Add subclass test case

flintinatux · May 23, 2018 · 9d22e0d · 9d22e0d
1 parent 7a10aa2
commit 9d22e0d
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/test/is.js b/test/is.js
@@ -2,10 +2,14 @@ const { expect } = require('chai')
 
 const { is } = require('..')
 
+class Foo {}
+class Bar extends Foo {}
+
 describe('is', () => {
   it('tests if object is instance of supplied contructor', () => {
     expect(is(Number, 12345)).to.be.true
     expect(is(String, 'foo')).to.be.true
+    expect(is(Foo, new Bar())).to.be.true
   })
 
   it('is curried', () =>