Use instanceOf chai matcher.

paulmillr · Dec 9, 2014 · 59be3cb · 59be3cb
1 parent a9c0b0d
commit 59be3cb
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/test-sham/set-prototype-of.js b/test-sham/set-prototype-of.js
@@ -3,21 +3,21 @@ describe('Object.setPrototypeOf(o, p)', function () {
 
   it('changes prototype to regular objects', function () {
     var obj = {a: 123};
-    expect(obj instanceof Object).to.equal(true);
+    expect(obj).to.be.an.instanceOf(Object);
     // sham requires assignment to work cross browser
     obj = Object.setPrototypeOf(obj, null);
-    expect(obj instanceof Object).to.equal(false);
+    expect(obj).not.to.be.an.instanceOf(Object);
     expect(obj.a).to.equal(123);
   });
 
   it('changes prototype to null objects', function () {
     var obj = Object.create(null);
     obj.a = 456;
-    expect(obj instanceof Object).to.equal(false);
+    expect(obj).not.to.be.an.instanceOf(Object);
     expect(obj.a).to.equal(456);
     // sham requires assignment to work cross browser
     obj = Object.setPrototypeOf(obj, {});
-    expect(obj instanceof Object).to.equal(true);
+    expect(obj).to.be.an.instanceOf(Object);
     expect(obj.a).to.equal(456);
   });