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52 lines
2.5 KiB
Plaintext
52 lines
2.5 KiB
Plaintext
import * as path from "node:path";
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import { fileURLToPath } from "node:url";
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import { build } from "esbuild";
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import { expect, test } from "vitest";
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// These declarations are unreachable from a minimal schema, but esbuild only drops them because of details that read as noise: `@__PURE__` annotations, and the `anchor()` helper in regexes.ts that exists solely because esbuild will not drop an annotated call whose argument interpolates a variable. Inlining the helper or deleting an annotation silently puts them back with no other test going red.
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//
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// Rollup drops all of these regardless, so a rollup fixture would report no difference and prove nothing. This has to run under esbuild.
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const here = path.dirname(fileURLToPath(import.meta.url));
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const MINI = path.resolve(here, "../../../mini/index.ts");
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const CLASSIC = path.resolve(here, "../../../index.ts");
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async function bundle(entrypoint: string, source: string): Promise<string> {
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const result = await build({
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stdin: {
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contents: source.replace("%ENTRY%", entrypoint),
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loader: "ts",
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resolveDir: here,
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},
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bundle: true,
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minify: true,
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format: "esm",
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target: "es2020",
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treeShaking: true,
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write: false,
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logLevel: "silent",
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});
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return result.outputFiles[0]!.text;
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}
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test("a minimal zod/mini schema drops the declarations it cannot reach", async () => {
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const out = await bundle(MINI, `import * as z from "%ENTRY%";\nconsole.log(z.boolean().parse(true));`);
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// Sanity check: the schema itself is present, so an empty bundle cannot pass this test.
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expect(out).toContain("boolean");
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expect(out, "core.ts `$brand` lost its @__PURE__ annotation").not.toContain("zod_brand");
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expect(out, "util.ts `NUMBER_FORMAT_RANGES` escaped its @__PURE__ IIFE").not.toContain("MAX_SAFE_INTEGER");
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expect(out, "regexes.ts `date` is pinned again — was `anchor()` inlined?").not.toContain("02-29");
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}, 30000);
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// `registries.ts` is dropped from the mini module graph entirely, so its two symbols are absent there before and after. Classic is the entrypoint that exercises them.
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test("a minimal classic schema drops the registry symbols", async () => {
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const out = await bundle(CLASSIC, `import * as z from "%ENTRY%";\nconsole.log(z.boolean().parse(true));`);
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expect(out).toContain("boolean");
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expect(out, "registries.ts `$output` lost its @__PURE__ annotation").not.toContain("ZodOutput");
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expect(out, "registries.ts `$input` lost its @__PURE__ annotation").not.toContain("ZodInput");
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}, 30000);
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