gah, try now

test/leak/test.js

@@ -1,27 +1,36 @@
 const path = require('path')
-const weak = require('weak')
 const rollup = require('../..')
 
-let shouldCollect = false;
-let isCollected = false;
+try {
+	const weak = require('weak')
 
-const onCollect = () => isCollected = true;
+	let shouldCollect = false;
+	let isCollected = false;
 
-let cache;
-const run = () => rollup.rollup({
-	entry: path.resolve(__dirname, 'index.js'),
-	cache
-}).then(bundle => {
-	weak(bundle, onCollect);
-	cache = bundle;
-	global.gc();
-	if (shouldCollect && !isCollected) {
-		throw new Error('Memory leak detected')
+	const onCollect = () => isCollected = true;
+
+	let cache;
+	const run = () => rollup.rollup({
+		entry: path.resolve(__dirname, 'index.js'),
+		cache
+	}).then(bundle => {
+		weak(bundle, onCollect);
+		cache = bundle;
+		global.gc();
+		if (shouldCollect && !isCollected) {
+			throw new Error('Memory leak detected')
+		}
+		shouldCollect = true;
+	})
+
+	run().then(run).then(() => console.log('Success')).catch((err) => {
+		console.error(err.message);
+		process.exit(1);
+	});
+} catch (err) {
+	if (err.code !== 'MODULE_NOT_FOUND') {
+		throw err;
 	}
-	shouldCollect = true;
-})
 
-run().then(run).then(() => console.log('Success')).catch((err) => {
-	console.error(err.message);
-	process.exit(1);
-});
+	console.log(`skipping memory leak test`);
+}