Simplify unit test

Author: binoculars

platform/lib.js

@@ -10,7 +10,7 @@ export function checkM3u(file, cwd) {
 			}
 		)
 			.on('close', code =>
-				code === 0 ? reject(code) : resolve(code)
+				code === 0 ? reject('File looks like an M3U, bailing out') : resolve(code)
 			)
 	);
-}
+}

test/unit/lib.js

@@ -6,19 +6,10 @@ import {checkM3u} from '../../platform/lib';
 const cwd = path.resolve(__dirname, '../fixtures');
 
 test('Check for m3u8 with valid m3u8 file', async t => {
-	try {
-		await checkM3u('bad.mp4', cwd);
-		t.fail('Promise did not reject');
-	} catch (err) {
-		t.pass();
-	}
+	const error = await t.throws(checkM3u('bad.mp4', cwd));
+	t.is(error, 'File looks like an M3U, bailing out');
 });
 
 test('Check for m3u8 with valid mp4 file', async t => {
-	try {
-		await checkM3u('good.mp4', cwd);
-		t.pass();
-	} catch (err) {
-		t.fail();
-	}
-});
+	await t.notThrows(checkM3u('good.mp4', cwd));
+});