Files

65 lines
2.4 KiB
TypeScript

import { expect, test } from "bun:test";
import { mkdtempSync, rmSync, utimesSync, writeFileSync } from "node:fs";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { invalidateModule, loadModule, setCompileCacheDir } from "../src/pipeline.ts";
test("invalidateModule loads changed server modules without restarting the process", async () => {
const root = mkdtempSync(join(tmpdir(), "wrnexus-hmr-"));
const file = join(root, "page.ts");
setCompileCacheDir(join(root, ".wrnexus"));
try {
writeFileSync(file, "export const value = 1;\n");
expect((await loadModule(file)).value).toBe(1);
writeFileSync(file, "export const value = 2;\n");
expect((await loadModule(file)).value).toBe(1);
invalidateModule(file);
expect((await loadModule(file)).value).toBe(2);
} finally {
rmSync(root, { recursive: true, force: true });
}
});
test("invalidateModule recompiles changed WRN files in-process", async () => {
const root = mkdtempSync(join(tmpdir(), "wrnexus-hmr-"));
const file = join(root, "page.wrn");
setCompileCacheDir(join(root, ".wrnexus"));
try {
writeFileSync(file, "page Home { view { <h1>First</h1> } }\n");
const first = (await loadModule(file)).default as (ctx: unknown) => unknown;
expect(String(first({}))).toContain("First");
writeFileSync(file, "page Home { view { <h1>Second</h1> } }\n");
invalidateModule(file);
const second = (await loadModule(file)).default as (ctx: unknown) => unknown;
expect(String(second({}))).toContain("Second");
} finally {
rmSync(root, { recursive: true, force: true });
}
});
test("WRN cache follows content when a replacement has an older mtime", async () => {
const root = mkdtempSync(join(tmpdir(), "wrnexus-cache-"));
const file = join(root, "component.wrn");
setCompileCacheDir(join(root, ".wrnexus"));
try {
writeFileSync(file, "component Example { view { <p>Old</p> } }\n");
const first = (await loadModule(file)).render as () => unknown;
expect(String(first())).toContain("Old");
writeFileSync(file, "component Example { view { <p>Current</p> } }\n");
utimesSync(file, new Date(0), new Date(0));
invalidateModule(file);
const current = (await loadModule(file)).render as () => unknown;
expect(String(current())).toContain("Current");
} finally {
rmSync(root, { recursive: true, force: true });
}
});