tests/driver.js


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const isAsync = f =>
	typeof f.then === 'function' &&
	f[Symbol.toStringTag] === 'Promise';

const t = ({ colors, err, assert }) => ({
	assert,
	tap: x => {
		err(`tap: ${x}\n`);
		return x;
	},
	start: msg => {
		err(`${msg}:\n`);
	},
	test: async (msg, fn) => {
		err(`${colors.yellow("testing")}: ${msg}... `);
		try {
			if (isAsync(fn)) {
				await fn();
			} else {
				fn();
			}
		} catch (e) {
			err(`${colors.red("ERR")}.\n`);
			throw e;
		}
		err(`${colors.green("OK")}.\n`);
	},
});

export const runTests = async (conf, tests) => {
	for (const testFn of tests) {
		await testFn(t(conf));
	}
};