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8c1b9fe | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | // Dependency-free unit tests for the theme switcher logic (run: npm run test:theme).
import assert from "node:assert/strict";
import { execFileSync } from "node:child_process";
import { mkdtempSync } from "node:fs";
import { tmpdir } from "node:os";
import { join } from "node:path";
// Compile theme.ts -> JS with the project's TypeScript, then import it.
const dir = mkdtempSync(join(tmpdir(), "theme-test-"));
execFileSync(
"node",
[
"node_modules/typescript/bin/tsc",
"lib/theme.ts",
"--module", "esnext",
"--target", "es2021",
"--moduleResolution", "bundler",
"--outDir", dir,
],
{ stdio: "inherit" },
);
const { THEME_ORDER, nextTheme, coerceTheme, isTheme } = await import(join(dir, "theme.js"));
let passed = 0;
const t = (name, fn) => {
fn();
passed++;
console.log(" ok", name);
};
t("exposes the three modes in cycle order", () => {
assert.deepEqual(THEME_ORDER, ["dark", "light", "comfort"]);
});
t("nextTheme cycles dark -> light -> comfort -> dark", () => {
assert.equal(nextTheme("dark"), "light");
assert.equal(nextTheme("light"), "comfort");
assert.equal(nextTheme("comfort"), "dark");
});
t("isTheme validates membership", () => {
assert.equal(isTheme("comfort"), true);
assert.equal(isTheme("neon"), false);
assert.equal(isTheme(null), false);
});
t("coerceTheme falls back to dark for garbage", () => {
assert.equal(coerceTheme("light"), "light");
assert.equal(coerceTheme("bogus"), "dark");
assert.equal(coerceTheme(undefined), "dark");
});
console.log(`\nTheme switcher: ${passed} tests passed`);
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