test: plugin function with empty object return

Author: gr2m

test.ts

@@ -14,6 +14,9 @@ const barPlugin = (test: Base) => {
     bar: () => "bar"
   };
 };
+const pluginWithEmptyObjectReturn = (test: Base) => {
+  return {}
+}
 
 describe("Base", () => {
   it(".plugin(fooPlugin)", () => {
@@ -27,6 +30,12 @@ describe("Base", () => {
     expect(fooBarTest.foo()).toEqual("foo");
     expect(fooBarTest.bar()).toEqual("bar");
   });
+  it(".plugin([fooPlugin, barPlugin, pluginWithVoidReturn])", () => {
+    const FooBarTest = Base.plugin([fooPlugin, barPlugin, pluginWithEmptyObjectReturn]);
+    const fooBarTest = new FooBarTest();
+    expect(fooBarTest.foo()).toEqual("foo");
+    expect(fooBarTest.bar()).toEqual("bar");
+  });
   it(".plugin(fooPlugin).plugin(barPlugin)", () => {
     const FooBarTest = Base.plugin(fooPlugin).plugin(barPlugin);
     const fooBarTest = new FooBarTest();