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buffer.push({
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event: "overlay.sync.long",
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at: 3000,
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sinceLoadMs: 2000,
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status: "connected",
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costMs: 65000
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});
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const summary = buffer.flush("page_hide");
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expect(summary).toMatchObject({
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event: "perf.summary",
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reason: "page_hide",
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count: 1
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});
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expect(writes).toHaveLength(1);
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});
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});
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