Carlos Florêncio
68 lines
1.9 KiB
TypeScript
68 lines
1.9 KiB
TypeScript
import { beforeEach, describe, expect, it } from "vitest";
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import {
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__MAX_CACHE_ENTRIES,
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__lruSize,
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__markdownParseCount,
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__resetMarkdownCounters,
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normalizeCached,
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normalizeMarkdown,
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} from "./normalize-cache";
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describe("normalizeCached", () => {
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beforeEach(() => {
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__resetMarkdownCounters();
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});
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it("parses once for repeated identical input (cache hit)", () => {
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const input = "```go\nfunc f() {}```\nprose";
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const first = normalizeCached(input);
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const second = normalizeCached(input);
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expect(second).toBe(first);
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expect(__markdownParseCount()).toBe(1);
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});
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it("parses again for different input", () => {
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normalizeCached("alpha");
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normalizeCached("beta");
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expect(__markdownParseCount()).toBe(2);
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});
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it("produces output byte-identical to normalizeMarkdown", () => {
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const inputs = [
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"```go\nfunc f() {}```\nprose",
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"Use `code` inline.",
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"",
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"single line",
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"```go\nx```\nprose\n",
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];
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for (const input of inputs) {
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expect(normalizeCached(input)).toBe(normalizeMarkdown(input));
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}
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});
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it("evicts oldest entries past the cap (bounded LRU)", () => {
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for (let i = 0; i < __MAX_CACHE_ENTRIES + 50; i++) {
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normalizeCached(`unique-content-${i}`);
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}
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expect(__lruSize()).toBeLessThanOrEqual(__MAX_CACHE_ENTRIES);
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});
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it("keeps a recently-used entry warm despite overflow", () => {
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normalizeCached("keep-me");
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for (let i = 0; i < __MAX_CACHE_ENTRIES; i++) {
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normalizeCached(`filler-${i}`);
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normalizeCached("keep-me"); // refresh recency each round
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}
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const before = __markdownParseCount();
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normalizeCached("keep-me");
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expect(__markdownParseCount()).toBe(before); // still cached, no new parse
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});
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it("__resetMarkdownCounters clears cache and counter", () => {
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normalizeCached("something");
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__resetMarkdownCounters();
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expect(__markdownParseCount()).toBe(0);
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expect(__lruSize()).toBe(0);
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});
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});
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