add test for #79

Author: Rich-Harris

test/samples/custom-resolve-options/js_modules/foo.js

@@ -0,0 +1 @@
+export default 42;

test/samples/custom-resolve-options/main.js

@@ -0,0 +1,3 @@
+import foo from 'foo';
+
+assert.equal( foo, 42 );

test/test.js

@@ -437,4 +437,17 @@ describe( 'rollup-plugin-node-resolve', function () {
 			assert.deepEqual(bundle.imports, []);
 		});
 	});
+
+	it( 'allows custom options', () => {
+		return rollup.rollup({
+			entry: 'samples/custom-resolve-options/main.js',
+			plugins: [ nodeResolve({
+				customResolveOptions: {
+					moduleDirectory: 'js_modules'
+				}
+			}) ]
+		}).then( bundle => {
+			console.log( `bundle`, bundle )
+		});
+	});
 });