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svelte/test/js/index.js

73 lines
1.9 KiB

import * as assert from "assert";
import * as fs from "fs";
import * as path from "path";
import * as colors from "kleur";
import { loadConfig, svelte, shouldUpdateExpected } from "../helpers.js";
describe("js", () => {
fs.readdirSync(`${__dirname}/samples`).forEach(dir => {
if (dir[0] === ".") return;
// add .solo to a sample directory name to only run that test
const solo = /\.solo/.test(dir);
if (solo && process.env.CI) {
throw new Error("Forgot to remove `solo: true` from test");
}
dir = path.resolve(`${__dirname}/samples`, dir);
if (!fs.existsSync(`${dir}/input.svelte`)) {
console.log(colors.red().bold(`Missing file ${dir}/input.svelte. If you recently switched branches you may need to delete this directory`));
return;
}
(solo ? it.only : it)(dir, () => {
const config = loadConfig(`${dir}/_config.js`);
const input = fs.readFileSync(`${dir}/input.svelte`, "utf-8").replace(/\s+$/, "");
let actual;
try {
const options = Object.assign(config.options || {});
actual = svelte.compile(input, options).js.code.replace(/generated by Svelte v\d+\.\d+\.\d+(-\w+\.\d+)?/, 'generated by Svelte vX.Y.Z');
} catch (err) {
console.log(err.frame);
throw err;
}
const output = `${dir}/_actual.js`;
fs.writeFileSync(output, actual);
const expectedPath = `${dir}/expected.js`;
let expected = '';
try {
expected = fs.readFileSync(expectedPath, "utf-8");
} catch (error) {
console.log(error);
if (error.code === 'ENOENT') {
// missing expected.js
fs.writeFileSync(expectedPath, actual);
}
}
try {
assert.equal(
actual.trim().replace(/^[ \t]+$/gm, ""),
expected.trim().replace(/^[ \t]+$/gm, "")
);
} catch (error) {
if (shouldUpdateExpected()) {
fs.writeFileSync(expectedPath, actual);
console.log(`Updated ${expectedPath}.`);
} else {
throw error;
}
}
});
});
});