Merge pull request #4480 from Mischi/chai-as-promised_fulfilled

add fulfilled to chai-as-promise

chai-as-promised/chai-as-promised-tests.ts

@@ -9,6 +9,7 @@ chai.use(chaiAsPromised);
 var promise: any;
 chai.expect(promise).to.eventually.equal(3);
 chai.expect(promise).to.become(3);
+chai.expect(promise).to.be.fulfilled;
 chai.expect(promise).to.be.rejected;
 chai.expect(promise).to.be.rejectedWith(Error);
 chai.expect(promise).to.notify(() => console.log('done'));

chai-as-promised/chai-as-promised.d.ts

@@ -14,6 +14,7 @@ declare module Chai {
 
     interface Assertion {
         become(expected: any): Assertion;
+        fulfilled: Assertion;
         rejected: Assertion;
         rejectedWith(expected: any): Assertion;
         notify(fn: Function): Assertion;